Award Winning Bridges Current projects 2009/2010
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Smart Road Bridge, near Christiansburg, Virginia Bridge Award of Excellence from the American Segmental Bridge Institute (ASBI) Soaring over the Ellet Valley, Virginia's tallest bridge at 170 feet is part of the 5.7-mile Smart Road project that connects Virginia Tech with Blacksburg and Interstate 81. The 2,000 ft. long structure with 470 ft. main spans was built using the cast-in-place balanced cantilever construction method. In addition to the post-tensioning, AVAR supplied the form-travelers Owner: Virginia Department of Transportation Prime Contractor: PCL Civil Constructors, Inc. |
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Truckee River Bridge, California Award of Excellence from Portland Cement Association (PCA) The 1,500 ft. long bridge over the Truckee River carries traffic on State Route 267 bypassing the town of Truckee. The 7-span bridge features a cast-in-place, post-tensioned box girder with spans up to 230 ft. long. The parabolic haunches flow into the piers, resulting in a very elegant arch-like structure. Owner: Caltrans Prime Contractor: MCM Construction, Inc. |
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Seahawks Stadium, Seattle Excellence Award from the American Council of Engineering Companies The new Seahawks Stadium with a capacity of 72,000 spectators is covered with two roof structures that cover 70 percent of the seating area. Bottom cords of the 720 ft. long super trusses were post-tensioned with five large capacity tendons. Because tendons had to be designed to allow adjustment of prestressing force during the life of the structure and because of weight considerations, grease rather than cement/water grout was selected for corrosion protection. Owner: City of Seattle, Washington Prime Contractor: Turner Construction, Inc. |
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Big I Interchange I-15/I-40 Albuquerque, New Mexico Award of Excellence from the American Segmental Bridge Institute (ASBI) New Mexico's largest transportation project involving 45 bridges including eight post-tensioned pre cast segmental flyover ramps using a total of 662 segments. Owner: Department of Transportation, New Mexico Prime Contractor: Kiewit Pacific Co. AVAR system supplied by: SDI, San Jose, CA |
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Carquinez Bridge (Al Zampa Memorial Bridge), Vallejo/Crockett, California AGC Award for Meeting the Challenge of the Difficult Job in Heavy Engineering California's first suspension bridge in thirty years features two towers each with two struts post-tensioned struts with sixty tendons of 27-0.6" diameter strands. Owner: Caltrans Prime Contractor: C.C. Myers, Inc. |
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On this project AVAR installed 3,600 ft. long tendons - the longest ever installed in the world! Tendons comprised of 15-0.6" dia. strands were pulled into HDPE pipes by means of a special device developed for this tendon length. Grouting was performed with dual grout plants, allowing to fill a tendon with 220 cu. ft. of grout in less than two hours.