Past & Current Projects

Assessment of Colorado Department of Transportation Rest Areas for Sustainability Improvements and Facilities for Alternative Energy Resource Use

The functional and amenity expectations of rest areas by the public have substantially grown over the past decade. Meeting these expectations and increased safety concerns have resulted in the addition of features such as high intensity lighting, air conditioning, paving, and grassy areas. Maint..
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Interstate-25 Valley Highway EIS-Water Quality and Stormwater Management

The Valley Highway is the name for Interstate 25 (I-25) in Central Denver from the US 6 interchange south to US 85 Santa Fe Drive interchange. The Valley Highway EIS was the first CDOT NEPA project that was required to address the new CDOT Municipal Separate Storm Sewer System (MS4) permit regul..
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Transportation Sustainability

TerraLogic’s Art Hirsch has been involved with several sustainability transportation projects. The 120th Avenue Connection Project is a design build project located in Broomfield Colorado that promotes sustainable design and construction concepts. He is working with the CDOT Environmental ..
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Sustainable Rest Areas/Alternative Energy Assessment

The Assessment of CDOT Rest Areas for Sustainability Improvements and Highway Corridors and Facilities for Alternative Energy Source Use Project (the Project) complements the sustainability concept by enhancing the local environment within and near the Colorado Department of Transportation (CDOT..
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Interstate-70 Corridor Water Quality Vail Pass (Black Gore Creek) Eisenhower Tunnel (Straight Creek)

Two surface water systems and watersheds along the Interstate 70 Corridor were assessed due to impacts received by interstate system operations; Straight Creek located on the west side of the Eisenhower Tunnel and Black Gore Creek located on the west side of Vail Pass. Straight Creek Provide..
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Evaluating New York GreenLITES for Colorado Department of Transportation (CDOT) Projects

CDOT is starting to take a proactive approach in integrating sustainability elements into their transportation practices from transportation planning through system construction. The New York State Department of Transportation has developed an internal sustainability rating and certification pro..
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CDOT Stormwater Management

Art Hirsch (TerraLogic) has worked with the CDOT Environmental Programs Branch on stormwater and water quality projects for the past 10 years. These projects involve the management of stormwater for the CDOT Municipal Separate Storm Sewer System (MS4) Program. He served as a water quality consul..
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120th Avenue Connection Project - Broomfield, Colorado

The 120th Connection Avenue Connection Project is one of the first CDOT design build projects for a medium sized construction project. The project is located in Broomfield, Colorado and involves the extension of 120th Avenue (State Highway 128) from Wadsworth Parkway (SH 121) east over US 36 to ..
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