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Case Studies

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."


     Projects      Case Studies

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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

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

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.

Bridges: Brooklyn Bridge, NY

Brooklyn, NY

Pedestrians and bicyclists use a path on a deck above the road grade.

Bridges: Richmond, Virginia

Richmond, VA

A set of slaloms form this unique cable suspended pedestrian bridge, hung between two wide columns.

Canal Parkway, from Wiley Ford Bridge to MD 51

Cumberland, MD (Started 1989, Completed 2001)

Prior to this roadway project, severe traffic congestion occurred daily at the Virginia Avenue underpass (locally known as the "subway") of CSXT tracks and its intersection with MD 51. When this facility was blocked (by accidents or flooding) there... more

Coastal Boulevard "Strandvejen" in Hellerup, Denmark

Hellerup (Started 1983)

"The coastal boulevard Strandvejen through Hellerup is a textbook example of a heavily trafficked road where light road users have been given better conditions, among other things by the establishment of bicycle tracks and a central reservation."

Fernan Lake Road

(Started 2000, Completed 2006)

Fernan Lake Road is the primary recreational access to Fernan Lake in northern Idaho. It also provides access to residences, an established shooting range, and the Idaho Panhandle National Forest (IPNF) lands. The road is also used for commercial... more

Gateway 1: Collaborative planning for Midcoast Maine

(Started 2004)

Gateway 1 is a landmark long-term strategic land use and transportation planning project for the Midcoast Route 1 region in Maine. A collaboration amongst communities and state agencies, Gateway 1 explores new ways of combining transportation and... more

Highway through Mutzig, France

Mutzig

"Mutzig is one of the many beautiful towns in Alsace, and the conversion that was made of the main street in the 1980s lives up completely to the inherent charm of the town."

Historic Columbia River Parkway

Columbia River Gorge, OR

The first paved highway in the northwestern United States, the Columbia River Highway was conceived, designed, and constructed as both a scenic attraction and as a means of facilitating economic development along the Columbia River corridor between... more

I-70 Mountain Corridor

Colorado Department of Transportation (CDOT) initiated the program based on a commitment made in the 106 Programmatic Agreement. This commitment charged CDOT to initiate a CSS project focused on the decision process and guidelines for all future... more

I-84 Corridor Strategy

(Completed 2013)

Interstate 84 in the Columbia River Gorge National Scenic Area (CRGNSA) is a critically important corridor that serves as a primary regional transportation artery, a key interstate freight route, and a scenic highway.

IA, Hwy 1, Keosauqua Bridge

Keosauqua, IA

Replace a deteriorating historic bridge quickly reaching its intended lifespan (1939 was the last structural improvement) located in a unique setting that includes a nearby historic hotel and scenic river front area.

Kanawha Trace Trail Accommodated During US35 Construction: Frazier’s Bottom, WV

The Kanawha Trace Trail was opened for use in October 1962. In 2007, construction of new US35 four-lane alignment threatened to temporarily impact the use of the Kanawha Trace Trail. A three-day event sponsored by the Tri-State Area Council, Boy... more

Kentucky Proposed I-66

In 1997, the Kentucky Transportation Cabinet (KYTC) completed a study that concluded that the Southern Kentucky Corridor (I-66) was feasible. The Somerset to London segment of the I-66 corridor is home to many natural, scenic, and sensitive areas. It... more

Landscape and Interpretation Project, US-101

Raymond, WA (Started 1993-06, Completed 1993-11)

This project was part of Washington's scenic byways improvement program. It was a top priority for the city of Raymond to create a visually appealing community for travelers along US-101 and to introduce travelers to the unique Willapa basin, with... more

Legacy Trail

Lexington, KY

In anticipation of the 2010 Alltech FEI World Equestrian Games, Lexington desired a method of connection to downtown Lexington, Kentucky from the Kentucky Horse Park. In addition to this major event, officials and stakeholders, knowing that the... more

Lyndon Road Bridge Replacement

Perinton, NY (Started 1993, Completed 2002)

The Lyndon Road Bridge was a one-lane 5-span bridge that crossed over the Erie Canal and CSX railroad line. A camelback structure spanned the Canal, with pony trusses spanning the railroad. The 1911 structure had become inadequate for vehicular... more

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