US Army Corps of Engineers C

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US Army Corps of Engineers CD Canal Bridges
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Philadelphia District

• Tony DePasquale P.E. Chief of Operations
• Timothy Rooney Project Manager
• Edward Voigt Chief of Public Affairs
• Susan Anderson Public Affairs

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Summit Bridge

• - Cantilever truss bridge
• - Four-lane structure, Delaware
  Rte. 896 US Rte. 301
• - 2,058 feet in length
• - ADT 30,000
• - Constructed 1957-1959

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Time Line of Actions

• September 2007 - Federal Highway Administration
  recommends to conduct additional inspection
  following I-35 Minneapolis Bridge failure.
• November 2007 US Army Corps hires Dr. Keating
  to conduct inspection on Summit Bridge, a steel
  cantilever truss bridges similar in construction
  to I-35 Bridge.
• March 2008 - A temporary clamp assembly followed
  by a permanent replacement should be installed at
  both bearings as soon as possible.
• April 2008 - Corps begins design to award
  contract by the end of the fiscal year (September
  2008).

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Temporary Clamp SystemMarch 26, 2008
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Summit Bridge Critical Needs

• North Anchor Span Anchor Pin Plate
• Pin Plate is distorted and pushed toward edge of
  pin
• Connection is Fracture Critical
• Significant corrosion deterioration of various
  critical members and connections

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Summit Bridge North Anchor Span Anchor Pin Plate
Pin should extend by ½ inch
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Crevice corrosion pushes pin plateNO POSITIVE
CONNECTIONFRACTURE CRITICAL
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Inside pin plate same condition
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Critical Needs Contracts for 2009

• 1. Summit Bridge Anchor Pin Plate
• A. Temporary fix - complete
• B. Permanent fix
• - Notice To Proceed October 2008
• - 7 Day Full Bridge Closure February 2009
• 2. Summit Bridge Approach Roadway Replacement
  Phase II (Northbound lanes)
• A. Notice To Proceed January 2009
• B. Lane Restrictions April 2009
• C. Completion - January 2010

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QUESTIONS FROM THE BOARD?

• Thank You for your time and understanding