Monthly Archives: November 2017

Roads & Bridges, Special Deck Makes History on Liberty Bridge in Pennsylvania

Over 170,000 square feet of deck surface was replaced in an accelerated bridge construction (ABC construction) project highlighting Pennsylvania’s first use of an Exodermic deck.  Modular steel bridge deck panels were installed by both cast-in-place and precast methods.

Designers at HDR in Pittsburgh took advantage of the lightweight features of the Exodermic deck instrumental to remove the bridge from the states structurally deficient list.

“We selected Exodermic deck panel construction for this project due to its high strength to weight ratio and suitability for modular precast construction.  Accelerated construction using precast units on the north end of the bridge prevented significant weekday traffic impacts,” states Nick Burdette, P.E., of HDR.

The entire article can be found on the Roads & Bridges website by clicking here.

BGFMA Gridline #17

View Gridline Newsletter #17 on the BGFMA website by clicking the link below and opening the newsletter

Featured articles:

“Meet Darko Jurkovic, P.E.” continues the introduction of BGFMA Certified Fabricator members whose many years of experience can be valuable to provide sound advice during plan preparation, fabrication, and installation.

“Getting into the Swing of It,” showcases the use of a lightweight Exodermic deck on the new Gasparilla Island Swing Bridge specified for its structural efficiency.

The results of the 2017 ASCE/AISC National Student Steel Bridge Competition are summarized.

“Grid Facts” presents in-service grid reinforced concrete decks that that have surpassed the current 75 year design life will most likely reach the 100 year bridge service life ultimate goal.