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Presentation East 112th Avenue and Second Creek
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Summary and Background Information:
112th Avenue has been a challenge for a number of years. Originally, the plan was to improve the segment between Highway 2 and Chambers Road when the new recreation center was to be built in the future Second Creek Park.
As the City’s design team moved into design they concluded that trying to build the recreation center in the future park would be far too complicated and expensive. As a result, the decision was made to acquire property outside of the future park and Parcel O was purchased from Catellus (Turnberry North).
The Bison Ridge Recreation Center was built on Parcel O and improvements were made to the northern segment of Highway 2, Potomac Street, and the western segment of 112th Avenue (Highway 2 to Blackhawk) to serve Bison Ridge. Work on the rest of 112th was deferred due to the complexity of interlocking issues surrounding Second Creek and its flood plain. Oakwood and the Reunion Metro District approached the City about designing improvements to 112th Avenue between Blackhawk and Tower Road. The Reunion Metro District proposed tackling 112th Avenue in three phases. Phase 1 is the intersection of Chambers Road and 112th east to Parkside Drive. Phase 2 is Blackhawk to Chambers. Phase 3 is Parkside Drive to Tower Road. This phasing was determined due to the order of development planned for the adjoining vacant land.
Phase 1 has been designed and bid. The draft IGA regarding the cost share between the City, South Adams County Water and Sanitation District, and the Reunion Metro District will be presented to City Council on November 4 for action. 112th Phase 2 is broken down into four sub-phases. Phase A involves restoring the Second Creek channel. Phase B will build a new segment of canal for the O’Brian Canal incorporating the crossing for Second Creek and a weir structure to allow the O’Brian to capture the first 250 cfs of water in Second Creek and bypassing the rest to remain in the creek. Phase C will build the embankment and regional detention pond for flood control on Second Creek. Phase D is the construction and paving of 112th Avenue on top of the embankment.
Between a $3 million NRDS grant, $6.2 million of 2K funds remaining in the 2K projects fund, $1.8 million of Second Creek Basin Fee funds, and $1 million of CIPP funds there is nearly enough money to construct sub-phases A and B. The challenge will be finding the money for sub-phases C and D, but those phases are several years in the future.
Does Council want to proceed with this plan for phasing the work on Second Creek and 112th Avenue?
Staff Responsible (Department Head): DCM Roger Tinklenberg
Staff Member Presenting: DCM Roger Tinklenberg
Financial Impact: $12.1 million
Funding Source: NRDS grant, 2K projects fund, CIPP
Staff Recommendation: Proceed with the phasing plan for 112th Avenue and Second Creek
Suggested Motion: No motion at the Study Session; staff needs Council consensus and direction.