July 16: A 35-mile section of I-95 between Fredericksburg and Ashland in Virginia.
July 16: A 4.2-mile stretch of I-70 from the Blue River to the Blue Ridge Mall in Kansas City, Missouri.
August 13: 11-mile stretch of I-75 south of Findlay, Ohio.
August 16: Completion of the Capital Beltway, with ceremony in Maryland*
August 18: First Interstate expressway across Illinois, a combination of I-80 and I-55
September 25: The Butte Urban segments of I-15 and I-90 in Montana*
October 2: A twin-bridge segment of I-20 (the R. L. Thornton Freeway) in Dallas, Texas
October 5: I-74 between Galesburg, Illinois, and Knoxville, Tennessee*
October 5: A 112-mile stretch of I-94 west of Mandan, North Dakota.*
October 7: Dartmouth Avenue Bridge across the Mississippi River for I-94 in Minneapolis, Minnesota*
October 9: I-95 between Thurbers Avenue and Elmwood Avenue in Providence, Rhode Island
October 11: I-25 from Wellington, Colorado, to Cheyenne, Wyoming*
October 14: I-90/94 between Wisconsin Dells and Tomah, Wisconsin.
October 14: The final section of I-94 in St. Clair County, Michigan*
October 15: Atlanta's Downtown Connector and interchange, including the I-20 West Expressway in Georgia*
October 15: I-465 between U.S. 31 and Ind. 100, giving Indianapolis, Indiana, its first belt route around the city.
October 19: I-80 from the George Washington Bridge to the Garden State Parkway in New Jersey
October 23: 15.5-mile segment of I-55 southwest of the Dan Ryan Expressway, with ceremony at the Damen Avenue interchange*
October 24: The Southwest Expressway (I-55, now the Stevenson Expressway) in Chicago from the Dan Ryan Expressway to U.S. 66 at the Cook-DuPage County line in Illinois*
October 27: Burns Harbor interchange of the Indiana Toll Road (I-90) near east Gary and 5.1-mile section of I-80/94 between the toll road and Broadway in Gary.
October 29: I-15 from 5th South and 2nd West to 24th North and Beck Street in Salt Lake City, Utah
October 29: Section of I-95 through Smith Hill in Providence, Rhode Island*
October 30: I-89 Bolton to Richmond, Vermont*
October 31: I-95 between Woodbridge and Quantico, Virginia
November 1: I-80 over Donner Summit in California
November 1: I-95 from Fairfield-Newport, Maine*
November 4: I-80 from Fernley to Wadsworth in Nevada
November 10: I-17, the Black Canyon Freeway, north of Dunlap Avenue in Phoenix, Arizona
November 11: I-93 from New Hampton through Holderness, New Hampshire.
November 11: I-35 from Mission Creek to Pine City, Minnesota
November 16: I-64 between the Watterson Expressway and the Jefferson Freeway in Louisville, Kentucky
November 19: I-71 between Columbus and Cincinnati, Ohio*
December 14: I-40 between Memphis and Braden, Tennessee
December 15: I-95 from Hopkinton to Groton, Rhode Island
December 18: The final 22-mile segment of I-95 between Washington, DC, and Richmond, Virginia, opened from Fredericksburg and Triangle*
December 21: I-81 in the Roanoke area of Virginia
December 30: 6.5 segment of I-77 in Wood County, West Virginia.