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US 17 Washington Bypass

Project Highlights

To minimize disturbance to the surrounding wetlands environment, specialized erection equipment was designed specifically for this project to provide span-by-span top-down construction.  The proprietary technique will use a single piece of equipment to drives piles, erects pier caps, erect girders and self-launch over the completed spans.  All material delivery and access will be over the completed spans.

Our Role

McNary Bergeron and Associates is providing peer reviews of the erection gantry design and structure loads during construction, and assisting with the development of the erection manual.

Construction Method and Specifications

  • Pre-cast 30”x30” concrete piles driven with erection gantry

  • Pre-cast post-tensioned pier caps and pre-cast pre-stressed 120' long concrete bulb-T girders erected using span-by-span top-down technique

  • 72' wide, 6-lane cast-in-place concrete deck

  • 2.8 miles long with 123 spans

Owner

State of North Carolina - Division of Highways

Contractor

Flatiron Construction Corp. / United (Joint Venture)

Total Contract Value

$192 million

Timeline

February 2006 through February 2010

Project Website

http://www.ncdot.org/projects/us17bypass/

Recent Photos - October 2007

 

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TROUP-HOWELL BRIDGE --  ROCHESTER, NY          WOODROW WILSON MEMORIAL BRIDGE  -- WASHINGTON, DC            MAUMEE RIVER BRIDGE -- TOLEDO, OH            ROUTE 123 OVER OCCOQUAN RIVER  -- OCCOQUAN, VA       HOOVER DAM BYPASS COLORADO RIVER BRIDGE  --  CLARK COUNTY, NV          BLUE RIVER BRIDGE  --  BRECKENRIDGE, CO                SKYWAY BRIDGE  --  OAKLAND, CA          SUSQUEHANNA RIVER BRIDGE --  HARRISBURG, PA          SIKORSKY BRIDGE   -- STRATFORD, CT           PAWNEE CREEK BRIDGE  -- STERLING, CO         MAROON CREEK REPLACEMENT BRIDGE --  ASPEN, CO   CARMEL TUNNELS RUPIN INTERCHANGE -- HAIFA, ISRAEL  VICTOR ROJAS BRIDGE  -- ARECIBO, PUERTO RICO     ROUTE 35 OVER THE RARITAN RIVER --  VICTORY BRIDGE, NEW JERSEY    GERALD DESMOND BRIDGE -- PORT OF LONG BEACH, CALIFORNIA    ARROYO SECO SEISMIC RETROFIT -- PASEDENA, CALIFORNIA   YANDICOOGINA BRIDGE -- WESTERN AUSTRALIA  TAIWAN HIGH SPEED RAIL -- TAIPEI, TAIWAN   LOGAN INTERNATIONAL AIRPORT -- BOSTON, MASSACHUSETTS

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