Engineers & Consultants

Engineers and consultants doing business with the New Hampshire Department of Transportation will find links to business and technical information listed below.

Bridge / Highway Plans, Details, Manuals and Guidelines

Completed Plans, GIS Catalog

Consultant Selection


Estimate Data and Advertising Information

Permits: Driveway, Environmental, Excavation

Qualified Products & Materials


Standards and Specifications

Survey Data

  • GPS Base Station Data

Traffic Data

Work Zone Plans, Policy, and Safety