5.3.
Public Works Committee
- Meeting Date:
- 09/17/2019
- By:
- Bruce Westby, Engineering/Public Works
Title:
Recommend City Council Approval of Ramsey Town Center 9th Addition Pond Lining Improvements, Improvement Project #19-06
Purpose/Background:
Purpose:
The purpose of this case is to recommend City Council approval of Ramsey Town Center 9th Addition Pond Lining Improvements, Improvement Project #19-06.
Background:
Two un-lined stormwater ponds were constructed as part of the Ramsey Town Center (RTC) 9th Addition in the early 2000's. However, the developer walked away from RTC 9th Addition before it was completed. CentraHomes is currently completing this private residential development.
Based on current stormwater management and wellhead protection standards, infiltration of stormwater is prohibited in Wellhead Protection Areas, which encompasses all of RTC 9th Addition, including the two ponds. Staff is therefore proposing to line the two ponds in RTC 9th Addition to prevent infiltration.
While CentraHomes was developing their plans, Staff asked what their costs would be to line the ponds in hopes of executing a reimbursement agreement with them to complete the work all at one time. In order for CentraHomes to obtain quotes, they needed plans for the pond lining improvements. City Staff developed plans and provided them to CentraHomes. Unfortunately, their quotes were significantly higher than the engineer’s estimate developed in house based on the plans prepared in house. Attached is a copy of the draft plans prepared by City Staff.
Staff would like to bid the project this fall/winter in hopes of receiving better bids based on the time of year. Staff will present the draft plans, and other information, in more detail during the meeting.
The purpose of this case is to recommend City Council approval of Ramsey Town Center 9th Addition Pond Lining Improvements, Improvement Project #19-06.
Background:
Two un-lined stormwater ponds were constructed as part of the Ramsey Town Center (RTC) 9th Addition in the early 2000's. However, the developer walked away from RTC 9th Addition before it was completed. CentraHomes is currently completing this private residential development.
Based on current stormwater management and wellhead protection standards, infiltration of stormwater is prohibited in Wellhead Protection Areas, which encompasses all of RTC 9th Addition, including the two ponds. Staff is therefore proposing to line the two ponds in RTC 9th Addition to prevent infiltration.
While CentraHomes was developing their plans, Staff asked what their costs would be to line the ponds in hopes of executing a reimbursement agreement with them to complete the work all at one time. In order for CentraHomes to obtain quotes, they needed plans for the pond lining improvements. City Staff developed plans and provided them to CentraHomes. Unfortunately, their quotes were significantly higher than the engineer’s estimate developed in house based on the plans prepared in house. Attached is a copy of the draft plans prepared by City Staff.
Staff would like to bid the project this fall/winter in hopes of receiving better bids based on the time of year. Staff will present the draft plans, and other information, in more detail during the meeting.
Timeframe:
Staff estimates approximately 5 minutes will be required for presentation and discussion of this case.
Observations/Alternatives:
Observations:
Lining the ponds will protect the source aquifer for the City’s municipal water supply system.
Alternatives:
Alternative #1: Motion to recommend City Council approval of Ramsey Town Center 9th Addition Pond Lining Improvements, Improvement Project #19-06.
Alternative #2: Motion of other.
Funding Source:
The engineer's estimate of project costs for the improvements is $85,000. Project costs are proposed to be split evenly between Stormwater Management and Stormwater Utility Funds.
Recommendation:
Staff recommends alternative #1.
Action:
Motion to recommend City Council approval of Ramsey Town Center 9th Addition Pond Lining Improvements, Improvement Project #19-06.
Attachments
Form Review
| Inbox | Reviewed By | Date |
|---|---|---|
| Grant Riemer | Grant Riemer | 09/12/2019 11:44 AM |
| Kurt Ulrich | Kurt Ulrich | 09/12/2019 03:08 PM |
- Form Started By:
- Bruce Westby
- Started On:
- 09/12/2019 04:35 AM
- Final Approval Date:
- 09/12/2019