SR 3011-451, Grafton and Campbell’s Mill Bridge Rehabilitation

SAI was responsible for preliminary and final design and construction consultation including the design of new decks, bearing replacements, steel repairs/retrofits, substructure repairs, bridge painting, etc. for the Grafton and Campbell’s Mill Bridges over Blacklick Creek in Indiana County, Pennsylvania.

Physical features:

  • Two 415′ four-span continuous steel stringer/multi-beam bridges over Blacklick Creek.
  • Approximately 300′ of roadway approach on a two lane rural collector.
  • ADT for the Grafton Bridge is 5,091, and ADT Campbell’s Mills is 715.

Other features:

  • Traffic maintained via detour.
  • Traffic analysis and control plan developed and implemented. Structures were put back onto a flat grade to save construction dollars.
  • NTP on final design was given on January 4, 2010, with development of final PS&E in one month – including 58 structure plan sheets, TCP, signing, roadway plans, cross-sections, specifications, and cost estimate.

“This bridge rehabilitation project was on an extremely accelerated schedule. SAI submitted the PS&E package approximately one month after being notified of the project. Rich Kauffman and the entire SAI team worked diligently to provide quality plans, special provisions and estimates, while meeting the strict deadlines in place. Their efforts allowed the District to advance the project to take advantage of surplus funding.”

Client Owner: Pennsylvania Department of Transportation, District 10-0
Completion: 2012
Construction Cost: $4,500,000

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