List of gaps in Interstate Highways: Encyclopedia II - List of gaps in Interstate Highways - Freeway gaps

List of gaps in Interstate Highways - Freeway gaps

• Several Interstates in the southwest U.S. have at-grade intersections (including median breaks) with minor farm access roads. This is usually due to the lack of an old highway, and the need to provide access to property that was accessed via the road before it was upgraded to an Interstate.
• I-40 in the western Texas Panhandle has several driveways coming directly onto the interstate.
• I-70 uses part of US 30 along a surface road in Breezewood, Pennsylvania to get between the freeway heading south to Hancock, Maryland and the ramp to the Pennsylvania Turnpike. Local businesses have lobbied to keep the gap to avoid loss of business.
• I-78 travels along a one-way pair of surface streets, 12th Street and 14th Street, in Jersey City, New Jersey, between the end of the New Jersey Turnpike Newark Bay Extension and the Holland Tunnel.
• I-180 in Cheyenne, Wyoming has no parts built to freeway standards; in fact the interchange with I-80 is even a simple diamond interchange with two traffic lights on I-180, however it is expressway-quality with a few grade-separations.
• I-676 has a surface street section at the west end of the Ben Franklin Bridge in Philadelphia, Pennsylvania because of historically significant areas. Signage and the Federal Highway Administration consider I-676 to use the surface streets, but the Pennsylvania Department of Transportation may consider I-676 to stay on the freeway to end at I-95, with the surface streets and the bridge being only US 30, and the part in New Jersey being a different I-676.
• Interstate 690 in Syracuse, New York has a traffic light for one or two weeks each year, for buses to carry Great New York State Fair attendees from parking areas across the road to the fair.
• I-495 in New Jersey connects with I-495 in New York via a pair of one way streets in Manhattan. They couldn't build a freeway through Manhattan due to its high density and large number of buildings.

List of gaps in Interstate Highways - Undivided freeways

This section talks about Super-2s and other undivided freeway sections of the Interstate.

• I-93 is undivided through Franconia Notch State Park in northern New Hampshire. Used to be a true gap and is now a substandard portion of Interstate freeway.
• The Thousand Islands bridge of Interstate 81 has been undivided.

List of gaps in Interstate Highways - Drawbridges

• I-5 crosses the Columbia River from Portland, Oregon to Vancouver, Washington on the Interstate Bridge, a drawbridge.
• I-64/Hampton Roads Beltway crosses the South Branch of the Elizabeth River in Chesapeake, Virginia on the High Rise Bridge, a drawbridge.
• I-75 used to cross the Saginaw River in Saginaw, Michigan on the Zilwaukee Bridge, a drawbridge, but a new higher bridge was built.
• I-95 had a drawbridge over the St. Johns River in Jacksonville, Florida (Fuller Warren Bridge) until a new bridge was finished in 2002.
• I-95/I-495/Capital Beltway passes over the Potomac River on the Woodrow Wilson Bridge, a drawbridge, south of Washington, DC. A new higher bridge is being built, but it will still open for tall ships.
• I-95 had a drawbridge across the Hutchinson River in New York, New York until 1996.
• I-110 has a drawbridge across the Back Bay of Biloxi in Biloxi, Mississippi.
• I-264 has a drawbridge over the Elizabeth River in Norfolk, Virginia.
• I-278 has a drawbridge across the Bronx River in New York, New York.
• I-280 has a drawbridge (Stickel Memorial Bridge) over the Passaic River connecting Newark, New Jersey to Harrison, New Jersey.
• I-280 has a drawbridge (Craig Memorial Bridge) over the Maumee River in Toledo, Ohio; a non-drawbridge replacement will be finished in 2006.
• I-395 passes over the Potomac River on the 14th Street Bridge in Washington, DC, which used to be a drawbridge but is now inoperative (adjacent fixed spans constructed in the years leading up to the draw span's decommissioning have a clearance of 18 feet, so permanently shutting the draw span was no particular loss).
• I-695/Baltimore Beltway has a drawbridge over Curtis Creek south of Baltimore, Maryland, a bit to the west of the Francis Scott Key Bridge.

Adapted from the Wikipedia article "Freeway gaps", under the G.N U Free Docmentation License. Please also see http://en.wikipedia.org/wiki