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1g. 2008 Street Improvement Project Storm Sewer Pipe Replacement CITY OF CHANHASSEN 7700 Market Boulevard PO Box 147 Chanhassen, MN 55317 Administration Phone: 952.227.1100 Fax: 952.227.1110 Building Inspections Phone: 952.227.1180 Fax: 952.227.1190 Engineering Phone: 952.227.1160 Fax: 952.227.1170 Finance Phone: 952.227.1140 Fax: 952.227.1110 Park & Recreation Phone: 952.227.1120 Fax: 952.227.1110 Recreation Center 2310 Coulter Boulevard Phone: 952.227.1400 Fax: 952.227.1404 Planning & Natural Resources Phone: 952.227.1130 Fax: 952.227.1110 Public Works 1591 Park Road Phone: 952.227.1300 Fax: 952.227.1310 Senior Center Phone: 952.227.1125 Fax: 952.227.1110 Web Site www.ci.chanhassen.mn.us 1~ MEMORANDUM TO: Todd Gerhardt, City Manager Paul Oehme, Director of Public Works/City Engineer ~ &, O~ FROM: DATE: October 13, 2008 SUBJ: 2008 Street Improvement Project 08-01: Approve Quote for Storm Sewer Pipe Replacement PROPOSED MOTION "The City Council approves a quote from Parrott Contracting, Inc. in the amount of $54,940.30 for Storm Sewer Pipe Replacement." City Council approval requires a simple majority vote of the City Council present. BACKGROUND In conjunction with the 2008 Street Reconstruction Project on Laredo Drive, the storm sewer system was upgraded and replaced within the right of way. At the north end of the project the storm sewer drainage flows through City-owned and maintained pipe on a beachlot owned by an association and discharges into Lotus Lake. The storm sewer pipe under Laredo Drive was replaced in conjunction with the street project however the pipe on the beachlot was not included in the project. The pipe on the beachlot was constructed in the early 1960's and has severely deteriorated. The pipe is corrugated metal and the invert and the top of the pipe has rusted away in many locations and appears to have created a sink hole from the surface in one location. Staff is recommending replacing the pipe with PVC storm sewer pipe with a reinforced concrete end section. If this pipe is not replaced soon, this pipe could have the potential of plugging and washing out areas on the beachlot and damaging private property. Staff has discussed these improvements with the president of the beachlot association and he did not have any issues with the work. The City has a utility easement in this area that covers most of the pipe. Staff will need a temporary construction easement from the association prior to work starting. DISCUSSION Staff has obtained two quotes for this work as follows: S.M. Hentges & Sons, Inc. $59,498.50 Chanhassen is a Community for Life - Providing for Today and Planning for Tomorrow Todd Gerhardt Approve Quote for Storm Sewer Pipe October 13,2008 Page 2 Parrott Contracting, Inc. $54,940.30 Parrott Contracting, Inc. submitted the low quote for this work. Parrott Contracting, Inc. has worked on many City projects in the past and their work has been acceptable. Funding for this work is recommended to come from the Surface Water Management Fund, Fees for Services. Attachment: Location Map Budget Page g:\eng\public\_2008 projects\08-0l 2008 street improvements\bkgd 101308 apprv quote for ss replacement.doc ~:~ .;. .;. .) '.) .) .~ -. ,1 ; .~ /:----- ',-:_",-.:--:~':';. --:?) ___~.-r--_-,--'...--....._ Lotus Lake G :\Eng\Joleen\Eng Proj\Paul\08Streets\Site Map .mxd 2007 to ,. 2008 2008 BUDGET % INC/(DEC) 128,500 1.7% :. 5,000 0.0% 18,200 4.6% 16,100 5.2% !. 800 14.3% 168,600 2.4% 500 0.0% i. 1,500 0.0% 20,000 300.0% i. 200 0.0% 300 0.0% 22,500 200.0% '. -3-50,o.i~) (41.7%) ( ....---.--- 8;000 0.0% 0.0% . 10,000 0.0% 3,500 0.0% 4,500 0.0% .. 500 0.0% 5,000 0.0% 0.0% . 381,500 (39.6%) 572,600 . ,I I I I I I 80