Template:Main Page/Historic byways/January

• Jan. 1, 1969 – Several hundred miles of highways in Iowa are renumbered to allieviate confusion for the traveling public.
• Jan. 2, 1958 – The Connecticut Turnpike opens after nearly four years of construction.
• Jan. 2, 1974 - The National Maximum Speed Law is signed by president Richard M. Nixon mandating a national speed limit of 55 MPH.
• Jan. 3, 2003 – The northernmost segment of E-470 in Adams County, Colorado, opens providing a northern connection to Interstate 25.
• Jan. 4, 1975 – The Federal-Aid Highway Amendments of 1974 was signed into law by President of the United States Gerald Ford.
• Jan. 4, 2017 – Cashless tolling begins in the Brooklyn–Battery Tunnel.
• Jan. 5, 2013 – First Nations protesters blockade the Blue Water Bridge carrying Ontario Highway 402 as part of the Idle No More campaign.

• Jan. 6, 2024 – The Utah Department of Transportation holds the grand opening of the West Davis Corridor (State Route 177).
• Jan. 7, 1937 – The State Highway Commission of Kansas realigns some existing routes and establishes several new state highways.
• Jan. 8, 2013 – The final span of the Clive Avenue Bridge in East Chicago, Indiana, is felled by explosives.
• Jan. 9, 1971 – One of the first segments of Corridor B opens in Tennessee.
• Jan. 10, 1912 – The West Michigan Lake Shore Highway Association forms to promote a section of the road that would become U.S. Highway 31 in Michigan.
• Jan. 10, 2019 – The U.S. Route 301 toll road in Delaware opens to traffic

• Jan. 12, 1968 – A bypass of Hancock, New York opens, extending the Quickway west from Tyler Switch
• Jan. 12, 1970 – New Jersey's Middlesex Freeway is linked to the New Jersey Turnpike by a newly reconstructed exit 10 in Edison Township
• Jan. 13, 1974 – The southbound dual-dual setup of the New Jersey Turnpike is extended south from exit 10 to exit 9 in East Brunswick Township
• Jan. 14, 1970 – A dual-dual carriageway of the New Jersey Turnpike is opened between exit 10 at Woodbridge Township to exit 15E in Newark
• Jan. 15, 1981 – The final links of the Rochester Outer Loop, from NY 383 to Winton Road in Brighton, and the Genesee Expressway south to Clay Road (later Hylan Drive) in Henrietta, are opened.

• Jan. 16, 1967 – A short section of New York's Penn-Can Highway extends the existing highway in Syracuse from Calthrop Avenue to Adams Street
• Jan. 17, 1994 – The Northridge Earthquake results in massive damage to freeway infrastructure in the Los Angeles metro area, including a collapse of the Newhall Pass interchange.
• Jan. 18, 1952 – The New Jersey Turnpike is opened north of the Garden State Parkway, completing the highway
• Jan. 19, 1955 – After half a month of blockades from mayors in the New Jersey communities of East Orange and Bloomfield, extensions of the Garden State Parkway in Clifton, extending its termini north from Hazel Street to US 46 at exit 156 and south from Route 3 to the barricaded main section at Bloomfield Avenue in Bloomfield, bypass their blockades and allows the highway from Central Avenue in East Orange to open; exits in Bloomfield are barred from opening for another two days

• Jan. 21, 1955 – Two days after the highway's opening, an inspection of the Garden State Parkway in Bloomfield, New Jersey deems the highway safe, and Bloomfield mayor Donald E. Scott allows the highway's exits in his borough to open
• Jan. 24, 1963 – New Jersey's Middlesex Freeway is extended east from River Road in Piscataway to CR 501 in Edison Township
• Jan. 25, 1967 – An extension of Corning, New York's arterial opens from Painted Post to Campbell, later to become part of the Southern Tier Expressway

• Jan. 28, 1969 – The section of New York's Southern Tier Expressway from Owego (exit 65) to Apalachin (exit 66) opens
• Jan. 28, 2004 – The I-86 designation in New York is extended eight miles (13 km) eastward to NY 14 in Horseheads
• Jan. 30, 1975 – A gap in New York's Southern Tier Expressway between Belvidere to Almond is closed
• Jan. 31, 1973 – The easternmost section of Interstate 80 in New Jersey is extended eastbound from I-280 to US 202 in Parsippany-Troy Hills