Tyler Pond Trestle

Nestled between two defunct factories sits a narrow, body of water named Tyler Pond that was constructed to hold water for fire emergencies at the nearby manufacturing plants. Two sanitary sewer mains, a 24-inch gravity sewer and a 36-inch force main, were constructed more than 40 years ago supported over the pond by two timber trestle bridges. Spicer Group conducted a structural analysis of the trestle bridges which had experienced numerous structural failures throughout the years and other than minor maintenance, had not been significantly rehabilitated since construction. Spicer then developed a solution to bury the utilities. This project coincided with another to drain the pond and decommission the dam at the eastern end of it. Spicer designed a 12-foot-tall, 34-foot-wide precast concrete arched culvert structure that spans most of the width of the pond. Once the culvert was built after the pond was drained, both sanitary sewer mains were buried on top of the culvert.