Columbia Parkway Landslide Progressive D-B

Columbia Parkway Landslide Progressive D-B, Cincinnati, Ohio

LOCATION

Cincinnati, Ohio

Project Highlights

$17.8 million progressive design-build contract delivery
Project scope included mitigation of 9 slide areas along a two-mile stretch of Columbia Parkway
Project design for 30-year effective lifespan
Site work included 9.9 acres of clearing, removal and off-site disposal of 66,700 cy of construction spoils, and 12 acres of grading and seeding
1568 lf. of soldier pile walls constructed including 262 ea. of I-beam piers ( 24"-36" deep by 25'-35' long steel I-beams )
4500 ea. of 1 1/8" dia. soil nails installed for a total of approximately 135,000 lf.
217,600 sf. of high-tensile strength wire mesh installed
Catchment zones incorporated into the design for ongoing material and debris removal maintenance
No recordable safety incidents on the project

Project Description

The Columbia Parkway Landslide Remediation was a progressive design-build construction solution to address a decades-old issue of landslides and soil creep along a two-mile section of roadway in Cincinnati, Ohio. A long-term solution incorporating soldier pile walls, and soil nail/wire mesh retention systems provided the basis of the stabilization design and construction methods. The overall project scope for the stabilization of nine slide areas included; site investigation, project design, clearing, grading, excavation and off-site spoil removal, construction of soldier pile retaining walls and soil nail/wire mesh retention systems, maintenance of traffic, and final seeding.

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