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Table 2 - Auxiliary Routes

Table 2: Auxiliary Routes of the Dwight D. Eisenhower National System Of Interstate and Defense Highways as of December 31, 2014
Interstate Route   State Total Miles Net Miles Howard-Cramer Miles  Sections 103(c)(4)(A) Miles  ISTEA Miles   Overlap Miles & Route  Urban Areas Served
(* = Major Suburbs)  
H-201 Hawaii 4.1 4.1 - 4.1 - - Honolulu
I-105 California 17.32 17.32 7 - - - Los Angeles
* Inglewood
* South Gate
* Downey
Oregon 3.49 3.49 - - - - Eugene
I-110 California 20.43 20.43 - - - - Los Angeles
* Pasadena
* Hawthorne
* Gardena
* Carson
Texas 0.92 0.92 - - - - El Paso
Louisiana 8.89 8.89 - - - - Baton Rouge
Mississippi 4.1 4.1 - - - - Biloxi-Gulfport
Florida 6.94 6.94 - - - - Pensacola
I-115 Montana 1.19 1.19 - - - - Butte
I-124 Tennessee 1.97 1.97 - - - - Chattanooga
I-126 S. Carolina 3.68 3.68 - - - - Columbia
I-129 Iowa 0.27 0.27 - - - - Sioux City
Nebraska 3.21 3.21 - - - - Sioux City
I-135 Kansas 95.74 95.74 - - - - Wichita
* Salina
I-140 Tennessee 11.17 11.17 - 11.17 - - Knoxville
North Carolina 6.80 6.80 - 6.80 - - Wilmington
I-155 Illinois 32.13 32.13 - 32.13 - - Lincoln, Peoria
Missouri 10.84 10.84 - - - - Caruthersville
Tennessee 15.93 15.93 - - - - Dyersburg
I-165 Alabama 4.9 4.9 - - - - Mobile
* Prichard
I-170 Missouri 11.17 11.17 - 4.29 - - St. Louis
* Hazelwood
* Berkeley
* Clayton
* University City
* Richmond Heights
I-172 Illinois 19.69 19.69 - 19.69 - - Quincy
I-175 Florida 1.44 1.44 - 1.44 - - Tampa-St. Petersburg
I-176 Pennsylvania 11.33 11.33 - - - - Reading
I-180 Wyoming 1.09 1.09 - - - - Cheyenne
Nebraska 3.18 3.18 - - - - Lincoln
Illinois 13.19 13.19 - - - - None
Pennsylvania 28.85 28.85 - 28.85 - - Williamsport
* Montoursville
I-181 Tennessee 8.4 8.4 - 8.4 - - Kingsport
I-182 Washington 15.19 15.19 - - - - Richland, Pasco, Kennewick-Richland
I-184 Idaho 3.62 3.62 - - - - Boise
I-185 Georgia 49.3 49.3 - 5.5 - - Columbus
S. Carolina 17.7 17.7 - 14.5 - - Maudlin-Simpsonville
I-189 Vermont 1.49 1.49 - - - - Burlington
I-190 South Dakota 1.72 1.72 - - - - Rapid City
Illinois 3.07 3.07 - 3.07 - - Chicago
* Park Ridge
* Schiller Park
* Harwood Heights
New York 28.34 28.34 - - - - Buffalo
Massachusetts 19.26 19.26 - - - - Worcester, Leominster-Fitchburg
I-194 North Dakota 1.2 1.2 - - - - Bismarck
Michigan 3.38 3.38 - - - - Battle Creek
I-195 Florida 4.42 4.42 - - - - Miami
* Miami Beach
Virginia 3.24 3.24 - - - - Richmond
Maryland 4.71 4.71 2.2 1.4 - - Baltimore
* Halethorpe
* Linthicum
New Jersey 34.17 34.17 27.3 - - - New York-Newark, Trenton
Rhode Island 3.82 3.82 - - - - Providence
* East Providence
Massachusetts 40.73 40.73 - 14.28 - - Barnstable Town
New Bedford
* Fairhaven
Maine 1.55 1.55 - - - - Biddeford-Saco
I-196 Michigan 80.65 80.65 - - - - Benton Harbor, Holland, Grand Rapids
* Grandville
* Wyoming
I-205 California 12.97 12.97 - - - - Tracy
Oregon 26.07 26.07 - - - - Portland
* Milwaukie
* Parkrose
Washington 10.57 10.57 - - - - Vancouver
I-210 California 48.72 48.72 - - - - Los Angeles
* Glendale
* Pasadena
* Arcadia
Louisiana 12.4 12.4 - - - - Lake Charles
I-215 California 54.5 54.5 - 54.5 - - Riverside-San Bernardino, Temecula-Murrieta
Utah 29.02 29.02 - - - - Salt Lake City
* Millcreek
* Holladay
* Cottonwood
Nevada 11.1 11.1 - 11.1 -   Henderson, Las Vegas
I-220 Louisiana 17.62 17.62 - - - - Shreveport
* Bossier City
Mississippi 12.01 12.01 - - - - Jackson
I-225 Colorado 12 12 - - - - Denver-Aurora
I-229 Missouri 14.97 14.97 - - - - St. Joseph
South Dakota 11.33 11.33 - - - - Sioux Falls
I-235 Oklahoma 5.36 5.36 - 1.54 - - Oklahoma City
Kansas 16.52 16.52 - - - - Wichita
Iowa 13.78 13.78 - - - - Des Moines
I-238 California 2.23 2.23 - 2.23 - - Hayward
I-240 Oklahoma 16.22 16.22 - 4.35 - - Oklahoma City
Tennessee 19.27 19.27 - - - - Memphis
N. Carolina 9.14 9.14 - 6.92 - - Asheville
I-244 Oklahoma 15.75 15.75 - - - - Tulsa
I-255 Missouri 3.77 3.77 - - - - St. Louis
* East St. Louis
Illinois 27.05 27.05 - - - - St. Louis
* East St. Louis
I-264 Kentucky 22.93 22.93 - - - - Louisville
* Shively
* St. Matthews
Virginia 25.07 25.07 - 12 - - Virginia Beach
I-265 Kentucky 24.48 24.48 - 21.2 - - Louisville
* Okolona
* Jeffersontown
Indiana 6.73 6.73 - - - - New Albany
I-270 Colorado 5.31 5.31 - - - - Denver-Aurora
* Commerce City
Missouri 35.62 35.62 - - - - St. Louis
* Florissant
* Ferguson
* Bridgeton
* Kirkwood
Illinois 14.97 14.97 - - - - St. Louis
* East St. Louis
* Granite City
Ohio 54.97 54.97 - - - - Columbus
* Whitehall
* Gahanna
* Upper Arlington
* Grove City
Maryland 34.4 34.4 - - - - Rockville, Gaithersburg, Frederick
I-271 Ohio 46.06 40.22 - - - 5.84 Mi. on I-480 Cleveland
* Maple Heights
* Shaker Heights
* South Euclid
I-275 Florida 60.64 60.64 - - - - St. Petersburg-Tampa
* Gulfport
* Pinellas Park
Sarasota-Bradenton
Tennessee 2.98 2.98 - - - - Knoxville
Kentucky 24.58 24.58 - - - - Covington- Newport
Ohio 55.97 52.52 - - - 3.45 Mi. on I-74 Cincinnati
* Sharonville
* Springdale
Indiana 3.16 3.16 - - - - None
Michigan 29.97 29.97 - - - - Ann Arbor, Detroit
* Romulus
* Westland
I-276 Pennsylvania 32.65 32.65 - - - - Philadelphia
* King of Prussia
* Norristown
I-277 N. Carolina 4.41 4.41 - 1.72 - - Charlotte
Ohio 4.14 4.14 - - - - Akron
I-278 New Jersey 2 2 - - - - Elizabeth
New York 33.62 33.62 - - - - New York City-Newark
*Staten Island
*Brooklyn
*Queens
*Bronx
I-279 Pennsylvania 13.32 13.32 - - - - Pittsburgh
I-280 California 57.22 57.22 - - - - San Francisco, San Jose
* Daly City
* San Bruno
* Mountain View
Iowa 9.38 9.38 - - - - Davenport
Illinois 17.6 8.21 - - - 9.39 Mi. on I-74 Rock Island
Ohio 12.41 12.41 - - - - Toledo
New Jersey 17.85 17.85 - - - - Orange, West Orange, East Orange, Newark
I-283 Pennsylvania 2.91 2.91 - - - - Harrisburg
I-285 Georgia 63.98 62.77 - - - 1.21 Mi. on I-85 Atlanta
I-287 New Jersey 67.54 67.54 - - - - Northeast New Jersey
* Somerville
* Morristown
* Pompton Plain
* Oakland
New York 31.18 11.98 - - - 19.20 Mi. on I-87 New York City
* Suffern
* Spring Valley
* White Plains
* Tarrytown
* Port Chester
I-290 Illinois 29.84 29.84 - - - - Chicago
* Schaumburg
* Elmhurst
* Maywood
* Cicero
New York 9.8 9.8 - - - - Buffalo
* Town of Tonawanda
* Amherst
Massachusetts 20.16 20.16 - - - - Worcester
I-291 Connecticut 6.02 6.02 - - - - Hartford
Massachusetts 5.44 5.44 - - - - Springfield
I-293 New Hampshire 11.18 11.18 - 5.68 - - Manchester
I-294 Illinois 53.42 48.1 - - - 5.32 Mi. on I-80 Chicago
* Harvey
* Westchester
* Oak Lawn
I-295 Florida 61.04 61.04 - 25.53 - - Jacksonville
Virginia 52.56 52.56 - - - - Richmond, Petersburg-Colonial Heights
District of Columbia 5.2 5.2 - - - - Washington, D.C.
Maine 10.9 10.9         Portland
Maryland 0.8 0.8 - - - - Washington, D.C.
Delaware 5.71 5.71 - - - - Wilmington
New Jersey 68.06 68.06 - - - - Camden, Trenton
New York 7.7 7.7 - - - - New York City
* Queens
* Bronx
Rhode Island 22.35 22.35 - - - - Providence
* Cranston
Massachusetts 4.23 4.23 - - - - Providence (R.I.)
Maine 11.02 11.02 - - - - Portland
I-296 Michigan 3.43 3.43 - - - - Grand Rapids
I-305 California 6 6 - - - - Sacramento
I-310 Louisiana 11.25 11.25 - - - - New Orleans
I-315 Montana 0.83 0.83 - - - - Great Falls
I-335 Kansas 50.13 50.13 - 50.13 - - Topeka, Emporia
I-345 Texas 1.4 1.4 - - - - Dallas
I-355 Illinois 32.51 32.51 - 32.51 - - Chicago
* Bolingbrook
* Downers Grove
* Glen Ellyn
* Lombard
I-359 Alabama 2.3 2.3 - - - - Tuscaloosa
I-369 Texas 3.5 3.5 - - 3.5 -
I-370 Maryland 2.54 2.54 1.18 - - - Washington, D.C.
* Rockville
* Gaithersburg
I-375 Florida 1.34 1.34 - 1.34 - - Tampa-St. Petersburg
Michigan 1.06 1.06 - - - - Detroit
I-376 Pennsylvania 78.7 78.7 - - - - Pittsburgh
              * Monroeville
              * Wilkinsburg
             
I-380 California 3.3 3.3 - - - - San Francisco-Oakland
* San Bruno
Iowa 73.05 73.05 - - - - Waterloo, Cedar Rapids, Iowa City
Pennsylvania 24.76 24.76 - - - - Scranton
I-381 Virginia 1.67 1.67 - - - - Bristol
I-384 Connecticut 8.2 8.2 - - - - Hartford
* East Hartford
* Manchester
I-385 S. Carolina 42.16 42.16 - 36 - - Greenville
* Laurens
I-390 New York 76.06 76.06 60.5 - - - Rochester
I-391 Massachusetts 4.46 4.46 - - - - Springfield
*Chicopee
*Holyoke
I-393 New Hampshire 4.6 4.6 - - - - Concord
I-394 Minnesota 9.75 9.75 - - - - Minneapolis
* St. Louis Park
* Golden Valley
I-395 Florida 1.29 1.29 - - - - Miami
Virginia 9.91 9.91 - - - - Arlington, Alexandria
District of Columbia 3.48 3.48 - - - - Washington, D.C.
Maryland 1.98 1.98 - - - - Baltimore
Connecticut 54.69 54.69 - 54.69 - - Norwich-New London
Massachusetts 11.91 11.91 - 11.91 - - Worcester
Maine 4.99 4.99 - - - - Bangor
I-405 California 72.15 72.15 - - - - Los Angeles
* Irvine
* Costa Mesa
* Huntingdon Beach
* Long Beach
* Torrance
* Inglewood
* Santa Monica
Oregon 3.53 3.53 - - - - Portland
Washington 30.3 30.3 - - - - Seattle
* Renton
* Bellevue
I-410 Texas 49.49 49.49 - 9.93 - - San Antonio
I-430 Arkansas 12.93 12.93 - - - - Little Rock
I-435 Kansas 28.03 28.03 - - - - Kansas City
* Leawood
* Overland Park
* Shawnee
Missouri 52.78 52.78 - - - - Kansas City
* Grandview
* Raytown
* Independence
* Gladstone
I-440 Arkansas 9.96 9.96 - 9.96 - - Little Rock
Tennessee 7.64 7.64 - - - - Nashville-Davidson
N. Carolina 16.4 16.4 - 16.4 - - Raleigh
I-444 Oklahoma 2.51 2.51 - - - - Tulsa
I-459 Alabama 32.8 32.8 - - - - Birmingham
* Bessemer
* Bluff Park
* Homewood
I-464 Virginia 4.71 4.71 - - - - Virginia Beach
I-465 Indiana 57.51 57.51 - 5.03 - - Indianapolis
I-469 Indiana 30.83 30.83 - 30.83 - - Ft. Wayne, New Haven
I-470 Kansas 13.72 13.72 - - - - Topeka
Missouri 16.72 16.72 - - - - Kansas City, Lee's Summit
* Independence
Ohio 6.69 6.69 - - - - Wheeling (W.Va.-Ohio)
West Virginia 3.94 3.94 - - - - Wheeling
I-471 Kentucky 5.02 5.02 - - - - Newport
Ohio 0.73 0.73 - - - - Cincinnati
I-474 Illinois 14.88 14.88 - - - - Peoria
I-475 Georgia 15.83 15.83 - - - - Macon
Ohio 20.37 20.37 - - - - Toledo
Michigan 16.99 16.99 - - - - Flint
I-476 Pennsylvania 129.61 129.61 - 110 - - Allentown-Bethlehem,
Philadelphia
* Ridley Park
* Marple
* Broomall
* Conshohocken
Scranton
I-478 New York 2.14 2.14 - 2.14 - - New York City
* Brooklyn
* Manhattan
I-480 Nebraska 4.15 4.15 - - - - Omaha
Iowa 0.75 0.75 - - - - Council Bluffs
Ohio 41.77 41.77 - - - - Cleveland
* Bedford Heights
* Maple Heights
* Garfield Heights
* North Olmstead
* Parma
I-481 New York 15.04 15.04 - - - - Syracuse
* DeWitt
I-485 N. Carolina 59.55 59.55 - 59.55 - - Charlotte, Gastonia
I-490 Ohio 2.43 2.43 - - - - Cleveland
New York 37.4 37.4 - - - - Rochester
I-494 Minnesota 42.94 42.94 - - - - Minneapolis
* Bloomington
* Eden Prairie
* Maple Grove
* Minnetonka
I-495 North Carolina 4.09 4.09 - - - - Raleigh
Virginia 15.28 15.28 - - - - Washington, D.C.
* Springfield
* Annandale
* McLean
* Vienna
Maryland 16.13 16.13 - - - - Washington, D.C.
* Bethesda
* Wheaton
* Silver Spring
Delaware 11.47 11.47 - - - - Wilmington
* Claymont
New York 66.38 66.38 - 62.7 - - New York City *Manhattan
* Manhattan
* Queens
* Long Island
Massachusetts 121.56 121.56 12.9 18.5 - - Barnstable Town, Boston, Lowell, Lawrence
Maine 50.47 50.47 - 50.47 - - Portland, Lewiston, Gardiner
I-496 Michigan 11.78 11.78 - - - - Lansing
I-505 California 32.98 32.98 - - - - Vacaville
I-510 Louisiana 3.04 3.04 - - - - New Orleans
I-515 Nevada 20.54 20.54 - 14.9 - - Las Vegas
I-516 Georgia 6.49 6.49 - 6.49 - - Savannah
I-520 Georgia 16.14 16.14 9.11 7.03 - - Augusta
South Carolina 7.2 7.2 - 7.2 - - North Augusta, Belvedere
I-526 S. Carolina 19.26 19.26 - 11.2 - - Charleston
* North Charleston
* Mount Pleasant
I-530 Arkansas 46.65 46.65 - 46.65 - - Pine Bluff
I-535 Minnesota 1.57 1.57 - - - - Duluth
Wisconsin 1.21 1.21 - - - - Superior
I-540 N. Carolina 25.84 25.84 - 25.84 - - Raleigh, Knightsdale
  Arkansas 15.87 15.87   5.97     Fort Smith
I-564 Virginia 3.03 3.03 - - - - Virginia Beach
I-565 Alabama 21.4 21.4 - - - - Huntsville
I-575 Georgia 30.97 30.97 29.16 - - - Atlanta
I-579 Pennsylvania 1.57 1.57 - - - - Pittsburgh
I-580 California 75.63 75.63 - 7.3 - - Concord, Livermore, San Francisco-Oakland, San Rafeal-Novato
Nevada 30.067 30.067 - 26.287 - - Reno
I-581 Virginia 6.64 6.64 - - - - Roanoke
I-585 S. Carolina 2.25 2.25 - - - - Spartanburg
I-587 New York 1.21 1.21 - - - - Kingston
I-590 New York 5.31 5.31 5.31 - - - Rochester
I-595 Maryland 19.97 19.97 19.31 - - - Washington, D.C.
* Bowie
Annapolis
Florida 12.86 12.86 - 8.8 - - Miami
I-605 California 27.4 27.4 - - - - Los Angeles
* Long Beach
* Lakewood
* Bellflower
* Norwalk
* Downey
* South Whittier
* El Monte
I-610 Texas 37.97 37.97 - - - - Houston
Louisiana 4.52 4.52 - - - - New Orleans
I-630 Arkansas 7.4 7.4 - - - - Little Rock
I-635 Texas 37 37 - - - - Dallas
* Balch Springs
* Mesquite
Kansas 8.9 8.9 - - - - Kansas City
Missouri 3.77 3.77 - - - - Kansas City
I-640 Tennessee 7.03 7.03 - - - - Knoxville
I-664 Virginia 20.21 20.21 - 9.2 - - Virginia Beach
I-670 Kansas 1.64 1.64 - - - - Kansas City
Missouri 1.17 1.17 - - - - Kansas City
Ohio 9.37 9.37 - - - - Columbus
I-675 Georgia 11.04 11.04 7.78 - - - Atlanta
Ohio 26.53 26.53 - - - - Dayton
Michigan 7.72 7.72 - - - - Saginaw
I-676 Pennsylvania 2.15 2.15 - - - - Philadelphia
New Jersey 4.75 4.75 - - - - Camden
I-678 New York 14.33 14.33 - 7.8 - - New York City
* Queens
* Bronx
I-680 California 70.52 70.52 - 12.5 - - San Jose, Milpitas, Freemont, Walnut Creek, Concord
Nebraska 13.32 13.32 - - - - Omaha
Iowa 29.54 19.63 - - - 9.91 Mi on I-29 Omaha
Ohio 16.43 16.43 - - - - Youngstown
I-684 New York 27.06 27.06 - - - - White Plains
Connecticut 1.41 1.41 - - - - Bridgeport-Stamford
I-685 Alabama 14 0 - - - 14 Mi on I-85 Montgomery
I-690 New York 14.19 14.19 - - - - Syracuse
I-691 Connecticut 8.38 8.38 6.69 - - - Hartford, New Haven
I-694 Minnesota 22.62 21.97 - - - 0.65 Mi on I-35E Minnieapolis-St. Paul
* Maplewood
* Roseville
* Fridley
I-695 District of Columbia 2 2 - - - - Washington, D.C.
Maryland 30.57 30.57 - 2.2 - - Baltimore
* Dundalk
* Essex
* Rosedale
* Towson
* Catonsville
New York 1.4 1.4         New York City
I-696 Michigan 29.39 29.39 - - - - Detroit
* Warren
* Roseville
I-705 Washington 1.5 1.5 - - - - Seattle
I-710 California 19.66 19.66 - 19.66 - - Los Angeles
* Long Beach
* Downey
* Compton
* East Los Angeles
I-759 Alabama 4.5 4.5 - - - - Gadsden
I-780 California 6.5 6.5 - - - - Vallejo
I-781 New York 4.3 4.3 - - - -  
I-785 North Carolina 2.21 0 - - - 2.21 Mi on I-840  
I-787 New York 10.16 10.16 - - - - Albany
I-790 New York 2.41 2.41 - - - - Utica
I-794 Wisconsin 3.75 3.75 - - - - Milwaukee
I-795 Maryland 8.99 8.99 - 5.47 - - Baltimore
* Pikesville
* Owings Mill
North Carolina 25.4 25.4 - 25.4 -   Goldsboro
I-805 California 28.02 28.02 - - - - San Diego
* Chula Vista
* National City
I-820 Texas 35.17 35.17 - - - - Dalla-Ft. Worth-Arlington
I-840 North Carolina 5.77 2.21 - - - 3.56 Mi on I-73, 2.21 Mi on I-785 Greensboro
I-878 New York 0.7 0.7 - - - - New York City
I-880 California 47.22 47.22 - 47.22 - - San Jose, San Fracisco-Oakland
I-890 New York 9.35 9.35 - - - - Albany
I-894 Wisconsin 4.7 4.7 - - - - Milwaukee
* West Allis
* Wauwatosa
I-895 Maryland 11.44 11.44 - - - - Baltimore
* Dundalk
New York 1.12 1.12 - - - - New York City
* Bronx
I-910 Louisiana 9.7 9.7 - - 9.7 -  
I-980 California 2.03 2.03 - 1 - - Oakland
I-985 Georgia 24.04 24.04 - 24.04 - - Gainesville
I-990 New York 6.35 6.35 - 2.04 - - Buffalo
* Amherst

Notes:

Total Miles - this column includes the original 42, 500 miles under former 23 USC 103(e)(1) & (3) plus the Howard-Cramer additions under former 23 USC 103(3)(2) and additions under 23 USC 103(c)(4)(A). It also includes mileage sections which overlap other Interstate routes.

Net Miles - this column does not include overlapping mileage.

Howard-Cramer Miles - this column shows mileage added to the system under former 23 USC 103(e)(2).

Section 103(c)(4)(A) Miles - this column shows mileage added to the system under 23 USC 103(c)(4)(A). It supersedes 23 USC 139(a) & 139(c).

Population figures are from the 2010 Census. Major Urban Areas Served means that the route either enters the Urban Area or approaches close enough to provide useful service.

Routes shown are those routes designated as of December 31, 2014.

In Maryland, I-595 has not yet been signed as an Interstate highway as of December 31, 2014

In Lousiana, I-910 has not yet been signed as an Interstate highway as of December 31, 2014

Updated: 01/15/2014
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