ASPIRE is a quarterly magazine published by PCI in cooperation with the associations of the National Concrete Bridge Council. The editorial content focuses on the latest technology and key issues in the Concrete Bridge Industry.
Issue link: http://www.aspiremagazinebyengineers.com/i/296646
In late April 2007, a barge carrying a crane with its boom partially raised struck the 4200-ft-long, two-lane McTeer Bridge over the Beaufort River and Intracoastal Waterway in Beaufort County, S.C. Two steel girders on the southern-most portion of the bridge spanning the navigable channel were destroyed, and a third girder was seriously damaged. The damaged McTeer Bridge was one of only two bridges for more than 40,000 low-country drivers to travel from Lady's Island, and the other surrounding islands, to the mainland of Port Royal. The full and partial closures of the bridge for emergency repairs created substantial traffic problems for almost three months. The temporary i n c o n v e n i e n c e h i g h l i g h t e d t h e inability of the existing transportation infrastructure to handle an increase in the amount of traffic should an evacuation from the islands occur prior to a hurricane. Prior to the impact at the bridge, the residents of Beaufort County had voted to enact a local sales tax upon themselves to fund future infrastructure projects that would be effective in May 2007. Following the impact and subsequent repairs to the McTeer Bridge, the decision was made to widen the approaching roadway and build a new parallel "sister" bridge to the existing McTeer Bridge. The new bridge project, SC 802 over the Beaufort River and Intracoastal Waterway, was to be the recipient of $34.6 million of those local sales tax generated funds. New Bridge Needed T h e B e a u f o r t C o u n t y E n g i n e e r i n g D i v i s i o n s e l e c t e d a b r i d g e d e s i g n e n g i n e e r t o p r o v i d e p r o j e c t management and engineering design services for the construction of a new 4211-ft-long, two-lane, high- level bridge carrying SC 802 over the Intracoastal Waterway and adjacent protected marsh wetlands, and the widening of an additional 1.7 miles profile SC 802 OVER THE BEAUFORT RIVER AND INTRACOASTAL WATERWAY BRIDGE / PORT ROYAL AND LADY'S ISLAND, SOUTH CAROLINA BRIDGE DESIGN ENGINEER: Collins Engineers Inc., Charleston, S.C. PRIME CONTRACTOR: United Contractors LLC, Great Falls, S.C. PRECASTER: Standard Concrete Products, Savannah, Ga., a PCI-certified producer OTHER SUPPLIERS: S&ME Inc., Mt. Pleasant, S.C.; Tidewater Environmental, Johns Island, S.C.; Dennis Corporation, Columbia, S.C.; OLH Inc., Columbia, S.C.; Woolpert, Charleston, S.C.; and THC Right of Way Services Inc., Columbia, S.C. Completed SC 802 over the Beaufort River and Intracoastal Waterway Bridge. Photo: Collins Engineers Inc. by Edward H. Stehmeyer III, Collins Engineers Inc. Barge collision necessitates new bridge, more-resilient design SC 802 over the Beaufort River and Intracoastal Waterway Bridge 16 | ASPIRE , Winter 2014 P R O J E C T AspireBook_Win14.indb 16 12/10/13 12:53 PM