Interstate 70

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Interstate 70
Primary Interstate

Length:

2173 mi (3520 km)
Major cities/towns: Grand Junction, CO

Denver, CO
Aurora, CO
Topeka, KS
Kansas City, KS
Kansas City, MO
St. Louis, MO
Indianapolis, IN
Dayton, OH
Columbus, OH
Wheeling, WV
Hagerstown, MD
Frederick, MD
Baltimore, MD

Established:  
Direction: East-West
Western Terminus: Cove Fort, UT
Eastern Terminus: Baltimore, MD
States traversed: Utah
Colorado
Kansas
Missouri
Illinois
Indiana
Ohio
West Virginia
Pennsylvania
Maryland
INTERSTATE JUNCTIONS
JUNCTION EXIT #
I-15 UT 0
I-25 CO 274
I-35 MO 1-2
I-29 MO 2
I-64 MO 251-IL 3
I-55 MO 251-IL 20
I-44 MO 251-State line
I-57 IL 92-98
I-74 IN 73
I-55 IN 80-82
I-75 OH 33
I-71 OH 98-102
I-77 OH 179
I-79 PA 18-22
I-76 PA 60-147
I-99 PA 130
I-68 MD 1
I-81 MD 26
Legend
  deleted (no longer in system)   unconstructed
  closed   crossing with no access
  begin/end concurrency, bold route is carried through
  a bold route on white background indicates termini.
BROWSE STATE HWYS
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Interstate 70 (abbreviated I-70) is a long interstate highway in the United States. It runs from Cove Fort, Utah at Interstate 15 to a Park and Ride in Baltimore, Maryland.

The Fort Henry I-70 bridge across the Ohio River, Wheeling, West Virginia
Enlarge
The Fort Henry I-70 bridge across the Ohio River, Wheeling, West Virginia
I-70 looking westbound near Mile 326, Wabaunsee County, Kansas
Enlarge
I-70 looking westbound near Mile 326, Wabaunsee County, Kansas

Contents

Length

Miles km state
232 376 Utah
451 731 Colorado
424 687 Kansas
252 408 Missouri
156 253 Illinois
157 254 Indiana
225 365 Ohio
14 23 West Virginia
168 272 Pennsylvania
94 152 Maryland
2,173 3,520 Total

Major cities along the route

Intersections with other Interstates

Location of Interstate 70
Enlarge
Location of Interstate 70

Spur routes


Three-digit Interstates from Interstate 70
I-170 Missouri
I-270 Colorado - Illinois-Missouri - Maryland - Ohio
I-370 Maryland
I-470 Kansas - Missouri - Ohio-West Virginia
I-670 Ohio - Kansas-Missouri
past/future I-170: Maryland

Shunpiking the Pennsylvania Turnpike

Shunpiking the Interstate 70 portion of the Pennsylvania Turnpike via Interstate 68 and Interstate 79 is actually shorter than using the Turnpike. From Hancock, Maryland to Washington, Pennsylvania using the Turnpike the route is 155 miles (250 km), while the Shunpiking route from Hancock, Maryland to Washington, Pennsylvania via Morgantown, West Virginia is 151.8 miles (244 km). The speed limit is also higher on the Shunpiking route as West Virginia has a speed limit of 70 mph (110 km/h).

Notes

  • When I-70 leaves the Pennsylvania Turnpike in Breezewood, Pennsylvania, there is a sign of a policeman pointing at you saying, "You! Slow Down!" You then have to drive a few blocks on US 30 before returning to I-70. This is a rare instance of a traffic light on an interstate. This could be fixed by building a direct connection between the PA Turnpike and the freeway section of I-70. However, it is argued that building a direct connection between the two would disrupt the economy in Breezewood, which serves motorists passing through the town.
  • I-70 was originally supposed to intersect with Interstate 95 in Baltimore. Due to opposition from environmental groups, this plan was scrapped. The intersection to I-95 and the spur route to downtown (I-170) had already been built before plans were cancelled. The signs for I-170 are now replaced with signs for US 40, and I-70 terminates at the exit for Security Boulevard in the western suburb of Woodlawn. The pavement of the interstate runs into a Park and Ride. The only remaining sign of the planned extension into downtown is an exit ramp to nowhere on I-95.
  • The aforementioned I-170 ends shortly beyond the US 1 (Fulton Avenue/Monroe Street) junction. No traffic is allowed on this part of the freeway (all traffic must utilize the exit ramp back to surface streets and US 40), although streetlights and an empty sign bridge serve as proof that I-170 was to be extended beyond this point, along with vacant ramps to/from US 1. After the I-70 extension was scrapped, I-170 was to continue towards I-95 and be renamed I-595. After that plan fell through, US 40 was rerouted to the old I-170 freeway. A ghost ramp onto southbound I-95, the most obvious clue that I-70/I-595 was planned to intersect there, has been demolished.
  • At Frederick, Maryland, I-70 split into two branches: I-70N, which led into Baltimore, and I-70S, which took a path into the Washington, D.C. area. I-70N is now I-70, while I-70S has been renamed I-270. The I-70S designation was also used for the current I-70 freeway in Western Pennsylvania. (There are signs along US 40 in Baltimore that still depict the I-70 freeway as I-70N. Trucks are directed onto it via I-695.)
  • I-70 went through Pittsburgh, Pennsylvania at one point; its original route has been incorporated into I-376, as well as parts of I-76, I-79 and I-279.
  • What had been planned as I-470 around Denver, Colorado exists in three sections: CO 470 (main), E-470 (eastern extension) and W-470 (western extension). There are no immediate plans to promote the 470s (as they are called in Denver) to Interstate status.
  • The Eisenhower Tunnel on I-70 is the highest vehicular tunnel in the world, and the longest tunnel built under the Interstate program.
  • In Kansas City, Missouri, I-670 cuts directly through the downtown while I-70 bypasses the taller buildings a few blocks north. Westbound I-670 is also designated Alternate I-70 making this the only permanent "alternate" interstate in the country. The pair, along with US 71, US 24, US 40, US 169, I-35, and I-29, creates the downtown "alphabet" loop. Most of the interstates in this loop are in their second mile, so all exits (no matter the which interstate carries the road) are numbered 2 and suffixed with every letter of the alphabet except I, O and Z.
  • In Saint Louis, Missouri, I-70 spawns two child routes: I-170, or the Innerbelt Expressway, and I-270, or the American Veterans Memorial Highway. In addition to the two child routes, people often confuse Missouri Route 370 to be I-370. The 12-mile (19-km) freeway gives area commuters an alternate route across the Missouri River, allowing them to avoid the congestion on I-70's Blanchette Bridge crossing of the Missouri River. Route 370 runs from I-270 at the Bridgeton/Hazelwood border (at Exit 22B) to I-70 in St. Peters (at Exit 224).
  • The highway gave its name to the "I-70 Killer," a serial killer who committed a string of murders within a few miles of it in several Midwestern states in the 1980s. No suspect has ever been apprehended despite the widespread publicity the murders have generated, including their being featured several times on the television show America's Most Wanted.
  • Colorado I-70 between the Loveland Pass and Grand Junction, Colorado is one of the few stretches of Interstate that regularly remains closed for days at a time, as it passes through areas of the Rocky Mountains that receive large amounts of snowfall and are notoriously prone to avalanches. Since I-70 is the sole surface road connecting ski resorts such as Keystone and Aspen with Denver, those who can afford to do so usually fly into the ski towns' small airports.
  • I-70 through Glenwood Canyon was the last section of I-70 to be completed. The 15 mile (24 km) stretch was completed in 1992 and was an engineering marvel due to the extremely difficult terrain and narrow space in the canyon, which requires corners that are sharper than normal Interstate standards. There are three eastbound and two westbound tunnels, and much of the highway is elevated above the Colorado River. The speed limit in this section is 50 mph (80 km/h) due to the limited sight distance and sharper corners. Great care was taken to not destroy the local ecosystem with the building of the road. All rest areas through this stretch use reclaimed water.
  • In Utah, I-70 between the towns of Green River and Salina, a distance of 108 miles (174 km), has no services, the longest such stretch in the interstate system.

Reference


  • 2005 Rand McNally "The Road Atlas 2005" - newest feature- interstate mileage by state

See also

Interstate Highways in West Virginia


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30 35 37 39 40 43 44 45
49 55 57 59 64 65 66 68
69 70 71 72 73 74 75 76 (W)
76 (E) 77 78 79 80 81 82 83
84 (W) 84 (E) 85 86 (W) 86 (E) 87 88 (W) 88 (E)
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99 238 H-1 H-2 H-3
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