List of Missouri supplemental routes in Franklin County

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Missouri Supplemental Route System
System information
Formed1952
StateRoute xx
System links

Missouri supplemental routes are owned and maintained by the Missouri Department of Transportation (MoDOT).

Route A

Route A

Length8.005 mi (12.883 km)

Route A is located in north central Franklin County. The route serves as an alternate route from Union to Washington, and provides access to Krakow.

Major intersections

The entire route is in Franklin County.

Locationmi[1]kmDestinationsNotes
Union0.0000.000 Route 47 – Washington, St. ClairSouthern terminus
3.0554.917
Route BB south
Northern terminus of Route BB
Krakow4.1516.680
Route YY west
Eastern terminus of Route YY
Washington8.00512.883 Route 100 / Lewis and Clark Trail – New Haven, WashingtonNorthern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Route B

Route B

Length8.686 mi (13.979 km)

Route B is an east-west Missouri supplemental route in northwestern Franklin County. The route is an alternate route of Route 100, providing access to Berger. The highway runs parallel to Union Pacific's Jefferson City Subdivision.

Major intersections

The entire route is in Boeuf Township, Franklin County.

mi[1]kmDestinationsNotes
0.0000.000 Route 100 – HermannWestern terminus
8.68613.979 Route 100 – New HavenEastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Route C

Route C

Length14.385 mi (23.150 km)

Route C is a north-south Missouri supplemental route in western Franklin County, running between U.S. Route 50 near Leslie and Route 100 in New Haven. The route is a rural one, serving farms along its 14-mile (23 km) length.

Major intersections

The entire route is in Franklin County.

Locationmi[1]kmDestinationsNotes
Lyon Township0.0000.000 US 50 – Gerald, LeslieSouthern terminus
1.2351.988
Route ZZ west
Eastern terminus of Route ZZ
6.75410.870
Route YY east
South end of Route YY concurrency
7.81612.579
Route YY west
North end of Route YY concurrency
Boeuf Township12.43020.004
Route KK east
Western terminus of Route KK
New Haven14.38523.150 Route 100 – Washington, HermannNorthern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Route D

Route D

Length5.820 mi (9.366 km)

Route D is a north-south Missouri supplemental route nearly entirely within Crawford County, with its northern terminus in Franklin County near its southern edge. The route's southern terminus is at the beginning of state maintenance in w:Boone Township, Crawford County, Missouri, and its northern terminus is at an interchange with I-44 in Sullivan. The route connects Sullivan to numerous rural neighborhoods south of the city.

Major intersections

CountyLocationmi[1]kmDestinationsNotes
CrawfordBoone Township0.0000.000Rock Road westSouthern terminus; continuation west as Rock Road
FranklinSullivan5.2078.380 Historic US 66
5.8209.366 I-44 – St Clair, CubaNorthern terminus; diamond interchange

Route WW west
Continuation beyond northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Route E

Route E

Length14.366 mi (23.120 km)

Route E is an east-west Missouri supplemental route in Gasconade and Franklin Counties, serving as a bypass of Hermann for those traveling from northbound Route 19 to eastbound Route 100. The route connects Drake to New Haven.

Major intersections

CountyLocationmi[1]kmDestinationsNotes
GasconadeBoeuf Township0.0000.000 Route 19 – Drake, HermannWestern terminus
5.1278.251
Route H north
Southern terminus of Route H
FranklinBoeuf Township8.94114.389
Route VV north
Southern terminus of Route VV
11.58018.636
Route Y south
Northern terminus of Route Y
14.33623.072 Route 100 – Hermann, WashingtonEastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Route F

Route F

Length6.509 mi (10.475 km)

Route F is a highway in far eastern Franklin County and western Jefferson County, with a very small, 176.42 feet (53.77 m) section crossing through St. Louis County. The majority of the route is in Jefferson County, providing a bypass of BL I-44 to Eureka via Route FF. It is contiguous to Route OO, and is known as South First Street within the city limits of Pacific.

Major intersections

CountyLocationmi[1]kmDestinationsNotes
JeffersonMeramec Township0.0000.000Lynch Road southSouthern terminus; continuation as Lynch Rd.
0.6221.001
Route FF east
Western terminus of Route FF
4.0216.471
Route O west
Eastern terminus of Route O
St. LouisPacific5.178.32Unnamed Meramec River bridge; briefly enters St. Louis County
Franklin6.179.93
Route N west (W. Congress Street) / E. Congress Street east
Northern terminus of Route N; unsigned
6.50910.475
I-44 BL (Osage Street) to I-44

Route OO north (N. 1st Street)
Northern terminus; continuation as Route OO
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Route H

Route H

Length20.001 mi (32.188 km)

Route H is a north-south supplemental route in southwestern Franklin County, running from Route 185 in Sullivan at the southeastern end to U.S. Route 50 in Gerald at the northwestern end. The route is a two-lane road for its duration. It is contiguous with Route Y.

Major intersections

The entire route is in Franklin County.

Locationmi[1]kmDestinationsNotes
Sullivan0.0000.000 Route 185 – Spring BluffSouthern terminus
Boone Township5.8339.387
Route J south
Northern terminus of Route J
6.0889.798
Route AE south
Northern terminus of Route AE
10.34316.645
Route AC east
Western terminus of Route AC
13.33221.456
Route AN south
Northern terminus of Route AN
Gerald20.00132.188 US 50 – Rosebud, BeaufortNorthern terminus

Route Y north – Dissen
Continuation beyond northern terminus; southern terminus of Route Y
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Route K

Route K

Length14.337 mi (23.073 km)

Route K is a north-south supplemental route in southern Franklin County. It serves as part of an alternate route between Sullivan and Saint Clair. The route's southern terminus is at Route 185 near Sullivan, and its northern terminus is at Route 30/Route 47 in Parkway.

Major intersections

The entire route is in Franklin County.

Locationmi[1]kmDestinationsNotes
Meramec Township0.0000.000 Route 185 – SullivanSouthern terminus
Parkway14.33723.073
Route 30 / Route 47 to I-44 – Saint Clair
Northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Route M

Route M

Length2.352 mi (3.785 km)

Route M is a short north-south supplemental route in northeastern Franklin County. It serves as a connector, running between Route AT and Route 100 in Villa Ridge. The road is the main thoroughfare of Villa Ridge.

Major intersections

The entire route is in Villa Ridge, Franklin County.

mi[1]kmDestinationsNotes
0.0000.000 Route AT / Historic US 66 – UnionSouthern terminus
2.3523.785
Route 100 to I-44 – Washington
Northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Route N

Route N

Length17.513 mi (28.184 km)

Route N is a north-south supplemental route in eastern Franklin County. It connects Gravois Road in Lonedell to Route F in Pacific, and serves the communities in between. It is also known as Bend Road and West Congress Street throughout some portions of its route.

Major intersections

The entire route is in Franklin County.

Locationmi[1]kmDestinationsNotes
Lonedell0.0000.000

Route 30 (Gravois Road) to Route FF south – St. Clair, Cedar Hill, Luebbering
Southern terminus
Robertsville8.0712.99

Route O west to I-44
South end of Route O concurrency
Catawissa10.09316.243
Route O east – Pacific


Route HH south to Route 30
North end of Route O concurrency; Northern terminus of Route HH
Pacific17.51328.184 Route F (First Street) / Congress Street eastNorthern terminus and continuation as E. Congress Street; unsigned
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Route O

Route O

Length12.128 mi (19.518 km)

Main article: Missouri Route O (Franklin County)

Route O is an east-west Missouri supplemental route in eastern Franklin County, with a short section in Jefferson County. The road serves as a major thoroughfare through eastern Franklin County, connecting Catawissa and Robertsville with Pacific, Villa Ridge, and Union, subsequently providing access to I-44.

Route T

Route T

Length14.976 mi (24.102 km)

Route T is an east-west supplemental route in Franklin and St. Louis counties, and is contiguous to Route V. It serves as a loop of Route 100, providing access to Labadie, and bypassing Gray Summit and Villa Ridge. It is concurrent with the Lewis and Clark Trail for its entire length.

Major intersections

CountyLocationmi[1]kmDestinationsNotes
FranklinBoles Township0.0000.000
Route V west – Union

Route 100 east / Lewis and Clark Trail – New Haven


Route 100 west to I-44
Western terminus; continuation as Route V
Labadie3.7386.016
Route MM south – Gray Summit
Northern terminus of Route MM
St. LouisWildwood14.97624.102 Route 100 / Lewis and Clark Trail – Wildwood, Gray SummitEastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Route V

Route V

Length7.683 mi (12.365 km)

Route V is an east-west supplemental route in northern Franklin County. It serves as a bypass of Washington. It is contiguous to Route T.

Major intersections

The entire route is in Franklin County.

Locationmi[1]kmDestinationsNotes
Union0.0000.000
Route 47 to US 50 – Washington, St. Clair
Western terminus
Boles Township7.68312.365
Route T east / Route 100 / Lewis and Clark Trail – New Haven, Labadie
Eastern terminus; continuation as Route T
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Route W

Route W

Length1.014 mi (1.632 km)

Route W is a short east-west supplemental route in southern Franklin County. The route functions as a spur route from I-44 in Stanton southeast to the Meramec Caverns. It is contiguous to Route JJ.

Major intersections

The entire route is in Franklin County.

Locationmi[1]kmDestinationsNotes
Stanton0.0000.000
Route JJ west
Continuation beyond western terminus
I-44 – Rolla, Saint LouisWestern terminus; Diamond interchange
Meramec Township1.0141.632Twin Spring Road – Meramec CavernsEastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Route Y

Route Y

Length14.792 mi (23.805 km)

Route Y is a north-south supplemental route in northwestern Franklin County. It serves the rural communities between Gerald and New Haven. It is contiguous to Route H.

Major intersections

The entire route is in Franklin County.

Locationmi[1]kmDestinationsNotes
Gerald0.0000.000
Route H south / US 50 – Strain, Rosebud
Southern terminus; continuation as Route H
4.2286.804
Route ZZ west
Southern end of Route ZZ concurrency
4.6167.429
Route ZZ east
Northern end of Route ZZ concurrency
New Haven9.47715.252
Route YY east
Western terminus of Route YY
14.79223.805 Route ENorthern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Route AP

Route AP

Length0.688 mi (1,107 m)

Route AP is a short supplemental route in far eastern Franklin County. It connects Route NN with nearby Nike Elementary School.

Major intersections

CountyLocationmi[1]kmDestinationsNotes
FranklinCatawissa0.0000.000
Nike Base Road west to Route HH
Western terminus; continuation as Nike Base Road
0.6881.107
Route NN to Route 30 (Gravois Road)
Eastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Route AT

Route AT

Length4.772 mi (7.680 km)

Route AT is a short supplemental route in eastern Franklin County. It connects Villa Ridge to Union.

Major intersections

CountyLocationmi[1]kmDestinationsNotes
FranklinUnion0.0000.000
I-44 / US 50 east – St. Louis, Rolla

US 50 west – Union, Jefferson City

To Route AH
Western terminus
Villa Ridge0.7471.202
Route O east – Robertsville
Western terminus of Route O, access to Robertsville State Park
1.7862.874
Route M north
Southern terminus of Route M
4.7727.680 Route 100 / Lewis and Clark Trail – Washington, Gray Summit


To I-44 / US 50 – St. Louis, Rolla
Eastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Route BB

Route BB

Length3.074 mi (4.947 km)

Route BB is a north-south supplemental route in central Franklin County, running diagonally from Route 50 to Route A. It primarily serves the subdivisions west of Union.

Major intersections

The entire route is in Union, Franklin County.

mi[1]kmDestinationsNotes
0.0000.000 US 50 – Beaufort, UnionSouthern terminus
3.0744.947 Route A – KrakowNorthern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Route MM

Route MM

Length4.138 mi (6.659 km)

Route MM is a short highway in northeastern Franklin County.

Route NN

Route NN

Length10.263 mi (16.517 km)

Route NN is a highway in far eastern Franklin County, and western Jefferson County. The majority of the route is in Jefferson County, with a short segment in Franklin County. It serves as a connector from Pacific (via Route O) to Hillsboro (via Route B).

Major intersections

CountyLocationmi[1]kmDestinationsNotes
JeffersonCedar Hill0.0000.000
Route B south (Hillsboro Road) – Hillsboro
Route 30 (Gravois Road) – Cedar Hill, Dittmer
Southern terminus; continuation as Route B
FranklinCatawissa8.53313.733
Route AP west (Nike Base Road)
Eastern terminus of Route AP
Calvey Township10.26316.517 Route O – Catawissa, PacificNorthern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
  1. ^ a b c d e f g h i j k l m n o p q r Missouri Department of Transportation. "MoDOT HPMAPS". Retrieved 2024-04-15.