Interstate 66
From Wikipedia, the free encyclopedia.
Interstate 66 is an interstate highway in the eastern United States. As indicated by its even route number, it runs in an east-west direction. Its western terminus is at Middletown, Virginia at an intersection with Interstate 81 (Map); its eastern terminus is at Washington, D.C. at an intersection with United States Highway 29. (Map)
Contents |
Length
| Miles | km | state | |
| 75 | 121 | Virginia | |
| 2 | 3 | District of Columbia | |
| 77 | 124 | Total | |
Major Cities Along the Route
Intersections with other Interstates
Interchanges from west to east
Virginia
| County | Municipality | Exit | |
|---|---|---|---|
| Frederick - Warren Boundary | 1 | Interstate 81 | |
| Warren | Front Royal | 6 | US 340 / US 522 |
| Warren | 13 | Route 79 to Route 55 | |
| Fauquier | 18 | Route 688 | |
| Fauquier | 23 | US 17 North / Route 55 West | |
| Fauquier | Marshall | 27 | Route 55 East / Route 647 (Business US 17) |
| Fauquier | Marshall | 28 | US 17 South / Business US 17 |
| Fauquier | 31 | Old Tavern Road (Route 245) | |
| Prince William | Haymarket | 40 | US 15 |
| Prince William | 43 | US 29 (Gainesville) | |
| Prince William | 44 | Prince William Parkway (Route 234 South) | |
| Prince William | 47 | Sudley Road (Route 234 North / Business Route 234) | |
| Fairfax | 52 | US 29 (Centreville) | |
| Fairfax | 53 | Sully Road (Route 28) | |
| Fairfax | 55 | Fairfax County Parkway (Route 7100) | |
| Fairfax | 57 | US 50 (Fair Oaks) | |
| Fairfax - Fairfax (City) Boundary | Fairfax (City) | 60 | Route 123 |
| Fairfax | Vienna | 62 | Nutley Street (Route 243) |
| Fairfax | 64 | Interstate 495 (Capital Beltway) + extra rush hour HOV exit (eastbound only) | |
| Fairfax | 66 | Leesburg Pike (Route 7) | |
| Fairfax | 67 | Route 267 to Dulles Toll Road (westbound only) | |
| Arlington | 68 | Westmoreland Street (eastbound only) | |
| Arlington | 69 | Lee Highway (US 29) / Washington Boulevard (Route 237) (eastbound) / Sycamore Street (westbound) | |
| Arlington | 71 | Fairfax Drive (Route 237) (eastbound only) / Glebe Road (Route 120) | |
| Arlington | 72 | Lee Highway (US 29) / Spout Run Parkway (eastbound only) | |
| Arlington | 73 | Lee Highway (US 29) / Key Bridge | |
| Arlington | 75 | Route 110 South (eastbound only) | |
District of Columbia
| County | Municipality | Exit | |
|---|---|---|---|
| Arlington - District of Columbia Boundary | Washington | 0* | US 50 West / Arlington Boulevard / George Washington Memorial Parkway (westbound only) |
| District of Columbia | Washington | 1* | Constitution Avenue (US 50 East) / Independence Avenue / E Street Expressway |
| District of Columbia | Washington | 2* | Rock Creek Parkway / Pennsylvania Avenue (eastbound) / Whitehurst Freeway (US 29) (westbound) |
- Exit number not signed, based on milepost
Spur Routes
None, although Interstate 266 was planned in northern Virginia and Washington, D.C. It was cancelled due to environmental concerns.
Extension projects
The U.S. Department of Transportation has had plans to extend I-66 westward across the country to California. Highway mavens have speculated as to where I-66 would go, such as the Corridor H Freeway in West Virginia and United States Highway 400 in Kansas. Due to various reasons, I-66 west of Wichita, Kansas has been killed. The main reason for that specific number was to capitalize off U.S. Highway 66 and was started by businessmen in Wichita.
Former Governor Paul Patton has written I-66 into law in Kentucky, with the routing being confirmed along the state's Hal Rogers Parkway (formerly Daniel Boone Parkway) and Louie B. Nunn Parkway (formerly Cumberland Parkway). Preliminary construction has started on a segment in Pulaski County. There would be a long section with a southwest-northeast trajectory required to connect with the existing I-66; many believe a lower number (there are no east-west Interstates numbered in the 50s) would make more sense for the Kentucky extension.
Notes
- Because I-66 is the only major highway running west from Washington, D.C., into Northern Virginia, traffic on the road is often extremely heavy. For decades, there has been talk of widening I-66 from 2 to 3 lanes each way inside the Capital Beltway (through Arlington, Virginia), although many Arlington residents are adamently opposed to this plan. Studies are being conducted by VDOT on the prospect of implementing this one-lane extension on westbound I-66 within the Beltway (thus alleviating congestion for people commuting away from DC).[1]
- Because of that heavy traffic, I-66 has HOV lanes.
- Between Route 234 in Manassas, Virginia and the Beltway, the left lane on eastbound I-66 is reserved for HOV-2 during morning rush hour, and the left lane on westbound I-66 is reserved for HOV-2 during evening rush hour.
- Within the Beltway (between the Beltway and the Theodore Roosevelt Bridge), the entire eastbound (inbound) roadway is reserved for HOV-2 and Dulles Airport traffic during morning rush hour, and the entire westbound (outbound) roadway is reserved for HOV-2 and Dulles Airport traffic during evening rush hour. This is readily and easily enforced, since no single-passenger vehicles are allowed to come onto the highway at all within the beltway in the direction of rush-hour traffic. These restrictions may result more in a displacement of rush-hour than in an alleviation; I-66 is observed as relatively clear where and when they are in place, and congested for some time before and after.
- This is the only 2 digit Interstate to enter the District of Columbia (other than the 100 yards (100 m) or so that I-95 passes through DC on the Woodrow Wilson Bridge). I-66 was planned to intersect I-95, before I-95 was rerouted to the east side of the Capital Beltway.
External links
- HOV schedule in Northern Virginia, from Virginia Dept. of Transportation
- Information on origin and plans of I-66
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| Primary Interstate Highways |  |
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| 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 |
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