Invitation for Bid

New Hampshire Department of Transportation Road and Bridge and Public Works construction project Invitations to Bid are listed below.

Click the Project Name to access the project information.

For Information about Electronic Bidding.

If you would like to obtain the password for access to the proposal/plans, please reach out to the Contract Office at (603) 271-3732 or email


NHDOT Road and Bridge Projects:

Derry-Londonderry A005(207), 13065B Scope:  Construction of a new connecting roadway

Portsmouth 43760 Scope: Constructs 2 new sound abatement walls and a privacy fence along I-95 in Portsmouth


Statewide Durables 2024 44755 Scope:  Durable pavement markings


Public Works Projects:


Berlin 81220B Scope:  Perimeter security & fence detection system

Concord 81284B Scope:  New legislative parking garage

Concord 81218B Scope:  NHSP door and ceiling replacement


Concord 81055RB Scope:  ARPA Bathroom renovations in the State House


Hampton 81289B Scope: South Beach bathhouse renovations

Lancaster 81330RB Scope:  ARPA Weeks State Park historic stie improvements

Lancaster 81258B Scope:  ARPA Coos County Courthouse concrete plaza & parking lot improvements

Statewide 81114B Scope:  Life safety code improvements


Invitation-Only Projects:

Project Name

  • Bid Items
  • Bid date:
  • Estimate:
  • List of Bidders
  • Proposal