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cp12-02-1987 cAGENDA SPECIAL MEETING /WORKSHOP - HUTCHINSON CITY COUNCIL WEDNESDAY, DECEMBER 2, 1987 1. Call to Order - 5:30 P.M. 2. Water /Sewer Fund Budget 3. Liquor Store Budget 4. Central Garage Budget 5. 1988 Improvement Projects 6. Small Cities Grant Application And Water Service Line Replacement - HCDC 7. Community Survey And /Or Calendar 8. Adjourn 0 (612) 587 -5151 CITY OF HUTCHINSON 37 WASHINGTON AVENUE WEST HUTCHINSON, MINN. 55350 M E H 0 DATE: November 19, 1987 T0: ✓Mayor and City Council FROM: Director of Engineering RE: Possible 1988 Improvement Project Report Following is a synopsis of projects proposed for 1988 construction with estimated costs, including 22 percent for City expense. The projects are being proposed due to direction from the Council, requests from adjacent affected property owners, for maintenance reasons, and /or based on engineering considerations. ESTIMATED ESTIMATED COST CITY COST Bituminous Surfacing (curb and gutter inplace) See map Exhibit "A ". a.) Colorado St. from 8th Ave. N.W. to North Terminus, $ 419500.00 $ 8th Ave. N.W. from School Road to Colorado St., and Colorado Circle from Colorado St. to cul -de -sac, as requested in a letter from Mr. Tyrone Relland. Subdivision Agreement (1986) b.) School Road from 7th Ave. N.W. to California St. as $ requested in a letter from Mr. Tyrone Relland. A portion of the cost is eligible for Municipal State Aid Funds because of the street being wider and thicker in structure than a local street. City Cost is MSA eligible. c.) Campbell Lane from approximately 300 feet north of $ Hilltop Lane to Connecticut Street in Clark's 2nd Addition. Paving the east -west portion of this street may need to be delayed until utility installation is completed to the McClure property north of Campbell Lane and west of Connecticut St., the subdividing of which is pending, but this will be studied in more detail before a final recommendation. Subdivision • Agreements for Clark's 2nd Add. (1978,1 and Campbell ake Add. (1987). 76,900.00 $ 0.00 33,700.00 19,800.00 $ 1,700.00 (Deferred $2,650.00) d.) Tvler St. and McDonald Drive in Lakewood Terrace $ 24,400.00 $ 0.00 F3urth Addition. Subdivision Agreement_ for v ^_Donald's 2nd Add. (1971). 1988 Improvement Project Report November 19, 1987 Page 2 16 e.) Lakeview Lane from School Road to Roberts Road. Subdivision Agreement for McDonald's 2nd Add. (1971) and McDonald's 3rd Add. (1971) and McDonald's 7th Add. (1983). f.) Lindy Lane, Hilltop Drive and Gene's Road in Kimberly's Country Estates. Subdivision Agreement (1983). g.) Sherwood St. from Century Ave. to 135 Feet South. Subdivision Agreement for Schmidtbauer's 1st Add. (1980) and Schmidtbauer's 2nd Add. (1981). Sub -Total * $33,700.00 is MSA eligible, $2,650.00 is Deferred Assessment. 2. Curb 6 Gutter 8 Bituminous Surfacing See Map Exhibit "B" $ 14,900.00 $ 0.00 369600.00 $ 1,950.00 $ 4,000.00 $ 218,100.00 $ 0.00 a.) Walnut St. and Hillcrest Road in Mac's Bluff Addition. $ 20,500.00 $ Subdivision Agreement (1983). b.) Shady Ridge Road from T.H. 7 to Hilltop Lane. 819' of $ 89,000.00 $ frontage is commercial, 610' is residential. Rate to equally allocate' cost between assessable frontage and non - assessable frontage is $59.00 per front foot, in which case the City Cost would be $4,689.00. Rate is $38.00 per front foot for City Cost shown. c.) Graham St. in Stilling's -Hoeft Add. $ 7,400.00 $ d.) Keith St. & Sunset St. between South Grade Rd. and $ 58,600.00 $ Chicago Ave., and Chicago Ave. from Keith St. to Sunset St. in Plaza Heights Add., as requested by adjacent property owners. Subdivision Agreement (1986) e.) Les Kouba Parkway from Luce Line Trail to T.H. 7, including intersection realignment that would require acquisition of an easement on the Cenex parcel. City Cost shown is because policy has been to assess only the narrow frontage of benefitting parcels. Abutting frontage of the parcels for this project is the long side, approximately 390' on each side. The City Cost would be about $17,500.00. Grading and aggregate base construction (no curb,and gutter and bituminous surfacing) on approximately • 1500 feet of Les Kouba Parkway in areas of unstable soils in preparation for bituminous surfacing, in accordance with August 24th, 1987, memorandum, Exhibit "C ". $ 45,600.00 $ $ 103,400.00 $ 40,000.00* W „ 34,700.00 _ 0.00 0.00 - 45,600.00 = 103,400.00 1988 Improvement Project Report November 19, 1987 Page 3 • f.) 4th Ave. S.W. from Main St. to Lynn Road, including 4" water main replacement from Grove St. to Lynn Road Rate of assessment is $49.00 for 596' of assessable frontage, plus water service replacement. 11 g.) Grove St. from 2nd Ave. S.W. to 5th Ave. S.W.. $ 1439200.00 $ 72,000.00 2nd Ave. S.W. from Franklin St. to Dale St. The County $ 457,500.00 has budgeted $150,000 as its share of the project cost. State Aid regulations require that for a minor arterial, which is the present functional classification of 2nd Ave. S.W., with projected traffic from 5,000 to 10,000 vehicles per day, the curb to curb width be 48 feet with parking on both sides, or 38 feet with parking on one side only. Present street widths vary from 40 feet to 46 feet. Any street widening would result in removing a number of boulevard trees. Rate to equally allocate cost between assessable frontage and non - assessable frontage is $61.00 per front foot, in which case the City Cost would be $91,000.00. Assessment rate is $38.00 per front foot for City Cost shown. City Cost is eligible for Municipal State Aid Funds. The County has budgeted $150,000.00, as its share of the project cost, which will reduce the City Cost to $1759000.00. $ 110,000.00 $ 38,400.00 $ 325,000.00 4" water main replacement on 2nd Ave. S.W. from $ 152,000.00 $ Franklin St. to Dale St. and on Grove St. from 2nd Ave. S.W. to 4th Ave. S.W. Assumed replacement of water main and appurtenances to be City Cost; assess service replacement. h.) Franklin St. from Washington Ave. to 1st Ave. S.W., including water main replacement, storm sewer replacement or rehabilitation, and angle parking in the area of the Police Station. Watermain replacement is assumed to be City Cost; service replacement to be assessed. Rate to equally allocate roadway cost between assessable frontage and non - assessable frontage is $163.00 per front foot, in which case City Cost for roadway reconstruction would be $86,200.00. Assessment rate is $38.00 per front foot for City Cost shown. i.) Glen St. from Washington Ave. to 2nd Ave. S.W. and 1st Ave. S.W. from Franklin St. to Glen St., including water main replacement on Glen St. from Washington Ave. to 1st Ave. S.W. Water main replacement assumed to be City Cost; service . replacement to be assessed. Rate to equally allocate roadway cost between assessable frontage and non - assessable frontage is $79.00 per front foot, in which case City Cost for roadway reconstruction would be t705,600.00. Assessment rate is $38.00 per front $ 0 123,800.00 171,900.00 106,500.00 $ 113,600.00 $ 148,100.00- 1988 Improvement Project Report November 19, 1987 Page 4 foot for City Cost shown, which includes no assessment to the school district frontage on the west side of Glen Street because that distance is the long dimension of the parcel. If the Council chooses to assess the long school frontage less 1501 abutting Washington Avenue, and also, 2nd Avenue S.W., the City Cost would be $131,300.009 assuming an assessment rate of $38.00 per front foot. J.) 3rd Ave. N.W. from Main St. to T.H. 7, roadway $ 390,400.00 $ 240,730.00 reconstruction. City Cost was determined using an assessment rate of $45.00 per front foot for 3,326 feet of frontage. City Cost is eligible for Municipal State Aid Funds. Dakota Rail intends to set a dining train on their tracks on the north side of 3rd Avenue N.W. between Main Street and Glen Street. They will likely be requesting angle parking in the street. The assessable frontage that was determined does not include any frontage of railroad right -of -way. Storm Sewer to serve areas abutting 3rd Ave. N.W. and $ 4279700.00 $ 64,155.00 North therefrom,,which is eligible for State Aid (Deferred $138,700.00) Funding and possible MN /DOT Funding through a . cooperative agreement. It is assumed that 15x9 which is $64,155.00, of the cost can be funded by MSA and MN /DOT cooperative agreement. Assessment rates are then estimated to be $0.033 per square foot for trunk storm sewer, and $0.164 per square foot for trunk and lateral storm sewer to achieve zero City Cost. See accompanying map for approximate assessment areas. It is noteworthy that parcels abutting 3rd Avenue N.W. were assessed $0.065 per square foot for a storm sewer - project in 1975. Other properties in the drainage area = were not reviewed for previous assessments. There presently are deferred assessments on parcels abutting 3rd Avenue N.W. from 1968 for sanitary sewer and water - main that could be activated. k.) Frontage Road South Side of T.H. 7 from School Road $ 108,900.00 $ 86,300.00 to approximately 900 feet West of School Road, reconstruction of the frontage road, and providing a connection to T.H. 7 about 900 feet West of School Road as requested by Super America. MN /DOT approval must be obtained for roadway connection to T.H. 7. City Cost shown is based on estimated assessable ,frontage as determined from present and possible future platting, and an assessment rate of approximately $225.00 per front foot. Sub -Total $ 2,371,900.00 $ 1,555,185.00*; Total Parts 1 & 2 $ 2,590,000.00 $ 1,595,185.00 1988 Improvement Project Report November 19, 1987 Page 5 *; $150,000.00 is anticipated County participation. $479,885.00 is State Aid eligible. $138,700.00 is Deferred Assessment. 3. Sanitary Sewer, Water Main, Storm Sewer, Grading and Aggregate Base See Map Exhibit "D" a.) Westwood Road in Sunset Ridge Addition, as requested $ 43,900.00 $ 0.00 by the Subdivider. b.) Carolina Ave. and Arizona St. in Helland's 8th Add. $ 79,300.00 $ 0.00 c.) Darrell Drive, Loretta Lane, McDonald Drive, Park $ 165,900.00 $ 0.00 Island Drive and Honey Tree Road in the 5th Addition to Lakewood Terrace, as requested by the Subdivider. d.) Keith St. and Sunset St. South of Chicago Ave. and $ 2299400.00 Cleveland Ave. and Cheyenne St. in Plaza Heights Add., as requested by the Subdivider. e.) Texas Ave. from California St. to the East Terminus $ 50,000.00 of Texas Ave. in Twin Oaks Addition, as requested by the Subdivider. ($ 63,200.00) (Deferred) ($ 25,000.00) (Deferred) . f.) Colorado St. from 7th Ave. N.W. to 8th Ave. N.W. The 68,100.00 $ 0.00 - Subdivider has requested that the City delay ordering these improvements to a future year. Sub -Total $ 636,600.00 $ 88,200.00* *' Total Parts 1, 2 & 3 $ 3,226,600.00 $ 1,683,385.00 e;* Deferred Assessment. 4. Miscellaneous See Map Exhibit "E" a.) Grading, storm sewer and aggregate base on Hilltop Drive from Michigan St. to Paul's Road. b.) Water main loop on the south side of T.H. 7 from Michigan Ave. to High St., per 10 Year Improvement Program, to provide for fire protection and water service on the south side of T.H. 7. $ 41,500.00 {$ 41,500.00)- (Deferred) $ 67,100.00 $ 33,550.007 (+ $4,900 Deferred) c.) Sanitary sewer and water main on Luedtke Lane, as $ 58,600.00 $ 0.00 requested by an abutting property owner. A perpetual easement is required. No deferred assessments will be lev'.ed if a perpetual easement can be obtained to allow a project route directly west to California St. Rate per foot would be about $46.00. d.i Sanitary sewer and water main reconstruction on Main $ 236,700.00 $ 199,300.00 1988 Improvement Project Report November 199 1987 Page 6 St. So. from 4th Ave. S. to Oakland Ave. in conjunction with MN /DOT T.H. 15 Project. Sanitary sewer is deteriorated and in need of replacement; water main should be increased in size from 6" to 12 ". Assumed to assess only sower and water services and appurtenances. e.) Sanitary sewer replacement or rehabilitation around $ 70,000.00 $ 70,000.00 Hercules site, due to deteriorated river bank sewer that has high rates of infiltration. Lining the sewer may be feasible at an estimated cost of $55,000. f.) Storm sewer in the area of Lake St. from the Crow $ 169,300.00 ($ 25,400.00) River to Roberts Road, per correspondence from Goebel (MSA) Fixture. An outfall easement is needed. Estimated cost includes street paving only as required to restore roadway areas disturbed by storm sewer construction. State Aid Funds could be used to defray about 15% of the cost, in which case the assessment rate would be $0.145 kper square foot. Otherwise, the rate would be $0.17 per square foot and a typical assessment would be $1,700.00 per residential lot. g.) Storm sewer and bituminous surfacing of the parking $ 20,000.00 $ 20,000.00 • lot on the east side of Franklin Ave. North of City Hall, as requested in the accompanying Petition. Parking lot assessment Statute 459 required a minimum of 50% assessment. That statute was repealed,in 1987 and to date no new information has been obtained. - Sub -Total $ 643,200.00 $ 3699250.00a*i **** $46,400.00 is Deferred Assessment. $25,400.00 is State Aid eligible. GRAND TOTAL--------- - - - - -- $ 398899800.00 $ 2,052,635.00 Of the grand total estimate City Cost, $538,985.00 is State Aid eligible; $150,000.00 is anticipated County funding; and $275,950.00 is Deferred Assessment. The net City Cost for all projects would then be $1,087,700.00. The City's current balance in the State Aid Fund is $496,988.00, and our anticipated 1988 allotment is $199,667.00, for a total 1988 Construction Fund Balance of $696,655.00. Sidewalks in the City have been inspected, but results have not been tabulated for a determination of replacement cost. Direction from the Council is requested as to which projects should be pursued. � LL, iii ✓� uv +t l ugen Anderson EA /pv Director of Engineering attachments • • CITY OF HUTCHINSON, MINNESOTA IMPR0VEMENT PROJECTS 1978 - 1986 HISTORY OF SPECIAL ASSESSMENTS AMOUNT TOTAL PROJECT COST BONDS OF OF ISSUE PROJECT COST ASSESSED DEFERRED ASSESSED LESS ASSESSE 1986 $ $ 19346,907 $ 639,207 $ 219631 $ 660,838 $ 686,06 1,075,000 1985 $ 1,370,000 $ 1,359,819 $ 565,685 $ 16,598 $ 5829283 $ 777,5? 1984 $ 1,050,000 $ 1,277,223 $ 623,416 $ 58,059 $ 681,475 $ 595,74 1983 $ 950,000 $ 809,766 $ 285,772 $ 170,725 $ 4569497 $ 353,2E 1982 $ 490,000 $ 472,875 $ 256,909 $ 12,908 $ 269,817 $ 203,05 1981 $ 1,370,000 $ 1,088,264 $ 712,407 $ 78,345 $ 790,752 $ 297951 1980 $ 900,000 $ 730,457 $ 447,915 $ 1979634 $ 645,549 $ 84,9C 1979 $ 1,050,000 $ 906,592 $ 795,709 $ 128,423 $ 924,132 $ 1978 $ 1,210,000 $ 1,143,528 $ 429,134 $ 0 $ 429,134 $ 714,39 • • i 'mO 0 c�r►r wc. u.c r � !1` O ✓ — y = Meow ' u a r� J LS ■ J r _ �- _ �._. N i �\ \� LA A muwdo `Y t 1 --� %I _ HuTCH NSON .a 9 ' .yrasY �uut_ cart .n e GD r-- ULM ..,t. ♦.a _ _._ LAM at— r 7 won- ❑Ll11 r --- I r-7 y i - -- .mot_ - -. — — uL-AS- I — ^, . w r •sue 1 S°t H •Oq • ' .w w (612)"7.6161 D CITY OF HUTCHINSON 37 WASHINGTON AVENUE WEST HUTCHNSON. MINN. 55350 M E M O DATE; August 24, 1987 TO: Park Board Membsr8 rM. Director of Engineering RE: Surfacing Les Rouba Parkway At the direction of several members of the City Council and the Director of Parks and Recreation, this department has studied Les Rouba Parkway for the purpose of determining a cost to surface the roadway. The dust and rough uneven roadway surface results in maintenance problems and an environment that is contrary to the predominantly park and recreational useage. The roadway was also studied to determine potential geometric and safety 4 improvements. Roadway improvements The unpaved portion of Les Mouba Parkway from the inplace pavement of Mater Street to the frontage Road along T.H. 7 is one mile in length. In May, 1987, this department obtained twelve soil borings along the roadway. Information obtained from the borings is used in designing pavement structure, thicknesses and to estimate earthwork that may be required for removing unstable or undesirable soil in the roadway. A preliminary proposed typical section is attached. Bituminous pavement 2 -3/4" in thickness with 12" of gravel base beneath should be sufficient pavement structure for the soils encountered. Geotextile fabric would also be used beneath the gravel base to alleviate the influence of unstable soils. The recommended pavement width is 24 feet. Such a width will not encourage high speeds, as would be the tendancy with wider pavements, but will allow for twc wav traffic and the occasional passage of a recreational vehicle cr trailer an two wart traffic. A cavemen= narrow=_. tsar. 24 feet is not recommended because such a roadway would pzcbel., sustain. damage to the edge _`.e cavement due _c traffic consistently dr' °inc on. or near the edge. ceE ._dt.. woad "- con._ :rude= -.. bct.. sides cf _h- a:enent .:_lc'• ve.'._ ^elms t0 ya Eel ;:ark as cc, • e. eed_ -. ..____fe san:_aar is Lr=sE-.t`, —di-z '.]race? ._ 2._g`. ^c a•.^ c.,__ hic: = reeds, �xYIICt� ±C' *"facing Les XDubm Parkwy - August 24, 1997 Page 2 On the northwesterly and of Les Kouba Parkway, the paved roadway would be widened to 3E feet with curb on both sides. The pavement would also be thicker to accommodate commercial traffic. Drainage To the maximum extent feasible, drainage will be provided overland. Installation of storm sewers would increase the project cost, and our preliminary study shows that the majority of drainage on the project can be accommodated on the surface, thereby negating the need for storm sewer. The notable exception is at the nortbwast corner of the wildlife sanctuary where a culvert must be installed across the roadway that will drain into the sanctuary ponds. This department will pursue the acquisition of an easement from the sanctuary that will permit drainage onto the sanctuary property. Geometric improvements we reco®nend that the following improvements be made in conjunction with the surfacing project. The improvements are sham schematically on the attached drawing. 1. Access to the intersection of 3rd Avenue N.N. and Glen Street via Les xouba Parkway should be closed. The intersection provides for east -west and north -south traffic flan and Les ltouba parkway being a second leg on the west side of the intersection and at an acute angle creates a safety problem. Closing access to the intersection will tend to reduce speeds on Les Kouba parkway vest of the intersection where people gather to watch wildlife and the scenic river area. 2. The east access to Les Kouba Parkwav could be constructed across the railroad tracks at either James Street or at Lind Street. The latter presently has a vehicular crossing at the ttacks but it is narrow and in poor condition, and it should be replaced. Whichever crossing is chosen, the portion of Les Kouba Parkway between the crossing and Glen Street would serve as a parking area. This area is - presently a popular site for people to park and enjoy the natural setting. 3. At the intersection of Les Kouba Parkway and the Frontage Road alona T.H. 7, Les Kouba Parkway would be realigned so as to meet the existing roadway openine onto T.H. 7. To accomclis`: the realignment, the roadwav would be _ved westerly onto the Hutchineor. ^-c -o, prorert_'. A riaht- cf-way easer*nt be needed te =o-cr • oncrt:. .. - ?^,^E -- r:. _o .Lc - nteZsE7t:_n ar. c =f -,lo_ and. wit- e .��E ICLo vE'_',._a_ n_Sere"s .a: are tcssih:e, safer• is seri---jsly con rorlsed. A rca: `+Ed w___ I-'_...c._.._ _.._ and tLE t` -•,---- _ -..- was c }ta�'.e= -=r c-.� w <__< L =ir.= nec�. := zica'_ -ra "c= ---r --- -_ M Ex�KlCI', r� surfacing Les Rvubs Parkway August 24, 1997 Page 3 highest traffic volume was 400 vehicles per day. Althouah no actual observation was done regardinc tae percentage of traff ;.c that is through traffic with no oarticular interest in the park or the wildlife area, it is safe to assume that a certain percentage of the traffic stream fits such a description. With the park and recreational type of setting, through traffic should be discouraged. The City Council has expressed concern for the deteriorated condition of 3rd Avenue N.W. from Main Street to the Hutch Computer site, and bas directed this department to propose a street reconstruction project for 1988. However, such a project would be the subject of discussions at two public hearings, after which the Council would take official action, either ordering construction of improvements or deleting the project. Also, the transportation plan calls for the ultimate connection of 3rd Avenue N.W. at Hutch Coapyter to the T.H. 7 Frontage Road where it presently terminates east of the victories Inn. Right -of -way easements are needed for the Frontage Road extension, and the needed right -of -ray is presently the sajor problem in realizing a project for the connection. When the 3rd Avenue N.W. - T.P. 7 Frontage Road is ultimately completed, a direct route will be provided for through traffic rather than the circuitous parkway. Through trips will be greatly reduced, if not eliminated. Estimated Project Cost The estimated total construction cost for the project is $266,700. With the usual addition of 22 percent for City Expense, the total project cost is $327,800. To reduce the financial impact, the project could be scheduled for more than one year. Two alternatives follow. Alternative 1: In 1988, construct aggregate base, curb and gutter and bituminous surfacing frgm Luce Line Trail to the T.H. 7 Frontage toad, and excavate and backfill unstable areas complete with geotextile fabric and aggregate base. Estimated construction cost is $122,100; estimated total cost is $149,000. In 1989, complete excavation, placing geotextile fabric, aggregate base, and bituminous sui_fac:nc. Estimated construction is $146,690; estimated total cost is 5178,800. A1_ernative ?: -- -'�" =`-_- .._: -- -_ - .e _..tersectc:.. __ .ES 'F�__ = e_..•.:a-r an _ -E -.r - r.taa -�e 3 EX%,bt- unu lurfacinq Lee Zoubs *arkweY August 24, 1987 Page a • Whatever schedule of constrjctior is chosen, we recommend that areas of unstable soils, which total approximately- 150. , feet in lencth, be excavated and backfilled the first year. By so doxnc, sufficient time will elapse, even if it is only one winter, to enable an analysis as to whether the planned subgrade treatment is adequate. sumary The one mile length of Les Rouba Parkway is currently a maintenance problem and dust resulting from the existing gravel surface is not conducive to promoting a,clean environment and to the useage of adjacent park and recreational areas. The plan contained herein will provide a safe roadway at an economical cost, based on conditions at the site. When a decision is made on a plan of action, a recommendation will be presented to the City Council. if additional information is needed or if there are suggestions, please call me. 11 EA/pv 0 Eugene ersan Director of Engineering 1 'n" �h 1 � i•i IMF �•.� w • \� I' �J`.�C ��1 f •I%pI� r , / M . I � __� �.w r � .I • it k LEGEND CLOSE LES KOUBA PARKWAY. CONSTRUCT ROADWAY CONNECTION TO LES KOUBA PARKWAY (RAILROAD CROSSING). CONSTRUCT ALTERNATIVE ROADWAY CONNECTION (RAILROAD CROSSING•). REALIGN INTERSECTION WITH FRONTAGE ROAD. ULTIMATE cnNNECTION OF 3RD AVENUE N.W. WITH T.B. 7 FRONTAGE ROPD. v Q X w (612) "7 -6151 CITY OF HUTCHINSON • 37 WASHINGTON AVENUE WEST HUTCHINSON, MINN 55350 July 10th, 1987 Mr. Rick xjonaas McLeod County Highway Engineer McLeod County Courthouse Glencoe, Mi 55336 RE: County State Aid Highway coo. 7 2nd Ave. S. w., Hutchinson, M+t pear Mr. Xjonaas: ego' As we discussed previously. the City of Hutchinson may be reconstructing 2nd Avenue S.w. from Franklin Street to Dale Street, a distance of about 2,840 feet in 1988. The entire project would require approval of the City Council before plans would be prepared for a contract. Meanwhile,itis safe to asI me aware that the City Council will request Canty Part P i t Prof e of the County's policy for participation in the center 24 feet of the roadway construction. That construction cost is estimated to be $130,000. In addition, storm sewer reconstruction may be required at an estimated construction cost of nty =50,000. The State Aid Office will likely determine the Perco Cage of Counonld participation in the storm sewer, but for budgeting purpo be adequate. Also, State Aid does allow 10% for preliminary engineering and st for construction engineering, for which we would likewise request County participation. Please take the appropriate steps to assure that funds will be available for the County's share, should this project be authorized to proceed. if you have any questions, or if additional information is needed, please call me at 587 -5151. Best personal regards, CITY OF HUfCHINSON i���/�^,�.�ruvv 1 uge Anderson Director of Eneireer,ng i i J t 1 ,1 1 0 i 0 IN Ile. ; �y �r� for -Tr-OK ono two- �ISS�SQbIt tiY,eq; - (�ssafo�e. flrea,.-%°r � � %'• i part + � , . I►�u.�K. �Ir.�y �;r�'+ 1 1 1 � 1 1 h 1 ,1 1 0 i 0 IN Ile. ; �y �r� for -Tr-OK ono two- �ISS�SQbIt tiY,eq; - (�ssafo�e. flrea,.-%°r � � %'• i part + � , . I►�u.�K. �Ir.�y �;r�'+ c r •.t i J C•O1 i •.�l• lMa /� '' • ��1 7 L / W /rn �_ 7 ■_ C ._ M _• 77 O • ML laumbmw -As EL ...... . ...... ......................... ----------- 7-. I N D LJ EIT-7 I -AL-1 ------------- L a r� i luu` s� EJ1_J_ xh� i 61 • .JM 0 0 r 12) Sd7 -SISf TY Of HUTCH/NSON 37 WASHINGTON AVENUE WEST HUTCHINSON, MINN. 55350 MEMORANDUM DATE: August 5, 1987 T0: Eugene Anderson, Director of LuLineerinL _ — _ _ — — _ --- -- - - - - -- FROM: Gary D. Plotz, City Administrator— 44Q _ — — — — _ — _ — SUBJECT: Storm Sewer _ Goebel Fixture Company _ _ _ _ _ _ _ _ _ _ _ Please review my recent correspondence to Geobel Fixture plus the letter and all attachments of their August 3 correspondence. Please respond as soon as practically possible and keep me informed. /ms cc: Sandv DeVries Pa*f 4. P. i Jebel fixture Company uua8ty Store Fixtures i tiYood Products S48 OaN St. HueeMnson, Minnesota S53!f0 tit i•91149 August 6, 1984 Hutchinson City Council Hutchinson, Mi. 55350 Dear Council Members: The purpose of this letter is to urge the Council to recommend that steps be taken to remedy a faulty storm sewer situation at Gioebel Fixtures. At the time we built our 25.000 square foot addition in 1978 -79, we were informed by Juul Contracting that the storm sewer in Lake Street might not be deep enough to adequately drain our premises. Juul installed two 10" connections to the Lake Street storm as best as they could under the circumstances. Since that time, our outside loading dock fills up with water with any substantial rainfall. (This dock at Lake Street should not be confused with the new indoor docks constructed this past winter.) The problem is normally not so bad insofar as damage to property as long as a truck is not sitting in the below-grade loading ramp. If a truck happens to be in the ramp during a dowtpoor, water can rise over the hood of the cab; since we frequently leave trucks parked in the ramp, this is likely to happen at any time. This past June, however, we had a torrential rain which totally filled up the ramp. The water then literally gushed up through our dock leveler - - board and flooded the entire back end of our building. Because of some quick- thinking and acting people we managed to 'sandbag" the inrushing water to keep the flooding to a minimum. The net result was water in a fourth of our plant (up to 2" deep). Fortunately we had people in the building when the water first started coning in who got anything that could be damaged by water up off the floor. Since our main materials are wood. you can see our concern. The enclosed pnotos illustrate this point. We do not believe that there is anything we can do ourselves to eliminate this problem; the problem is w: ;h tte storm sewer in Lake Street. It is cur understanding that +Then the huge story sewer project on .ne sc4thwest corner of town was installed sore 15 years act, the existing L? 'e Street sewer was conned eo as .s. This was dcre eve❑ tttouah pretle ^s water In a loo area at the SCU.'. Vlh" 0` LakE Street ,at•CSS RCterts n..:; alrea�.Y ex s.ec. Tne new <_t ,.rm sewer protect �Vi.j nct solve tre ETC lE'. ir:en we t'..lt our 1779 !C_iition we were Cie_Se ^_ witi the L ;r_Die(ms a - 2 - • in talking with city officials and Juul Construction we also understood that it was always intended to correct the problem some - time. We feel that the time is now - before Lake Street and Roberts Road undergo resurfacing. What will it take to get this project off the back- burner? We would appreciate an answer as quickly as possible and will give the City any assistance necessary to get the project underway. Thank you. RJG /mc Encl. Sincerely. GDEBEL FIXTURE COMPANY Richard J. Goebel Manufacturing Engineer p0.r+ 44, (612) 587.5151 • CITY Of HUTCHINSON 37 WASHINGTON AVENUE WEST HUTCHINSON, MINN. 55350 August 21. 1984 Mr. Virgil Goebel Mr. Richard Goebel Goebel Fixture Company 528 Dale Street Hutchinson, MN 55350 Re: Storm Sealer Dear Richard and Virgil: The City Council received your correspondence of August 6, and considered it at the regular Council meeting of August 14. The Council has directed the City Engineer, Marlow Priebe, to study alternative solutions and costs for addressing the storm sever problem in your area, including along Lake Street and down Roberts Road. The Council has scheduled this item and report from the Engineer to be on the August 28th City-Council Agenda. You are welcome to attend. The meeting starts'at 7 :30 p.m. in the Council Chambers. Sincerely, CITY OF HUTCHINSON Cary Plotz City Administrator ccpy: Mayor and Council Marlow Priebe �ar- 4, t. 0 E 0 ti AVG 1587 N REEVED = ..... ,• ( .. C: w'. ^., a :ri •r0:) ^CR :d. � :. \ :.. /i+ _ .. I{ �HN: P "WU.. i'.... .. na ., ifan au:,w.. : /(rnr•n(� _.: e., •!.r. _..._ / L1 > >!: .`• ".. "+ August 3, 1987 Mr. Gary Plotz City of Hutchinson 37 Washington Ave. W Hutchinson, MN 55350 Dear Gary, REF: Enclosed Copies of Previous Correspondence Since August of 1984, nothing has really changed in the storm sewer situation here at the plant. Fortunately we have not had any 9" rainfalls like Bloomington had, but again this scorning we had some flooding in our building (for the third time this year). Some things have happened in regard to this matter: a. The project was assigned to Marlow Priebe for study. b. I went over the situation with Juul Construction. c. The 16" storm sewer section in Roberts Road was replaced from the St. Anastasia parking lot to Larson Street with new 20". (The 16" was nearly plugged by tree roots). d. We have decided to better equip ourselves with a permanent "flood cart" that has all the necessary equipment to do battle with incoming water. (Which only protects us during occupied bours.) None of these steps have yet solved the problem. My suggestion at this time is to reassign the new City Engineer to the project. I. talking to Juul Construction, they suggested that during a heavy rain to pull: a manhole cover in Lake Street to see if it is full. I did this mvself a while back during a moderate rain storm and found the storm sewer near;: a . k? believe it is only a 14" and we alone have two 10" going :n, -, i_.! r._.. t' ^z: first, t e line should be inspected -,c make s•_Ie it is not Els. - .:g _£e.', wit'-. _ree I'cts at ..a::e -_:eE_ an P—erts C, 1; is 'E:., _ See _'.E zn: alter. ^.a__ve being„ r<_^iat£ _.. ^.E line fro^ Our plant .r.e nt. __ �_ _-:E __. An.astas_a :.a-.._n� P0.1' l `t'. �- T (612) 587 -5151 CITY G:� HUTCH/NSON 37 WASHINGTON AVENUE WEST ,.' HUTCHlNSCN MlNN' 55350 August 5, 1987 Mr. Dick Goebel Manufacturing Engineer Goebel Fixture Company 528 Dale Street Hutchinson, MN 55350 SUBJECT: Storm Sewer Dear Mr. Goebel: The City is in receipt of your correspondence of August 3, 1987. Thank • you for the history and update of the problems your firm is experiencing with storm sewer. As per your request. I have assigned the new city engineer, Eugene Ander- son, to review the situation and also contact you sbortly. I have also requested him to coordinate an inspection of the manhole at Lake Street with Randy DeVries, Director of Wastewater and Water. Sincerely, CITY OF HUTCHINSON D. tz Adminis -ra -or 1 �:- �� �iJ QC�rtC :1:.�C � ��1, 1. �•� iii €. • R, :nd% 0\ %.F+ � . . 0 0 i- j1 Me, the undersigned property owners, respectfully petition the Hutchinson City Council to include paTiag of tie Wkiaq lot north of and adjacent to City mall in its 1940 iEP644MIN"t projects list. He further request that paving be done witbwet 4"Itional assessment in consideration of current assessments against our properties for parking. Li... , . IMC 1 so d& .1 w �-4L�Afflp Tam, I � �Qi� T•q J . E HUTCHINSON COMMUNITY DEVELOPMENT CORPORATION FINANCE COMMITTEE WEDNESDAY, NOV. 25, 1987 CHAMBER OFFICE MINUTES Members Present: DuWayne Peterson Chad Piehl Glenn Matejke Gary Plotz Mark Erickson Pat Stall man Others Present: . John Bernhagen, HDCD Exec. Dir. Ron McGraw Don Winkler Ken Merrill - City Finance Dir. Gene Anderson George Field Meeting opened at 9:00 AM by Chairman DuWayne Peterson II. Chair called on Ron McGraw to explain a 'buy -out" proposal of Burlington Northern Railroad by Dakota Rail, Inc.' He explained to the committee the need for local match funding required by the state will match dollars to "buy -out" the railroad. In order to get the most favorable price from the Burlington Railroad a financial package acceptable to all parties must be finalized by Dec. 31, 1987. McGraw emphasized to those present that any suggestion of financial commitment on the part of local parties should be communicated to him as soon possible. III. The chairman then brought up the item of financial proposals concerning the Main Street revitilization project. City engineer, Gene Anderson, explained the scope of one part of the project, the installing of new water entrances to all lots and sprinkling of all basements in the targeted area. (4th Ave. So. to the river and Hassen St. to Franklin St.) see enclosure *1 Ken Merrill, City Finance Director, briefed the group on the status of various city funds. He indicated the Revolving Loan Fund would have available in 1988 the amount of $500,000 as set forth in the Revolving Loan Fund document. He also indicated the Sewer and Water Fund was a possible source of funds. Consideration needs to be given as to future commitments from the fund previously established based on sources and uses of the monies in the fund. Bernhagen reviewed with the committee the general scope of the revitilization project. He indicated that in order for commercial and apartment revitilization to take place, a favorable funding package must be implemented in order to not strain already strapped budgets on the part of the business and building owner. Based on interest to date of 42 building owners there could be upwards of $260,000 of need from the Revolving Loan Fund and $350,000 from the Grant. In addition, $100,000 from the Revolving Loan Fund has been previousl y committed by the City Council for energy need. Those dollars will also be used in the overall uptown revitilization. V 4 The following is a possible funding proposal under a Small Cities Development Program Grant: Total available under the grant $1,400,000 Grant 1. Water entrances & sprinkling basements $920,000 $ 500,000 11. Commercial & Apartment Rehab $650,000 385,000 III. Hotel Rehab to LMI Apartments & Commercial Rehab $800,000 400,000 $2,359,000 Administration 50,000 Project Director (2 years) 65,000 $1,400,000 The committee discussed the need to continue the Revolving Loan Fund as 'Revolving" rather than depleting the fund by grants. They also considered certain parts of the water project that would normally come directly from the water fund with no future assessments ($140,000). Review of dollars needed for the commercial, apartment and hotel portions of the grant was also reviewed. Members were informed that of the commerical, apartment and hotel grant dollars in a period of 20 years over $200,000 will be paid into the Revolving Loan Fund. The following was agreed to by all present as a recommendation to the City Council on the use of various city funds for the Uptown Revitilization Program: Water entrances & sprinkling $920,000 Grant Revolving Loan Fund (not to exceed $200,000) 21% $ 193,200 SCDP Grant 55% 506,000 City Water Fund 24% 220,800 100% $ 920,050 The state has indicated that a percentage of the grant can be used toward payment of the water entrances and sprinkling of those buildings out of compliance of the code only. Other funding needs to be found for all other buildings in order to treat all owners on an equal basis to have access to water for regular consumption and sprinkling. Pat Stall man of Citizens Bank, expressed a strong need to erase the dark cloud over all the property in the uptown area because of fire code /sprinkling problem. There being no further business the meeting adjourned at 11:00 A.M. Appointed Sec. for minutes John Bernr•. 2n,d ; h s r• - V-St ' Brl'dye fa " pZr,d AU. A/o IS r AV, No wdSti ;ry, 71-o /ST Av• So - IS t A ✓. Co. off„ d Av So 3rd A✓ So dhd Au• Mo.. , 716 (st A ✓• 4/0. . LJdS�l:t,q'f4n Ao/ Av. 71-o /ST Av• So - fo end A v. So , 'fo 3rd Av, so fo V{ 'h .4 So. S a h +o-r}r Sew ev- opt M at s S-f . - Q! �/ Street S2/ pOd, /7a� 900. /3a/ 000. .?7/ /8,/00. l So J z 0 0 Al ve.r C bW 9 u o us S tde. '5+ro.� - Es t. W n and AV �U4, E(dSSd4w110 -PP dmKIin Z /ST ,U, v /JW Ail. No. �re,•�rl:vr -/o Ma iri f Av. AVo- MdiH{� A0 /.(d ssd" /S' a.yd ,$ %1 i N q'�O+�t �i 1/ •F'Yu.y�Ki. IZ f 'D Wd S r N fV fQY / Ati. J /11d i N 1-1-L fo SS4, /S r- A • so C r � ,. I Ad �ncl Av. So. Mdin +0 fYd Ssd,.M �hd '4u. So Ma ;r to �rdv,Ki ;n 3rd AU. Sn /�ldi n. -f'o NdSSd,r ESfiW..d -fie EwtwtnT� lylativk S+. �7.5'b, Soo. COi�or of cer ✓t�Z�2My 322 -, 800. Y sr J. w..d.l.K . , 00, /DO, / 4/7/ 3o o, sa, o o, #547. ► oo. X541, 100, # a5, 000. -116 1 200. 15-7, 000, I \ \ I r w If 0d.41.d.1t aT► log. sa/ 00 0, /"5/7/.34 0, sa, ax-00. 13al 00 0 , 37/ (00a, 1,B. /00. Boo, o0 C, /6/ Boo 191300 �yo/ moo y Boo -3/4/00 �1B/ yoo CO /00 46 / 3oe, 'ta51 o e 0. -111,x. . 3 -)o, If Cow n I i 7' :►ao>>; ^, 1, t-or in.si-a u� oP W.2 10, 4 f 5=�i An m �ol ^Y ra_•r. �7.5'b, Soo. COi�or of cer ✓t�Z�2My 322 -, 800. Y sr J. w..d.l.K . , 00, /DO, / 4/7/ 3o o, sa, o o, #547. ► oo. X541, 100, # a5, 000. -116 1 200. 15-7, 000, I \ \ I r w If 0d.41.d.1t aT► log. sa/ 00 0, /"5/7/.34 0, sa, ax-00. 13al 00 0 , 37/ (00a, 1,B. /00. Boo, o0 C, /6/ Boo 191300 �yo/ moo y Boo -3/4/00 �1B/ yoo CO /00 46 / 3oe, 'ta51 o e 0. -111,x. . 3 -)o, If Cow n I i 7' :►ao>>; ^, 1, t-or in.si-a u� oP W.2 10, 4 f 5=�i +° J May 24, 1985 If work is done under one contract, it could be possible to get a low cost of $177,761 and a high cost of'$266,641. e F. ie1rY d/ Fire Marshal o� SPRINKLER SYSTEMS ESTIMATED SQUARE FOOTAGE AND HIGH /IOW COST FIGURES BLOCK SQUARE FOOTAGE LOW COST HIGH COST 8 44,350 $ 87,800 $ 91,075 12 35,328 45,629 68,442 13 24,094 36,141 51,961 27 6,351 9,526 14,289 28 24,552 24,552 36,828 42 2,560 3,840 5,760 49 23,834 28,975 43,462 50 16,692 25,124 37,686 177,761 $ 261,587 $ 349,503 7 If work is done under one contract, it could be possible to get a low cost of $177,761 and a high cost of'$266,641. e F. ie1rY d/ Fire Marshal o� �, r7V rrr'N,nl�lnf 27 L I Asq 1 t.16 7D4 e I �► - MAI SUBJECT etgF- PQa rr04 — J is .�/ilii rrt^ ' ��2�hixGc -K S - • • n,n - Arr' r7Fn,P6E 15IF A QF <Ar70,A�C, /)rl2 n15CUSC // r 6G i,lF GD }ST aF / 15M L W6 'AimmArl� !nr PA5r=MI=AjZ5 1 1 1IAuF C ;m I l;,r rT)1 we r-nuot -m w ? GurDF U.yeS r -t A P EA s 1. SO 2!5- Sp FT 4, Otjn Sri Fr AQEgs �l. an 1. soPFe S& Fr sPEEO -wEyo DAVID B. ARNOLD CHARLES R. CA MICHAEL MICHAEL B. L.BABON GARY D. MCDOWELL PAYE KNOWLES STEVEN A. ANDERSON O. HARRY ANDERSON STEVEN S. HOGE CHARLES L. NAIL, JR. DANIEL J. BERENS LACRA E. PRETLAND DAVID A. BRUEGGEMANN JOSEPH M. PAIEMENT November 24, 1987 AB_ \"oLD & MCDo -%ELL ATTOR\,F:ys AT LASc 5881 CEDAR LAKE ROAD MINNEAPOLIS, MINNESOTA 55418 (812) 545-9000 MN TOLL FREE 800- 343-4545 CABLE MCL.AW MINNEAPOLIS TELECOPI E H : 19121 646 -1903 Mr. Gary D. Plotz Hutchinson City Administrator Hutchinson City Hall 37 Washington Avenue West Hutchinson, MN 55350 RE: Main Street Review Committee 6OI SOUTH FOURTH STREET PRINCETON, MINNESOTA 66371 (9191 369. 2914 914 TENTH STREET EAST GLENCOE, MINNESOTA 66330 16121904 -9U1 101 PARE PLACE HUTCHINSON. MINNESOTA 66360 19121 699 -7396 �s i +rV 1987 a', A:ErEIVED BY Dear Gary: I'm enclosing herewith a copy of a proposed resolution governing the implementation of the committee. I would like to offer the following comments with regard to the proposed committee. First, I believe the resolution should specify that the committee's responsibilities are limited to review and that the committee is acting in an advisory capacity only. It is my understanding that at this time the city is not interested in enacting mandatory rules and regulations on this subject. If I am not correct in this regard, please advise. Second, I have avoided specifying in detail the manner in which the committee will operate since I'm not certain those decisions have been made yet. I assume the Mayor can make the appointments with the appropriate recommendations of downtown merchants, city offi- cials and so forth. Third, I am still waiting to hear from Duluth and I have contacted them and asked them to send me as soon as possible the necessary documents. Gary D. Plotz November 24, 1987 Page 2 If you have any questions or problems in connection with the pro- posed resolution, you should certainly contact me. Thank you. Very truly s, ARNOLD & M��LL r' G. Barry Anderson GBA /lh Enc. cc: James G. Marka John Bernhagen • 0 RESOLUTION Publication Number WHEREAS, the Community of Hutchinson has a need and desire to rehabilitate the central business district, and, WHEREAS, the appearance and design of downtown buildings is important to any rehabilitation effort in the Community of Hutchinson, and, WHEREAS,'a committee with authority to offer non - binding recom- mendations regarding design and appearance would be helpful in pro- viding uniformity and establishing a unified theme throughout the central business district of the City of Hutchinson; NOW THEREFORE BE IT RESOLVED that the City of Hutchinson does hereby authorize the creation of the main street design review com- mittee to be composed of representatives of merchants, building owners and municipal building officials for the purpose of reviewing and approving construction and building rehabilitation in the central business district. The committee shall have the authority to review the proposed rehabilitation and design of buildings located within the central business district but shall act in an advisory capacity only and shall have no authority to alter the plans and specifications. Committee review shall be for the purpose of determining whether or not the proposed improvement is consistent with the overall goals of the City of Hutchinson in the long -term development of the central business district. The committee's geographical responsibilities shall be limited to the area between Fourth Avenue South and the Crow River and between Hassen Street and Franklin Street but in any event shall not include area beyond Tax Increment Districts I and II. Attest: Gary Plotz 0 Paul L. Ackland ja/r ff/- (612) 58 7.5151 CITY OF HUTCHINSON �.i 37 WASHINGTON AVENUE WEST NUTCH/NSON 11i11NN. 55350 MEMORANDUM DATE: November 24, 1987 TO: ✓Mayor and City Council Members FROM: Director of Engineering RE: REPORT ON COPPER WATER SERVICE CORROSION AND EROSION During at least the past ten years the city has experienced a problem with is copper water services leaking due to the pipes becoming thin or porous. Although incidents have occurred throughout the city, the most notable occurrences have been on Main Street at the following locations: - The former North Star Gas Station in 1977 - Post Office at 245 Main St. S. in 1981 - Lang's Wig Shop at 2 Main St. N. in 1985 - Mike's Mobil at 105 Main St. N in 1986 - Gold Coin at 35 Main St. N. in 1987 In judging pipe samples obtained from the most recent leak at Gold Coin, it appears that the city is experiencing a corrosion and /or erosion problem. In a report prepared for the influent (inflow) at the waste treatment plant and of domestic sewage discharge at various points in the city's sewage collection system showed abnormally high concentrations of suspended copper in the sewage. Concentrations were of such magnitude in domestic sewage that, given allowable copper concentrations in the treatment plant effluent (outflow) as established by the Minnesota Pollution Control Agency and the efficiency of the treatment plant in removing suspended copper, no suspended copper can be allowed in the industrial sewage, thus placing a burden on industries to attempt to remove all copper from its effluent. The elevated concentrations of dissolved copper were not present in samples obtained from the treated water at the water treatment plant, and are evidence of the erosion and corrosion of copper water services. r1 Memo - 11/24/87 Sources of Information In an effort to determine causative factors of the apparent erosion/corro- sion problem, various sources of information were consulted. Among them are "Copper For Hot and Cold Portable Water Systems ", a Penton /IPC Reinhold Publica- tion; "Conditions Contributing to Underground Copper Corrosion ", a paper published in the American Water Works Association Journal; "Mitigating Copper Pitting Through Water Treatment ", a paper published in the American Water Works Association Journal; "Mitigation of Copper Tube Cold Water Pitting By Water Treatment ", a paper prepared for the 1984 International Corrosion Forum; and the "Copper Water Service Corrosion Study" prepared for the City by RCM Associated, Inc. Also the problem was discussed with local contractors and personal obser- vations were made at Gold Coin. Potential Factors Causing Erosion /Corrosion Some or all of the following factors may be contributing to the loss of copper in water services. 1. Agressive soils, usually soils high in organic content. This is not a problem on Main Street where sand, gravel, or small amounts of clay are prevalent, which seldom possess the properties associated with corrosion. A high water table, also not present on most of Main Street, is also needed to allow corrosion to occur. 2. Varying types of soil through which a copper service is installed can cause an electrochemical corrosion to occur. However, since in the vast Majority of city projects the soils are similar in a given area, and backfill • operations require uniformity of soils in the pipe zone, the effects of varying soils are all but eliminated. 3. Stray direct current, such as from high voltage direct current transmission systems, welding facilities and cathodic protection systems, can flow in the earth through paths other than those intended. Should stray currents flow onto an underground structure such as a water line, corrosion loss would occur at the point where the direct current leaves the water line and re- enters the earth. Although such corrosion would not result in copper being lost to the water supply, this type of corrosion could have contributed to the problem at Mike's Mobile where the underground fuel tanks have a cathodic protection system. 4. Alternating current action on the corrosion of copper pipe is not yet well understood. Investigators disagree as to whether, and to what extent, corrosion is enhanced in copper pipes by alternating current. But many believe that it is reasonable to assume that the commonly used practice of grounding electrical systems to underground copper water systems can lead to corrosion. Unfortunately such a practice is presently required by the state electrical code. Corrosion by this occurrence would be an the pipe exterior and would not contribute to high copper concentrations in the water. 5. Workmanship and materials used during pipe installation can effect longevity. Residual burrs left on pipe seating surfaces can cause turbulence in the water flow that may erode the pipe. Certain soldering flux compounds can have a corrosive effect on copper. Copper material itself could have manufacturing deficiencies that could cause problems under certain circumstances 2 Memo - 11/24/87 but over all the industr considers copper to be an excellent material due to its immunity to corrosion. 6. The concentration of dissolved carbon dioxide in the water can have a detrimental effect if above a certain threshold. In the case of the city's water supply, dissolved carbon dioxide is two to three times greater than levels considered to exist in nonaggressive waters. Decreasing dissolved carbon dioxide would decrease pitting corrosion on the interior of the pipe. Pit initiation, investigators believe, seems to be connected with intermittent use where the system remains stagnant for several hours, like overnight in a residential situation. This tends to reinforce the findings of the Pace report in which high copper concentrations were found in domestic sewage outflow. Installations where there is a continuous demand for water are less likely to experience pitting corrosion. 7. Water hardness will not usually determine whether a water is corrosive, but if the level of hardness is slightly greater than the level the water can hold some of the mineral hardness will form on the pipe interior. Investigators believe the coating to be beneficial in deterring pitting corrosion and erosion because of the protective barrier it forms. 8. Excessive flow velocity of water within the pipe can result in deterioration of the pipe. Water whose chemistry may not be quite sufficient to cause a problem at a low velocity may create a problem at a higher velocity. The protective scale normally observed in copper pipes exposed to stable water can be eroded away by fast flowing water leaving the underlying copper surface unprotected. The pipe can then literally erode away. • Although erosion and corrosion of copper pipes can be caused by any one or a combination of these factors, and possibly more, the City's problem would seem to be due to inordinately high concentrations of dissolved carbon dioxide and by high flow velocities. Several past repairs, including that at Gold Coin, showed the pipe badly deteriorated in the five or six feet nearest to the water main, while the balance of the water service was in good condition. The portion of the water service near the main is subject to turbulent flows which, when combined with the water chemistry can and have eroded and corroded away the pipe. Grounding of electrical services to effect but sources disagree as to whether so to what degree. The State Electrical grounding causes a problem. water systems could have a detrimental such grounding causes a problem and if Inspector does not believe that Proposed Solutions The concentration of dissolved carbon dioxide should be reduced to make the water less aggressive. One attempted solution was initiated at the water treat- ment plant this summer, that being a better more thorough means of aerating the water prior to it entering the distribution system. In so doing the intent was to release excessive amounts of dissolved carbon dioxide. However improved aera- tion had little if any effect. The addition of caustic chemicals to the water at the treatment plant will result in a reduction of dissolved carbon dioxide. Included in the water department's 1988 budget request was $26,000. for equip- ment to store and to feed caustic into the water. The estimated annual chemical cost at present day cost is $84,000., which translates to about $1.09 per capita per quarter assuming average useage. An alternative solution to the aggressive Memo - 11/24/87 water problem is the addition of phosphates to the water which would neutralize the electrcal nature of the corrosion process. Equipment to store and to feed the chemicals should cost less than ;5,000., and the chemicals themselves about $8,000. per year. The basic difference between the processes is that the first mitigates corrosion at the water treatment plant while the second process acts to minimize corrosion throughout the system. Inbalances in flows and usage throughout the system could make the second alternative less dependable, al- though the estimated annual cost is about one -tenth that of the caustic chemical alternative. A second solution to the problem is to reduce the velocity of flow in the water service to a level that would be unlikely to cause pipe deterioration. One way of so doing is to install larger diameter service pipes. The engineering department began installing 1" diameter water services to homes on construction projects in 1987. Previously the standard service size was 3/4 ". Summary The copper erosion /corrosion that the city is experiencing is a complicated problem. But from all indications, reducing system velocities and altering the chemistry of the water will, if not cure the problem, greatly prolong service life. We will continue to investigate this problem in an effort to determine any other possible causes, and whether other potential solutions could be effected. • EA /bb C! Respectfully submitted, EugeniPAnderson Director of Engineering r 1612) 587.5151 CITY OF HU TCHINSON 37 WASHINGTON AVENUE WEST a MINN 55350 M E M O DATE: November 25, 1987 TO: ,*ayor and City Council FROM: Director of Engineering RE: Downtown Water Distribution Project As was recently presented to the Council by the Executive Director of the Hutchinson Community Development Corporation, in conjunction with the downtown revitalization project, we recommend that water service pipes to all buildings be replaced, due to the corrosion and erosion problems experienced on Main Street in the past ten years. A portion of the project cost could be funded through a Small Cities Development Program Grant and the balance by the Water Fund, assessments and/or the improvement bond. • A preliminary plan and cost estimate has been prepared for installation of new water services to buildings within the project area which is bounded by the river on the north, Fourth Avenue South on the south, the west side of Hassan Street on the east, and the east side of Franklin Street on the west. The goal of the plan is to install sprinkler services to all buildings not presently served thusly and whose basements are larger than 1500 square feet, as required by the Life Safety Code, a portion of which is attached. However, the scope of the plan was enlarged to provide sprinkler service to all buildings and buildable sites in the project area, thereby foregoing the potential need to excavate Main Street in the future to do so. Costs were determined for installation of 4" water services -from the main in the street to the building. Services would generally be installed side -by -side, within three or four feet of each other, and would approach buildings thusly in hairs in line with the common wall of the buildings. Near the buildings the services would be redirected so that one pipe would be installed to one building and the other pine to the adjacent building. The 4" service would function as a sprinkler service. A connection would be made to the sprinkler service just outside of the building and a shut-off provided for the domestic water service. Both service pipes would be installed through the foundation wall or into the basement, as the case may be, for connection by the property owner. A waiver of tresspass or similar document will be needed from each owner to allow installation into the building. It is unlikely that the point of service thus provided will match the existing point of service, so it can be assumed that at the very leas'_, the domestic water service will need to be reconnected inside the building. Exhibits "A" through "D" show the proposed installations in the street. One disadvantage of installing services in the street is the disruption of traffic. An advantage to this method of installation is that the sidewalk will be maintain<_d _'or pedes=trian traffic the majority of the time. is Downtown Water Distribution Project November 25, 1987 Page 2 Costs were also determined for installing water mains in the sidewalk on both sides of the street, cross connecting those mains to the Main Street water main with services installed to buildings and buildable sites as described above. Exhibits "E" through "G" show the proposed installations in the sidewalk. An advantage of installing the mains in the sidewalk area is that vehicular traffic can be maintained for the majority of the project duration, albeit one lane in each direction, which will increase congestion problems. Some disadvantages of this alternative are disruption to pedestrian traffic for lengthy periods of time, and increase water main footage with associated maintenance, while the Main Street water main exists nearby. Accompanying is a cost estimate for each alternative, and for a combination of the two alternatives, which includes the least cost of each. Also, included is the estimated cost for installing water mains on certain side streets contiguous to Main Street. Those streets are Second Avenue North from Hassan Street to Franklin Street, Franklin Street from First Avenue Northwest to Second Avenue Northwest, Washington Avenue from Main Street to Franklin Street, Second Avenue Southwest from Main Street to Franklin Street, and Third Avenue Southeast from Hassan Street to Main Street. In addition to providing sprinkler service to establishments for system looping, thereby enhancing reliability of the distribution system. All estimated costs include 22% for City expenses. There have been discussions in the past of removing the sidewalks along Main Street as part of the revitalization improvement and constructing decorative sidewalk, such as with paving brick or granite slabs, or of providing an exposed aggregate surface. If that were to occur, the sidewalk replacement may be totally grant eligible, in which case the estimated water main cost could be reduced as follows: Estimated Total Sewer and Water Cost Less Estimated Sidewalk Reconstruction Cost Estimated Net Sewer and Water Cost Combination of Street and Under Sidewalk Sidewalk $ 798,200 $ 717,400 $ 59,900 $ 24,400 S 738,300 $ 693,000 Presently, a number of buildings fronting on Main Street are served from the water main in the alley west of Main Street. We recommend that in conjunction with main Street revitalization and improvement project, those buildings be reconnected to services that will be provided from the Main Street water main or from a side street main, as the case may be. In so doing, the City would be able to ultimately abandon the alley water mains. mains in the alleys present problems from the standpoint of maintenance and main or service freeze-ups. These problems are magnified in the Central Business District where gas mains, telephone cables, and-electrical conductors are alreadv present in the alley, making any need for maintenance excavation difficult. Installation of new mains in t--- alleys alleys is nct recommended for the same reasons, and because t::ne nrcximity of building on either side or both sides of the alleys confine available working space and the buildings themselves or their foundations could sustain damaae during construction. Downtown Water Distribution Project November 25, 1987 Page 3 • One block of sanitary sewer must be reconstructed or rehabilitated. The sewer is on Main Street from Second Avenue North to the river. Costs incurred are evidently not eligible for grant funding. An estimate of cost for sprinkling only the basement of the building in the project area is attached. A cost near the lower estimated figure could be expected if all of the owners hired one contractor, or possibly two or three, to do the work. On the other hand, if each owner hired a different contractor, the cost would likely be near the higher figure. The downtown water main improvement project could be completed in 1989. Suggested sources of funding are the small cities grant assuming the City's application is accepted, the water fund, the revolving loan fund, and the improvement bond. EA /pv attachments 9 9 Respectfully submitted, Eugen Anderson Director of Engineering ESTIMATED WATER MAIN AND SERVICE COST ON MAIN STREET FROM THE RIVER TO 4TH AVENUE SOUTH. Bridge to 2nd Avenue North 2nd Avenue No. to lst Avenue No. lst Avenue No. to Washington AMnue Washington Avenue to lst Arenue So. lst Avenue So. to 2nd Avenue So. 2nd Avenue So. to 3rd Avenue So. 3rd Avenue So. to 4th Avenue So. Estimated Sanitary Sewer Cost on Main Street from the River to 2nd Avenue North $ 505,200 $ 547,100 $ 466,300 ESTIMATED WATER MAIN AND SERVICE COST ON CONTIGUOUS SIDE STREETS 8" Loop 2nd Ave. No.- Hassan to Franklin & lst Ave lst Ave. No.- Franklin to Main St. lst Ave. No. -Main to Hassan St. - Washington Ave. - Franklin to Main St. Washington Ave. -Main to Hassan St. lst Ave. So. (Nemitz Paint) 2nd Ave. So. -Main to Hassan St. 2nd Ave. So. -Main to Franklin St. 3rd Ave. So. -Main to Hassan St. Main street Water Main Main street Sanitary Sewer Side Street Water Main Estimated Total Cost Estimated Cost for 91 Service Items Only S 25,000 No. $ 60,1062) 16,800 19,3042) 40,700 4,800 3,400 4,50Q2) 48,40 28,100 $ 226,100 S 505,200 $ 547,100 $ 466,300 25,000 25,000 25,000 226,100 226,100 226,100 $ 756,300 $ 798,200 $ 717,400 $ 322,800 $ 157,000 $ 242,300 Note: All costs include 228 for City Expense. (1) Cost shown is for service ir: *_allation to watermain in the street. 2) According to present policy, the majority is City Cost, approximately $140,700 total In Street and in Sidewalk In Street In Sidewalk Combination $ 27,100 $ 27,1061)$ 27,100 52,000 117,100 52,000 172,900 147,300 147,300 65,500 52,200 52,200 132,000 143,000 132,000 37,600 42,3091) 37,600 18,100 18,1088 18,100 $ 505,200 $ 547,100 $ 466,300 ESTIMATED WATER MAIN AND SERVICE COST ON CONTIGUOUS SIDE STREETS 8" Loop 2nd Ave. No.- Hassan to Franklin & lst Ave lst Ave. No.- Franklin to Main St. lst Ave. No. -Main to Hassan St. - Washington Ave. - Franklin to Main St. Washington Ave. -Main to Hassan St. lst Ave. So. (Nemitz Paint) 2nd Ave. So. -Main to Hassan St. 2nd Ave. So. -Main to Franklin St. 3rd Ave. So. -Main to Hassan St. Main street Water Main Main street Sanitary Sewer Side Street Water Main Estimated Total Cost Estimated Cost for 91 Service Items Only S 25,000 No. $ 60,1062) 16,800 19,3042) 40,700 4,800 3,400 4,50Q2) 48,40 28,100 $ 226,100 S 505,200 $ 547,100 $ 466,300 25,000 25,000 25,000 226,100 226,100 226,100 $ 756,300 $ 798,200 $ 717,400 $ 322,800 $ 157,000 $ 242,300 Note: All costs include 228 for City Expense. (1) Cost shown is for service ir: *_allation to watermain in the street. 2) According to present policy, the majority is City Cost, approximately $140,700 total SPRINKLER SYSTEMS ESTIMATED SQUARE FOOTAGE AND HIGH/LOW COST FIGURES • No. Bldgs. (Basement) 91,075 $ 45,629 $ Over 1500 S.F. No. Less Than Total 51,961 Basement (Basement) 1500 S.F. Bldgs. Block Square Footage $ 3,840 $ - 11 (1) 13 8 43,434 11 (1) 12 12 34,118 9 11 13 24,094 2 6 27 6,351 1 4 28 24,552 1 7 42 2,560 8 (3) 15 49 27,334 7 (4) 15 50 18,392 0 0 31 - 0 3 32 - 50 86 180,835 Low Cost High Cost) $ 87,800 $ 91,075 $ 45,629 $ 68,442 $ 36,141 $ 51,961 $ 9,526 $ 14,289 $ 24,552 $ 36,828 $ 3,840 $ 5,760 $ 28,975 $ 43,462 $ 25,124 $ 37,686 $ 261,587 $ 349,503 If work is done under one contract, it could be possible to get a low cost of $177,761 and a high cost of $266,641. • I I O O oil i I / SECOND I AVENUE I N( Me fseleeM I , I f i MnriNl �: <IanL. Aloes tlr ru.lu.e I I o +ea•'. rereln� I flier Y .•Sobel Liquor I -- ief /lU Stele ' R - ' S. R•1. I LI Dernfeo Wei• � f !qt 1 Erne 3 S }eM VI 1 Nil L. ' leT R. YCBrer I • •1 re • G.LC. scA•ii 1e e•Ir � F 1 R S T � _,�'�TE'�1'�� - — — — soon, � C 8•irj Tern Corstry i I •01. Cein Tire `.Itlf r L. I { - C6r01'• I poet 0. ice 11 ierrri Y�use C*n}•r I I Cep* Heuer* I " R C*rrlu• s SN•}/ 'le *e reel C••Irel l•roc mmaske core 1 ennfna i t 9, Jonesm, Skoog — - - Ne 1 sbitl0w PN Hospital IN 0 004 I I pbricPs Ca9e7, OYeN'• parblas Meeree 13 DYa/e• lerfiso R s. Rail r me P i I R � P Dovsteln steeoeral _ _ _, I R 3 T City Nell to lies ' Stetwe i Cer r'e Ce�b E 1vgli views castor Mv o 11011 .hm I 8 ( Dovsteln steeoeral _ _ _, I R 3 T City Nell to lies ' Stetwe i i WASHINGTON r�= MJt C.In•en Mutts Motel I eads, { !..'Anon St.• a T- t� -we I I Tow. 'I CwsM, . 810b 00 Coto * .eta Tit. G. /, I I t Cseae C l sealers It wo Vest C.Nral some at use we"Gooke cam p 11 En :ire, Noseltei /esllNrf II itTlri Crate b er Cable to Tb• s•eb Deer I • I- fryM llebM Stole i � — Teoetr• Cost h to Di,brel9 I • Coo FataFatalist. fsll• J T \• larsat• Pie•I e ass. team, AVENUE !I — I r= Cer r'e Ce�b E 1vgli views castor Ceralla :s ••Clot, lbep lorsles AVENUE NC Jay '• 1011229 I 8 ( M P L. Mer @r____ __ - 1. •Ilse i Rommel � 11 ■ ••le /Iei Lfeasl 1 !tore _ I ' were !tar Imp ..71 lie sett rl ... .1.4" lalll,rl I i WASHINGTON r�= MJt C.In•en Mutts Motel I eads, { !..'Anon St.• a T- t� -we I I Tow. 'I CwsM, . 810b 00 Coto * .eta Tit. G. /, I I t Cseae C l sealers It wo Vest C.Nral some at use we"Gooke cam p 11 En :ire, Noseltei /esllNrf II itTlri Crate b er Cable to Tb• s•eb Deer I • I- fryM llebM Stole i � — Teoetr• Cost h to Di,brel9 I • Coo FataFatalist. fsll• J T \• larsat• Pie•I e ass. team, AVENUE !I — I r= Cer r'e Ce�b E 1vgli views castor Ceralla :s ••Clot, lbep lorsles 0111, e M. Jose" Jay '• 1011229 M P L. Mer @r____ i WASHINGTON r�= MJt C.In•en Mutts Motel I eads, { !..'Anon St.• a T- t� -we I I Tow. 'I CwsM, . 810b 00 Coto * .eta Tit. G. /, I I t Cseae C l sealers It wo Vest C.Nral some at use we"Gooke cam p 11 En :ire, Noseltei /esllNrf II itTlri Crate b er Cable to Tb• s•eb Deer I • I- fryM llebM Stole i � — Teoetr• Cost h to Di,brel9 I • Coo FataFatalist. fsll• J T \• larsat• Pie•I e ass. team, AVENUE !I — I r= 4i aC City Nall ►Nita $tail" I 1 Neon setoff 1 L. offer 4 y0,, 7 00 WASHINGTON �� • NNtk In «n o: L:.eor a. I 1 f `o P Point rassay ear agar r_ i FIR Cit is own Bank Perkin* III o I angu aaes, r. to . I �5 KOmro�r J - j Natty "oleo hits V "t•r.,c¢ Wasters Su.. Btiakess Studio Nstdoas, s «as rnr •tperl. Peu raeler's Drs. Cors:n: Tolson4 trade'* Citlse.: Boot Potopso I 1lrie t'a r..t. Cote •.� style ^ tk .«tohe. Dresses rsNer. The . ! J � C6r ot= e ..ton. pie" -,N,. -� -� AVENUE �I O' M r j Pat Ra 0,"1 -j . tw'N1, C a. ..t+ .:rraooet Mml. Tro.o- ' j valste Stop y N:tO Jo.U' Naatan valley ON D� 3v•at- � o s�vpp. - j e. Be, .. Lr 7�VENUE SE Natty "oleo hits V "t•r.,c¢ Wasters Su.. Btiakess Studio Nstdoas, s «as rnr •tperl. Peu raeler's Drs. Cors:n: Tolson4 trade'* Citlse.: Boot Potopso I 1lrie t'a r..t. Cote •.� style ^ tk .«tohe. Dresses rsNer. The . ! J � C6r ot= e ..ton. pie" -,N,. -� -� AVENUE �I O' M r j Pat Ra 0,"1 -j . tw'N1, C a. ..t+ .:rraooet Mml. Tro.o- ' j valste Stop y N:tO Jo.U' Naatan valley ON D� 3v•at- � o s�vpp. - j e. Be, .. Lr 7�VENUE O 101 p., L,i... 5 r.n K rad Peter : :. I pool::: I '' •Morsen i Nicter � . Lena Country W't goo's I Ca S.N O,oee stamp, p!kw e ' ltupt 510's O.oa j I 9.a tt i II "Ves' .7 a� aa� ar. arm erg � �. r AVENUE ti �SoO }I S0 oars jtad%s I •, f Olafson Vol," Ke ■roiw Lodge SECOND i - �} -F--01t R-T- me. 11 feat 00 snider Drvf stock Me■e Fvroikning Fat;: L ProNriiu - - - I a in area. Qagt I Pit •t octal 'f goals •term II Gases r. and's C AvENUE Sou- I I••i► k` I � ' ZF i E M• ^C \�ntM ae.i0e ave►ii e . I� Hvtc Aieeee Fderel So 1104. .bPPe � • ■ � e =es ►ear Offset ie I s. ZI I' Ll JII Y Z' a a: Mad Owl �I i - �} -F--01t R-T- me. 11 feat 00 snider Drvf stock Me■e Fvroikning Fat;: L ProNriiu - - - I a in area. Qagt I Pit •t octal 'f goals •term II Gases r. and's C AvENUE Sou- I I••i► k` I � ' ZF i • ■grist. L pion L. aea.it t n r n v • c A V G %7. t loo t4 P r � CAVet Par bi Oe was I ` ' ,I Totter ieel Jera � I ink. FOitA I, LvrAU Se CAVeA � Con. Corfl .0'1io^i II ch.,-b` i 1 1 rl L !i T OV E M• ^C \�ntM ae.i0e ave►ii M. htwbew Hvtc Aieeee Fderel So 1104. a Let. i us. ►ear Offset • ■grist. L pion L. aea.it t n r n v • c A V G %7. t loo t4 P r � CAVet Par bi Oe was I ` ' ,I Totter ieel Jera � I ink. FOitA I, LvrAU Se CAVeA � Con. Corfl .0'1io^i II ch.,-b` i 1 1 rl L !i T OV Yalsad Caeey Oaese's Parkin# R [INNs SECOND Me raelaaae PO 11Neito1 htriure e OrNSi tfar S. Bale D standard afean F1 - - - - - -- f I R S T P Hill- City R P a Xell �ic• $1 Otio• WASHINGTON Q I his ' �\ I I �i I I r Q I O w \' ,No.! Ll 1 a i • w a Not cn!n ron i- M etch yofol ,rte , M_a'G a 71R A» OFel Tae $1 �•�• ! ' T AVENUE N I) L. •flee I II I ' Yoolitipol Liplar "I Store I' r a I' f Ste; [lei aNl Ott L. I tar -. . . O.T.C. SGha tt pis -rw - - -- - --�� *� 1 I Teas -- C•wfr, XNGB SeY Cale .eH Tire S„ey II — t Office Cuaa I I C l a Carlos west Central $erase - Care ::fray II NoNHN ►aalNafv - ITIN Crew 1. . •r GBM The assn Deer f +sr ttoar n•I• J WW co, 1 DaarNx I ( ells l tee •r•Nats 11 aHHy�L The tor►ere ►iehl C s�r-ss sera —yam -nimow mons, - •ter- — aaew tea. AVENUE II I I �, E K' ! le' eiIia [srrsi Visiaa Canter assets Caroline's Same Bernina ears e rasa.. N. Jeaaee Chruy's Jay's Pixie ! R•c r a i time t•ntH mob* Baker) v•rueee BerNr $Ile► l Moyer WASHINGTON Q I his ' �\ I I �i I I r Q I O w \' ,No.! Ll 1 a i • w a Not cn!n ron i- M etch yofol ,rte , M_a'G a 71R A» OFel Tae $1 �•�• ! ' T AVENUE N I) L. •flee I II I ' Yoolitipol Liplar "I Store I' r a I' f Ste; [lei aNl Ott L. I tar -. . . O.T.C. SGha tt pis -rw - - -- - --�� *� 1 I Teas -- C•wfr, XNGB SeY Cale .eH Tire S„ey II — t Office Cuaa I I C l a Carlos west Central $erase - Care ::fray II NoNHN ►aalNafv - ITIN Crew 1. . •r GBM The assn Deer f +sr ttoar n•I• J WW co, 1 DaarNx I ( ells l tee •r•Nats 11 aHHy�L The tor►ere ►iehl C s�r-ss sera —yam -nimow mons, - •ter- — aaew tea. AVENUE II I I �, E K' ! le' P. I Is. ' Clt, Rell Police P41194 I Ro &, gaiety I L. never ' WASHINGTON Yoala @r•eas c .•IST I I f �� �e MelasinNn Yetse Neal �T O� leader Cl,ikea ' Ci,laesi $Oak a seek ' - Pastore $to ►v a. Ilark;., Irinkmas gtadle •Ir le k'o Ydydoee $boo■ 1 i aske mss' rages Caro rain - ••oerla pa• Wesley's prof 1 f Cer..a. 'p Toimeas 'i R pTrpth ' SECOND Yoala @r•eas c .•IST I I f FIR �T Cl,ikea ' Ci,laesi $Oak seek ' Ilark;., •Ir le k'o R. potatoes i aske mss' rages Caro 'i R pTrpth ' SECOND go, Really woreno wateroo[ toe. • we World Traysl q:Jaee Shop i «000* r Jana)'. J Naeran VOfbr gevr gfNn g,•ts i W TaM1ea I C••e y, N Q71 ONr•f. w ' G•: /arRdele J The gere•te ►io•r snake AVENUE I O 4 o� D I I 'I R. Laws VLNUE z O „$Pr�nKied I i ►o Pool •Rde toa, Interiors IF Nlalcr i Lae, j at j R f91e Sea•, Chi S g w 0•son Stamps �I ► „oi'r OepH I I. Y il$1014 G' aa/ i I goose ag'”" sage"' asset ger" e""' AVENU£ SO [ -tor I I to prro. ' c Shp9pr c e go, Really woreno wateroo[ toe. • we World Traysl q:Jaee Shop i «000* r Jana)'. J Naeran VOfbr gevr gfNn g,•ts i W TaM1ea I C••e y, N Q71 ONr•f. w ' G•: /arRdele J The gere•te ►io•r snake AVENUE I O 4 o� D I I 'I R. Laws VLNUE z O „$Pr�nKied I i ►o Pool •Rde toa, Interiors IF Nlalcr i Lae, j at j R f91e Sea•, Chi S g w 0•son Stamps �I ► „oi'r OepH I I. Y il$1014 G' aa/ i I goose ag'”" sage"' asset ger" e""' AVENU£ SO [ -tor I I to prro. ' je..;. i �posses Laps SECOND LL I ! I Fe 10 Fl ' I _angl ♦go Ilan; j . �YI-,I II 'ul 1' a �... waste sun Oa..t ORION AVENUE Mnta "noon Federal sea.p . Loa. "^ all "' . . r...laa.aa ..r p r ; s 14041,1060" Federal .Ma11. s a • L as" ZI � J' Y 2� i Q W I Ilea Owl i LL I ! I Fe 10 Fl ' I _angl ♦go Ilan; j . �YI-,I II 'ul 1' a �... waste sun Oa..t ORION AVENUE Mnta "noon Federal sea.p . Loa. "^ all "' s..ing s.M11 r...laa.aa 14041,1060" Federal s a • L as" u. s. i� 1 it t i II THIRD AVENUE S. Falls L.ta.r.. Oases Patting I� SOU I I z l' al U v� I =I I II ,1 I i� �. ... ..,_ f J i 0 W W_ girl f•r.1 •.r/ SECONO Notable*" 1=61 Ystra I I L� 1N.ICra gas tLea _1 r 4664•: Para•: h z.s6o ••rtl.s s 1 0. sold 00"1"* /t6•s•rs FIRST li- W •1 !k•o.ia hrt AVENUE AVENUE N, NOR NOR- N i i I I Mw Tire a s Coast t to 111. Tar+ g 1.512, C.wtr. N6ta► saw Cale saU Tln lPeat office Core Chasers 1.342 3r50C rHr T...irrr.Sam ilr.t 1,400, ..spiral ..a11NrrT 2,'72 466.01 2.772 C..• 4 ..r Cable 4. /4C • j TN saga War • s r star : W /rrr star r. 2S782I T.Nrra 4,2' N, NOR NOR- N i i I I Mw Tire a s Coast t to 111. s � n W W `c seem w SECOND / Iiawlal 0suad s•sASOn Oasa1/ • ;70 • u FIRST R c"T Mall Ps"o s1aNM 1..m I I rs% tassis da0s•b 6;921% 2.560 Parkins 1,200 C r11 s 1,672' 0.1.000• IV 772 /.fi .irsa Mr.Ms • 2,08 0.111ps •staff S. sold Owstwa F] _• _L slclar 1NN•N ;70 • u FIRST R c"T Mall Ps"o s1aNM 1..m I I rs% 1•ryti Ylsis• 3r212 720 C•rslt00a *•aceop sass 6;921% ••niN 1,200 C r11 s 1,672' 0.1.000• 1,120 O•rwev's 772 /.fi .irsa ♦, bOMer s•r 1,320 • 2,08 0.111ps •staff W pAsr Q• _• _L slclar WASHINGTON d-�u Part AVENUE AVENUE No ur W - ti CN h AVENUE h I 11 WASHINGTON FIRST 1.672 M. IN»a pint M•teYwe World Travel 2. 111Ildte ttoy 1,2 1.120 steam's • ,772 ray's ►tote i 1,120 patrolling •our Meaaae really ,5,126 Lodes W 9~8 2,196 eaSo s•t•re W Mal Pam* HatN• �. 1, »2 •H•rNa MA•r • L. Mayor 2,904 apicfNclid oaedt Mere' WASHINGTON FIRST Sr } 06 1 8/ 581 L Tor pint M•teYwe World Travel 2. 111Ildte ttoy 1,2 rlaalr .1,708 stytt 111.66 2 1 782 i Maeyi 1. ' t' eeeept• Meaaae really ,5,126 Lodes Sr } 06 1 8/ 581 AVENUE L Tor Grew t .R MGM The safe ow *veto stytt 111.66 2 1 782 i W f.Mtt• 6,2to 9~8 stater• 12, 448 epriiYclad. ft• soraora •I•►f 1,956 AVENUE AVENUE so at. r [tb C4 SECOND AVENUE SO L Tor W i W cz to AVENUE so at. r [tb C4 SECOND AVENUE SO see s l >< _z i ON 0.1 -s son Frauu fay /ar Or*# ,24,552{ Groat None F0►als&las 4;0k 4g L.11a ►fo►or16» --- -- - - - - - - - - 4 ---- - - - - -- Rsr Mi�al 0wa Oron r• CM.HNIIN al FOUR T H 1. --- - -- t! f THIRD AVENUE S. CNlar/ !1 I Feltit L► ►0rala0 •» 110far ,0241 � -- - - - ' World fraoal 2. 1,9 1q 8% BL 1004 r ag11aN OaOF 1.206' 0 960.0"1 C&nta Nos l NON+ 1,584' «a 3.040. Nil& , N04J0 1.s 3 416 0 0 Grove 110"0 _ _ Cans& ►lull. 2,400 s0ao1 N. Isosaa volley W pork .1.708 a0rw& ,5.126. Lops *gar 2.200 SECOND AVENUE BOUT see s l >< _z i ON 0.1 -s son Frauu fay /ar Or*# ,24,552{ Groat None F0►als&las 4;0k 4g L.11a ►fo►or16» --- -- - - - - - - - - 4 ---- - - - - -- Rsr Mi�al 0wa Oron r• CM.HNIIN al FOUR T H 1. --- - -- t! f THIRD AVENUE S. CNlar/ !1 I Feltit L► ►0rala0 ' AVE. S. t h t 110far )\K. � -- - - - ' - - - - - - I' l 1 i� Nil& Lo0oroa _ _ Cans& _ _ _ - _ ----- ' AVE. S. t h t 9 (612) 587 -5151 lTY OF HUTCHINSON VASHING TON AVENUE WEST ;HINSON. MINN. 55350 M E M O DATE: December 2nd, 1997 TO: Mayor and City Council FROM: Director of Engineering RE: Northwest Water Tower Inspection Attached for your information is a summary of the tank inspection performed by the firm of AEC Engineers & Designers. Section 2 of the summary shows a cost estimate for the project. Some of the items of work can be performed by the City, including preparation of plans and specifications and construction inspection, and some of the interior and exterior structural repairs. By so doing, the City could save $20,000 to $25,000 in estimated cost. Due to the condition of the inplace coatings, this project should be done in the next one or two years. EA /pv attachments Respectfully submitted, Eugene Anderson4tt� Director of Engineering Ir 31 oil ewwm Avwer Oww nasu4m ELEVATED WATER TANK INSPECTION .,. _ .: Hutchinson Client: City of Northwest Tank Location: County Road 12 - Fifth Avenue Tank Description: • MMG Sino - edestal Spheroid Type of Coatings: Interior: Coal Tar Epoxy Exterior: Alkvd Paint System Inspected by: Jack Kollmer Date of Inspection: October 13. 1987 INSPECTION RESULTS 1.0 Conclusions and Recommendations The following repairs or modifications are recommended: 1.1 Interior Structural 1.1.1 Remove by air arc gouging or cutting torch the approximately twenty -one (21) 4" x 6 rigging brackets located on the tank shell near the equa- tor. Many of these brackets have been broken off by ice damage, or are bent or flattened against the tank shell. The broken brackets have left a jagged weld scab mark on the tank shell and are rusting. See Photo Nos. 2,3,and 4. Repair the scab marks on the tank shell per Surface Prepara- tion Requirements as found in Appendix C. 1.1.2 Install a tank bowl drain plug and piping system connected to the overflow pipe to allow ease of cleaning and draining the tank bowl area. See Photo NO.5. 1.1.3 Weld or epoxy caulk unwelded bottom side of three (Z) stiffenerz located on the drywell tube. See Photo No.e. This is required to nalt corrosion in this a-ea. i.l.a Sr.st.al d .E.arste, remcvable *_op, roof vent sys- tem. similar tc BMT Standard r_aw ng _ -Q� r it pp ? -ii fs. "ne Press nt tank venting isa -com- ,•l_ -CEG Vlc an ,. r,scr eer.e. open na s. ro-:nd 'hE tams iryweil tvte through roof j,.mction. See Photo i • 1.2 Interior Coating 1.2.1 we recommend that after structural repairs are completed, the entire reservoir surfaces be pro- perly prepared and the coating replaced with a light-colored polymide epoxy system, similar to Rust -Oleum Series 9500 Epoxy, Koppers Hi- Guard, or the Tnemec Series 20 Pota -Pox Epoxy. 1.3 Exterior Structural 1.3.1 Repair minor spalling to concrete grout under the tank base plate. See Photo Nos. 9 and 10. 1.3.2 Caulk porosity in the base plate around anchor bolts to halt rust and corrosion from water trapped in this corrosion pocket. See Photo No.10. 1.3.3 Install locking devices on roof access manways. The Minnesota Health Department recommends that "Fencing, locks on access manholes, and other necessary precautions shall be provided to prevent trespassing, vandalism, and sabotage." • 1.3.4 Install circular handrailing system on tank roof around drywall tube and roof manway. See Photo No. S. The Minnesota Health Department recommends: "Railings or handholds shall be provided on-eleva- ted tanks where persons must transfer from the access tube to the water compartment." • AEC 1.3.5 Install one (1) 24" round AWWA hinged ventilation roof manway as directed by the engineer, similar to BMT Standard 0-014 or equivalent. See Appendix B. This vent is required to provide proper ventilation during abrasive blasting and coating. 1.3.6 Remove restriction at overflow pipe opening and install overflow pipe screen. See Photo Nos.11 and 12. Use corrosion resistant one -in -four mesh screening. i • 0 1.4 Exterior Coating 1.4.1 Due to age, chalking, deterioration, lack of inter - coat adhesion, and lack of resistance to mechanical damage (rocks) and graffiti, the entire exterior coating should be removed and replaced with an epoxy /urethane coating system, similar to those manufactured by the Koppers or Tneme� companies. 2.0 Engineering COS Estimates 4 2.1 Interior structural repairs r $ 6.600.00 2.2 Interior coating - wet area v 9f �Q_ru�0.00 Type of coating - epoxy system 2.3 Interior coating - dry area None required 1.04 $ 0 O 2.4 Exterior structural repairs C 'e- $ 5.200.00 2.5 Exterior coating - dry area Type of coating - epoxy /urethane system 44.500.00 2.6 Engineering specifications and 18.500.00 inspection fee 2.7 Estimated Total Cost $107-800.00 2.8 Estimated job duration 5 - 6 weeks. 2.9 These cost estimates represent the current pricing struc- ture. If you plan to proceed with the coating of this tank, the sooner the specifications are ready for bidding, the more competitive the bids will be. AEC • 3.0 Future Inspection Schedule 3.1 The tank painting should be first inspected within the warranty period, and every three years thereafter. 4.0 Life of G ^� *� ^a System 4.1 with the recommended paint system and a regularly scheduled tank inspection and maintenance program, the tank interior and exterior should not require complete recoating for the next fifteen to twenty years. Report submitted by: AEC - ENGINEERS 3 DESIGNERS �/ John R. Buzek, P.E. o President 0 ,tier Aw /!d7 Date Enclosures - Field Inspection Report - Appendix A - Appendix 8 - Appendix C 1030509 AEC