Contractor tries do-over on damaged parkway

Employees with Concrete Stabilization Technologies, Inc., inject a polyurethane foam into a sinking section of the Fifth Street bridge Wednesday as some of the substance bubbles up through a crack.



RIVERSIDE PARKWAY REPAIR 063011
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Employees with Concrete Stabilization Technologies, Inc., inject a polyurethane foam into a sinking section of the Fifth Street bridge Wednesday as some of the substance bubbles up through a crack.

063011 Parkway repair map

A troublesome portion of Riverside Parkway south of the Fifth Street Bridge that has been prone to cracking and settling is now under repair for the second time.

The $110 million parkway, a seven-mile beltway skirting Grand Junction’s southern edge, opened to traffic in August 2008, but that particular section first was repaired about a year and a half after it was constructed.

General contractor for the Riverside Parkway, SEMA Construction of Centennial, is paying for the repairs, Grand Junction City Engineer Manager Trent Prall said.

Prall said SEMA planned to repair the damages in January, but the company put off the project until now to better assess the damage and investigate fixing it with a new product.

During the first repair, SEMA bolstered the ramps with grout, but the soil compacted, causing the roadway to buckle and retain water.

SEMA hired Denver-based Concrete Stabilization Technologies to insert an expanding material into the banks to raise the road level up about three inches, Prall said.

“Definitely a lot of the ride-ability will come back,” Prall said of the roadway. “Mistakes could have come a little bit on the design side or from the contractor side. It’s all over the board. We weren’t happy with the final product, and SEMA wasn’t happy with the final product.”

The parkway is covered under a one-year warranty that extends another year if a repaired section is deemed deficient, Prall said.

Repairs should be completed by the end of the week, Prall said.



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