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Case Studies

There are 155 Case Studies that are related to:

Taking the High Road: The Environmental and Social Contributions of America's Highway Programs

This database includes both Case Studies that have been described in official publications (in pink), and Projects that have been posted here by aboutcss.org site members (in red). To search for a particular project, enter a keyword or click on "Advanced Search."

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11th Street Bridges Project

Washington, DC (Started 2008-07-02)

The incomplete freeway system in Southeast Washington forces drivers to exit the freeway onto neighborhood streets to reach their destinations. Some of the primary routes are through environmental justice neighborhoods. Freeway and local street... more

12300 South Design Build Project, Draper and Riverton, Utah

Draper, UT

The purpose of this project was to reconstruct a six-mile section of urban arterial to address capacity and safety issues, in addition to providing a stimulation to the local economy.

Added Capacity and Noise Walls - SR-527

Mill Creek, WA (Started 1990)

This project was developed to address congestion on a section of SR-527 between 164th Street SE and 132nd Street SE. SR 527 highway passes through downtown Mill Creek.

Aesthetic and Safety Improvement, SR-99

Des Moines, WA (Started 1997, Completed 2005)

The purpose of the project is to improve traffic congestion, operations, and safety; provide facilities for transit and pedestrians; and encourage economic redevelopment along the SR-99 corridor through the city of Des Moines.

Aesthetic Guardrail Design, SR-20 - Ducken Road to Rosario

(Started 2000, Completed 2007)

The purpose of this project is to improve safety and reduce accident frequency and severity. Within this section of SR-20, a primary issue is upgrading it to bike touring standards.

AR 215, Ozark National Forest, AR

Purpose and Need: Inadequate roadway for current and anticipated traffic - travel lane too narrow, surface rough (gravel), and unnecessary amount of dust and siltation produced, detracting from the personal experience and water quality of the streams... more

Barracks Row

Washington, DC (Started 2000, Completed 2004-01)

8th Street Barracks Row, a 3/4 mile, 6 block stretch between Pennsylvania Avenue and M Street SE, is one of the District's oldest commercial corridors. 8th Street's turn of the century buildings give the street charm and character, but over the... more

Berthoud Pass Mountain Access Project - Phases 1 and 2

Clear Creek County, CO

The existing facility had a narrow roadway that posed safety issues and mobility issues due to limited passing opportunities on the winding, mountainous road. The existing roadway also posed numerous environmental problems due to: 1) poor... more

Bicycle Facilities: Bellevue, WA

Bellevue, WA

Bicycle lanes on a four-lane road with a diverter near transit stops. Bellevue has numerous bike lanes on many or most principal roads and many wetland and other trails.

Bicycle Facilities Davis, CA

Davis, CA

Two-way bicycle lane on a commercial street separated by a planted buffer from both the road and the sidewalk. Davis, CA and its university campus are considered by many to be among the "bicycle champions" because of their extensive bike... more

Bicycle Facilities Ft Lauderdale, FL

Ft Lauderdale, FL (Started 2003)

Bicycles share the road in Ft. Lauderdale, which has an extensive network of bicycle lanes on local and state routes.

Bicycle Facilities in Olympia, WA

Olympia, WA

Bicycle lane on a four-lane road with a diverter and a mid-block crosswalk. Olympia has a number of bicycle lanes, traffic calming sensitive adaptations, bridges, and trails.

Bicycle Facilities in San Francisco

San Francisco, CA

Bicycle lane at the Embarcadero. San Francisco has an extensive system of bike lanes that go over bridges, through parks, and at the waterfront. Some say that the Golden Gate Bridge trail is one of the premier walks/biking experiences in the world.

Bicycle facilities, Lauderdale By The Sea, FL

Lauderdale By The Sea, FL

Converting Ocean East from a four-lane road to three lanes provides room for a bicycle lane. Lauderdale By The Sea also features good bicycle treatments along U.S. A-1-A, in addition to some trails.

Bicycle Facilities: Mesa, AZ

Mesa, AZ

A bicycle lane next to a parking lane on a four-lane road with a raised median. Mesa has several significant new boulevard bicycle lanes.

Bicycle Lane in St Petersburg, FL

St Petersburg, FL

Bicycle lane next to parking lane on a one-way street in St Petersburg, FL. The street has three traffic lanes, one bike lane and curbside parallel parking lanes on each side. The city is working on a major trail linking from Pinellas Trail to Gandy... more

Bicycle Lanes in Portland, OR

Portland, OR

Bicycle lane on Broadway; a multi-lane road. Portland's got it all - bike lanes, reduced lane widths, bicycle parking, floating pontoon trails, and many exceptional inventions.

Bridgeport Way Reconstruction

University Place, WA

The purpose of this project was to address the safety concerns due to the high number of crashes over the past years. At the same time it was viewed essential to the vision statement of the City Council that aimed in improving the quality of life in... more

Bridgeport Way - University Place, Washington

University Place, WA (Started 1998-05, Completed 2002-06)

Bridgeport Way is a major urban arterial and it could be considered as a "Main Street" of University Place. The project involved reconstruction of an existing five-lane road into a four-lane divided roadway over a distance of approximately 1.5... more

Bulbout: Cotati, California

Cotati, CA

This sidewalk extension is under construction on Old Redwood Highway, a two-lane road in a small rural town.