Sunday, April 22, 2018


Scope of Work
Cianbro will construct and replace the Sarah Mildred Long Bridge located on the Piscataqua River. The existing steel vertical lift bridge carries the U.S. Route 1 Bypass, providing a critical link between Kittery, Maine, and Portsmouth, New Hampshire. The new 2,800 ft concrete vertical lift bridge will be constructed at a higher elevation than the existing, with a vehicular structure stacked over a railroad level, as well as a longer lift span at 300 ft. Other differing characteristics include long open spans, fewer piers, and wider shoulders.  

Project Details
  • Construct concrete roadway and railroad superstructures
  • Construct a high quality and reliable 300-foot-long steel lift span
  • Construct four angular lift span towers 
  • Construct approach roads and intersections
  • Facilitate and foster collaboration, communication, and partnership with all members of the Project Team and stakeholders
  • Avoid and minimize Project impacts to roadway, railway, and maritime traffic, local business, and communities during construction


Unique Challenge

As a member of the Integrated Project Team (IPT), Cianbro will continue to work collaboratively with the Maine and New Hampshire Departments of Transportation as well as Figg Engineering and Hardesty & Hanover, on New England’s first Construction Manager/General Contractor (CM/GC) alternative delivery approach to this project. With the successful completion of preconstruction services, Cianbro will address safety, improve the project schedule, enhance overall quality, and adhere to the budget goals.

Project Information

Maine & New Hampshire Departments of Transportation

Type of Project:

Construction Schedule:
Start: October 2014
Complete: December 2017

Kittery, ME & Portsmouth, NH

Copyright 2013 by The Cianbro Companies Contact Us | Plan Room Vendors & Suppliers  | Privacy Statement | Terms Of Use
2013 by Cianbro Corporation