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A RESOLUTION AUTHORIZING AN INTERGOVERNMENTAL AGREEMENT WITH THE COLORADO DEPARTMENT OF TRANSPORTATION FOR RIGHT-OF-WAY ACQUISITION COST-SHARING FOR US85 AND 120TH AVENUE INTERCHANGE PROJECT
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Summary and Background Information:
The purpose of this resolution is to authorize the Mayor to enter into an IGA with CDOT for preconstruction activities and purchasing right-of-way for the US85 and 120th Avenue Interchange Project.
The City applied for and received a grant for preconstruction activities and purchasing right-of-way through the DRCOG 2020-2023 Transportation Improvement Program (TIP) process. The 2020-2023 TIP was adopted by the DRCOG board in August 2019.
Total funding for this phase of the project is $12.6M - which includes a DRCOG Grant of $8.7M, a CDOT contribution of $1M, and a local match of $2.9M (The local match consists of $1.25M each from Adams County and Commerce City, as well as $400K from Brighton). Once this IGA is approved, staff will be bringing forward additional IGA’s with Adams County and Brighton for their contributions to the project.
The proposed 120th/US85 interchange design is a six-lane diverging diamond with two bridge structures (over US85 and the Union Pacific Railroad). Ramps from US 85 will be constructed to 120th Avenue with operational improvements on adjacent arterials to improve interchange operations. The current cost estimate to construct the interchange is $90+ Million.
CDOT has completed the 30% design plans for the interchange. CDOT is still working on getting the Environmental Assessment (EA) and Finding of No Significant Impact (FONSI) approved through the Federal Highway Association (FHWA). We do not need to have the EA or FONSI approved to move forward with the right-of-way acquisitions. CDOT will be using their Right-of-Way Department to purchase the properties for the future interchange.
In 2020, CDOT and the City jointly applied for a Consolidated Rail Infrastructure & Safety Improvements ...
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