Milwaukee is spending $100 million on a metropolitan flood-control project, hoping to avoid future flood damages that have cost that much since 1997. The centerpiece of the plan is a 17-ft-diameter, half-mile-long tunnel that will drain up to 3,405 cu ft per second of water from a flood-prone creek into a 315-million-gallon detention basin. Slide Show Photo: Mike Larson Tunnel diameter is more than 17 ft, designed to quickly channel stormwater to detention basin. When heavy rain causes nearby Underwood Creek to overflow, the new tunnel will drain the excess water to a 65-acre engineered detention basin that will slowly
The market is generally healthy and steadily growing, and margins are up for large specialty contractors. Further, advances in design tools and owner demand for collaboration are giving subcontractors a seat at the table early on in projects.