The reconstruction and expansion of County State Aid Highway (CSAH) 83 has been programmed by Scott County as part of their Transportation Improvement Program (TIP) in 2021. The proposed reconstruction is within City of Shakopee municipal limits and thus the city is required to participate in the cost of the reconstruction project per the county's funding policy (see attached). City staff has been coordinating with Scott County staff on preliminary design review and the county has prepared 99 percent plans and cost estimate.

The proposed reconstruction project would expand CSAH 83 from four lanes undivided to four lanes divided with center medians and turn lanes. The proposed project will also provide pedestrian trails and expand stormwater treatment for the roadway. As part of the project, all utility relocations (existing overhead) and new utility lines will be installed underground per the City of Shakopee Right-of-Way ordinance.

As part of the county funding policy, CSAH 83 is designated a Minor Arterial and thus the City of Shakopee is required to pay for 20 percent of Roadway Improvements, 50 percent for Landscaping and Aesthetics, 45 percent for Right-of-Way, 50 percent for Multi-Use Trails & Sidewalks and 100 percent for City Utilities. In addition, engineering and construction administration is based on the share of construction costs. Attached is the Preliminary Cost Estimate prepared by Scott County based on the 95 percent plans. 

Additionally, several modifications to the layout of CSAH 83 were identified in the Canterbury Commons Areawide Transportation Assessment, as needed to support the development of Canterbury Commons. These following improvements are proposed to be funded 100 percent by the Canterbury Tax Increment Funding:

• Right turn lane from southbound TH 169 to northbound CSAH 83 with traffic signal revisions
• Thru-lane and and turn-lane modifications under the TH 169 bridge
• Modifications to the full access and 3/4 access to Canterbury and Kin Properties
• Additional turn lanes to Unbridled Avenue
• Traffic signal at CSAH 83 and Unbridled Avenue

The following are several key points in the plan development and cost participation:

• The City of Shakopee's Capital Improvement Plan (CIP) contains the 12th Avenue East reconstruction project, CIF-20-014, project #10 (see attached CIP sheet). City and county staff have coordinated to incorporate the reconstruction of 12th Avenue east of CSAH 83 into the CSAH 83 expansion and reconstruction project. Including this work with the county project will save the city money by economies of scale, provide improved design and construction coordination and lesson the inconveniences of multiple projects on the adjacent property owners and motorists. City staff are currently working with the land owners adjacent to 12th Avenue to consolidate driveway access to improve the safety and efficiency of the roadway. City staff will bring the driveway consolidation portion of the project back to city council for future consideration as a standalone project.
     

• The City of Shakopee's Capital Improvement Plan (CIP) contains an Areawide Wayfinding System project, CIF-20-014, project #15 (see attached CIP sheet). City and county staff have coordinated to incorporate a digital message board into the digital messaging system(DMS) above the northbound lanes of CSAH 83 between the TH 169 ramp and 12th Avenue. This message board will direct motorist to Unbridled Avenue as the event entrance and proper use of the other lanes, and will be especially important during Canterbury events. Initial construction of the DMS sign is included in the cost participation breakdown and future maintenance will be governed by the transportation management system maintenance agreement between the city and Scott County.

• The county is proposing the closure of Secretariat Drive at CSAH83 to improve safety and efficiency of CSAH83, due to a lack of proper access spacing from both 12th Avenue and the TH 169 ramp interchange. The closure of Secretariat Drive will shift additional traffic to 12th Avenue where an eastbound to southbound right turn lane is proposed to be added at the 12th Avenue intersection with CSAH 83. The county is also proposing to build a culdesac at the end of Secretariat Drive to allow for turnaround of large vehicles, including city snowplows and fire trucks.

• The new roadway will feature several large medians that will have enhanced landscaping in the form of perennial plantings, specifically an array of different color lilies to enhance the aesthetics of CSAH 83. Future maintenance of the plantings will be the responsibility of the city.

• The county's policy is to construct 8-ft wide trails along roadway corridors unless they are designated regional trails, which would then be 10-ft per county policy. The trails along CSAH 83 are not designated as county regional trails, but the trail on the west side of the roadway is proposed to be 10-ft wide as part or the city's regional system.  As a result, the city would pay for the additional 2-ft of trail.

• Overhead utility lines along CSAH 83 will be reconstructed underground, per the City of Shakopee Right-of-Way ordinance. A portion of the overhead utility lines exist in easements owned by Shakopee Public Utilities and a portion of the cost to underground the overhead utility lines will be borne by the project, and are included in the right-of-way costs.

City staff concurs with the final proposed roadway layout (see attached) and cost participation breakdown for the CSAH 83 Expansion and Reconstruction Project. Attached is the Construction Cooperative Agreement outlining the terms of the project.

The City of Shakopee 2021 CIP has budgeted $5,665,000 for the project participation of CSAH 83 (see attached CIP sheet, CIF-21-007). The proposed city participation based on the 99% plan cost estimate falls within the budgeted amount.

The City of Shakopee 2021 CIP has also budgeted an additional $2,100,00 for project #10, which includes the reconstruction of 12th Avenue east of CSAH83, including driveway consolidation improvements (see attached CIP sheet, CIF-20-014). The same CIP sheet budgets an additional $250,000 for project #15, for construction of an areawide wayfinding system.

The CSAH83 project includes improvements that span three different city CIP projects. Costs for all three projects are included in the attached Construction Cooperative Agreement with Scott County. The table below shows the breakdown of each CIP project budget, estimated costs based on current design and the remaining budget. It should be noted that the Estimated Cost does not contain any contingency amount so a portion of the remaining budget excess would more than enough to cover any contingencies for the project.

*The 12th Avenue reconstruction project will have additional future project expenses related to consolidating driveways along 12th Avenue at CSAH 83. Additional costs and an updated budget will be brought to city council for future consideration.

**The Areawide Wayfinding system project will include some future additional expense related to static road signs to direct motorists around the Canterbury site. Additional costs and an updated budget will be brought to city council for future consideration.