ODOT S.R. 58 Railroad Grade Separation


ODOT S.R. 58 Railroad Grade Separation, Wellington, Ohio


LOCATION

Wellington, Ohio

Project Highlights
  • 45-foot deep by 36-foot diameter retaining wall using 24” auger cast tangent piles.
  • Temporary Earth Support System (TESS)
Project Description

Designed to improve the movement of traffic through Downtown Wellington and allow for better response time by fire and safety forces, The Beaver Excavating Company constructed a railroad grade separation underpass on S.R. 58 at the CSX rail crossing just north of S.R. 18 on a new roadway alignment. In order to construct the new bridge next to the existing track alignment, a Temporary Earth Support System (TESS) had to be installed for a 30 foot deep excavation within 20 feet of the existing tracks. The TESS acted as a tie-back, soldier pile and lagging wall. The soldier beams were spaced at 8 foot centers with thru-beam connections for the tie-backs. The lagging was installed as “contact lagging”, sometimes referred to as “face lagging”, with ½” studs welded to the flanges of the soldier beams and 5”x9” steel plates tightened against the face of the lagging boards to hold them securely to the face of the soldier beams. A portion of the $12.3 million project also included building an auger cast pile retaining wall as part of the construction of a new pump station designed to remove storm water in the Village of Wellington. When finished, crews had constructed a 45-foot deep by 36-foot diameter retaining wall using 24” auger cast tangent piles. The piles resist uplift, compressive and lateral loads to support the pump station.

Beaver submitted a value engineering proposal that included auger cast piles, a temporary tieback solider pile and lagging wall, a permanent cantilever soldier pile lagging wall and a permanent soil nail shotcrete wall. The state accepted Beaver’s proposal which saved ODOT approximately $200,000