Internal MSE Crash Wall
Internal MSE Crash Wall
North Baltimore, OH
Kokosing Construction Company
EMH & T, Inc.
The construction of the new CSX Northwest Ohio Trans Shipment Terminal in North Baltimore, Wood County, Ohio included the construction of a grade separation of Liberty Hi Road over the CSX Railroad. The proposed structure is a 140-ft. single span, steel plate girder super structure on steel piling with Reinforced Earth® abutment walls. Since the Reinforced Earth wall was within 50-ft. of the center line of the railway track, the bridge was protected by 2.5-ft. thick crash worthy barrier. The designer of the project, EMH & T, Inc. of Columbus, Ohio and the general contractor of the project, Kokosing Construction Company, Inc. of Columbus, Ohio elected to use 2.5-ft. precast Reinforced Earth concrete wall panels as the crash worthy barrier.
The span of the bridge was reduced by at least 5-ft. by using an internal crash wall that incorporate 2.5-ft. thick crash worthy panels into the Reinforced Earth wall. The Reinforced Earth Company (RECo) obtained the first patent on concealed crash wall in combination with Mechanically Stabilized Earth Construction (US Patent No. 6,174,109 B1) on January 16, 2001. The new design using 2.5-ft. thick precast panels is a natural extension of the original patent. RECo worked very closely with Norwalk Concrete Industries of Norwalk, Ohio to develop specialized techniques to fabricate and transport these pieces that weigh approximately 10,000 lbs.
In addition to the extreme care required for casting and shipping these large pieces, successful wall construction also requires the use of special joints between panels to maintain proper clearance between the panels during the 100 year design life of the structure. RECo’s experience in designing proprietary joints for specialized MSE projects was helpful in designing a unique joint design for this project.
Installation of the Reinforced Earth walls began in November 2010 and was completed in spring 2011. The use of internal precast crash walls played an important role in facilitating the on-time completion of this project, in spite of the adverse weather conditions. Happy with the successful construction and seamless communication amongst the project team, Kokosing Construction Company would not hesitate to build similar projects going forward, should the opportunity present itself.