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Salt Creek Emergency Reline

Globe, Arizona

Owner:

Arizona Department of Transportation

Engineer:

EPS Group

Contractor:

DBM Contractors/Nove Engineering

Installation:

October 2007

Highway U.S. 70, a major east-west highway of the southern part of the country, runs from North Carolina to east-central Arizona. Under U.S. 70 in Globe, three culverts installed in 1953 were showing serious signs of damage. The 15-foot diameter structures were closing up at the inlet ends, with two of the three almost completely closed off due to many years of erosion.

Deemed an emergency project, the Arizona Department of Transportation needed a quick solution from consulting engineer EPS Group. EPS brought in Contech to reline the three structures, which is expected to add at least 100 years to the service life of the structures. The reline materials are composed of three 13-foot diameter round MULTI-PLATE structures, each 90 feet in length and grouted in place.

Rehabilitating the structures using MULTI-PLATE prevented need for road closure, eliminating extra cost, time and inconvenience to motorists. Lining the failing structures used little of the available end area, thereby preserving the maximum amount of the original opening. In addition, hydraulic capacity was restored by repairing the inlets.

General contractor DBM Contractors Inc. and Nove Engineering faced several challenges during the relining process, including harsh weather and other unforeseen delays. The MULTI-PLATE structures, however, were delivered on time and the three structures were completed in just a few weeks. The project’s completion came in three days ahead of ADOT’s predicted schedule.

Technical Description:

  • Diameter: 13 ft (3)
  • Length: 90 ft (3)
  • Product: MULTI-PLATE®

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