In 2005, Welch Comer assisted the City of Post Falls with the design and construction phase services of the Highway 41 sanitary sewer interceptor. This $1.9 million construction project was financed through a local improvement district, for which Welch Comer also assisted with the LID formation and confirmation process.
Sewer Mainline was constructed at depths greater than 20 feet.
Utility coordination was a key design element.