New England Interstate Route 9
|Length:||447.58 mi (720.31 km)
Vermont: 47.15 mi (75.88 km)
New Hampshire: 110.00 mi (177.03 km)
Maine: 290.43 mi (467.40 km)
|Existed:||1922 – present|
|West end:||NY Route 7 in Hoosick, NY|
| I-91 in Brattleboro, VT
I-89 in Hopkinton, NH
I-93 in Concord, NH
Interstate 393 in Concord, NH
Spaulding Turnpike in Dover, NH
I-95 in Wells, ME
I-395 in Bangor, ME
|East end:||NB Route 1 in St. Stephen, NB|
Route 9 is a multi-state state highway in the New England region of the United States, running across the southern parts of New Hampshire, Vermont and Maine, and numbered, owned, and maintained by each of those states. Its number was assigned in 1922, when it was designated one of the New England Interstate Routes, also known as the Bennington-Wells Route. Much of the route remains intact in Vermont and New Hampshire. In Maine, however, Route 9 has since been extended eastward by about 270 miles (435 km) from its original terminus in Wells, through Biddeford, Portland, and Bangor, to the Canadian border in Calais.
Route 9 originally extended 167 miles (269 km) across the southern part of Vermont, New Hampshire, and Maine, from the New York-Vermont border in Bennington, via Brattleboro and Keene, to Wells. When New York first signed its state highways in 1924, the westward continuation of the route towards Troy was also designated as New York State Route 9. In 1927, however, because of the designation of U.S. Route 9, New York renumbered its former Route 9 as Route 7. By the beginning of 1934, Maine extended its portion of Route 9 by about 270 miles (430 km) to the Canadian border in Calais, creating an alternate route to U.S. Route 1.
Route description 
Vermont Route 9 begins at the New York state line in Bennington, Vermont, where it continues west as Route 7. It crosses the Connecticut River from Brattleboro, Vermont into Chesterfield, New Hampshire. Route 9 in Vermont is also known as the Molly Stark Byway.
The VT Route 9 section between the eastern outskirts of Bennington, Vermont and Searsburg, Vermont across Woodford Mountain is notorious for its steep and winding bends, which over the years have contributed to a number of tractor-trailer incidents on this stretch of the road.
||Bennington||0.0||0.0||NY 7||New York State Line.|
|Searsburg||18.3||29.5||VT 8||Northern terminus of VT 8.|
|Brattleboro||43.5||70.0||I-91||Exit 2 (I-91).|
|44.6||71.8||US 5 south||Southern terminus of concurrency.|
|46.9||75.5||US 5 north||Northern terminus of concurrency.
Connection to I-91 Exit 3.
|47.2||76.0||NH 9||New Hampshire State Line|
|Concurrency terminus • • Closed Unopened|
New Hampshire 
New Hampshire Route 9 runs through Keene, Concord and Dover. It runs concurrent with U.S. Route 202 for much of its path across the Granite State. The concurrent section of Route 202/9 between Hillsborough and Hopkinton, which passes through Henniker, is considered one of the most deadly sections of road in the state. Route 9 crosses the Salmon Falls River from Somersworth, New Hampshire into Berwick, Maine.
||Chesterfield||0.00||0.00||VT 9 (Chesterfield Road)||Vermont state line.|
|6.2||10.0||NH 9A||Western terminus of NH 9A.|
|8.1||13.0||NH 9A||Eastern terminus of NH 9A.|
|Keene||14.3||23.0||NH 10 south / NH 12 south / NH 101 east||Southern terminus of NH 9/NH 10/NH 12 concurrency.
Western terminus of NH 101.
|15.7||25.3||NH 12 north||Interchange; northern terminus of NH 9/NH 12 concurrency.|
|18.3||29.5||NH 10 north (Gilsum Rd.)||Northern terminus of NH 9/NH 10 concurrency.|
|Stoddard||30.4||48.9||NH 123 south||Southern terminus of concurrency.|
|31.5||50.7||NH 123 north||Northern terminus of concurrency.|
||Antrim||37.5||60.4||NH 31 south (Clinton Rd.)||Southern terminus of concurrency.|
|Hillsborough||41.2||66.3||NH 31 north (2nd New Hampshire Tpk.)||Northern terminus of concurrency.|
|42.8||68.9||US 202 south (Antrim Rd.)||Interchange; western terminus of concurrency.|
||Henniker||49.8||80.1||NH 114 (Bradford Rd./Maple St.)||Interchange|
|Hopkinton||53.6||86.3||NH 127 (Maple St.)||Southern terminus of NH 127.|
|57.3||92.2||I-89||I-89 Exit 5|
|58.4||94.0||NH 103 (Hopkinton Rd.)||Eastern terminus of NH 103.|
|59.3||95.4||I-89||I-89 Exit 4; southbound entrance/northbound exit only.|
|Concord||65.7||105.7||NH 13 (South St.)||Northern terminus of NH 13.|
|65.9||106.1||US 3 (S. Main St.)||Southern terminus of US 3/US 202/NH 9 concurrency.|
|66.2||106.5||US 3 north (N. Main St.) / US 202 east (N. Main St.)||Northern terminus of US 3 concurrency.
Eastern terminus of US 202 concurrency.
|66.4||106.9||I-93||I-93 Exit 14|
|67.9||109.3||NH 132 (East Side Dr.)||Southern terminus of NH 132.|
|70.0||112.7||NH 106 (Sheep Davis Rd.)||To I-393 Exit 3|
|Pembroke||71.1||114.4||I-393 west / US 4 west / US 202 west||Eastern terminus of I-393.
Western terminus of US 4/US 202/NH 9 concurrency.
|Epsom||76.3||122.8||NH 28 (Suncook Valley Hwy.)||Epsom Traffic Circle|
|79.9||128.6||NH 107 south||Western terminus of NH 107 concurrency.|
||Northwood||81.8||131.6||NH 107 north||Eastern terminus of NH 107 concurrency.|
|87.7||141.1|| US 4 east (1st New Hampshire Tpk.)
NH 43 south (Mountain Ave.)
|Eastern terminus of US 4 concurrency.
Northern terminus of NH 43.
|88.0||141.6||NH 202A (Strafford Rd.)||Southern terminus of NH 202A.|
||Barrington||92.6||149.0||US 202 east||Eastern terminus of concurrency.|
|93.9||151.1||NH 126 (Church St.)||Eastern terminus of NH 126.|
|96.7||155.6||NH 125 (Calef Hwy.)|
|Dover||102.6||165.1||NH 155 (Knox Marsh Rd.)||Eastern terminus of NH 155.|
|102.8||165.4||NH 16 (Spaulding Tpk.)||Spaulding Tpk. Exits 8E/8W.|
|103.7||166.9||NH 108 south (Central Ave.)||Southern terminus of concurrency.|
|104.4||168.0||NH 4 (Chapel St.)||Western terminus of NH 4.|
|106.5||171.4||NH 108 north (New Rochester Rd.)||Northern terminus of concurrency.
To NH 16/Spaulding Tpk. Exit 9 via Indian Brook Rd.
|Somersworth||109.2||175.7||NH 236 west (W. High St.)||Western terminus of concurrency.|
|109.7||176.5||SR 9 / SR 236||Maine state line.|
Related route 
New Hampshire Route 9A
|Length:||2.317 mi (3.729 km)|
New Hampshire Route 9A is a 2.32-mile (3.73 km) long secondary road in Chesterfield, New Hampshire. The route terminates at New Hampshire Route 9 at both ends and provides access to Spofford Lake from NH 9.
See also 
- U.S. Route 202, which runs concurrently with much of Route 9 in New Hampshire
- New York State Route 7, once part of Route 9 east of Troy, New York
- Vermont Route 279, a bypass of Route 9 around Bennington, Vermont
- 1934 Hammond's Auto Route Distance Map of Northern New England
- Molly Stark Byway Project
- New Hampshire Department of Transportation (2005). "NHDOT Route Log System" (Login required). Retrieved December 18, 2010.
|Browse numbered routes|
|← VT 8A||VT||VT 10 →|
|← US 5||NH||NH 10 →|
|← Route 8||N.E.||Route 10 →|