By Matt Roy, Independent Newsmedia
County officials announced imminent road closures as part of an ongoing three-phase project in and near Surprise.
The Flood Control District of Maricopa County enters the second phase of its 115th Ave & Union Hills Drive Drainage Improvements Project, which began in February 2017. As part of phase two, the intersection of 107th Avenue and Union Hills Drive will be closed May 4-20.
The effort is a partnership between FCDMC, Maricopa County Department of Transportation, city of Surprise and city of Peoria.
“The main goal of the project is to intercept flood water that enters the project area from the northeast and convey the water to the Agua Fria River via existing and improved channels and/or storm drains. The project is designed for the 100-year storm event,” according to project details published at the FCDMC website.
The project includes about two miles of storm drains, as well as basin improvements and channel improvements, with construction of maintenance roads adjacent to the project and other features and structures.
The first phase improved the existing Sun City Drain along 115th Avenue from the Agua Fria River north to Bell Road and widened the channel at the northeast corner of 115th Avenue and Bell Road to increase stormwater flow. The improvement meets the 100-year flood standard and aims to keep stormwater running under the road, not over, in the case of such an event.
Channel drainage was improved along 115th Avenue from Bell Road up to Union Hills Drive, while storm drains and catch basins were added at the intersections of 115th Avenue and Unions Hills and at 115th Avenue and Doodah Lane.
During the phase two closure, a system of storm drains will be installed along Union Hills from 111th east to 107th avenues and along 107th from Union Hills to Palm Tree Drive. Existing basins at the northwest and northeast corners of Union Hills and 111th Avenue will also be improved.
In the third phase, an existing earthen channel will be improved along Beardsley Road from 115th to 111th avenues, while a storm drain system will be added along 115th Avenue from Union Hills to Beardsley. A split-flow junction structure will be added at the northeast corner of Beardsley and 115th Avenue.
Utility relocations along Union Hills, as well as 111th and 107th avenues, are nearly completed.
Ritoch-Powell & Associates designed of the first two phases; Degan Construction, LLC is the construction contractor.
Completion of the project is anticipated this summer.
For more information, call the MCFCD 24-hour construction hotline at (602) 264-6416.