Consider Recommending City Council Approving Plans and Specifications and Authorizing Advertisement for Bids for Wood Pond Hills 2^nd – 5^th Street Reconstructions, Improvement Project #22-06

Purpose:
The purpose of this case is to consider recommending City Council approving plans and specifications and authorizing advertisement for bids for Wood Pond Hills 2^nd – 5^th Street Reconstructions, Improvement Project #22-06.
 
Background:
City Improvement Project 22-06 proposes to reconstruct the streets within the Wood Pond Hills 2^nd, 3^rd, 4^th, and 5^th subdivisions, generally located southwest of Sunwood Drive and Nowthen Boulevard. The streets total approximately 4,600 linear feet (0.88 miles) in length, and are 31 feet wide urban sections with surmountable concrete curb and gutter. A street segment summary is attached to this case.
 
Project History

• 2022 – 2031 Capital Improvement Program – listed as street reconstruction for 2022
• August 10, 2021 City Council accepted proposals for geotechnical report and topographic survey
• August 24, 2021 City Council accepted proposals for utility testing
• October 26, 2021 City Council ordered plans and specifications

 
Pavement History
The streets within the subdivision were built between 1993 and 1996. Pavement maintenance has included crack seal / seal coat improvement in 1998, 2005, and in 2013. Maintenance crews have performed patching over the last several years, including extensive spray patching. 2021 PASER values ranged between 2 and 6, with the bulk of the subdivision being rated at 2. PASER values of 2 are as low as any street segments within the City.
 
Ground Penetrating Radar (GPR) was performed on the street segments. Bituminous pavement thickness was found to have an average thickness of 2.9 inches. Aggregate base thickness was found to have an average thickness of 4.4 inches. The overall average section thickness was 7.3 inches.
 
Proposed Improvements
Staff review of the geotechnical report found the sub-base material as poorly graded sand and poorly graded sand with silt, these materials are well suited for pavement support and are considered non-frost susceptible and are also free draining materials. With the sub-base material being sufficient, Staff is proposing to use the current standard City pavement section of 4-inches aggregate base, and 3.5-inches new bituminous pavement. The 4-inches of aggregate base is proposed to be compose of recycled reclamation material.
 
Staff review found the existing pedestrian ramps within the project area did not meet current ADA requirements, therefore all four pedestrian ramps will need to be removed and replaced. The concrete curb and gutter in the project area were found to generally be in good condition, and only spot repairs are proposed. Staff is proposing minimal impacts to the existing bituminous trail which crosses through the project, beyond what is required for matching into the new pedestrian ramps.
 
A portion of the cul-de-sac located on the south end of Junkite Street has had some undercutting of the existing concrete curb and gutter. This project proposes to remove and replace a portion of the concrete curb and gutter, perform a full-depth restoration of the compromised road section, and provide a stabilized erosion control mat in the boulevard area to prevent future erosion of the soils.
 
Review of the storm sewer, sanitary sewer and watermain did not find issues requiring repair. The City will be placing inflow and infiltration (I/I) barriers on the sanitary sewer manholes with this project. The City received an MCES I/I Grant for this work, which will reimburse the City for the costs associated with the I/I barriers.
 
Build Process

• Full-depth reclamation of existing bituminous pavement and aggregate base
• Project removals (spot curb and gutter, pedestrian ramps, driveways as needed)
• Place new concrete curb and gutter and pedestrian ramps (5 to 7-day cure time)
• Remove excess reclaim material, shape and compact 5 inches of remaining material
  • Subgrade excavation required to remove approximately 0.5 inches below the existing reclamation material to allow 4-inch thickness
  • Excess reclaim is stockpiled and will be used on future City projects
• Place first lift of bituminous pavement
• Finish any trail and driveway repairs
  • No driveway repairs are anticipated
• Restore the boulevard in any impacted areas
  • 4 inches topsoil, seed and hydro-mulch
• Place the final lift of bituminous pavement
• Place all pavement marking, must wait 72 hours after paving

 
Preliminary Schedule Remaining

• Council Approves Plans and Specifications / Authorizes Ad for Bids
  • March 22, 2022
• Staff Receives Bids
  • April 18, 2022
• Council Awards Contract to the lowest responsible bidder
  • April 26, 2022
• Contractor begins construction
  • June 2022
• Contractor Substantially Completes construction
  • September 2, 2022
• Contractor Final Completion (project clean up, punch list created)
  • September 30, 2022

 
Final plans are not attached to this case to prevent potential bidders from downloading plans attached to the case to prepare and submit their bids, rather than purchasing the plans through QuestCDN, the electronic bidding software used by the City of Ramsey. This ensures all bidders are bidding off the same set of plans, and all bidders are notified of any plan revisions (addenda) issued during the bidding process. Attached is the title sheet showing the scope of the improvements, as well as a plan sheet showing the typical sections, which includes information on the proposed pavement section. Plans are available upon request from the City Engineer.

Staff estimates up to 10 minutes will be needed to present this case and respond to questions.

Alternative #1 – Motion recommending City Council approving plans and specifications and authorizing advertisement for bids for Wood Pond Hills 2^nd – 5^th Street Reconstructions, Improvement Project #22-06.
 
Alternative #2 – Motion of other.

Funding for this improvement is proposed to come from Pavement Management Funds, Stormwater Utility Funds, MCES I/I Grant Funds, Sanitary Sewer Utility Funds, and Watermain Utility Funds.
 
Staff has completed an estimate based on the final plans and anticipated 2022 construction costs, with a total estimated project cost of $622,832.65, which includes 23-percent indirect costs for administrative, engineering, finance, and legal costs.
 

• Street Construction Costs       $489,068.01
• Storm Sewer Costs                     $5,700.00
• Sanitary Sewer Costs                 $9,600.00
• Watermain Costs                        $2,000.00
• Indirect Costs                          $116,464.64
• Total Estimated Project Costs $622,832.65

Staff recommends Alternative #1

Motion recommending City Council approving plans and specifications and authorizing advertisement for bids for Wood Pond Hills 2^nd – 5^th Street Reconstructions, Improvement Project #22-06.