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Center for Environmental Excellence | AASHTO
Center for Environmental Excellence | AASHTO
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  • Laws & Agreements
    • Programmatic Agreements Library (PAL)
    • Case Law Updates on the Environment (CLUE)
    • National Environmental Policy Act (NEPA)
    • NEPA Assignment
  • State of the Practice
    • Case Studies
    • Communities of Practice
    • Practitioner Interviews
  • Education
    • Environmental Topics
      • Active Transportation
      • Air Quality
      • Climate Change
      • Environmental Justice
      • Invasive Species/Vegetation
      • Stormwater
      • Sustainability
      • Traffic Noise
      • Waste Management/Recycling
      • Water Quality/Wetlands
      • Wildlife and Ecosystems
    • Practical Applications
      • Context Sensitive Solutions
      • Emerging Technologies
      • Environmental Management Systems
      • Geographic Information Systems
      • NEPA Process
      • Planning & Environment Linkages
      • Project Delivery
      • Protecting Cultural Resources
      • Public Involvement
      • Transportation Policy
      • Using the Practitioner’s Handbooks
  • News
  • Meetings & Events
    • Past Events
  • Resources
    • Practitioner’s Handbooks
    • AASHTO Publications
    • AASHTO Standing Committees
    • Federal & State Agencies
    • Trade Associations
    • Research
      • NCHRP 25-25
      • TERI Database
      • TRB Committees

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  2. Research Idea (TERI)

Developing a testing protocol for new rivets in a rehabilitated metal bridge

By ahardingMay 7, 2021Leave a comment

Rehabilitation of historic metal truss bridges often involves the replacement of rivets in the original bridge. Insofar as the rivets are considered part of the historic fabric of the bridge,…

Watershed Approach to Mitigating Hydrologic Impacts of Highway Projects

By ahardingMay 7, 2021Leave a comment

The traditional technique for addressing hydrologic impacts of highway projects is to construct detention basins. While the basins are effective at reducing peak flows and flood issues, they are less…

Compliance Measures for Managing Chloride-Based Deicers

By ahardingMay 7, 2021Leave a comment

Chloride-based deicers continue to be the primary deicing chemical of choice due to the huge cost differential with non-chloride deicers. Essentially there are no salt alternatives that are comparable in…

Highway Crossings for Wildlife

By ahardingMay 7, 2021Leave a comment

There is a great interest in safe wildlife crossings for a number of reasons: reduced auto/animal collisions that cause economic loss, and physical harm or death to humans and animals.…

Methodology for analyzing noise impacts on different terrestrial species

By ahardingMay 7, 2021Leave a comment

Develop a consistent methodology for analyzing noise impacts on different terrestrial species. Develop standard metrics and procedures for the DOTs to conduct noise analyses of our highway projects on wildlife,…

Design, Build, Operate and Maintain (DBOM) Contracting

By ahardingMay 7, 2021Leave a comment

The US interstate highway system is essentially complete, and was constructed in large part without the benefit of stormwater quality features to improve highway runoff water quality or measures to…

Sources of Zinc in Highway Runoff

By ahardingMay 7, 2021Leave a comment

General Scope of Work: Task 1: Literature Review. Complete a literature review to determine the sources of zinc in highway runoff. The literature review should also attempt to determine if…

Predicting migratory bird usage of bridges using structures inventory data.

By ahardingMay 7, 2021Leave a comment

Create a predictive model tool that uses bridge inventory data to rate the likelihood of migratory bird use on structures. A simple tool could be created using a few common…

Design Methodology for Meeting Return to Predevelopment Hydrology Requirements

By ahardingMay 7, 2021Leave a comment

For highways outside of cities, infiltration within a right of way (ROW) may be one of the few means of meeting the return to predevelopment hydrology requirement under the Energy…

Assessing the Practices of Transportation Agencies and SHPOs on Incorporation of Tribal Knowledge in Identification, Recordation and Evaluation of Stone Features

By ahardingMay 7, 2021Leave a comment

Customarily archaeologists have been in control of identification of stone features. These have been readily recognized on the Northern Plains and the Southwest, but less so in the NE and…

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  • All Content

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    • Using the Practitioner's Handbooks (8)
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    • Wildlife and Ecosystems (45)

The Center for Environmental Excellence by the American Association of State Highway and Transportation Officials (AASHTO) has been developed in cooperation with the Federal Highway Administration to promote environmental stewardship and to encourage innovative ways to streamline the transportation delivery process.

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