Torringford West Street Reconstruction - Torrington, CT

Torringford West Street is a minor arterial road which connects East Main Street (CT Route 202) with the primarily rural area to the north. This project involved the total reconstruction of 1.5 miles of badly deteriorated roadway to meet AASHTO design standards and to improve an inadequate drainage system.

The existing pavement was in very poor condition due to heavy traffic loading and weakening of roadway sub-base and sub-grade soils due to inadequate surface and subsurface drainage. To improve surface drainage, the roadway geometry was corrected to increase longitudinal and cross slopes. Gutter flow analysis was performed and a new storm sewer system was designed

Pre-construction

Post-construction

Subsurface explorations were carried out to evaluate existing pavement base and sub-grade materials. Gradation and CBR tests were performed and used to design the pavement using AASHTO pavement design procedures.

Full depth pavement reconstruction was required. A specification was developed for the reclamation of the existing pavement and base material for use as base material after installation of a gravel sub-base. Due to poor drainage characteristics of the subgrade soils, a system of underdrains was designed.

Horizontal and vertical realignment of the road was also required to improve inadequate sight distances and to improve a sharp curve at a busy intersection.

Cardinal Engineering provided all engineering services during the design phase including survey, preliminary engineering studies, subsurface investigations, soil testing, hydrologic and hydraulic analysis, pavement design, geometric design, and the preparation of easement and taking maps.

Cardinal also provided bidding and full time Resident Engineering and Contract Administration services for three separate construction contracts.