HomeMy WebLinkAboutItem 23 - 39th Street Improvement - CO1 AGENDA ITEM
MAYOR & COUNCIL COMMUNICATION
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DATE: September 16, 2014 REGULAR ITEM # 23 AGENDA ITEM: 39th Street North: Street and Sanitary Sewer Improvements - Change Order No. 1 SUBMITTED BY: Chad Isakson, Project Engineer
THROUGH: Dean A. Zuleger, City Administrator REVIEWED BY: Jack Griffin, City Engineer Cathy Bendel, Finance Director
SUGGESTED ORDER OF BUSINESS:
- Introduction/Staff Presentation ..................................................... City Engineer
- Questions from Council to Staff ............................................. Mayor Facilitates
- Public Input, if Appropriate………………………………….Mayor Facilitates
- Call for Motion ............................................................... Mayor & City Council
- Discussion ....................................................................... Mayor & City Council
- Action on Motion .................................................................... Mayor Facilitates POLICY RECOMMENDER: Engineering
FISCAL IMPACT: Cost impacts to be presented at Council Meeting This change order will increase the scope of the contractor improvements and therefore the contract amount by a final amount to be presented at the Council meeting. Staff will present a brief water system planning update at the council meeting to update the council in regards to the overall water system infrastructure plan and the need for the improvements.
SUMMARY AND ACTION REQUESTED: The City Council is respectfully requested to consider approving Change Order No. 1 for the 39th Street
North: Street and Sanitary Sewer Improvements, thereby increasing the contract amount by an amount to be presented at the Council meeting. The recommended motion for the action is as follows:
“Move to approve Change Order No. 1 for the 39th Street North: Street and Sanitary Sewer
Improvements in the amount of $________________.”
City Council Meeting [Regular Agenda Item 23]
September 16, 2014
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LEGISLATIVE HISTORY/BACKGROUND INFORMATION: Concurrently with the design of the 39th Street North: Street and Sanitary Sewer Improvements project, engineering has been working with the City’s water system consultant, AE2S, to identify and configure
the City’s comprehensive water system as needed to support the proposed growth and development. Reconfiguration and verification of pipe sizing, storage requirements, and other infrastructure needs is necessary to provide a functional system as the proposed development plans and subsequent phasing of
the infrastructure becomes known. Through this process, staff has identified an opportunity to increase the size of the Village trunk watermain, together with redefining the pressure zone boundaries in and around the Village area, in a manner that will eliminate the future need for an elevated storage tank in the Village. The pipe upsizing may also result in the ability to defer the need to construct the low pressure system water tower south of 10th Street for 1-2 additional years. The overall water system savings could be significant but will result in the increased cost to upsize the Village trunk watermain. The water system modeling work has identified that a 16-inch trunk watermain through the Old Village Area would enable these overall system changes and would increase the municipal water service and fire protection to the low pressure system along the I-94 corridor.
With the 39th Street North: Street and Sanitary Sewer Improvements project currently in construction, there is an opportunity to complete one segment of this trunk watermain by adding the replacement of the
watermain to the scope of this project through a change order. Engineering has prepared a change order and received contractor pricing for the work. The change order details would be as follows:
1. Remove existing 8-inch watermain along 39th Street from Lake Elmo Avenue to Laverne Avenue. 2. Install 16-inch watermain along 39th Street from Lake Elmo Avenue to Laverne Avenue including all necessary fittings, valves, and appurtenances required. The remainder of the 16-inch trunk line would be included with future projects such as the CSAH 17 Lake Elmo Avenue Street and Utility Improvements project scheduled for construction in 2015 and 2016. RECOMMENDATION: Staff is recommending that the City Council consider approving Change Order No. 1 for the 39th Street North: Street and Sanitary Sewer Improvements, thereby increasing the Contract Amount by an amount to be presented at the council meeting. The recommended motion for this action is as follows:
“Move to approve Change Order No. 1 for the 39th Street North: Street and Sanitary Sewer Improvements in the amount of $________________.”
ATTACHMENT(S): 1. N/A (Change Order No. 1 to be presented at the Council meeting).