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Permanent Sheet Pile Wall System, PA Turnpike, MP 40.84 WB – This permanent sheet pile wall system was developed by Earth, Inc. as a value engineering alternative for Trumbull Corporation for a 1,573-foot long, as-designed, 20-foot high MSE wall founded over steep-sloped, existing embankment to accommodate roadway widening at Milepost 40.84 WB of the Pennsylvania Turnpike in Allegheny County – which also would have required 30-foot deep temporary shoring to be installed before beginning construction of the MSE wall or T-wall alternate. Essentially, the sheet pile wall system consisted of one step rather than two step construction, i.e., the installation of sheet pile structural elements to form the wall face and perpendicular sheet pile wall “fins” attached to the wall face via three-way connectors to provide lateral resistance to earth pressure which effectively served as their own temporary shoring.

Speakers:

Michael Sydlik, P.E.: President and Chief Geotechnical Engineer – Earth, Inc.

John A. Nemmer: Project Executive – Trumbull Corporation

Koppel Bridge Replacement Project, SR 351- B10 – This bridge replacement project built a new 4-span structure adjacent to the original 12-span Koppel Bridge. The original structure was a Harmony Street Car project built by the Ellwood and Koppel Bridge Company, which operated the structure as a toll bridge. A short 72-day closure was used for final tie-in work to avoid a long detour.

Speakers:

Kevin Hartnett, P.E.: PA Transportation Operations – ms consultants, inc.

David Raybuck: Construction Manager – PennDOT District 11

This virtual meeting is free to members, government employees, and students. All non-members will be charged $20. Registration is required online; you’ll receive an email link to participate in the video conference and phone numbers to call-in to the audio portion. PDHs will be emailed to attendees after the session. This event is limited to the first 250 people who register. RSVP by February 22nd.