Mayes County Courthouse

Pryor, Oklahoma

BKL designed a new 70,000 sq. ft, three-story courthouse building that contains four full-size courtrooms with judicial chambers, as well as all county administrative offices, including the sheriff. The interior public spaces include spacious lobbies and terrazzo floors with solid surface wainscoting. The exterior is constructed of brick masonry and cast stone exterior walls.

The new courthouse was constructed around the existing building in the courthouse square. Once construction was complete, the existing building was demolished to make room for parking and a landscaped lawn for the facility.  

This building incorporates a geothermal heat pump system that provides economical heating and cooling for the building. In addition, a unique underground storage system was added for on-site stormwater detention. 

The site selected for the courthouse gave limited space for potential drainage ponds. This coupled with an existing storm sewer too shallow to meet the county’s needs created major engineering constraints on the project. To solve this, BKL designed a unique concrete modular underground detention system to be placed under the lawn in front of the courthouse. This created an additional ease of construction through configuring the system to fit in the limited space available. The system is designed to be able to contain an entire five-year storm in the event of outflow to the storm sewer system.

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