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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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Survey and compilation of effective designs for promoting sensitive reptile and amphibian crossings of roadway corridors

By ahardingMay 7, 2021Leave a comment

Survey of DOTs, MPOs, LPAs and NGOs regarding designs for promoting sensitive reptile and amphibian crossings of roadway corridors, effectiveness, and general cost benefit analysis including maintenance implications and costs.…

The Efficacy of Treating Highway Runoff to Meet Watershed TMDL Goals

By ahardingMay 7, 2021Leave a comment

Background: State Departments of Transportation (DOTs) are being named as Designated Management Agencies in Total Maximum Daily Load (TMDL) management plans. This designation often brings with it the obligation for…

Survey of wildlife-friendly temporary and permanent erosion control products and approaches

By ahardingMay 7, 2021Leave a comment

Survey and compilation of information on erosion control products that are safe for sensitive reptiles and amphibians (netting-free) and erosion control treatments (alternatives to rip rap) that do not block…

Development of a Model Monitoring Program for a DOT

By ahardingMay 7, 2021Leave a comment

Background: Many NPDES Permits require DOTs to monitor receiving waters to characterize runoff from DOT facilities, assess the effectiveness of BMPs, and for compliance with TMDLs. Monitoring programs require considerable…

Survey of state and sensitive species databases characteristics and user ratings; which characteristics make online species databases most useful to users?

By ahardingMay 7, 2021Leave a comment

Survey of DOTs on use of on-line species databases and available GIS data. Which databases are most useful and what are the characteristics that make them useful (resolution and accuracy…

Porous Aspahlt Pavement Maintenance Evaluation

By ahardingMay 7, 2021Leave a comment

The use of porous asphalt pavement (PAP) can purify stormwater runoff and recharge the groundwater. PAP is one of the acceptable structural Best Management Practices (BMPs) that can be used…

Procedures/agreements for managing the proposal and listing of new species under the Endangered Species Act

By ahardingMay 7, 2021Leave a comment

A survey of DOTs, FHWA offices, USFWS and federal land managing agencies for practices adopted to manage project review given the uncertainty associated with increasing listing of new species under…

Artificial ‘Cave’ Habitat on Bridges to Benefit Sensitive Bats

By ahardingMay 7, 2021Leave a comment

The benefits of bats to humans and the environment are well known. Some are principal pollinators and others consume large quantities of insects detrimental to agricultural crops and human health.…

What’s The Value of Airport Rail Stations?

By ahardingMay 7, 2021Leave a comment

There has been a great deal of interest in building airport stations on rail public transportation (heavy and light rail as well as intercity passenger rail). This study would look…

Evaluation of monitoring methodologies for Myotis sodalis and Myotis septentrionalis in conjunction with current USFWS protocols and transportation projects.

By ahardingMay 7, 2021Leave a comment

The Indiana bat (Myotis sodalis) is a federally listed endangered species and the Northern long-eared bat (Myotis septentrionalis) is a species proposed for Federal listing under the Endangered Species Act…

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  • All Content

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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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