In the U.S. state of Minnesota, a legislative route is a highway number defined by the Minnesota State Legislature. The routes from 1 to 70 are constitutional routes, defined as part of the Babcock Amendment to the Minnesota State Constitution, passed November 2, 1920. All of them were listed in the constitution until a 1974 rewrite. Though they are now listed separately in §161.114 of the Minnesota Statutes, the definitions are legally considered to be part of the constitution, and cannot be altered or removed without an amendment. Legislative routes with numbers greater than 70 can be added or deleted by the legislature.
Until 1933 Constitutional Routes corresponded exactly to the number marked on the highways, but this is no longer necessarily the case. In fact it's common for CR highways to be composed of several different trunk highways. When the U.S. Highway system was created in 1926, many of these roads were made up of one or more U.S. highways. Today, they now use a mix of Minnesota state highways, U.S. highways, and Interstate highways.
Constitutional Route 1 is currently one of the most complex routes, composed of:
U.S. Highway 65 from the Iowa border to Albert Lea, MinnesotaInterstate 35 to FaribaultMinnesota State Highway 3 and MN-149 to Saint PaulU.S. Highway 61 to WyomingInterstate 35 to Rush CityMinnesota State Highway 361 to Rock CreekMinnesota State Highway 23 through Hinckleythe MN-73/27 loop through Moose LakeInterstate 35 between Moose Lake and MN-210the MN-210/45 loop through CarltonInterstate 35 to DuluthMinnesota State Highway 61 to the Canadian borderHowever, the route can be considered to be superseded along almost its entire length by Interstate 35 (and I-35E) and Minnesota State Highway 61. By contrast, Constitutional Route 58 still has the same marked number and extent that it did in 1920.
There is some ambiguity in how literally the Minnesota Department of Transportation must interpret the constitutional routes. In some cases, the routes no longer directly serve communities they were once designated for, but are routed along nearby highways instead.
Constitutional Route 1: Iowa to Ontario via Albert Lea, Owatonna, Faribault, Northfield, Farmington, St. Paul, White Bear, Forest Lake, Wyoming, Rush City, Pine City, Hinckley, Sandstone, Moose Lake, Carlton, Duluth, Two Harbors, and Grand MaraisConstitutional Route 2: Duluth to North Dakota via Carlton, McGregor, Aitkin, Brainerd, Motley, Staples, Wadena, Detroit, and MoorheadConstitutional Route 3: Wisconsin to North Dakota via La Crescent, Winona, Kellogg, Wabasha, Lake City, Red Wing, Hastings, St. Paul, Minneapolis, Osseo, Champlin, Anoka, Elk River, Big Lake, St. Cloud, Albany, Sauk Centre, Alexandria, Elbow Lake, Fergus Falls, and BreckenridgeConstitutional Route 4: Iowa to International Falls via Jackson, Windom, Sanborn, Redwood Falls, Morton, Olivia, Willmar, Paynesville, Sauk Centre, Long Prairie, Wadena, Park Rapids, Itasca State Park, and BemidjiConstitutional Route 5: Iowa to Swan River via Blue Earth, Winnebago, Mankato, St. Peter, Le Sueur, Jordan, Shakopee, Minneapolis, Cambridge, Mora, and McGregorConstitutional Route 6: Iowa to Manitoba via Luverne, Pipestone, Lake Benton, Ivanhoe, Canby, Madison, Bellingham, Odessa, Ortonville, Graceville, Dumont, Wheaton, Breckenridge, Moorhead, Kragnes, Georgetown, Perley, Hendrum, Ada, Crookston, Warren, Donaldson, and HallockConstitutional Route 7: Winona to South Dakota via St. Charles, Rochester, Kasson, Dodge Center, Claremont, Owatonna, Waseca, Mankato, St. Peter, New Ulm, Springfield, Tracy, and Lake BentonConstitutional Route 8: Duluth to North Dakota via Floodwood, Swan River, Grand Rapids, Cass Lake, Bemidji, Bagley, Erskine, Crookston, and East Grand ForksConstitutional Route 9: La Crescent to South Dakota via Hokah, Houston, Rushford, Lanesboro, Preston, Fountain, Spring Valley, Austin, Albert Lea, Blue Earth, Fairmont, Jackson, Worthington, and LuverneConstitutional Route 10: Minneapolis to Wheaton via Montrose, Cokato, Litchfield, Willmar, Benson, Morris, and HermanConstitutional Route 11: Duluth to Donaldson via Eveleth, Virginia, Cook, Orr, Cusson, International Falls, Baudette, Warroad, Roseau, and GreenbushConstitutional Route 12: Wisconsin to Madison via St. Paul, Minneapolis, Hopkins, Norwood, Glencoe, Olivia, Granite Falls, Montevideo, and DawsonConstitutional Route 13: Albert Lea to Jordan via Waseca, Waterville, Montgomery, and New PragueConstitutional Route 14: Ivanhoe to Gaylord via Marshall, Redwood Falls, Morton, and WinthropConstitutional Route 15: Iowa to Winthrop via Fairmont, Madelia, and New UlmConstitutional Route 16: southwest of Mankato to Worthington via Madelia, St. James, Windom, and FuldaConstitutional Route 17: Fulda to Granite Falls to Slayton, Garvin, and MarshallConstitutional Route 18: Elk River to east of Brainerd via Princeton, Milaca, and OnamiaConstitutional Route 19: Brainerd to Cass Lake via Pine River and WalkerConstitutional Route 20: Iowa to Douglas via Canton, Harmony, Preston, Fountain, Chatfield, Oronoco, Pine Island, Zumbrota, and Cannon FallsConstitutional Route 21: Zumbrota to St. Peter via Kenyon, Faribault, Le Sueur Center, and ClevelandConstitutional Route 22: St. Peter to Paynesville via Gaylord, Glencoe, Hutchinson, and LitchfieldConstitutional Route 23: Paynesville to south of Hinckley via St. Cloud, Foley, Milaca, Ogilvie, and MoraConstitutional Route 24: Litchfield to St. CloudConstitutional Route 25: Belle Plaine to Big Lake via Norwood, Watertown, Montrose, Buffalo, and MonticelloConstitutional Route 26: Benson to OrtonvilleConstitutional Route 27: St. Cloud to Brainerd via Sauk Rapids, Royalton, and Little FallsConstitutional Route 28: Little Falls to South Dakota via Sauk Centre, Glenwood, Starbuck, Morris, Graceville, and Browns ValleyConstitutional Route 29: Glenwood to west of Wadena via Alexandria, Parkers Prairie, and Deer CreekConstitutional Route 30: Fergus Falls to Erskine via Pelican Rapids, Detroit Lakes, and MahnomenConstitutional Route 31: Ada to MahnomenConstitutional Route 32: east of Crookston to Greenbush via Red Lake Falls, Thief River Falls, and Middle RiverConstitutional Route 33: Thief River Falls to WarrenConstitutional Route 34: Detroit to west of Grand Rapids via Park Rapids, Walker, and RemerConstitutional Route 35: Mille Lacs Lake to Ely via Aitkin, Grand Rapids, Hibbing, Chisholm, Buhl, Mountain Iron, Virginia, Gilbert, McKinley, Biwabik, Aurora, and TowerConstitutional Route 36: Fergus Falls to east of HenningConstitutional Route 37: Little Falls to MotleyConstitutional Route 38: Montevideo to Starbuck via BensonConstitutional Route 39: Mankato to west of Albert Lea via Mapleton, Minnesota Lake, and WellsConstitutional Route 40: Iowa to Owatonna via Lyle, Austin, and Blooming PrairieConstitutional Route 41: Blooming Prairie to HayfieldConstitutional Route 42: east of Rochester to Kellogg via Elgin and PlainviewConstitutional Route 43: Rushford to WinonaConstitutional Route 44: Hokah to Canton via CaledoniaConstitutional Route 45: Wisconsin to St. Paul via Stillwater and Lake ElmoConstitutional Route 46: Wisconsin to Wyoming via Taylors Falls and Center CityConstitutional Route 47: Slayton to PipestoneConstitutional Route 48: west of Granite Falls to Canby via ClarkfieldConstitutional Route 49: east of Montevideo to south of Willmar via Clara CityConstitutional Route 50: Cannon Falls to Minneapolis via FarmingtonConstitutional Route 51: Shakopee to north of ShakopeeConstitutional Route 52: south of Minneapolis to Fort Snelling towards St. PaulConstitutional Route 53: Hastings to South St. PaulConstitutional Route 54: Elbow Lake to HermanConstitutional Route 55: northwest of Carlton to CloquetConstitutional Route 56: east of Austin to Kenyon via Brownsdale, Hayfield, Dodge Center, and West ConcordConstitutional Route 57: Mantorville to south of MantorvilleConstitutional Route 58: Zumbrota to Red WingConstitutional Route 59: Iowa to Lake City via Spring Valley, Stewartville, Rochester, Zumbro FallsConstitutional Route 60: Faribault to Madison Lake via Morristown and WatervilleConstitutional Route 61: Deer River to Big FallsConstitutional Route 62: Anoka to St. PaulConstitutional Route 63: south of Forest Lake to MinneapolisConstitutional Route 64: north of Fergus Falls to south of Moorhead via Rothsay and BarnesvilleConstitutional Route 65: Bagley to south of Red Lake Falls via Clearbrook, Gonvick, Gully, Brooks, and TerrebonneConstitutional Route 66: Montevideo to north of AppletonConstitutional Route 67: Echo to Granite FallsConstitutional Route 68: Marshall to Canby via MinneotaConstitutional Route 69: Buffalo to Paynesville via Maple Lake, Annandale, and Eden ValleyConstitutional Route 70: west of New Ulm to Hector via Fort Ridgely and FairfaxLegislative Route 71: Little Falls, Onamia, Isle, McGrath, and Moose LakeLegislative Route 72: Bemidji, Waskish, BaudetteLegislative Route 73: Zumbrota, Mazeppa, Zumbro Falls, and WabashaLegislative Route 74: Weaver, St. Charles, and ChatfieldLegislative Route 75: Winona to WisconsinLegislative Route 76: Wilson, Houston, and Caledonia to IowaLegislative Route 77: Rushford, Chatfield, Stewartville, and HayfieldLegislative Route 78: Rushford to MabelLegislative Route 79: Harmony to IowaLegislative Route 80: Wykoff to PrestonLegislative Route 81: Austin to LeRoyLegislative Route 82: Blooming Prairie, Ellendale, Mapleton, and St. JamesLegislative Route 83: Mankato to New UlmLegislative Route 84: Sleepy Eye, St. James, and Sherburn to IowaLegislative Route 85: Windom, Worthington, and Bigelow to IowaLegislative Route 86: Iowa to Lakefield, WindomLegislative Route 87: Wells, Kiester to IowaLegislative Route 88: South Dakota to Jasper, Pipestone, Marshall, and MontevideoLegislative Route 89: Pipestone to South DakotaLegislative Route 90: Ivanhoe to South DakotaLegislative Route 91: Iowa to Adrian, Lake Wilson, and RussellLegislative Route 92: Currie, JeffersLegislative Route 93: Redwood Falls, Sleepy EyeLegislative Route 94: Hastings to WisconsinLegislative Route 95: Point Douglas, Bayport, Stillwater, Taylors FallsLegislative Route 96: Stillwater, New BrightonLegislative Route 97: Forest Lake, Taylors FallsLegislative Route 98: Forest Lake, Center CityLegislative Route 99: Le Center, Shields LakeLegislative Route 100: Gaylord, Henderson, New Prague, Northfield, Cannon Falls and Red WingLegislative Route 101: Faribault, LakevilleLegislative Route 102: Connects Constitutional Route 1 through St. PaulLegislative Route 103: Connects Constitutional Route 1 through DuluthLegislative Route 104: Connects Constitutional Route 3 through St. PaulLegislative Route 105: Connects Washington Avenue with Constitutional Route 5 through MinneapolisLegislative Route 106: Connects Constitutional Route 8 through Duluth, via the Richard I. Bong Memorial Bridge.Legislative Route 114: Discontinued and removedLegislative Route 126: RepealedLegislative Route 127: Discontinued and removedLegislative Route 128: Mantorville, Wanamingo, and HaderLegislative Route 129: Discontinued and removedLegislative Route 130: Minneapolis, and Fort Snelling via Broadway Ave and Hiawatha AveLegislative Route 131: Randall, and Camp Ripley JunctionLegislative Route 132: St. Cloud, Princeton, Cambridge, and Taylors FallsLegislative Route 133: Braham, West Rock, and Rock Creek, to Wisconsin.Legislative Route 134: Grasston, and Brook ParkLegislative Route 135: Little Falls, Long Prairie, and OsakisLegislative Route 136: Bemidji, and RoseauLegislative Route 137: Garrison, Deerwood, Crosby, and RemerLegislative Route 138: Walker, and KabekonaLegislative Route 139: Pine River, and WalkerLegislative Route 140: Baudette, and Wheelers PointLegislative Route 141: Connects Constitutional Route 4 and Constitutional Route 28 through Sauk CentreLegislative Route 142: Paynesville, Glenwood, and Elbow Lake to South DakotaLegislative Route 143: Sunburg, and GlenwoodLegislative Route 144: Madison, Appleton, Morris, and BarrettRoutes 380 to 385 were defined in and after 1975, and "may be added by order of the commissioner of transportation to the trunk highway system"; only 383, 384, and 385 have been added, and 385 no longer exists.
Legislative Route 380: Shepard Road in St. PaulLegislative Route 381: deleted from the statutes (was a planned extension of the Lafayette Freeway northwest to I-35E)Legislative Route 382: part of I-35E in St. Paul (actually covered by Route 390)Legislative Route 383: Bloomington to Brooklyn ParkLegislative Route 384: Eden Prairie to southeast of MinneapolisLegislative Route 385: deleted from the statutes (was Washington Avenue in Minneapolis)Routes 390 to 396 were defined in and after the 1950s as portions of the Interstate Highway System "to take advantage of federal aid made available by the United States to the state of Minnesota for highway purposes".
Legislative Route 390: Iowa to Wisconsin (I-35, I-35E, and I-535)Legislative Route 391: South Dakota to Wisconsin (I-90)Legislative Route 392: North Dakota to Wisconsin (I-94)Legislative Route 393: loop around the Twin Cities (I-494 and I-694)Legislative Route 394: alternate to Route 390 through Minneapolis (I-35W)Legislative Route 395: Duluth (part of I-35)Legislative Route 396: Duluth (extension of I-35)Interstate 394 is not a separate legislative route, instead being parts of Route 10 and Route 107, which carried U.S. Highway 12 along the same alignment before I-394 was built.