139.70 mi
224.83 km

Home

Termini
RoadsAroundME		    
Route 100

 
LENGTH 139.70 mi / 224.83 km
SOUTH END Route 26, Portland
NORTH END US 202, Bangor
PLACES Portland, Falmouth, Cumberland, Gray, New Gloucester, Auburn, Lewiston, Greene, Monmouth, Winthrop, Manchester, Augusta, Vassalboro, Winslow, Waterville, Fairfield, Benton, Clinton, Burnham, Pittsfield, Detroit, Palmyra, Newport, Plymouth, Etna, Carmel, Hermon, Bangor
COUNTIES Cumberland, Androscoggin, Kennebec, Somerset, Waldo, Penobscot
CONCURRENCIES US 302, Portland (2.2 miles)
Route 9, Portland (0.1 miles)
Route 26, Portland to Gray (13.2 miles)
US 202, Gray to Augusta (47.9 miles)
Route 4, Gray to Auburn (16.0 miles)
Route 11, Auburn to Augusta (31.2 miles)
Route 135, Winthrop (0.2 miles)
Route 17, Manchester to Augusta (5.0 miles)
Route 9, Augusta (0.6 miles)
US 201, Augusta to Fairfield (22.4 miles)
Route 137 Business, Winslow to Waterville (0.8 miles)
Route 11, Waterville to Newport (29.0 miles)
 Route 139, Fairfield to Benton (2.2 miles)
US 2, Newport to Bangor (27.7 miles)
Route 7, Newport (3.5 miles)
RIVER CROSSINGS Presumpscot River, Falmouth
Piscataqua River, Falmouth
Little Androscoggin River, Auburn
Androscoggin River, Auburn to Lewiston (James B. Longley Memorial Bridge)
Hooper Brook, Greene
Kennebec River, Augusta (Memorial Bridge)
Sebasticook River, Winslow
Kennebec River, Winslow to Waterville
NAMES Forest Avenue, Allen Avenue, Auburn Street (Portland)
Gray Road (Falmouth)
Portland Road, Main Street, Lewiston Road (Gray)
Washington Street, Minot Avenue, Court Street (Auburn)
Main Street (Lewiston)
Western Avenue, Memorial Drive, Bangor Street, Riverside Drive (Augusta)
Augusta Road (Vassalboro to Winslow)
Bay Street (Winslow)
Front Street (northbound only), Main Street (southbound only), College Avenue (Waterville)
Main Street, Bridge Street (Fairfield)
Neck Road, Bangor Road (Benton)
Main Street, Bangor Road (Clinton)
Main Street (Burnham)
Burnham Road, Main Street (Pittsfield)
Main Street, Elm Street (Newport)
Stage Road (Etna)
Main Road (Carmel)
Outer Hammond Street, Odlin Road, Hammond Street (Bangor)
HIGHEST AADT overall: 34,930 at Armory St., Augusta (2005)
non-multiplex: 20,560 at Washington Ave., Portland (2006)
LOWEST AADT 2,010 at Route 143, Etna (2006)

History

Guide

Route 100 connects all of Maine's major cities. As a result of routing changes of other routes in the 1920s and 1930s, all but a small section in Portland is concurrent with other routes - notably US 302, Route 26, US 202, US 201, Route 11 and US 2.

Junction List

Location mi Routes / Destination Other Notes
Portland 0.0 Route 26 - Cumberland Ave.
Portland 0.1 Park Ave. / Portland St.
Portland 0.3 High St.  
Portland 0.3 State St. / Kennebec St. / Marginal Way
Portland 0.5 I-295 / US 1 - South Portland, Brunswick  
2.2-mile multiplex with US 302 begins
Portland 0.7 Bedford St. / Baxter Blvd.
Portland 0.8 Falmouth St. / Preble St. Ext.
Portland 1.0 Dartmouth St.
Portland 1.1 Noyes St. one-way, no turns from Forest Ave.
Portland 1.2 Ashmont St. / Belmont St.
Portland 1.5 Route 9 west - Woodford St. / Deering Ave. Woodfords Corner
Portland 1.6 Route 9 east - Ocean Ave. / Vannah Ave. / Saunders St.
Portland 2.1 Walton St.
Portland 2.5 Read St.  
Portland 2.6 Stevens Ave. / Bishop St.
Portland 2.7 US 302 west - Forest Ave. - Maine Turnpike, Windham Morrills Corner
Route 100 turns north onto Allen Ave.
2.2-mile multiplex with US 302 ends
Portland 2.9 Woodlawn Ave.  
Portland 3.6 Route 26 east - Washington Ave.
Allen Ave.		 Route 100 turns west onto Washington Ave.
13.2-mile multiplex with Route 26 begins
Portland 3.7 Washington Ave. Route 100 bears onto Auburn St.
Portland 4.7 Lambert St.  
Portland 5.0 Summit St.  
Portland 5.2 Washington Ave. Ext.  
Falmouth 6.0 I-95 / Maine Turnpike - Portland, Lewiston
Falmouth 6.2 Leighton Rd.
Falmouth 6.9 Mountain Rd. / Falmouth Rd.
Falmouth 9.3 Hurricane Rd.  
Cumberland 10.5 Range Rd.  
Cumberland 11.4 Mill Rd.  
Cumberland 11.8 Blackstrap Rd. / Skillin Rd.  
Gray 13.4 Dutton Hill Rd.  
Gray 14.3 Whitney Rd.  
Gray 15.1 Hunts Hill Rd.  
Gray 16.7 US 202 west / Route 4 south / Route 26A / Route 115 west - West Gray Rd. - Windham, I-95 / Maine Turnpike
Route 115 east - Yarmouth Rd. - Yarmouth		 Route 100 merges onto Main St.
47.9-mile multiplex with US 202 begins
16.0-mile multiplex with Route 4 begins
Gray 16.8 Route 26 north - Shaker Rd. - Poland, Norway
Brown St.
13.2-mile multiplex with Route 26 ends
Gray 18.8 Weymouth Rd.  
Gray 19.2 Mayall Rd.  
New Gloucester 20.0 Morse Rd.  
New Gloucester 20.7 Gloucester Hill Rd.  
New Gloucester 21.3 Bennett Rd.  
New Gloucester 21.9 Chandler Mill Rd. / Church Rd.  
New Gloucester 24.2 Route 231 - Intervale Rd. - Pownal, Yarmouth
Rowe Station Rd. / Bald Hill Rd. 		 
New Gloucester 24.5 Peacock Hill Rd.  
Auburn 26.2 Eastman Lane  
Auburn 26.8 Route 122 - Poland Spring Rd. - Poland
Moose Brook Rd.		  
Auburn 27.5 Kitty Hawk Ave.
Auburn 27.8 I-95 - Maine Turnpike - Portland, Augusta
Auburn 28.1 Hardscrabble Rd.  
Auburn 28.3 Beech Hill Rd. / Danville Corner Rd.  
Auburn 29.3 Hackett St. northbound only
Auburn 30.2 Rodman Rd. southbound only
Auburn 31.9 Route 11 south / Route 121 - Minot Ave. - Minot, Mechanic Falls Route 100 bears from Washington St. onto Minot Ave.
31.2-mile multiplex with Route 11 begins
Auburn 32.0 High St.
Auburn 32.3 Elm St.
Auburn 32.7 Route 4 north - Union St. - Turner
Court St.		 Route 100 turns right onto Court St.
16.0-mile multiplex with Route 4 ends
Auburn 32.7 Spring St.
Auburn 32.8 High St.  
Auburn 32.8 Turner St. / Mechanics Row
Auburn 32.9 Route 136 - Main St. - Durham
Great Falls Plaza
Lewiston 33.1 Route 196 - Lincoln St. - Lisbon, Brunswick
Lewiston 33.2 Canal St. one-way - no entrance onto Main St.
Lewiston 33.3 Lisbon St. one-way - no turns onto Lisbon St.
Lewiston 33.3 Park St. one-way - no entrance onto Main St.
Lewiston 33.4 Middle St. one-way - no entrance onto Main St. from northbound Middle St.
Lewiston 33.4 Bates St. one-way - no turns onto Bates St. southbound
Lewiston 33.5 Route 126 - Sabattus St. - Sabattus, Gardiner
Hammond St.
Lewiston 33.6 Union St.  
Lewiston 33.7 High St.
Lewiston 33.7 Holland St.  
Lewiston 33.9 Frye St.  
Lewiston 34.0 Riverside St.  
Lewiston 34.2 Russell St. / Veterans Memorial Bridge - Auburn
Lewiston 34.4 Pettingill St.  
Lewiston 34.6 Strawberry Ave.  
Lewiston 34.9 Montello St.  
Lewiston 35.2 Mollison Way
Lewiston 35.3 Northwood Rd.  
Lewiston 36.0 Stetson Rd.  
Lewiston 36.3 Nimitz St.  
Lewiston 37.3 Merrill Rd.  
Greene 39.3 Sullivan Rd.  
Greene 39.7 Main St. / Meadow Hill Rd.  
Greene 40.3 Main St.  
Greene 40.9 Patten Rd.  
Greene 41.2 Allen Pond Rd.  
Greene 41.6 Main St.  
Greene 43.9 Wiley Rd. / Line Rd.  
Leeds 44.3 Leeds Junction Rd.  
Leeds 45.2 Route 106 - Leeds Center, Livermore Falls  
Monmouth 46.0 Blue Rock Rd. / Norris Hill Rd.  
Monmouth 47.4 Bog Rd. / Blue Rd.  
Monmouth 47.7 Back St.  
Monmouth 49.3 Route 132 - Main St.
Blaisdell Rd.		  
Monmouth 49.6 Old Lewiston Rd.  
Monmouth 49.9 Annabessacook Rd. / North Main St.  
Winthrop 51.3 Cross Rd.  
Winthrop 52.4 Old Lewiston Rd. / Annabessacook Rd.  
Winthrop 52.7 Route 41 / Route 133 - Western Ave. - Winthrop interchange
Winthrop 53.5 Highland Ave.  
Winthrop 54.0 Main St.  
Winthrop 55.7 Route 135 north - Stanley Rd. - Readfield, Belgrade  
Winthrop 55.9 Route 135 south - Winthrop Center Rd. - Monmouth  
Winthrop 57.8 South Rd.  
Manchester 59.1 Route 17 west - Readfield Rd. - Readfield, Livermore Falls
Pond Rd.
5.0-mile multiplex with Route 17 begins
Manchester 59.2 Puddle Dock Rd.  
Manchester 59.3 Granite Hill Rd.
Augusta 60.8 Prescott Rd.  
Augusta 61.3 Old Winthrop Rd.  
Augusta 61.4 Edison Dr.
Augusta 61.7 Whitten Rd.
Augusta 61.8 I-95 - Maine Turnpike - Portland, Waterville, Bangor interchange
Augusta 62.2 Meadow Rd. / Orchard St.
Augusta 62.5 Armory St.
Augusta 62.8 Airport Rd. - Augusta Airport
Augusta 62.9 Cushman St. / Florence St.  
Augusta 63.1 Chestnut St.  
Augusta 63.2 Sewall St.
Augusta 63.3 Chapel St.  
Augusta 63.4 US 201 south/Route 27 south - State St. - Hallowell, Gardiner
Route 8/Route 11 north/Route 27 north/Route 104 - State St. - Belgrade, Farmington
Grove St.
Chamberlain St.		 Memorial Circle
Route 100 turns onto Memorial Dr.
31.2-mile multiplex with Route 11 ends
22.4-mile multiplex with US 201 begins
Augusta 63.6 Gage St.  
Augusta 64.1 Route 9 west/Route 17 east - Stone St. - Randolph, Rockland
Route 105 - Cony St. - Windsor		 Cony Circle
Route 100 turns onto Bangor St.
5.0-mile multiplex with Route 17 ends
0.6-mile multiplex with Route 9 begins
Augusta 64.3 Willow St.  
Augusta 64.4 School St.  
Augusta 64.7 US 202 east/Route 9 east - Belfast Ave. - China, Belfast
0.6-mile multiplex with Route 9 ends
47.9-mile multiplex with US 202 ends
Augusta 64.9 Newland Ave.  
Augusta 65.3 Route 3 - to I-95 - Waterville, Portland, Belfast
Augusta 68.3 Stevens Rd.  
Vassalboro / Riverside 69.4 Cushnoc Rd.  
Vassalboro / Riverside 70.4 Webber Pond Rd.  
Vassalboro 73.1 Bog Rd.  
Vassalboro 74.5 Oak Grove Rd.  
Winslow 77.2 Taylor Rd.  
Winslow 78.4 Route 137 - Carter Memorial Dr. - Waterville, Oakland, China
Winslow 80.0 Lithgow St.  
Winslow 80.1 Gail St.  
Winslow 80.6 Route 32/Route 137 Business east - China Rd. - China
0.8-mile multiplex with Route 137 Business begins
Winslow 81.7 Route 100A - Halifax St. - Clinton
Winslow 82.2 Clinton Ave. / Benton Ave. Route 100 turns left onto Bridge St.
Waterville 82.4 Route 137 Business west - Spring St. - to Route 11 south, Route 104
Water St.
US 201 Northbound/Southbound split begins		 Route 100 Northbound turns right onto Front St.
Route 100 Southbound turns left onto Bridge St.
0.8-mile multiplex with Route 137 Business ends
Waterville 82.6 Temple St.  
Waterville 82.8 Route 11 south/Route 104 south - Elm St.
Route 104 north - Main St.
Center St.		 southbound only
Route 100 Southbound turns left from College Ave. onto Main St.
29.3-mile multiplex with Route 11 ends southbound
Waterville 82.8 Union St.  
Waterville 83.0 Colby St. / Chaplin St.
US 201 Northbound/Southbound split ends		 Route 100 Northbound merges onto College Ave.
29.0-mile multiplex with Route 11 begins northbound
Waterville 83.3 Oak St.  
Waterville 83.7 Hazelwood Ave.
Waterville 84.0 Greenwood St.  
Fairfield 84.9 Cottage St.  
Fairfield 85.1 High St.  
Fairfield 85.7 Summit St.  
Fairfield 85.8 US 201 north / Route 139 west - Main St. - Skowhegan
Lawrence Ave.		 Route 100 turns east onto Bridge St.
22.4-mile multiplex with US 201 ends
2.2-mile multiplex with Route 139 begins
Benton 86.3 River Rd. / Benton Ave.
Benton 86.7 School Dr.  
Benton 87.9 Route 100A - Clinton Ave. - Winslow Route 100 turns north onto Bangor Rd.
Benton 88.0 Route 139 east - Sebasticook Bridge - Unity  
2.2-mile multiplex with Route 139 ends
Benton 89.0 Bellsqueeze Rd.  
Clinton 92.2 Hinckley Rd. - to I-95  
Clinton 92.4 Railroad St. / Pleasant St.  
Burnham 98.0 Johnson Flat Rd. / Troy Rd.  
Pittsfield 100.0 Snakeroot Rd.  
Pittsfield 103.7 Webb Rd.  
Pittsfield 104.4 Merrimac St.  
Pittsfield 104.8 Peltoma Ave.  
Pittsfield 105.1 Central St.  
Pittsfield 105.2 Route 69 - Hunnewell Ave. - Detroit, Plymouth  
Pittsfield 105.3 Route 152 - Park St. - I-95, Hartland
Pittsfield 105.5 Detroit Ave.  
Pittsfield 105.6 Madawaska Rd.  
Detroit 109.2 Route 220 - Main St. - Troy  
Palmyra 111.5 I-95 - Bangor, Waterville, Augusta  
Newport 112.0 US 2 west - Main St. - Skowhegan
Route 7 north / Route 11 north - Dexter		 Route 100 turns east onto Main St.
29.0-mile multiplex with Route 11 ends
27.7-mile multiplex with US 2 begins
3.5-mile multiplex with Route 7 begins
Newport 112.5 High St. / Spring St.  
Newport 112.8 Elm St. Route 100 bears right onto Elm St.
Newport 116.8 Ridge Rd. - to I-95 north  
Newport 114.9 Old Bangor Rd.  
Newport 115.5 Route 7 south - Robinson Rd. - Plymouth, Belfast
Stetson Rd. - Stetson		  
3.5-mile multiplex with Route 7 ends
Newport 116.6 Old Bangor Rd.  
Etna 117.6 Palmer Rd.  
Etna 119.0 West Etna Rd.  
Etna 121.0 Route 143 - Dixmont Rd. - Stetson, Dixmont, to I-95  
Carmel 123.6 Damascus Rd.  
Carmel 124.2 Five Rd.  
Carmel 124.3 Route 69 - Plymouth Rd. / Hampden Rd. - Plymouth, Winterport Route 100 turns left
Carmel 126.3 Irish Rd.  
Carmel 127.8 Horseback Rd.  
Hermon 129.1 Swan Rd.  
Hermon 129.4 Black Stream Rd.  
Hermon 130.5 Annis Rd. - Levant / Newburgh Rd.  
Hermon 131.3 Billings Rd.
Hermon 132.3 New Boston Rd.  
Hermon 132.8 Bog Rd.  
Hermon 132.9 Cold Brook Rd. - to I-95, Hampden  
Hermon 134.9 Freedom Pkwy.  
Bangor 135.4 Hildreth St.  
Bangor 137.0 Odlin Rd.
I-395 - to I-95, Brewer		 Route 100 turns left onto Odlin Rd.
Bangor 137.9 Maine Ave. - Bangor International Airport Route 100 turns right onto Hammond St.
Bangor 138.1 I-95/Route 15 - Waterville, Houlton  
Bangor 138.3 Norway Rd.  
Bangor 138.5 14th St.  
Bangor 138.8 Allen St. / 13th St.  
Bangor 138.9 Webster Ave.  
Bangor 139.1 West Broadway  
Bangor 139.2 Cedar St.  
Bangor 139.5 Route 222 - Union St. - Levant, Brewer
Bangor 139.6 Ohio St.
Bangor 139.7 Franklin St.
Bangor 139.7 US 202/Business US 1A - Main St. / Central St.
27.7-mile multiplex with US 2 ends

(c) 1997-2008 J.P. Kirby. All rights reserved. Sign images from the Manual of Traffic Signs by Richard Moeur.

E-mail me at webmaster@the506.com