Schoharie Reservoir Low Level Outlet Microtunnel

As part of a major infrastructure project at the Schoharie Reservoir in Gilboa, New York, Stiver Engineering provided a variety of services for a low-level outlet designed to release water downstream into Schoharie Creek to facilitate dam maintenance and emergency response, mitigate flood risk, and enhance downstream habitat for fish and wildlife. The work includes…

project image

Parmer Lane Wastewater Tunnel Interceptor

Stiver Engineering performed analysis and design work for rock anchors and HSS steel frames for a 44.5-inch diameter pipe support inside a 96-inch diameter tunnel. The supports were designed for critical load combinations generated from buoyant forces and self-weight of the pipe.

Mill Creek Drainage Relief Tunnel Project

Mill Creek Drainage Relief Tunnel Project

The Mill Creek Drainage Relief Tunnel is a construction project that will bring needed infrastructure improvement to east Dallas, Texas. It will include 26,385 linear feet of tunneling at a 30-foot finished diameter with eight intake shafts and six lateral tunnels excavated by roadheader or excavators/breakers. The tunnel is being driven through Austin chalk by…

Waller Creek – Waterloo Park Project

Waller Creek – Waterloo Park Project

The Waterloo Park project, Austin, Texas, specified that the flood waters stretching from Waterloo Park to Lady Bird Lake be diverted 70 feet below ground through a concrete shaft and tunnel to be discharged into Lady Bird Lake 1 mile downstream. The project removed an estimated 50 acres from the floodplain in Downtown Austin. Stiver…