Case Studies

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

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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.

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.


3500 South EIS, Redwood Road to 8400 West

(Started 2002-03, Completed 2007)

Purpose and Need Problems and needs identified by the entire project team, including community are best seen on the attached pdf.

The Purpose and Need statement was developed through a collaborative effort between local... more

Access Management Plan: US Highway 10

Detroit Lakes, MN (Completed 2002)

The Access Management Plan for Highway 10 through Detroit Lakes was needed to improve safety and maintain mobility for through traffic while providing appropriate access to the local community.

This project is located in the City of... more

Arterial Relations: Widening a one-mile stretch of Pennsylvania roadway far from routine

Altoona, PA

The widening of a one-mile stretch of Park Avenue roadway near Altoona, Pa., was far from routine. The nine-year project impacted more than 80 properties – businesses and residences – resulted in more than 35 right-of-way acquisitions and... more

Earning rave reviews from the City of Shoreline and the public, the project garnered formal recognition from the American Road & Transportation Builders Association (ARTBA) with its Globe Award, which honors U.S. transportation construction projects that demonstrate environmental excellence and stewardship and serve as role models for other projects.

Aurora Multimodal and Interurban Bridge Project

Shoreline, WA (Started 2007-06)

Community desires to improve the quality of life in the city; promote development; security; stormwater quality; aesthetics.

Bicycle Facilities in San Francisco

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

Bridges: Brooklyn Bridge, NY

Brooklyn, NY

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

Carson Street Reconstruction

Carson Street Reconstruction

Torrance, CA

Carson Street is a major east-west arterial street running through the middle of the city of Torrance, CA. High levels of traffic congestion on the original four-lane undivided cross sections and the absence of left-turn lanes were responsible for a... more

Churton Downtown

Hillsborough, NC

The following charge was given to responding correspondents for the downtown study: A Downtown Traffic Demand Management and efficiency assessment to include looking at signalization (timing, synchronization and dedicated left turns), turn... more

Converting Highways into Streets and Avenues

West Hartford, CT

Increasingly, localities around the country are beginning to realize the importance of converting urban highways into streets, avenues, and boulevards. The initial focus has been on restoring downtown main streets. States leading this trend... more

Feasibility Study, Maine Route 1

Bath, ME (Completed 2005)

Public Engagement

A key component of the Bath Feasibility Study was public involvement. The outreach program included several public forums including a public goal-setting workshop, a public informational meeting and... more

I-96 BL (Grand River Avenue) Roadway Rehabilitation

Howell, MI

The project location was I-96BL (Grand River) from M-59 to Grand Oaks Drive in Genoa, Oceola, and Howell Townships and the City of Howell, Livingston County.

The project involved a milling and resurfacing, construction of a center... more

Indianapolis Cultural Trail

Indianapolis, IN (Started 2000, Completed 2013-05)

Leaders in the city of Indianapolis, Indiana, wanted to make it easier for people to visit the city’s cultural districts, which were disconnected from the heart of downtown and didn’t get the attention they merited. In a city with a successful... more

Maryland Route 108 map

Maryland Route 108

Olney, MD (Completed 1995)

Since the mid-1980's, land development around this suburban Baltimore highway has lead to drastic increases in traffic volume. Officials sought to maximize Route 108's capacity and relieve its congestion just as Maryland was developing their... more

Mount Rainier, MD, Neighborhood Conservation Project

Mount Rainier, MD, Neighborhood Conservation Project

Mount Rainier, MD (Started 1997-10, Completed 2002-08)

US Route 1 (Rhode Island Avenue) split the commercia of traffic with an ADT of 21,000. This division created numerous transportationl town center of Mount Rainier with a six-legged intersection and four lanes and urban design problems that hindered... more

Paul Bunyan Drive (TH 197) Reconstruction

Bemidji, MN (Started 1997, Completed 2003)

To reconfigure and reconstruct TH 197 at the south entrance into Bemidji, Minnesota, consolidating driveway access, stabilizing the shoreline of Lake Bemidji, creating storm water ponds to enhance water quality, creating new traffic and pedestrian... more

Towson Roundabout

Towson Roundabout

Towson, MD

Towson, Maryland is a suburb of Baltimore, Maryland. Near the central part of the Towson business district, four major arterials converge at a single location. The awkward, multi-leg signalized intersection caused congestion and safety problems. In... more

US-23 Cheboygan: Drawbridge Rehabilitation

Cheboygan, MI (Started 2004-01, Completed 2004-06)

The US-23/State Street Bascule (drawbridge) is located in the city of Cheboygan in Cheboygan County.

The National Register listed bridge was completed in December of 1940 and was the last Bascule bridge built in Michigan before World... more

US 395 Roundabout - Colville Roundabout

Colville, WA (Started 2000-11)

U.S. 395 is a major arterial and north/south international freight corridor, which follows Main Street through Colville. In partnership with the City of Colville, WSDOT coordinated the design and funding of its programmed U.S. 395 improvements... more

Washington, D.C.: Pennsylvania Ave. and 9th Street

Washington, D.C.: Pennsylvania Ave. and 9th Street

Washington, DC

Washington, DC, has many good intersections, with tight lanes and exceptional attention to details. This one features turn lanes for buses, but is pedestrian friendly.

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