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Rebuilding I-93 is more than just a roadway and bridge construction project. From the onset of project planning, NHDOT has worked with other state and federal agencies to address environmental concerns associated with the I-93 Corridor. Please follow the links below for more information.

SEIS - Click for additional information and an update on the Supplemental Environmental Impact Study.

FEIS – Click to read or download the Final Environmental Impact Study.

Mitigation - Details on wetland mitigation as well as other aspects of the overall corridor mitigation package.

CTAP - Details, documents and meeting information on the Community Technical Assistance Program (CTAP) has been and continues to be developed to help communities in the I-93 region plan for future growth.

Chloride Surface Water Quality Study - Details, documents and meeting information relative to the Chloride TMDL study being conducted within the corridor.

Noise Abatement - Project wide, over five miles of sound walls will be erected in about a dozen locations to mitigate the current and anticipated increase in noise along the project corridor.

Click here to access the full text of the US Army Corps of Engineers Permit No. 199201232/NAE-2004-233.


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