Skip Maine state header navigation

Agencies | Online Services | Help

Skip First Level Navigation | Skip All Navigation

Kittery-Portsmouth Sarah Mildred Long Bridge Replacement Project


The Sarah Mildred Long Bridge Replacement - The Regional River Crossing




Beginning at 5 P.M. on Thursday, January 22nd, there will be changes in the traffic patterns in Kittery due to construction of the Sarah Mildred Long Bridge Replacement Project.

A traffic light will be activated at the intersection of Bridge Street and the Route 1 Bypass which will coordinate with the traffic signal on the bridge. In addition, A section of Bridge Street through Oak Terrace will be closed to all but local traffic and will be used by construction crews accessing the Kittery side of the project.

View a larger version of this picture



Weekly Highlights
: January 23, 2015

  • Cianbro is continuing to construct temporary access to the pier locations on both side of the Piscataqua River.
  • The Rt. 1 by-pass and Bridge Street intersection at the Kittery end of the bridge was reconfigured on 01/22/15.
  • Work continues on the first bent of the temporary trestle on the Kittery side and the coffer dam for pier #1 on the Portsmouth side.


General Project Information

The SML Replacement Project is a joint venture between the Maine and New Hampshire Departments of Transportation, with MaineDOT serving as the lead. This project is part of a “Three Bridge Agreement” between Maine and New Hampshire to address their jointly owned bridges spanning the Piscataqua River. The other two bridges are the “high level” bridge that carries I-95, and the Memorial Bridge that links the communities of Portsmouth and Kittery, and offers vehicle, bike and pedestrian travel.

The Sarah Mildred Long Bridge, built in 1940, provides a regional link between Maine and New Hampshire, and is the critical back-up route in case of disruption on the Interstate 95 Bridge. SML carries crucial commercial traffic along the US Route 1 Bypass including movement of people and goods to the Navy Shipyard in Kittery that employs 4,200 workers.

Maine and New Hampshire have agreed to replace Sarah Mildred Long Bridge instead of implementing the rehabilitation project outlined in the March 2011 Memorandum of Agreement between Maine and New Hampshire regarding the three Piscataqua River bridges. The DOTs will equally share the costs of replacing the SML Bridge which is now estimated to be $170 million.

The design process gets under way in 2013 and it is anticipated that construction will begin in the fall of 2014.



This page last updated on 1/30/15