An extensive long-term project to build a gravity-feed sewer system is placing Lake Havasu City, AZ, in a good position to protect the environment while accommodating future growth. Prior to 1964, ...

Sewer network design optimisation is an interdisciplinary field that seeks to establish cost‐effective and hydraulically robust system configurations in urban drainage and sanitary services.

Structural design changes accommodated the ring beam system to stabilize the tunnel for the first 165 ft. Beyond that distance, the original wall of the ORI was restored by installing new rebar.