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HNTB Corporation is an American infrastructure design firm. Founded in 1914 in
Kansas City, Missouri Kansas City, Missouri, abbreviated KC or KCMO, is the largest city in the U.S. state of Missouri by List of cities in Missouri, population and area. The city lies within Jackson County, Missouri, Jackson, Clay County, Missouri, Clay, and Pl ...
, HNTB began with the partnership made by Ernest Emmanuel Howard with the firm Waddell & Harrington, founded in 1907. One of the most trusted U.S.-based design firms, HNTB generated a revenue of $3 billion in 2023, the second most of any architectural firm in the U.S. The firm specializes in sporting facilities;
Levi's Stadium Levi's Stadium is an American football stadium located in Santa Clara, California, United States, just west of the much larger city of San Jose, in the San Francisco Bay Area. It has served as the home venue for the National Football League (N ...
, in which HNTB was ranked third on a list of the World's Top 10 Most Innovative Companies of 2015, and
Allegiant Stadium Allegiant Stadium is a domed multi-purpose stadium located in Paradise, Nevada, southwest of adjacent Las Vegas. Opened in 2020, it is the home field of the Las Vegas Raiders of the National Football League (NFL) and the University of Nevada ...
; transportation services such as airports, bridges, tunnels, roadways, and rail and transit systems, including renovations in places such as at
Los Angeles International Airport Los Angeles International Airport is the primary international airport serving Los Angeles and its Greater Los Angeles, surrounding metropolitan area, in the U.S. state of California. LAX is located in the Westchester, Los Angeles, Westcheste ...
and
Dallas Fort Worth International Airport Dallas Fort Worth International Airport is the primary international airport serving the Dallas–Fort Worth metroplex and the North Texas region, in the U.S. state of Texas. It is the largest hub for American Airlines, which is headquartere ...
, and projects for educational institutions, which includes at the
College of William & Mary The College of William & Mary (abbreviated as W&M) is a public university, public research university in Williamsburg, Virginia, United States. Founded in 1693 under a royal charter issued by King William III of England, William III and Queen ...
,
University of Southern California The University of Southern California (USC, SC, or Southern Cal) is a Private university, private research university in Los Angeles, California, United States. Founded in 1880 by Robert M. Widney, it is the oldest private research university in ...
, and
University of Michigan The University of Michigan (U-M, U of M, or Michigan) is a public university, public research university in Ann Arbor, Michigan, United States. Founded in 1817, it is the oldest institution of higher education in the state. The University of Mi ...
. The firm consists of around 7,200 professional staff across 79 locations, and is active in all major architectural specialties in the United States and around the world.


History

Waddell & Harrington was formed in 1907 as a partnership between
John Alexander Low Waddell Dr. John Alexander Low Waddell (January 15, 1854 – March 3, 1938, often shortened to J.A.L. Waddell and sometimes known as John Alexander Waddell) was a Canadian-American civil engineer and prolific bridge designer, with more than a thou ...
and John Lyle Harrington and was based in
Kansas City, Missouri Kansas City, Missouri, abbreviated KC or KCMO, is the largest city in the U.S. state of Missouri by List of cities in Missouri, population and area. The city lies within Jackson County, Missouri, Jackson, Clay County, Missouri, Clay, and Pl ...
, but had offices in
Portland, Oregon Portland ( ) is the List of cities in Oregon, most populous city in the U.S. state of Oregon, located in the Pacific Northwest region. Situated close to northwest Oregon at the confluence of the Willamette River, Willamette and Columbia River, ...
, and
Vancouver Vancouver is a major city in Western Canada, located in the Lower Mainland region of British Columbia. As the List of cities in British Columbia, most populous city in the province, the 2021 Canadian census recorded 662,248 people in the cit ...
,
British Columbia British Columbia is the westernmost Provinces and territories of Canada, province of Canada. Situated in the Pacific Northwest between the Pacific Ocean and the Rocky Mountains, the province has a diverse geography, with rugged landscapes that ...
. The company designed more than 30
vertical-lift bridge A vertical-lift bridge or just lift bridge is a type of movable bridge in which a span rises vertically while remaining parallel with the deck. The vertical lift offers several benefits over other movable bridges such as the bascule and swi ...
s for highways and railroads. After Howard's partnership, Waddell & Harrington eventually became Harrington, Howard & Ash. In 1941, it changed its name to Howard, Needles, Tammen & Bergendoff when Enoch Needles, Henry Tammen & Ruben Bergendoff joined as partners. In 1975, it merged with
Kivett and Myers Kivett & Myers was a Kansas City, Missouri architecture firm that pioneered the design of modern professional sports stadiums. The firm was established in 1931 as the sole proprietorship of Clarence Kivett. With the addition of Ralph E. Myers in 1 ...
to form a sports architecture practice. In 1982, it acquired the rail firm of Thomas K. Dyer adding track, signal, communications and traction power to its portfolio, thus positioning the firm to serve the rail industry. In 1993, it formally changed its name to HNTB Corporation. In 2000, the firm became employee-owned.


Services


Architecture

HNTB's architecture projects have included
Levi's Stadium Levi's Stadium is an American football stadium located in Santa Clara, California, United States, just west of the much larger city of San Jose, in the San Francisco Bay Area. It has served as the home venue for the National Football League (N ...
in San Francisco, home of the
San Francisco 49ers The San Francisco 49ers (also written as the San Francisco Forty-Niners and nicknamed the Niners) are a professional American football team based in the San Francisco Bay Area. The 49ers compete in the National Football League (NFL) as a member ...
, completed in 2014; the Wichita Dwight D. Eisenhower Airport terminal, which opened in 2015; an expansion of
Kroger Field Kroger Field, also known as Commonwealth Stadium, is a stadium in Lexington, Kentucky, United States, located on the campus of the University of Kentucky that primarily serves as the home field for the Kentucky Wildcats football team. The stad ...
at the University of Kentucky;
Camping World Stadium Camping World Stadium is an outdoor stadium in Orlando, Florida, Orlando, Florida, United States located in the West Lakes neighborhood of Downtown Orlando, west of new sports and entertainment facilities including the Kia Center, the Dr. Phil ...
reconstruction in Orlando in 2014; and
Bartle Hall Convention Center The Kansas City Convention Center, originally Bartle Hall Convention Center or Bartle Hall, is a major convention center in Downtown Kansas City, Missouri, USA. It was named for Harold Roe Bartle, a prominent, two-term mayor of Kansas City i ...
Ballroom Expansion in 2007.


Aviation

In 2014, Airport Business Magazine recognized two of the company's aviation experts, James Long PE and Jennie Santoro, with a "Top 40 Under 40" award. In 2015, HNTB's Clint Laaser, RA, LEED AP, received the same recognition. The annual award by the magazine recognizes 40 aviation industry professionals under the age of 40 for their academic, professional and community achievements. HNTB's aviation projects have earned several awards. The firm created the conceptual design for the 221-foot-tall air traffic control tower at San Francisco International Airport. In 2016, the project earned a Grand Conceptor Award from the American Council of Engineering Companies for the structural engineer of record (
Walter P Moore Walter P. Moore and Associates, Inc. (d/b/a Walter P Moore) is an international company providing structural engineering, diagnostics, civil engineering, traffic engineering (transportation), traffic engineering, parking consulting, facade e ...
). HNTB was lead architect and performed initial planning and engineering services on the San Diego International Terminal 2 expansion project. In 2014, the project earned a Best of the Best Projects award from Engineering News-Record in the Airport/Transit category. Currently, HNTB is the architect of record on Orlando International Airport's new south terminal project. The project won a 2017 American Architecture Award. The firm also supports mentoring programs for young professionals in the aviation market.


Bridges

Ted Zoli is currently the national bridge chief engineer at HNTB. In 2016, the National Steel Bridge Alliance gave HNTB awards for several bridge projects. These included the South Park Bascule Bridge in Seattle; the Portsmouth Memorial Bridge between New Hampshire and Maine; the Stan Musial Veterans Memorial Bridge in St. Louis; and the Falls Flyover Ramp in Wichita, Kansas. HNTB serves as owner's engineer for the New York State Thruway Authority on the New NY Bridge project, which replaces the Tappan Zee Bridge over the Hudson River in New York. The new bridge is called the Gov. Mario M. Cuomo Bridge. HNTB was project oversight representative for the
Florida Department of Transportation The Florida Department of Transportation (FDOT) is a decentralized agency charged with the establishment, maintenance, and regulation of public transportation in the U.S. state of Florida. The department was formed in 1969. It absorbed the power ...
on the Sisters Creek Bridge replacement in Jacksonville, Florida. In 2017, the project earned a National Awards of Merit in the Transportation category from the Design-Build Institute of America. HNTB led the final design for the Leonard P. Zakim Bunker Hill Memorial Bridge in Boston. The company won an award for the repair of the John E. Mathews Bridge after it was severely damaged by a ship impact in September 2013.


DOTs

HNTB serves, and has previously served, on a variety of projects for state departments of transportation across the U.S. The firm's DOT work has included construction engineering and inspection services on the I-595 Express Corridor Improvements Project for the Florida Department of Transportation, the Johnson County Gateway Interchange for the Kansas Department of Transportation, and program management consultant services on the U.S. 290 Corridor rebuild for the Texas Department of Transportation. Additionally, the firm has served on the I-94 reconstruction for the Michigan Department of Transportation, the Milwaukee Zoo Interchange for the Wisconsin Department of Transportation, and the Poplar Street Bridge project for the Missouri Department of Transportation.


Intelligent transportation systems

HNTB's intelligent transportation systems projects have included system design and maintenance and operations services for a smart truck parking system in Michigan and the Tampa Bay SunGuide Center. HNTB also supports the Tampa Hillsborough Expressway Authority on Tampa Connected Vehicle Pilot and a Truck Parking Availability System for the Florida Department of Transportation.


Tolls

HNTB supported the Florida Department of Transportation to complete I-595 Corridor Roadway Improvements in Broward County, Florida, which reached substantial completion in 2014.


Transit/Rail

HNTB works on transit stations, commuter rail, Bus Rapid Transit, Positive Train Control, streetcars and others. The company is a supporter of high-speed rail projects. HNTB provided several services on the
Chicago Transit Authority The Chicago Transit Authority (CTA) is the operator of public transport, mass transit in Chicago, Illinois, United States, and some of its suburbs, including the trains of the Chicago "L" and List of Chicago Transit Authority bus routes, CTA bu ...
Red Line Wilson Station Reconstruction Project in Chicago, including train control, communications, mechanical, architectural, environmental mitigation support and structural. The project was completed in 2017. HNTB was part of a joint venture that was lead designer on the
Dallas Area Rapid Transit Dallas Area Rapid Transit (DART) is a transit agency serving the Dallas–Fort Worth metroplex of Texas. It operates buses, light rail, commuter rail, and high-occupancy vehicle lanes in Dallas and twelve of its suburbs. In , the system had a r ...
South Oak Cliff Extension 3 project. The project was completed in 2016. HNTB won the 2017 Bronze Engineering Excellence Award from the American Council of Engineering Companies of Massachusetts for its work supporting the
Massachusetts Bay Transportation Authority The Massachusetts Bay Transportation Authority (abbreviated MBTA and known colloquially as "the T") is the public agency responsible for operating most public transportation services in Greater Boston, Massachusetts. The MBTA transit network in ...
on the Fitchburg Commuter Rail Improvement Program.


Tunnels

HNTB was lead designer for the SR99 Tunnel Project in Seattle. The tunnel was completed in 2017 and opened in 2019. HNTB was the independent design verifier for the Istanbul Strait Crossing tunnel in Turkey. The tunnel, also known as the
Eurasia Tunnel The Eurasia Tunnel () is a road tunnel in Istanbul, Turkey, crossing underneath the Bosphorus Strait. The tunnel was officially opened on 20 December 2016 and opened to traffic on 22 December 2016. The double-deck tunnel connects Kumkapı o ...
, established a connection between the European and Asian sides of the city, and opened in 2016. The project won a 2016 Global Best Project award from Engineering News-Record, and engineering industry publication, in the Bridge/Tunnel category.


Awards

The Milwaukee Office (Milwaukee, Wisconsin) was named No 1. Best Place to Work in Milwaukee in 2020, 2021, & 2022 by Milwaukee's ''Business Journal''. Ashley Booth, HNTB's national streetcar practice leader, was named to Mass Transit Magazine's Top 40 Under 40 2017 list. Tim Faerber, PE, a senior vice president at HNTB, received ENR Midwest's Legacy Award in 2017. Faerber was the fourth person to win the award. During his career, he has led HNTB's Illinois operations and was Great Lakes Division president from 2010 to 2013. Diana Mendes, HNTB's transit/rail market sector leader, Mid-Atlantic Division president and senior vice president, was awarded the 2017 Training Professional of the Year Award by the National Transit Institute. In 2006, the
American Public Works Association The American Public Works Association (APWA) is a nonprofit, professional association of public works agencies, private companies, and individuals dedicated to promoting professional excellence and public awareness through education, advocacy and ...
named the High Five Interchange as the "Public Works Project of the Year" for its massive size, its innovative design, the complexity and rapidity of its construction and the need it fulfilled for the community. HNTB Corporation received the award as the primary consultant, along with the
Texas Department of Transportation The Texas Department of Transportation (TxDOT ) is a Texas state government agency responsible for construction and maintenance of the state's immense Texas state highway system, state highway system and the support of the state's maritime trans ...
as the managing agency and Zachry Construction Corporation as the primary contractor. The award was in recognition of their cooperative alliance in completing the project.


References


External links


Official website
{{Authority control Architecture firms based in Missouri Companies based in Kansas City, Missouri Construction and civil engineering companies of the United States Engineering companies of the United States Engineering consulting firms of the United States