Straightening and Strengthening Aging Infrastructure
Eversource is New England’s largest energy provider, serving more than 3.6 million electric and natural gas customers in Connecticut, Massachusetts, and New Hampshire. A long term client of ours, we assisted them with obtaining state and federal authorizations to replace two failing utility poles located within inundated portions of Turtletown Pond in Concord, New Hampshire. The structures were originally replaced in 2009, but freeze and thaw cycles within the pond had caused the existing poles to lean to the point of causing a safety hazard.
An Updated Design
The updated design involved the installation of new poles within rock islands to add structural stability. Access to the structures were obtained by stacking wooden timber mats several layers deep to create an access road and work areas above water.
Environmental Permitting & Monitoring Services
Tighe & Bond developed a Standard Dredge and Fill Major Permit application for submittal to the New Hampshire Department of Environmental Services. Since Turtletown Pond is also designated as habitat for rare turtles, coordination was necessary with the New Hampshire Fish and Game Department. Permit authorizations were also received from the U.S. Army Corps of Engineers under Section 404 of the Clean Water Act.
Our team also provided environmental monitoring during construction, as well as conducted pre- and post-construction turtle surveys.