Interstate 93

From Wikipedia, the free encyclopedia.

Interstate 93 is an interstate highway in the New England section of the United States. Its southern terminus is in Canton, Massachusetts, in the Boston metropolitan area, at Interstate 95 (Map); its northern terminus is near St. Johnsbury, Vermont at Interstate 91.

Contents 1 Length 2 Major cities along the route 3 Intersections with other Interstates 4 Spur routes 5 Big Dig 6 Notes 7 See also 8 References

Length

Miles	km
47	76	Massachusetts
132	214	New Hampshire
11	18	Vermont
190	308	Total

Major cities along the route

• Boston, Massachusetts
• Manchester, New Hampshire
• Concord, New Hampshire

Intersections with other Interstates

• Interstate 95 in Canton, Massachusetts (Map)
• Interstate 90 in Boston, Massachusetts (Map)
• Interstate 95 in Woburn, Massachusetts (Map)
• Interstate 495 in Lawrence, Massachusetts (Map)
• Interstate 293 in Manchester, New Hampshire (Map)
• Interstate 89 in Concord, New Hampshire
• Interstate 393 in Concord, New Hampshire
• Interstate 91 in St. Johnsbury, Vermont

Spur routes

• Manchester, New Hampshire - I-293 (part of this route was originally called I-193)
• Concord, New Hampshire - I-393

	edit Three-digit Interstates from Interstate 93
I-293	New Hampshire
I-393	New Hampshire

Big Dig

Interstate 93 is famous for being reconstructed by the Big Dig, the most massive urban construction project in history. After this project was considered mostly complete in early 2005, the section of Interstate passing through central Boston, Massachusetts was largely underground. As of April 19, 2005, the tunnel is mostly complete, but greenification from the above-ground area that was removed because of the Dig has still to be completed. The entire project is to be completed in early-mid 2006. It is the most expensive road construction project in the USA.

No additional tolls have been placed upon use of Interstate 93, but as part of the Big Dig the Massachusetts Turnpike, a toll road and also Interstate 90 while it runs through the state, was extended to East Boston, the location of Logan Airport. Northbound Interstate 93 now connects with the Mass Pike in South Bay for access to South Boston and the airport. No toll is collected for traveling to the airport, but a toll of $3.00 is collected from motorists entering Interstate 90 at the airport.

Notes

• An 8 mile (13 km) section of I-93 through Franconia Notch State Park, called the Franconia Notch Parkway in New Hampshire, was constructed as a "Super-2" with a median divider. This was built as a compromise between the state's park department and highway officials. The speed limit on the Parkway is 45 mph (70 km/h). Originally, this section had its own exit number sequence, but they are now called Exit 34A, 34B, and 34C. This section is technically not part of I-93 and is not recognized by FHWA. I-93 is actually in two segments connected by the Franconia Notch Parkway. Signage should read "TO I-93" in this area but is inconsistent.
• A section of the highway south of Boston, beginning south of the Savin Hill overpass and ending just before the junction with Route 3, utilizes a "zipper lane," in which a movable barrier carves out a high occupancy vehicle lane in the non-peak side of the highway during rush hour.
• Hazardous cargoes are now prohibited from I-93 tunnels in Boston.
• I-93's original southern terminus was in Boston where it was to meet Interstate 95. However, when that route was cancelled through Boston and rerouted along Route 128 in the mid-1970s, I-93's route was extended an additional 18 miles down what was then just Route 3 from Boston to Braintree and then west along Route 128 to it's intersection with I-95 in Canton.
• I-93's route from Boston to Canton has also carried the U.S. Highway 1 designation since 1989. The US route's path was changed to assist truck traffic which was banned along much of the route's original path between Boston and I-95/Route 128 in Dedham.
• Many Road Enthusiasts would like to see I-93's route changed to take Massachusetts Route 3 south (Pilgrim's Highway) from Braintree to Cape Cod. The current I-93 from Braintree to Canton would receive an I-95 or I-93 spur designation under this idea. Alternatively, some have suggested I-93 stay where it is but the Braintree to Cape Cod route receive an I-93 spur designation, such as Interstate 193.
• There are two major park and ride facilities off I-93, the Anderson Regional Transportation Center in Woburn, Massachusetts, at Exit 37C, and the Quincy Adams Red Line (MBTA) subway station, at Exit 7 in Quincy

See also

• Tobin Bridge
• Zakim Bunker Hill Bridge
• Big Dig

References

• I-93 Northern Expressway on Bostonroads.com
• MA 3 Pilgrim's Highway on Bostonroads.com
• Misc I-93 posts on misc.transport.road newsgroup
• 2005 Rand McNally "The Road Atlas 2005" - newest feature- interstate mileage by state.

edit Primary Interstate Highways
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