11800 South Sewer Upsizing Project

The Jordan Basin Improvement District (JBID) is increasing wastewater capacity along 11800 South as part of a Capital Improvement Project serving communities in Salt Lake County, Utah. Identified through the District’s flow modeling and System Evaluation and Capacity Assurance Plan (SECAP), the existing sewer line along this corridor was nearing capacity. The project includes upsizing approximately 19,750 linear feet of pipeline to 30-inch and 36-inch diameters to accommodate continued regional growth. Bowen, Collins, and Associates is leading the design with Red Pine Construction serving as the general contractor.

To ensure the long-term performance of the upgraded system, JBID requires acid-resistant sanitary sewer manholes capable of withstanding hydrogen sulfide exposure and corrosive wastewater conditions. To meet this standard, NWPX Geneva supplied 74 Perfect Lined Manhole Systems for the project.

The manholes range from 60-inch to 96-inch diameters, with depths from 11.34 feet to 27.94 feet, and were manufactured with custom inlet and outlet configurations to accommodate pipe sizes from 8 inches to 48 inches. Each structure consists of reinforced precast concrete manufactured in accordance with ASTM C478 and lined with a high-performance synthetic polymer liner that protects against Microbial Induced Corrosion (MIC).

The Perfect Lined Manhole was selected as a cost-effective alternative to polymer manholes while delivering permanent corrosion resistance and structural strength for deep burial and high-traffic conditions along the 11800 South corridor. The liner is cast integrally into each component to provide strong backpressure and pullout resistance. Watertight joints utilizing SDV-Seal manhole gaskets eliminate the need for field welding, simplifying installation and reducing risk of inflow and infiltration. Corrosion-resistant grade rings complete the system to ensure long-term durability from base to lid.

With 74 lined manhole structures of varying diameters and depths required for the project, careful manufacturing planning and coordination were essential. The NWPX Geneva team worked closely with the project engineer and contractor to align production and delivery with the construction schedule. This coordination ensured each manhole was built to specification and delivered on time to support steady progress and meet tight project timelines.

By pairing increased pipeline capacity with permanently protected manhole structures, JBID is strengthening critical wastewater infrastructure to reliably serve both current demand and future growth for residents and businesses in Salt Lake County.