Background The passage across the
Detroit River between the United States and Canada has been an important traffic route since the
American Civil War, with ferries transporting goods and people across the river. A railway tunnel (
Michigan Central Railway Tunnel) was opened in July 1910, a suspension bridge for road traffic (
Ambassador Bridge) opened in November 1929, and a road tunnel (
Detroit–Windsor Tunnel) opened in 1930. The Ambassador Bridge is the busiest crossing on the
Canada–United States border, with nearly 25% of U.S.–Canada border crossings by trucks using the bridge.), private ownership by billionaire
Manuel Moroun and poor maintenance record. Both the bridge and the road tunnel lack direct highway connections on the Canadian side, with city streets and traffic lights between them and
Ontario Highway 401.
Detroit River International Crossing In the early 2000s, work was begun to investigate the need for a future crossing of the Detroit River by a bi-national partnership of the
U.S. Federal Highway Administration,
Transport Canada,
Ontario Ministry of Transportation and the
Michigan Department of Transportation (MDOT). During development, the project was known as the Detroit River International Crossing (DRIC) and the New International Trade Crossing. The various environmental approvals for the project were approved in both the United States and Canada in 2009. In 2009, the
Ohio State Senate passed a non-binding resolution expressing support for the crossing, and urged the Michigan government to pass it, due to Canada being Ohio's largest foreign trade partner, with billion per year in goods traded between Ohio and Canada. In 2011, the bridge was tentatively scheduled for completion in 2016, according to the Michigan Department of Transportation.
Michigan legislation In 2010, the
Michigan Senate had not approved any authorizing legislation related to the bridge. The Senate Majority Leader
Mike Bishop had stated that the Senate would not vote until revenue forecasts were released, reports that were being withheld by the director of the Michigan Department of Transportation. The
Michigan House of Representatives had already passed the measure while the bill was called "doomed" in the Senate. Michigan Governor
Rick Snyder supported construction of the new crossing in his first State of the State address on January 19, 2011. His plan would leverage Canadian money to receive a 160 percent match—totaling $2.2 billion—on funding from the Federal Highway Administration in a deal reached the week previous to the speech. In August 2011, Michigan State Senator
Mike Kowall, when asked by the
Windsor Star if enabling legislation for the bridge would currently pass, replied "absolutely not". In October 2011, the Michigan Senate "rejected a bill [that] would have allowed the state to accept $550 million from the Canadian government to fund the country's share" of the bridge. One commentator, Bill Mann, noted the rejection, saying "Canada calls the new bridge its biggest infrastructure priority and has even offered to pay for the span. But pesky U.S. special-interest politics intrude once again", as he reviewed a number of "U.S. government actions (and inactions) that show little concern about Canadian concerns". Mann drew from a ''
Maclean's'' article sub-titled "We used to be friends" about U.S.–Canada relations after the
Keystone Pipeline, the bridge, and other "insulting" decisions. In June 2012, Canadian Prime Minister
Stephen Harper and Michigan Governor Rick Snyder announced an agreement allowing the project to proceed. The Canadian federal government would fund bridge construction, land acquisition in Michigan and the construction of Interstate 75 on-ramps. The Canadian contribution will be repaid from bridge tolls collected on the Canadian side, and no tolls will be charged on the U.S. side. The crossing agreement also included community benefits for residents on both sides of the Detroit River, including improvements to local neighbourhoods affected by bridge construction. Although paid for by Canada, the bridge would be owned equally by Canada and the state of Michigan.
Approvals and land acquisition On April 12, 2013, the
Obama administration granted Michigan the permit required to build the bridge, allowing construction to go forward once details were finalized. In May 2014, the
United States Coast Guard issued a bridge permit, the final federal approval required. The Canadian government allocated million to begin land acquisition on the Detroit side on May 22, 2013. In January 2015,
Parsons Corporation was named the general engineering consultant for the bridge. On February 18, 2015, Minister of Transport
Lisa Raitt announced Canada would fund the construction of a customs plaza on the U.S. side of the bridge in Detroit's
Delray neighborhood. The plaza would have a budget of around million, and be recouped through tolls. The U.S.
Department of Homeland Security would provide a first-year investment of million, and an "ongoing annual requirement" of million, to cover the plaza's operational and staffing costs. On May 14, 2015, during an event attended by Canadian Prime Minister Stephen Harper, it was officially announced that the bridge would be known as the
Gordie Howe International Bridge after Canadian
ice hockey player
Gordie Howe, whose career included twenty-five years with the
Detroit Red Wings. In July 2016, it was announced many properties that would be required to build the bridge were still in the hands of private landowners. Some properties on the American side of the river were owned by Manuel Moroun, owner of the Ambassador Bridge. An estimated 30 of the 900 properties needed were considered to be problems if the owners resist selling. In July 2016, the CBC reported
Dwight Duncan, the former finance minister for Ontario had advised the Government of Canada to consider buying the Ambassador Bridge from Moroun. In a joint statement released after a meeting between newly elected U.S. president
Donald Trump and Canadian prime minister
Justin Trudeau on February 13, 2017, the two governments reiterated the support of the "expeditious completion" of the project. It was listed as a priority infrastructure project by the Donald Trump administration. In June 2017, the City of Detroit sold 36 city-owned parcels of land, underground assets and five miles of city-owned streets in the Delray neighborhood, which is the site of the U.S. Customs facility. A million neighborhood improvement fund for the neighborhood was set up. Residents of the area can stay and have their home renovated or move to a renovated home in a different neighborhood. In May 2018, the
Michigan Court of Appeals ruled against Moroun's attempt to stop expropriations on the Michigan side of the river, allowing construction of the U.S. plaza to begin.
Construction On July 5, 2018, WDBA was announced the consortium "Bridging North America" had been awarded the bridge contract, using a
design, build, finance, operate and maintain structure. The consortium consisted of
AECOM for design;
Dragados Canada,
Fluor Corporation, and
Aecon for construction; and
ACS Infrastructure, Fluor, and Aecon for operations and maintenance. Following construction, Bridging North America will receive monthly payments for operating and maintaining the bridge over a 30 year period. Construction began on July 17, 2018, with groundbreaking by Minister of Infrastructure
Amarjeet Sohi and Michigan Governor Rick Snyder. On September 28, 2018, the WDBA announced the project would cost CA$3.8 billion to construct, In 2019, preparatory work for major construction continued, with cleaning of
contaminated land. An effort by the
Michigan Republican Party to prevent MDOT spending money on the bridge (even if MDOT would later be reimbursed by Canada) was reversed, allowing the project to continue. million of community benefits for local residents on both sides of the Detroit River was also announced. In 2020, the design of new pedestrian bridges over
Interstate 75 were unveiled, and work began on the foundations for the bridge towers. Construction was impacted by the
COVID-19 pandemic, with changes to working practices, travel restrictions and material shortages. In January 2021, foundation work for the bridge towers had been completed, and construction of the bridge towers was underway. In March 2021, work began to construct the buildings in the Canadian port of entry. By November 2022, over of the bridge towers had been completed. In May 2023, installation of the cables used to hold up the future bridge deck began. The US bridge tower reached its final height of in August 2023, with the Canadian bridge tower completed in December 2023. In October 2023, the WDBA explained that major construction would likely be completed by the end of 2024, with elements such as signs and lighting taking another six months to install. WDBA also noted that around 2,300 people were working on the site at the peak of construction. CA$700 million of additional costs would be met by the Canadian government. It was also confirmed that the bridge deck would be completed in 2024. The occasion was marked with a handshake between a Canadian and an American steelworker. and planning to test the lighting on the bridge. , major construction of the bridge has been completed, with officials stating in October 2025 that it will not be open to traffic until "early 2026".
Drew Dilkens, the
mayor of Windsor, described the timing of the anticipated opening as "dreadful", given the ongoing strains in bilateral relations between the United States and Canada.
Trump administration interference On February 8, 2026, U.S. president Donald Trump threatened to block the opening of the bridge, citing Canada's recent trade developments with China and the alleged one-sided nature of the contract (wherein Canada gains all revenue from bridge tolls to pay back construction costs). Trump's announcement was criticized by politicians, business leaders and industry groups. The following day, Prime Minister
Mark Carney discussed the bridge with Trump, detailing the joint ownership of the bridge, that construction used Canadian and U.S. steel and workers, and that Canada paid for construction.
The New York Times subsequently reported that billionaire
Matthew Moroun (who owns the Ambassador Bridge) had lobbied the Trump administration prior to Trump's announcement. The
ranking member of the United States
House Oversight Committee,
Robert Garcia, opened an investigation into Commerce Secretary
Howard Lutnick’s earlier meeting with Moroun, sending Lutnick a letter requesting communications related to that meeting. Filings released February 20 showed that Moroun donated million to
MAGA Inc., a Trump-affiliated
super PAC, less than a month before Trump's announcement.
Announcement of toll rates In March 2026, bridge operators announced fees of less than half those charged for the Ambassador Bridge and cheaper than those for the
Detroit-Windsor Tunnel. One-way toll rates were announced as US$5.75 or CA$8 for passenger vehicles, and commercial vehicles as US$8.75 or CA$12 per axle. When towing a small trailer, an additional toll of US$5.75 or CA$8 is applied per trailer. A 25% discount will be applied for electronic pass holders reducing the cost to US$4.35 or CA$6 for passenger vehicles, and reducing commercial vehicle tolls to US$6.90 or CA$9 per axle. Use of the bicycle and walking path will be free. and the publicly-owned Detroit-Windsor Tunnel (US$9 or CA$8.25 for passenger vehicles, and commercial vehicles ranging from US$10 to US$44 or CA$11.75 to CA$62.35). In April, the company responsible for the Ambassador Bridge announced that it will be reducing pre-paid tolls for cars and motorcycles by almost half (US$5.50 US or CA$7.50), with cash rates will remain unchanged for passenger vehicles. ==Design==