Interstate 72
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Interstate72.png
Interstate 72 is an interstate highway in the midwestern United States. Its western terminus is in Hannibal, Missouri at an intersection with U.S. Highway 61; its eastern terminus is at Interstate 57 in Champaign, Illinois.
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1 Major Cities Along the Route |
Length
| Miles | km | state | |
| 4 | 6 | Missouri | |
| 182 | 295 | Illinois | |
| 186 | 301 | Total | |
Major Cities Along the Route
Intersections with other Interstates
- Interstate 55 in Springfield, Illinois (multiplex 6 miles)
- Interstate 57 in Champaign, Illinois
Noteable Bridges Along the Route
- Valley City Eagle Bridges (Valley City, Illinois) - 2 2-lane bridges (one bridge each direction) over the Illinois River
- Mark Twain Memorial Bridge (Hannibal, Missouri) - 1 4-lane bridge (2 lanes each direction) over the Mississippi River, river bottoms, and the Sny Levee.
Spur Routes
- Spur into Quincy, Illinois, I-172
Notes
- The concept of I-72 across Missouri was to create the Kansas City - Chicago Expressway, a rural 4-lane route between Kansas City, Missouri and Chicago, Illinois. This would reduce the amount of through traffic in the St. Louis, Des Moines, and Quad Cities metropolitan areas.
- The first (and only) exit west of the Mississippi River in Hannibal, Missouri is Exit 157 (MO 79). Based on this mile marker, the future western terminus of I-72 would be at Cameron, Missouri at the intersection with I-35.
- I-72 continues west of Hannibal, Missouri as US 36. In 2004, US 36 was upgraded to a 4-lane expressway between US 61 and US 24 (7 miles). Also, an interchange with MO 15 was installed in Shelbina, Missouri. Four miles east of Macon, Missouri, US 36 resumes 4-lane expressway status to just east of New Cambria, Missouri. At the Linn County, Missouri line, US 36 is now 4-lane (completed in 2004) the rest of the way into St. Joseph, Missouri.
- Many highway mavens want to extend I-72 westward across Missouri and Kansas into Colorado. This would create an alternate route to Interstates 70 and 80. In addition, it would relieve traffic congestion on I-70 between Denver and St. Louis, and it would help relieve the traffic on I-80 between Omaha and Chicago, too.
- Likewise, an eastward extension is also envisioned for I-72. It would go across Indiana (multiplexing with Interstate 74 for some time), loop around Columbus, Ohio and end in Pittsburgh.
- In August 1957, Caltrans proposed I-72 for what is now I-580, but AASHO denied the request. The number I-5W was eventually approved on November 10, 1958.[1] (http://www.kurumi.com/roads/3di/i505.html#505ca)[2] (http://web.archive.org/web/20040205035850/http://nwindianahwys.homestead.com/CALI.html)
Reference
- 2005 Rand McNally "The Road Atlas 2005" - newest feature- interstate mileage by state
| Template:Ed divPrimary Interstate Highways | Missing image Interstate_blank.png Interstate Highway marker | ||||||
| 4 | 5 | 8 | 10 | 12 | 15 | 16 | 17 |
| 19 | 20 | 22 | 24 | 25 | 26 | 27 | 29 |
| 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) |
| 89 | 90 | 91 | 93 | 94 | 95 | 96 | 97 |
| 99 | 238 | H-1 | H-2 | H-3 | |||
| Unsigned Interstate Highways | |||||||
| A-1 | A-2 | A-3 | A-4 | PRI-1 | PRI-2 | PRI-3 | |
| Lists Two-digit Interstates - Three-digit Interstates Gaps in Interstates - Intrastate Interstates Interstate standards - Proposed Interstates | |||||||