Residential Street Rehabilitation, I-94
OE provided design services to the City of Torrance to rehabilitate streets in Areas A & C. This $3.6 million project was funded by gas and local taxes. The project limits included 30,000 LF of primarily residential roadways with several main arterials. The project scope included coming up with a cost effective street design to mitigate deteriorated pavement conditions, conducting a drainage analysis that efficiently conveyed surface runoff, producing a design of effective roadway and alley transitions, and replacing damaged concrete items including curb, gutter, sidewalks, and driveways.
OE conducted a pavement analysis of Area A and concluded that the best treatment method would be a full roadway reconstruction. As part of the pavement analysis, OE conducted a comprehensive cost-benefit analysis, and made a recommendation for the most cost-efficient rehabilitation method, and chose Full-Depth Reclamation. Furthermore, OE designed a custom rolled swale with colored concrete for Area A to preserve the traditional rustic character of the neighborhood, while capturing surface runoff and preventing erosion and ponding.
As for Area C, a pavement analysis was conducted and indicated that this Area will need a 3.5” grind and overlay with an intermittent layer of pavement reinforcing fabric. In addition, major improvements to the existing curb and gutter system were implemented, which would have otherwise become a perpetual issue. OE pointed out that without the proper construction of curb and gutter and the adequate conveyance of the drainage runoff, the neighborhood would be susceptible to further degradation and will be in need of a reconstruction. Lastly, 106 ramps were replaced to meet ADA compliance, and five (5) cross-gutters were added outside the two areas.