Olmsted Lock and Dam, Ohio River

Project:

Two 30.5m x 365.8m lock chambers and 670m long dam with 220 steel wicket gates to replace aging lock and dam facilities

System:1“ grade 150 (26.5 mm Ø) DYWIDAG form tie system (wobble anchor, she bolts, wing nuts, batter washers)

Application:Support of climbing formwork for the lock chamber walls

Special Features:High-capacity DYWIDAG she bolt systems allowed wide spacing of the form ties and faster jumping of the forms resulting in significant labour saving; very light form tie system (35% lighter than conventional ties)

Construction Period:February 1997 - 2006

Owner

U.S. Army Corps of Engineers

Structural Design

Sverdrup Civil Inc. (dam), US Army Corp of Engineers (lock chambers)

General Contractor

ADL (The Lane Construction Co.)

DSI Services

Supply of 59 t of DYWIDAG form ties, technical assistance for formwork applications

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