Sequoia Parkway Bridge
This project involved constructing a new bridge over an existing railway. In order to accommodate high volumes of semi-truck traffic on the roadway, significant retaining walls were constructed on the approaches to the bridge. The span of the bridge is approximately 52 feet long. The retaining walls on the approaches are approximately 24 feet tall. GeoPacific investigated the site and provided recommendations for the proposed construction. GeoPacific provided construction monitoring services during construction.
Boring, Oregon 2014-2015
This bridge was constructed to replace an existing bridge across North Fork Deep Creek. We worked closely with the owner and the bridge designer to evaluate options for the support of the bridge abutments and to develop a cost-effective solution. A block wall abutment was utilized on the western bank of the waterway. In order to mitigate the risks of damage to the proposed structure due to slope instability and scour, it was necessary to utilize tangent piles for the support of the abutment on the eastern bank of the waterway. We provided quantitative evaluations of slope stability for the abutments and design calculations for the tangent piles. Our construction monitoring services included inspection of foundation subgrade preparation, drilled shafts, and compaction of retaining wall backfill.
