The purpose of the bridge approach slab is to significantly reduce local settlement and to accommodate global settlement by providing a gradual transition between the roadway and …

Back Face of Backwall (Beam or Girder Bridge) or Edge of Bent Cap (Flat Slab Bridge)

Construct approach slab in accordance with Item 422. Provide Class "S" concrete with a minimum compressive strength of 4,000 psi. Provide Grade 60 reinforcing steel.

Apr 22, 2019 · T o avoid a hard point on a bridge, you construct an approach slab. This is a concrete slab below the pavement that extends ten or fifteen feet beyond the edge of the bridge.

The present study evaluates common bridge approach problems and causes and recommends improvements to bridge approach design, construction, and maintenance.

Aug 17, 2021 · In order to mitigate possible settlement and excessive loading on the end bent, a 20 ft. long bridge approach slab is constructed to span/fill the area adjacent to both ends of …

Widen the approach slabs in-kind as much as possible. For widenings that use new construction details, a minimum transverse width calculation should be made to ensure that the new …

The approach slab serves as a bridge between the roadway and the primary bridge and is intended to reduce the annoying and sometimes unsafe “bump” that is often felt when …

The approach slab provides a transition between roadway pavement and the bridge. The approach slab acts as an intermediate bridge to span the portion of embankment directly …

Nov 1, 1999 · Many state departments of transportation (DOTs) regard the settlement of bridge approach slabs as a substantial maintenance problem. Guidelines affecting the use, design …