I-90 Floating Bridge Retrofit

I-90 HOMER HADLEY BRIDGE STRENGTHENING In 2008 voters approved a light rail expansion across the I-90/Homer Hadley Floating Bridge.  Sound Transit and the WA-DOT sought post-tensioning pontoon strengthening procedures to enable the I-90 to carry the rail. Although...

Oregon’s Crooked River Bridge Makes U.S. Construction History

Oregon’s Crooked River Bridge Makes U.S. Construction History Spanning the sheer walls of a 500-foot-high, 410-foot-wide river canyon with a concrete arch bridge posed unique construction challenges when first attempted in 2000-2001 by Kiewit Pacific Co. Schwager...

New Benicia-Martinez Bridge Opens to Traffic

New Benicia-Martinez Bridge Opens to Traffic Construction of the new $1.2 billion Benicia-Martinez Bridge began in late 2001 by general contractor Kiewit Pacific Company and was opened to traffic on August 25, 2007. This major U.S. segmental box girder bridge carries...

Antlers Bridge (Segmental Cast-in-Place Cantilever)

Antlers Bridge (Segmental Cast-in-Place Cantilever) This challenging structure was constructed on a new parallel alignment just east of the existing bridge, which spans over the Sacramento River arm of Shasta Lake. The new 5-span, cast-in-place prestressed segmental...