Template:Main Page/Historic byways/September

• Sept. 1, 2018 – The Central Florida Expressway Authority begins accepting E-ZPass as a form of payment along its toll roads.
• Sept. 2, 1935 – A Category 5 hurricane destroys the Overseas Railroad in Florida. The state purchases the rail line to reconstruct it as the Overseas Highway.
• Sept. 3, 1959 – The southern extension of the Alaskan Way Viaduct opens in Seattle, completing the freeway and easing traffic congestion through the city.
• Sept. 4, 1923 – The Pacific Highway is formally dedicated during a ceremony at the Peace Arch in Blaine, Washington. The event is attended by 60,000 people.
• Sept. 5, 2020 – The first section of the Winston-Salem Northern Beltway is opened to traffic in Winston-Salem, North Carolina between U.S. Route 421 and U.S. Route 158.
• Sept. 6, 1962 – Drilling begins on the second bore for the Allegheny Mountain Tunnel (pictured) on the Pennsylvania Turnpike.
• Sept. 7, 2007 – Signage for the Highway of Heroes is unveiled to the public and erected on Ontario Highway 401 by the Ministry of Transportation of Ontario.
• Sept. 8, 1971 – Peter Burtniak replaces Joseph Borowski as Minister of Highways of the 'Manitoba Department of Infrastructure.
• Sept. 9, 1927 – The Arizona State Highway System is established. Eleven state routes and five U.S. Highways are initially designated.
• Sept. 10, 1968 – A new section of Interstate 24 is opened to traffic across the Georgia–Tennessee state line between U.S. Route 41 and Interstate 59.

• Sept. 11, 1985 – A proposed southern extension of the Blue Ridge Parkway to Interstate 75 near Marietta, Georgia is formally cancelled by the federal government.
• Sept. 12, 1991 – The final traffic light on Interstate 90 is ceremonially retired in the town of Wallace, Idaho.
• Sept. 12, 1993 – The Lacey V. Murrow Memorial Bridge, a floating bridge carrying eastbound traffic on Interstate 90 from Seattle to Bellevue, Washington, is reopened after major repairs following its 1990 sinking.
• Sept. 13, 1976 – Interstate 35W in Kansas is renunmbered to Interstate 135, to conform with new AASHTO guidelines discouraging suffixed Interstates.
• Sept. 14, 1913 – The finalized route of the Lincoln Highway (pictured) between New York City and San Francisco is announced by the Lincoln Highway Association in Indianapolis.
• Sept. 15, 1978 – The last section of the All American Freeway is completed in North Carolina between Fayetteville and Fort Bragg.
• Sept. 16, 1965 – The Outdoor Advertising Control Bill, which will later become the Highway Beautification Act, is passed in the U.S. Senate by a vote of 63 to 14.
• Sept. 17, 1952 – A new section of U.S. Route 66 in Arizona, which bypasses Oatman, is opened to traffic between Topock and Kingman.
• Sept. 18, 1992 – The Arizona Department of Transportation officially retires the U.S. Route 666 designation and renumbers it as a southern extension of U.S. Route 191.
• Sept. 19, 2018 – The New York State Department of Transportation approves the conversion of State Route 895 in The Bronx from a freeway into a surface street.
• Sept. 20, 1963 – A law is passed by California State Legislature authorizing the 1964 state highway renumbering. Several U.S. Highways are removed in favor of Interstate Highways.

• Sept. 21, 2022 – Following a ruling by U.S. District Court Judge William E. Smith, the state of Rhode Island is forced to stop charging truck-only tolls.
• Sept. 22, 2022 – Interstate 95 is connected to the Pennsylvania Turnpike in Bristol Township, Pennsylvania (pictured), concluding the last construction project funded by the Federal Aid Highway Act of 1956.
• Sept. 23, 2022 - British Columbia Highway 8 reopens over the Nicola River after extensive repairs of damage caused by the November 2021 Pacific Northwest floods.
• Sept. 24, 2022 – The entirety of the Fall Line Freeway in Georgia between Columbus and Augusta is designated State Route 540.
• Sept. 25, 1967 – Construction begins on Interstate 805 in San Diego, California, following a groundbreaking ceremony at El Cajon Boulevard and Boundary Street.
• Sept. 26, 1937 – In New Mexico, U.S. Route 66 is rerouted on a more direct alignment between Laguna and Santa Rosa, bypassing the older route through Santa Fe.
• September 27, 1968 – A bypass of Annandale, New Jersey opens as part of I-78, connecting two extant sections of the highway
• Sept. 28, 1955 – Final approval is given by the U.S. federal government to construct the Capital Beltway around Washington D.C.. The beltway will later be designated as Interstate 495.
• Sept. 28, 2007 – The eastern portion of the Trexlertown Bypass around Trexlertown, Pennsylvania opens to traffic, with US 222 routed onto the bypass
• September 29, 1966 – Existing sections of New York's I-87 and I-84 are extended from the Connecticut border and Croton Falls respectively to join at Brewster
• Sept. 29, 2005 – The western portion of the Trexlertown Bypass around Trexlertown, Pennsylvania opens to traffic, with PA 100 routed onto the bypass
• Sept. 30, 2000 – The New Jersey Turnpike Authority starts using E-ZPass as a means to collect electronic tolls along the New Jersey Turnpike.