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Site Directory
Snapshot of all website content, in outline format, with links to content pages.
New on the Website
A list of items posted each week, based on a daily news scan of relevant topics.
New on the Website by Week
Comprehensive summary of all items, posted by week and by year, dating back to 2006.
Practitioner's Handbooks
Handbooks with practical advice on a range of environmental issues that arise during the planning, development and operation of transportation projects.
News about new Center products, programs, publications, webinars and other activities. Archive link displays items posted for the year.
Links to past AASHTO webinars designed to provide technical assistance, training, information exchange, partnership-building opportunities, and access to environmental tools.
News from Around the Web
Links to recent transportation postings that are relevant for transportation and environmental professionals.
Transportation / Environment Alert
Weekly newsletter on relevant environment and transportation news. Full text available to subscribers only.
Case Studies
Examples of success stories, best practices, and innovative tools and approaches.
Center for Environmental Excellence by AASHTO
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  • Case Study Photo

    The Arizona DOT has developed a manual to ensure compliance for its projects under Sections 404 and 401 of the Clean Water Act.

    Read Case Study >Photo: Arizona DOT

  • Case Study Photo

    Montana DOT's Indirect Effects Desk Reference will help consider potential impacts of road projects on the state's unique natural resources.

    Read Case Study >Photo: Montana DOT

  • Case Study Photo

    Washington State DOT reports significant time savings by issuing combined EIS, Record of Decision.

    Read Case Study >Photo: Washington State DOT

  • Case Study Photo

    Following damage from Tropical Storm Irene, Vermont Agency of Transportation training emphasizes managing roads in concert with streams and rivers.

    Read Case Study >Photo: VTrans

  • Case Study Photo

    Wyoming DOT Wildlife crossings provide safe passage for migrating pronghorn and mule deer along US 191.

    Read Case Study >Photo: Wyoming DOT

Center Products & Programs

The Center offers diverse products and programs for technical assistance, training, information exchange, partnership-building opportunities, and quick access to environmental tools.

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Practitioner's Handbooks

Practical advice on a range of environmental issues that arise during the planning, development, and operation of transportation projects. View Handbooks >graphic: handbooks


Webinars on key topical areas of interest, including Climate Change, Construction/Development Effluent Guidelines, NEPA, Stormwater, and more. View Webinars >

News from Around the Web

Recent Internet postings of interest to transportation and environmental professionals. View News >

Transportation/ Environment Alert

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