FHWA, Manhattan Main Street Design-Build

Manhattan Main Street Design-Build: Prime Contractor $2,500,000

The USDOT, Central Federal Lands Highway Division of the Federal Highway Administration contracted with SWP to Design & Build a 0.8 mile section on Main Street in Manhattan, NV.

Design activities included:

• Roadway & Drainage design
• Hydrological Engineering
• Temporary and Permanent Traffic Control
• Environmental Documents and Permitting (Cultural Survey, Environmental Site Assessment, Biological Survey, Wetlands and Waters of the US Delineation, NPDES/SWPPP).

Major project activities included:

• Grading
• Aggregate base course
• Asphaltic concrete (Warm Mix)
• Erosion & sedimentation control
• Signing and striping
• Drainage improvements consisted of storm water conveyance via ditches, box culverts and pipe culverts.
• Riprap added to minimize erosion.

The biggest challenges that SWP faced on the project was related to issues with its’ remote location, existing utilities and off-site flows of water.