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Cooper River Bridge Fact Sheet
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Name:
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1-526 Bridge over the Cooper River
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Location:
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North Charleston - Mount Pleasant, South Carolina
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Bridge Type:
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three span continuous modified Warren truss (structural steel)
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Designers:
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Howard, Needles, Tammen & Bergendorff - New York Office
Partner in Charge: Gerald Fox
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Contractor:
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John F. Beasley Construction Co.
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Construction Supervisors:
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Howard, Needles, Tammen & Bergendorff - New York Office
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Owner:
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Department of Highways and Public Transportation, South Carolina
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Completion date:
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Opened to traffic on March 10, 1992
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Statistics:
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Main Span
800 feet (243.9 meters)
Side Spans
400 feet (122.0 meters)
Width
93 feet, 7 inches (28.5 meters, 6 lanes of traffic)
Navigational Channel
700 feet wide, 155 feet high (above Mean High Water)
Truss Depth
55 feet (Span/Depth Ratio = 800/55 = 14.5)
Material Quantities
· Structural Steel: 83 psf of steel over deck area
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Foundation:
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Steel friction piles
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Cost:
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Preliminary Estimate for main crossing (1600 feet) $20.6 Million
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New Technologies Employed
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Materials:
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· High Strength Steel (Fy 36 to 100 ksi)
· Light Weight Concrete
· Epoxy Coated Rebars
· Improved Paints (corrosion resistant)
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Fabrication/Erection:
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· Automated (RELIABLE) Welding
· Computer Controlled Cutting and Drilling
· Large Capacity Cranes
· Post-tensioning
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Design/Analysis:
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· 3D Stability Analysis
· Metal Fatigue
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