OPAC Consulting Engineers

Design Services


Selected OPAC Design Projects: (31 Total, 5 on this page)


Lake Redding Bridge - Design

Lake Redding Bridge

Design of a 5-span post-tensioned concrete arch bridge over the Sacramento River. The new bridge reflects and respects the adjacent Diestelhorst Bridge, a historic arch bridge of architectural significance.

Redding, California. Construction completed 1996

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Three Mile Slough and Steamboat Slough Bridges - Seismic Retrofit Design

Three Mile Slough and Steamboat Slough Bridges

Seismic retrofit for a vertical lift bridge and a bascule bridge in the Sacramento Delta.

Sacramento Delta, California. Design Completed 1995

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West Taiwan High Speed Rail Viaducts - Preliminary Design

West Taiwan High Speed Rail Viaducts

Development of an optimized structural concept for use in building 263 km of elevated high speed rail structures with typical span lengths of 25 to 30 meters.

Taiwan. Design completed 1994

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West Taiwan High Speed Rail Bridge - Preliminary Design

West Taiwan High Speed Rail Bridge

Design and rolling stock analysis of an aesthetically pleasing bridge to carry high speed rail trains across Provincial Highway No. 1 and the First Freeway at Hukou, Taiwan.

Hukou, Taiwan. Design completed 1993

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Ping Ding Steel Arch Bridge - Value Engineering and Design

Ping Ding Steel Arch Bridge

Design of a 60 m span steel arch bridge across a deep ravine in Taiwan. The composite deck consists of steel girders and a cast-in-place concrete slab.

Suburban Taipei, Taiwan. Design completed 1993

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