Environmental Research

Highway construction can have an impact on the environment and the NHDOT research program is a resource that investigates solutions. The environmental research projects have evaluated existing practices and resulted in revised and improved ways of doing business.

Research and the Environmental Aspects of Transportation Projects

 

ACTIVE: Wildlife Vehicle Collisions Data Gathering and Best Management Practices Part 2 (42372P)

ACTIVE: Water Quality Test Site and Public Outreach at the I-89 Sutton Rest Area (42372H)

Wildlife Vehicle Collisions Data Gathering and Best Management Practices Part 1 (42372I)

  • Researcher: Plymouth State University
  • Date: 2024
  • Final Report
  • Poster
  • Quarterly Reports:
    • 2021 Q3
    • 2021 Q4
    • 2022 Q1
    • 2022 Q2
    • 2022 Q3
    • 2022 Q4
    • 2023 Q1
    • 2023 Q2

Log Jam Monitoring (26962W)

  • Researcher: University of New Hampshire
  • Date: 2023
  • Final Report
  • Poster
  • Quarterly Reports:
    • 2019 Q3
    • 2019 Q4
    • 2020 Q1
    • 2020 Q2
    • 2020 Q3
    • 2020 Q4
    • 2021 Q1
    • 2021 Q2
    • 2021 Q3
    • 2021 Q4
    • 2022 Q1
    • 2022 Q2
    • 2022 Q3

Assessment of Embedded Culvert Low Flow Hydraulics (26962Y)

Mildly Contaminated Soil Distribution Assessment (26962K)

Validating Pollutant Load Estimates from Highways and Roads (15680Y)

Fingerprinting Sources of Nitrogen in Wells near Blasting Sites (15680V)

  • Researcher: U.S. Geological Survey, New England Water Science Center
  • Date: 2015
  • Article

Reprinted (adapted) with permission from James R. Degnan, John Karl Bohlke, Krystle Pelham, David M. Langlais, and Gregory J. Walsh, 2015,Identification of groundwater nitrate contamination from explosives used in road construction: Isotopic, chemical, and hydrologic evidence: Environmental Science and Technology, doi:10.1021/acs.est.5b03671. Copyright 2015 American Chemical Society.

Biological Control of Purple Loosestrife (12323Q)