Dam / Spillway


Date: 2013

The Bonneville Erosion Repairs Project consisted of repair of 10 scour areas and a section of apron area within the aging Bonneville Spillway Stilling Basin. Work was heavily dependent on divers, with work occuring...

Date: 2013

Heavy lift services, fabrication and dive platform

Date: 2013

The purpose of this project was to significantly decrease the amount of water entering the powerhouse
through failed monolith waterstops by repairing the waterstops in the three key areas:
(1) Roadway/...

Date: 2012

J.E. McAmis removed cobbles and boulders from within nine different downstream bays of the Bonneville Dam Spillway Stilling Basin. This work was performed utilizing a rotating hydraulic...