Ironworks Walkway Over the Rock River

 
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Woolpert is providing engineering design services for a pedestrian bridge traversing the Rock River in Beloit, Wisconsin. The Woolpert team is designing the abutments for a 234-ft long, 10-ft wide, custom-steel, tied-arch, wood-decked pedestrian bridge. In accordance with AASHTO LRFD design specifications (as well as local Wisconsin design standards), Woolpert’s abutment design will be presented with detailed plan sheets.

The abutment is a modified version of an integral reinforced concrete abutment with semi-expansion seat on a single row of cast in place pipe piles.  Short, straight, wingwalls are to be provided to tie the abutment into the proposed waterfront retaining walls.

The estimated lifting weight for the entire bridge without the wood decking (2” hardwood) is approximately 130,000 lbs. The bridge is designed to be set in place in sections, utilizing a “temporary center support” during bridge erection.  The live load on the structure has been given as 85 pounds per square foot with a 5 ton vehicle load possible.  The wind load has been given by the client as 25 psf.

A short approach slab is included to prevent differential settlement and a noticeable “bump” at the interface of the abutment and approach pavement.  A shorter modified version of the standard Wisconsin DOT approach slab will be provided.

Client
R.H. Batterman and Company

Location
Beloit, WI