5.11.
CC Regular Session
- Meeting Date:
- 03/28/2023
- Submitted For:
- Bruce Westby
- By:
- Joe Feriancek, Engineering/Public Works
Information
Title
Adopt Resolution #23-070 Accepting Stabilized Full-Depth Reclamation Design Proposals for Improvement Project #23-04, 167th Avenue Reconstruction
Purpose/Background:
Purpose:
The purpose of this case is to adopt Resolution #23-070 accepting stabilized full-depth reclamation design proposals for Improvement Project #23-04, 167th Avenue Reconstruction.
Background:
The current 2022 – 2031 10-Year Capital Improvement Plan (CIP) proposes the reconstruction of 167th Avenue between Nowthen Boulevard and Trunk Highway 47 in 2023. Bolton & Menk was hired to prepare final plans and specifications for these improvements.
To meet the required MSA design standards, several pavement sections were considered. Stabilized Full-Depth Reclamation (SFDR) was determined to be the most cost-effective method of reconstruction. This process involves reclamation (grinding in-place) of the existing bituminous pavement plus a portion of the underlying aggregate base. Excess reclaimed material is then removed as needed so the new pavement will match into existing shoulders, driveways, and cross streets. The remaining material receives liquid asphalt emulsion, which is then mixed in, rolled and compacted. Once compacted, the SFDR can be opened up to traffic, and gains strength with the further compaction of vehicle traffic.
The City has recently completed an SFDR project on Sunwood Drive between Ramsey Boulevard and Bunker Lake Boulevard and Variolite Street between Alpine Drive and 173rd Avenue, both with excellent results. Stabilizing the reclamation allows for a thinner overall pavement section, avoiding the need to excavate below the existing aggregate base to make costly subgrade corrections. Staff is confident that the SFDR process will provide as long of a life for the new pavement section as a full reconstruction with subgrade corrections would, but at a significantly lower cost.
To be eligible for Municipal State Aid (MSA) funding, MSA review and approval must be complete before opening bids for these improvements. The SFDR mix design is a requirement prior to MSA final approval. Both firms indicated it will take approximately 2 months from the time authorization is given to produce the final SFDR mix design, as both field work and extensive lab work is required. Because of the design timeframe, starting this work is critical to keep the 167th Avenue reconstruction on schedule for completion in 2023.
Quotes received for the Stabilized Full-Depth Reclamation Design are below:
Braun Intertec submitted the lowest total responsible quote. Based on the submitted quotes, Staff recommends accepting the proposals for stabilized full-depth reclamation mix design services from Braun Intertec.
The purpose of this case is to adopt Resolution #23-070 accepting stabilized full-depth reclamation design proposals for Improvement Project #23-04, 167th Avenue Reconstruction.
Background:
The current 2022 – 2031 10-Year Capital Improvement Plan (CIP) proposes the reconstruction of 167th Avenue between Nowthen Boulevard and Trunk Highway 47 in 2023. Bolton & Menk was hired to prepare final plans and specifications for these improvements.
To meet the required MSA design standards, several pavement sections were considered. Stabilized Full-Depth Reclamation (SFDR) was determined to be the most cost-effective method of reconstruction. This process involves reclamation (grinding in-place) of the existing bituminous pavement plus a portion of the underlying aggregate base. Excess reclaimed material is then removed as needed so the new pavement will match into existing shoulders, driveways, and cross streets. The remaining material receives liquid asphalt emulsion, which is then mixed in, rolled and compacted. Once compacted, the SFDR can be opened up to traffic, and gains strength with the further compaction of vehicle traffic.
The City has recently completed an SFDR project on Sunwood Drive between Ramsey Boulevard and Bunker Lake Boulevard and Variolite Street between Alpine Drive and 173rd Avenue, both with excellent results. Stabilizing the reclamation allows for a thinner overall pavement section, avoiding the need to excavate below the existing aggregate base to make costly subgrade corrections. Staff is confident that the SFDR process will provide as long of a life for the new pavement section as a full reconstruction with subgrade corrections would, but at a significantly lower cost.
To be eligible for Municipal State Aid (MSA) funding, MSA review and approval must be complete before opening bids for these improvements. The SFDR mix design is a requirement prior to MSA final approval. Both firms indicated it will take approximately 2 months from the time authorization is given to produce the final SFDR mix design, as both field work and extensive lab work is required. Because of the design timeframe, starting this work is critical to keep the 167th Avenue reconstruction on schedule for completion in 2023.
Quotes received for the Stabilized Full-Depth Reclamation Design are below:
| STABILIZED FULL-DEPTH RECLAMATION MIX DESIGN PROPOSAL | ||
| Project | Braun Intertec | American Engineering Testing |
| 167th Avenue Reconstruction | $18,065.00 | $20,630.00 |
Braun Intertec submitted the lowest total responsible quote. Based on the submitted quotes, Staff recommends accepting the proposals for stabilized full-depth reclamation mix design services from Braun Intertec.
Notification:
If City Council awards a contract for stabilized full-depth reclamation mix design, City Staff would send notification letters to residents in the impacted area, giving notice that pavement coring crews will be present, and the scope of the services being provided at this time.
Observations/Alternatives:
Observations:
Though initial project start will be delayed by several weeks using the SFDR method, the construction process will generally be less complicated and quicker than other street reconstruction methods. The ultimate project completion time is not anticipated to be delayed by using the SFDR method, and overall impacts to the traveling public during construction will be minimized.
Alternatives:
Motion to adopt Resolution #23-070 accepting stabilized full-depth reclamation design proposals for Improvement Project #23-04, 167th Avenue Reconstruction.
Though initial project start will be delayed by several weeks using the SFDR method, the construction process will generally be less complicated and quicker than other street reconstruction methods. The ultimate project completion time is not anticipated to be delayed by using the SFDR method, and overall impacts to the traveling public during construction will be minimized.
Alternatives:
Motion to adopt Resolution #23-070 accepting stabilized full-depth reclamation design proposals for Improvement Project #23-04, 167th Avenue Reconstruction.
Funding Source:
Funding for this work is proposed to come from Municipal State Aid (MSA) Funds. Staff estimates overall project cost savings of $300,000 by using the SFDR design method.
Recommendation:
Staff recommends adopting Resolution #23-070 accepting stabilized full-depth reclamation design proposals for Improvement Project #23-04, 167th Avenue Reconstruction.
Action:
Adopt Resolution #23-070 accepting stabilized full-depth reclamation design proposals for Improvement Project #23-04, 167th Avenue Reconstruction.
Attachments
Form Review
| Inbox | Reviewed By | Date |
|---|---|---|
| Bruce Westby | Bruce Westby | 03/28/2023 03:33 PM |
| Brian Hagen | Brian Hagen | 03/28/2023 04:13 PM |
- Form Started By:
- Joe Feriancek
- Started On:
- 03/28/2023 03:14 PM
- Final Approval Date:
- 03/28/2023