2009-10-27_PWETC_AgendaPacket - Laserfiche WebLink

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The Mill and Overlay projects are proposed to be financed through our street infrastructure funds and MSA funds. Our pavement condition and maintenance strategies result in a recommended $750,000 annual program for our city streets, excluding the MSA system. After receiving. bids for these projects, we will request that the City Council award the bid to the- lowest responsible bidder. 2. Sanitary Sewer lining and replacement: The majority of the city's sanitary sewer mains were constructed in the late 1950's and early 1960'x, utilizing clay file pipe. Over time the joint materials have failed allowing root intrusion. The pipe is also susceptible to cracking and construction damage. The 2010 Capital Improvement Plan includes funding for a sanitary sewer main lining program to extend the life of our sanitary sewers by 50 years or more. This technology essentially installs a new resin pipe inside the old clay file sewer main without digging up city streets, which results in minimal disruption to residents during construction. The liner pipe is inserted into the main through existing manholes and cured in place with a heat process. Any given segment is usually completed in one working day. Service line connections are reopened using a robotic cutter and remote cameras. During the process, existing flows are bypassed using pumps. This technology has been proven over The past 20 years, and costs have become competitive with open cut replacement. The City started doing this type of renovation in 2006 and will have an annual project for the foreseeable future- to replace our aging sewer infrastructure. This Technology also prevents infiltration of groundwater into the system and can be credited. toward our inflow/ infiltration surcharge. The location of this work varies and is spread throughout the City based on system priority. We are also evaluating needed sanitary and storm sewer replacement needs in our pavement replacement areas as well as utility infrastructure needs in County and State project areas. Those replacements are being identified as the project plans are being developed and will be communicated to the Council at a later date. 3. Seal Coat; Pavement maintenance policies support an annual seal coat program of approximately 15 miles of city streets each year. This consists of applying a film of bituminous oil and covering it with fine aggregate. These treatments have proven to add. a minimum of 10 years to the life of the pavement. With potential continued budgetary constraints in 2010, we may need to reduce the size of the program depending on the bid prices received in February 2010 for materials. Asphalt material prices are extremely volatile and nearly doubled in price by mid-summer 200$. In 2009, they held at 200$ costs. it is expected that these prices may continue to rise. Reducing the program will have a negative impact on the life of the pavements as every $1 of deferred maintenance has a $5 future cost. 4. PathwaVS Work continues developing the- plans for the federally funded pathway along 1~airview Ave. from the Rosedale area to the St. Paul. campus of the University of Minnesota. Initially construction was anticipated to begin in 2009 but due to workload in 2009 staff was unable to develop final pans and specifications required for bidding. This project is anticipated to be ready for bid in Spring 2010. The estimated cost for this project is $1,OSO,OOD. Financial Impacts The Street Infrastructure Fund interest earnings support the local street Mill and Overlay program. Due to current construction costs this level of program maybe in jeopardy for future years due to lower interest earnings. MSA street overlays are proposed to be funded from the