HNTB Corporation (Formerly Howard, Needles, Tammen & Bergendoff) is an architecture and engineering consulting firm headquartered in Kansas City, Missouri that has designed many bridges, roadways, airports and professional sports stadiums across the United States and around the world.

The firm started in 1914 as Harrington, Howard & Ash specializing in the design of moveable bridges. In 1941 it changed its name to Howard, Needles, Tammen & Bergendoff. In 1975 it merged with Kivett and Myers to form a sports architecture practice.

It formally changed its name to HNTB Corporation in 1993 and became employee-owned in 2000.

Projects

Bridges

• Greenville Bridge - Greenville, Mississippi and Lake Village, Arkansas
• Charles W. Dean Bridge - Arkansas City, Arkansas and Benoit, Mississippi
• Delaware Memorial Bridge - New Jersey and Delaware
• Fuller Warren Bridge - Jacksonville, Florida
• Hoan Bridge - Milwaukee, Wisconsin
• Bob Kerrey Pedestrian Bridge - Omaha, Nebraska (scheduled to open September 28, 2008)
• South Omaha Veterans Memorial Bridge - Omaha
• Stillwater Lift Bridge - Stillwater, Minnesota
• Leonard P. Zakim Bunker Hill Bridge - Boston, Massachusetts
• Perry Street Bridge - Napoleon, Ohio
• Paseo Bridge - Kansas City, Missouri

Roadways/Interchanges/Tollways

• Marquette Interchange - Milwaukee, Wisconsin
• Dallas "High Five" Interchange - Dallas, Texas
• Veterans Glass City Skyway - Toledo, Ohio
• Illinois Tollway - Illinois
• Completion of Interstate 287 - New Jersey
• Three Trails Crossing (formerly the Grandview Triangle) - Kansas City, Missouri
• Kansas Turnpike (I-35, I-335, I-70) - Kansas
• Springfield Interchange (I-95, I-395, I-495, VA 644) - Springfield, Virginia

Aviation

• Midway Airport - Chicago, Illinois
• Kansas City International Airport - Kansas City, Missouri
• Los Angeles International Airport - Los Angeles, California
• Dallas/Fort Worth International Airport - Dallas, Texas
• Tucson International Airport - Tucson, Arizona
• Minneapolis-St. Paul International Airport - Minneapolis, Minnesota
• Seattle-Tacoma International Airport - SeaTac, Washington

Light Rail

• Galveston Island Trolley - Galveston, Texas
• Kansas City Area Transit Authority - Kansas City, Missouri

Stadiums

Major League

• Kauffman Stadium - Kansas City, Missouri
• INVESCO Field at Mile High - Denver, Colorado
• Ralph Wilson Stadium - Buffalo, New York
• RCA Dome - Indianapolis, Indiana
• Giants Stadium - New Jersey

Convention Centers

• Bartle Hall - Kansas City, Missouri
• San Diego Convention Center Expansion - San Diego, California

Arenas

• Oakland Arena - Oakland, California
• Galen Center - Los Angeles, California
• Mackey Arena - West Lafayette, Indiana

Minor League

• Louisville Slugger Field - Louisville, Kentucky

External links

• Official website
• Kansas City Biz Journal profile