SR 0191 Lateral Retaining Wall Repair

SR 0191 Lateral Retaining Wall Repair Overview

Wayne County, PA

GAI provided preliminary design and design management services during construction to PennDOT District 4-0 for the design-build of a retaining wall along the eastern side of SR 0191 between the roadway and the Delaware River in Wayne County. A slope of approximately 1.25:1 along the existing, two-lane roadway had caused substantial differential cracking in the pavement, creating a potentially hazardous driving situation for motorists.

Geotechnical investigation—including test borings and installation and monitoring of inclinometers to obtain deep-seated slope movement data—determined that the installation of a retaining wall was the optimal solution to correct the slope stability issue. The District required maintenance of one traffic lane during construction due to extremely long detour length; this resulted in the use of a combination of reinforced soil slopes (RSS) and soil nail wall. The project also involved reconstruction of a 430-ft segment of SR 0191 to repair damage to the roadway. The lane adjacent to the new retaining wall was a full depth reconstruction, while the interior lane was milled and overlaid. New guide rail was also installed throughout the project limits.

GAI’s design services included survey, right-of-way investigations, geotechnical investigations, utility investigations, preliminary plans, preliminary retaining wall designs, and plans, specifications, and estimates (PS&E) package. During the construction phase, GAI provided construction consultation, shop drawing reviews, final plans review, and structure design and plan reviews.

Learn More.

CONNECT WITH GAI

Related Services

View All

Other GAI Projects

View All