McLaren’s Bridge / Highway / Rail team has begun work on the $115 million Design-Build of the Lower Westchester bridges with Halmar International. During this initial phase, our surveyors and geotechnical engineers were in the field completing pre-construction evaluations at three locations just north of NYC in preparation for the replacement of five full bridges and a culvert.
This NYSDOT infrastructure project (D900049) aims to mitigate frequent flooding concerns of the sites’ overpasses and adjacent highways. It includes 1,700 feet of soil stabilization along the Saw Mill River Parkway and extensive bridge, highway, drainage, utility and Intelligent Transportation System (ITS) improvements along each high-volume corridor. The project also includes environmental permitting.
The Design Build Projects
The projects are located at three specific sites in lower Westchester County: Hutchinson River Parkway at Lincoln Avenue in Pelham, NY; Saw Mill River Parkway in Thornwood, NY and Route 1 in Mamaroneck, NY. Further details on the five bridges include:
| BIN No. | Carried | Crossed | Spans | Length existing | Width existing | Type |
| 5500100 | Lincoln Avenue | Hutchinson River Parkway | 1 | 63 ft | 46 ft | Concrete |
| 3348300 | Lincoln Avenue | Hutchinson River | 1 | 35 ft | 44 ft | Concrete |
| 5500859 | Saw Mill River Parkway | Saw Mill River | 1 | 27 ft | 61 ft | Stringer/Multi-Beam Girder, Steel |
| 5500839 | Saw Mill River Parkway | Saw Mill River | 1 | 29 ft | 61 ft | Stringer/Multi-Beam Girder, Steel |
| 1000040 | US Route 1 | Mamaroneck River | 1 | 50 ft | 53 ft | Concrete Arch |