5.2.
Public Works Committee
- Meeting Date:
- 08/21/2018
- By:
- Bruce Westby, Engineering/Public Works
Title:
Consider City Council Recommendation to Review Feasibility Report and Order Public Input Meeting for Improvement Project #18-02, HY-10 Ramsey Street Reconstructions
Purpose/Background:
Purpose:
The purpose of this case is to consider a recommendation to the City Council to review the Feasibility Report and order a Public Input Meeting for Improvement Project #18-02, HY-10 Ramsey Street Reconstructions.
Background:
City Improvement Project No. 18-02 proposes to reconstruct streets within the HY-10 Ramsey neighborhood including 146th Avenue, 147th Avenue, and Ferret Street. The streets total approximately 1,400 linear feet (0.27 miles) in length. A map showing the location and scope of the proposed improvements is included as Figure 1 in Appendix A of the attached Draft Feasibility Report.
The streets were constructed in 1988 with bituminous curb to a width of 40 feet from face-of-curb to face-of-curb, and are generally centered within a 66-foot wide right-of-way. However, during the Highway 10/Armstrong Interchange project the west end of 146th Avenue was reconstructed and a temporary cul-de-sac was constructed.
The storm sewer system consists of openings in the bituminous curb at the north end of the Ferret Street cul-de-sac and the east end of the 146th Avenue cul-de-sac. Utility easements exist north of Ferret Street and along the northern boundary of the eastern Ferret Street cul-de-sac which has shallow ditches leading towards Armstrong Boulevard. Storm runoff from 147th Avenue is collected in catch basins placed as part of the 2012 Sunwood Drive re-alignment project, and is carried under Armstrong Boulevard to existing regional ponds.
The existing bituminous pavement section ranges from 1.6 to 6.1 inches thick, with an average thickness of 2.9 inches, and the aggregate base ranges from 4.3 to 15.5 inches thick, with an average thickness of 9.7 inches. This was determined from Ground Penetrating Radar (GPR) analysis performed by Braun Intertec in 2017, as well as from field observations and record plan documents. Copies of Braun Intertec’s GPR results are included in Appendix C of the attached Draft Feasibility Report. The pavement section was built on sandy subgrade material generally considered suitable for pavement support.
City staff evaluates and rates the condition of pavement sections on all City streets on an annual basis using the Pavement Surface Evaluation and Rating (PASER) system. In the summer of 2017, the pavement section of the above referenced street segments were rated with a PASER rating of 2 which indicates these streets require complete reconstruction. City staff patch the streets at least once per year, particularly before winter so the street can be plowed without further damaging the pavement in the process. Pictures of the street are located in Appendix A of the attached Draft Feasibility Report.
On July 11, 2017, the City Council adopted Resolution #17-07-170 authorizing the preparation of a Feasibility Report for the reconstruction of HY-10 Ramsey. These streets were originally included in the City’s CIP as proposed 2015 overlay improvements. However, the overlay work was delayed when construction of the Highway 10 & Armstrong Boulevard Interchange was funded. Then following completion of the Interchange, the pavement was re-evaluated and Staff determined it would be best to reconstruct these streets in the future. This project is now listed in the current 10-year CIP as a total reconstruction.
Staff has not yet discussed the proposed improvements with local property owners. However, staff is proposing to schedule a public information meeting on September 13, 2018 for the purpose of explaining the proposed improvements and assessments in more detail, and to gather public input on the project, including any information which should be explored in more detail during development of plans and specifications. Staff will present the public input to Council during the public hearing.
Proposed improvements include reconstructing the existing bituminous pavement section using the Full Depth Reclamation (FDR) process. This process generally involves reclaiming the entire existing bituminous pavement section, along with an inch or two of the existing aggregate base material. A portion of this reclaimed (ground and mixed) material would then be spread and compacted on top of the reshaped and compacted existing subgrade and/or aggregate base. Three and one-half inches of bituminous pavement would be installed on top of a minimum of 6 inches of aggregate base composed of existing aggregate base and FDR reclaim material. This pavement section would meet the City of Ramsey’s standard pavement design. Though the design strength of this pavement design is less than a typical industrial park pavement design, it should provide a useful life of at least 30 years based on the life achieved by the existing pavement section. Staff also believes this development will re-develop within the next 10 to 20 years, and that new streets will be required as a result of re-development.
This proposed project was brought to the Development Review Committee on May 22, 2018 for Staff comment on design alternatives based on potential future development of the HY-10 Ramsey subdivision. Based on the uncertainty of future development, staff felt it would be most cost effective to bring the bituminous pavement up to usable standards, extend utilities and concrete curb and gutter along 147th Avenue only, and not to connect the streets to adjacent developments at this time.
The engineer’s opinion of probable costs including streets, drainage, and public water utilities is $ 290,000. Estimated costs include 10-percent contingency costs plus 23-percent indirect costs for administrative, engineering, finance and legal costs. A summary of the engineer’s opinion of probable costs is included in Appendix B of the attached Draft Feasibility Report.
The project is proposed to be funded using a combination of special assessments to benefitting properties, street reconstruction bond proceeds, and stormwater utility funds. Sewer and Water Utility Funds would be used to pay for any public utility improvements.
Nine (9) parcels have been identified as receiving special benefit from the improvements. Four of the parcels have permanent structures, and the other five are undeveloped. Several of these parcels are currently listed for sale, including two City-owned parcels. These parcels are identified in the preliminary Assessment Map and Roll which are attached in Appendix C of the attached Draft Feasibility Report.
Assessments were calculated using the area method, which is typically used for commercial applications. Staff recommends ordering a special benefit consultation report for this project to verify the proposed assessment amount will not exceed the benefit to the properties. If the report concludes the benefit to the properties is less than the proposed preliminary assessment rate, Staff will then propose to lower the assessment rate accordingly during the Assessment Hearing, which is proposed for October 8, 2019. If the report verifies the assessment rate as proposed is justified, Staff will propose to adopt the final assessment roll using the rate as preliminarily proposed.
This project would best be constructed as a stand-alone project and is necessary, feasible, and cost-effective from an engineering standpoint, and can be constructed as proposed herein.
The purpose of this case is to consider a recommendation to the City Council to review the Feasibility Report and order a Public Input Meeting for Improvement Project #18-02, HY-10 Ramsey Street Reconstructions.
Background:
City Improvement Project No. 18-02 proposes to reconstruct streets within the HY-10 Ramsey neighborhood including 146th Avenue, 147th Avenue, and Ferret Street. The streets total approximately 1,400 linear feet (0.27 miles) in length. A map showing the location and scope of the proposed improvements is included as Figure 1 in Appendix A of the attached Draft Feasibility Report.
The streets were constructed in 1988 with bituminous curb to a width of 40 feet from face-of-curb to face-of-curb, and are generally centered within a 66-foot wide right-of-way. However, during the Highway 10/Armstrong Interchange project the west end of 146th Avenue was reconstructed and a temporary cul-de-sac was constructed.
The storm sewer system consists of openings in the bituminous curb at the north end of the Ferret Street cul-de-sac and the east end of the 146th Avenue cul-de-sac. Utility easements exist north of Ferret Street and along the northern boundary of the eastern Ferret Street cul-de-sac which has shallow ditches leading towards Armstrong Boulevard. Storm runoff from 147th Avenue is collected in catch basins placed as part of the 2012 Sunwood Drive re-alignment project, and is carried under Armstrong Boulevard to existing regional ponds.
The existing bituminous pavement section ranges from 1.6 to 6.1 inches thick, with an average thickness of 2.9 inches, and the aggregate base ranges from 4.3 to 15.5 inches thick, with an average thickness of 9.7 inches. This was determined from Ground Penetrating Radar (GPR) analysis performed by Braun Intertec in 2017, as well as from field observations and record plan documents. Copies of Braun Intertec’s GPR results are included in Appendix C of the attached Draft Feasibility Report. The pavement section was built on sandy subgrade material generally considered suitable for pavement support.
City staff evaluates and rates the condition of pavement sections on all City streets on an annual basis using the Pavement Surface Evaluation and Rating (PASER) system. In the summer of 2017, the pavement section of the above referenced street segments were rated with a PASER rating of 2 which indicates these streets require complete reconstruction. City staff patch the streets at least once per year, particularly before winter so the street can be plowed without further damaging the pavement in the process. Pictures of the street are located in Appendix A of the attached Draft Feasibility Report.
On July 11, 2017, the City Council adopted Resolution #17-07-170 authorizing the preparation of a Feasibility Report for the reconstruction of HY-10 Ramsey. These streets were originally included in the City’s CIP as proposed 2015 overlay improvements. However, the overlay work was delayed when construction of the Highway 10 & Armstrong Boulevard Interchange was funded. Then following completion of the Interchange, the pavement was re-evaluated and Staff determined it would be best to reconstruct these streets in the future. This project is now listed in the current 10-year CIP as a total reconstruction.
Staff has not yet discussed the proposed improvements with local property owners. However, staff is proposing to schedule a public information meeting on September 13, 2018 for the purpose of explaining the proposed improvements and assessments in more detail, and to gather public input on the project, including any information which should be explored in more detail during development of plans and specifications. Staff will present the public input to Council during the public hearing.
Proposed improvements include reconstructing the existing bituminous pavement section using the Full Depth Reclamation (FDR) process. This process generally involves reclaiming the entire existing bituminous pavement section, along with an inch or two of the existing aggregate base material. A portion of this reclaimed (ground and mixed) material would then be spread and compacted on top of the reshaped and compacted existing subgrade and/or aggregate base. Three and one-half inches of bituminous pavement would be installed on top of a minimum of 6 inches of aggregate base composed of existing aggregate base and FDR reclaim material. This pavement section would meet the City of Ramsey’s standard pavement design. Though the design strength of this pavement design is less than a typical industrial park pavement design, it should provide a useful life of at least 30 years based on the life achieved by the existing pavement section. Staff also believes this development will re-develop within the next 10 to 20 years, and that new streets will be required as a result of re-development.
This proposed project was brought to the Development Review Committee on May 22, 2018 for Staff comment on design alternatives based on potential future development of the HY-10 Ramsey subdivision. Based on the uncertainty of future development, staff felt it would be most cost effective to bring the bituminous pavement up to usable standards, extend utilities and concrete curb and gutter along 147th Avenue only, and not to connect the streets to adjacent developments at this time.
The engineer’s opinion of probable costs including streets, drainage, and public water utilities is $ 290,000. Estimated costs include 10-percent contingency costs plus 23-percent indirect costs for administrative, engineering, finance and legal costs. A summary of the engineer’s opinion of probable costs is included in Appendix B of the attached Draft Feasibility Report.
The project is proposed to be funded using a combination of special assessments to benefitting properties, street reconstruction bond proceeds, and stormwater utility funds. Sewer and Water Utility Funds would be used to pay for any public utility improvements.
Nine (9) parcels have been identified as receiving special benefit from the improvements. Four of the parcels have permanent structures, and the other five are undeveloped. Several of these parcels are currently listed for sale, including two City-owned parcels. These parcels are identified in the preliminary Assessment Map and Roll which are attached in Appendix C of the attached Draft Feasibility Report.
Assessments were calculated using the area method, which is typically used for commercial applications. Staff recommends ordering a special benefit consultation report for this project to verify the proposed assessment amount will not exceed the benefit to the properties. If the report concludes the benefit to the properties is less than the proposed preliminary assessment rate, Staff will then propose to lower the assessment rate accordingly during the Assessment Hearing, which is proposed for October 8, 2019. If the report verifies the assessment rate as proposed is justified, Staff will propose to adopt the final assessment roll using the rate as preliminarily proposed.
This project would best be constructed as a stand-alone project and is necessary, feasible, and cost-effective from an engineering standpoint, and can be constructed as proposed herein.
Timeframe:
Staff anticipates approximately 15 minutes will be required to present and discuss this case.
Observations/Alternatives:
Observations:
Staff originally intended to conduct a public information meeting with benefiting property owners of HY-10 Ramsey while preparing the Feasibility Report to explain the purpose and need for the proposed improvements, the scope of the improvements, estimated costs, the proposed funding program, and proposed schedule. However, due to growing uncertainties surrounding the future use of adjacent parcels, Staff determined it would be better to complete a draft Feasibility Report before scheduling and conducting the public input meeting to help keep discussions focused.
On August 28th Staff plans to review the Feasibility Report with Council, then ask Council to order a public input meeting for 9 AM on September 13th. This will allow Staff to gather feedback on the project from benefiting property owners, which will then be presented to Council at their September 25th regular meeting, after which Council will be asked to accept the Feasibility Report and order a Public (Improvement) Hearing for October 9th.
Public Works Committee comments and recommendations will be included in the Staff reports to Council.
Alternatives:
Alternative #1– Motion approving a recommendation to City Council to review the Draft Feasibility Report and order a Public Input Meeting for 9 AM on Thursday, September 13, 2018, for Improvement Project #18-02, HY-10 Ramsey Street Reconstructions.
Alternative #2 – Motion of other.
Staff originally intended to conduct a public information meeting with benefiting property owners of HY-10 Ramsey while preparing the Feasibility Report to explain the purpose and need for the proposed improvements, the scope of the improvements, estimated costs, the proposed funding program, and proposed schedule. However, due to growing uncertainties surrounding the future use of adjacent parcels, Staff determined it would be better to complete a draft Feasibility Report before scheduling and conducting the public input meeting to help keep discussions focused.
On August 28th Staff plans to review the Feasibility Report with Council, then ask Council to order a public input meeting for 9 AM on September 13th. This will allow Staff to gather feedback on the project from benefiting property owners, which will then be presented to Council at their September 25th regular meeting, after which Council will be asked to accept the Feasibility Report and order a Public (Improvement) Hearing for October 9th.
Public Works Committee comments and recommendations will be included in the Staff reports to Council.
Alternatives:
Alternative #1– Motion approving a recommendation to City Council to review the Draft Feasibility Report and order a Public Input Meeting for 9 AM on Thursday, September 13, 2018, for Improvement Project #18-02, HY-10 Ramsey Street Reconstructions.
Alternative #2 – Motion of other.
Funding Source:
See funding program in attached Feasibility Report.
Recommendation:
Staff recommends alternative #1.
Action:
Motion approving a recommendation to City Council to review the Draft Feasibility Report and order a Public Input Meeting for 9 AM on Thursday, September 13, 2018, for Improvement Project #18-02, HY-10 Ramsey Street Reconstructions.
Attachments
Form Review
| Inbox | Reviewed By | Date |
|---|---|---|
| Grant Riemer | Grant Riemer | 08/16/2018 02:06 PM |
| Kurt Ulrich | MaryJo Warner | 08/16/2018 03:52 PM |
- Form Started By:
- Bruce Westby
- Started On:
- 08/13/2018 11:22 AM
- Final Approval Date:
- 08/16/2018