Missouri Route 100

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Route 100 marker

Route 100
Route information
Length 121.144 mi[1] (194.962 km)
Major junctions
West end US 50 in Linn
East end Chouteau Avenue at the I-44 / I-55 overpass in St. Louis
Location
Counties Osage, Gasconade, Franklin, St. Louis, St. Louis City
Highway system
Route 99Route 101

Route 100, also named Manchester Road through St. Louis County and Manchester Avenue through St. Louis City, is a state highway in the U.S. state of Missouri. It runs from Linn, Missouri at U.S. Route 50 to Interstate 55 in St. Louis. The highway is 121 miles (195 km) long.

Route description[edit]

Route 100 begins at US 50 in Linn. The highway heads north from Linn until it encounters the Missouri River, where it turns eastward to parallel the river. At Chamois, Missouri, it serves as the northern terminus of Route 89. It then enters Gasconade County near Morrison and bridges the Gasconade River near its mouth at the eponymous town. In the county seat, Hermann, Route 100 has a short concurrency with Route 19. The highway passes through New Haven, in Franklin County, 14 miles (23 km)[2] later. The highway then intersects Route 185 at its northern terminus, and Route 47 in Washington. It becomes an expressway outside the city limits, which runs to near Gray Summit. Route 100 crosses over Interstate 44 two times, with an interchange providing access to the freeway.

Northeast of Gray Summit, Route 100 crosses into St. Louis County, entering the city limits of Wildwood at the same time. Just north of the intersection with Route T, the highway becomes an expressway again. In Wildwood, it has an interchange with Route 109. Route 100 then enters Ellisville, where the expressway ends. From here all the way into St. Louis, the highway also carries the local name Manchester Road. In Ellisville, Route 340 (Clarkson Road) meets its southern terminus. Route 100 then proceeds into Ballwin. It then divides Manchester from Winchester, Missouri before wholly entering Manchester, where it has a single-point urban interchange (SPUI) with Route 141. Route 100 then runs through a swath of unincorporated territory en route to Des Peres. The route crosses over Interstate 270, the St. Louis beltway, in that town. East of Ellisville, Route 100 enters Kirkwood; there, Manchester Road intersects Kirkwood Road (the name given to Lindbergh Boulevard in Kirkwood), which carries US 61/67. Route 100 then passes through the smaller suburbs of Warson Woods, Glendale, Rock Hill, Brentwood, and Maplewood.

After leaving Maplewood, Route 100 continues into the independent City of St. Louis. As Manchester Road crosses Vandeventer Avenue, the highway becomes Chouteau Avenue. Route 100 continues east on Chouteau Avenue towards downtown St. Louis. The route ends just east of South Broadway, at the Interstate 55 overpass. Due to the nearby east terminus of I-44, there is no interchange with I-55 at the state route's terminus.

The Lewis and Clark Trail[edit]

Most of Route 100 is part of the Lewis and Clark Trail. From Kirkwood Rd in Kirkwood to three miles (5 km) west of Wildwood is one section, where the trail turns off on Route T. Route T will eventually end, once again, at Route 100 northwest of I-44 and continue down Route 100 all the way to five miles (8 km) north of Linn (where Route 100 ends), and the Lewis and Clark Trail turns off onto Route C.

History[edit]

Much of the road between St. Louis and Gray Summit was the original U.S. Route 66, though this was only temporary until US 66 moved to its later location at what is now Watson Rd (Route 366) and Interstate 44. During, and after US 66 was moved off Manchester Rd, the road remained part of U.S. Route 50 for many years.

Major intersections[edit]

CountyLocationmi[1]kmDestinationsNotes
OsageLinn0.0000.000 US 50 (Main Street) – Linn, Loose Creek, Jefferson City
Luystown5.4108.707 Route C west / Lewis and Clark Trail west – FrankensteinWestern end of Lewis and Clark Trail overlap
Chamois17.84028.711 Route 89 south – Linn
GasconadeHermann41.18166.274 Route 19 south (South Market Street) – SwissWestern end of Route 19 overlap
41.89567.423 Route 19 north (North Market Street) – New FlorenceEastern end of Route 19 overlap
Franklin62.301100.264 Route 185 south – Beaufort
Washington70.379113.264 Route 47 – Union, Warrenton
76.957123.850 Route T east / Route V west / Lewis and Clark Trail east – Labadie, UnionEastern end of Lewis and Clark Trail overlap
80.178129.034 Route AT west / Historic US 66 west to I-44 / US 50Western end of Historic US 66 overlap
82.173132.245 BL I-44 east / Historic US 66 eastEastern end of Historic US 66 overlap; west end of I-44 Bus. / Historic US 66 (1926-1933) overlap
82.218–
82.231
132.317–
132.338
I-44 / US 50 – St. Clair, PacificI-44 exit 253; east end of I-44 Bus. overlap
Gray Summit82.692133.080 Route MM north – Labadie
88.046141.696 Route OO south – Pacific
St. LouisWildwood89.602144.200 Historic US 66 (1926-1933) east (Manchester Road)Eastern end of Historic US 66 (1926-1933) overlap
93.161149.928 Route T west / Lewis and Clark Trail west – St. AlbansWestern end of Lewis and Clark Trail overlap
95.798154.172 Route 109 (Eatherton Road)Interchange
97.319156.620 Historic US 66 (1926-1933) west (Manchester Road)Western end of Historic US 66 (1926-1933) overlap
Ellisville99.042159.393 Route 340 east (Clarkson Road)
Manchester103.221–
103.230
166.118–
166.133
Route 141Interchange
Des Peres106.321171.107Des Peres RoadInterchange
106.584–
106.598
171.530–
171.553
I-270 – Chicago, MemphisI-270 exit 9
Kirkwood109.046175.493 US 61 / US 67 / Lewis and Clark Trail east / Historic US 66 (1936-1965) (North Kirkwood Road)Eastern end of Lewis and Clark Trail overlap
City of St. Louis114.582184.402 Historic US 66 (1926-1933) east (McCausland Avenue)Eastern end of Historic US 66 (1926-1933) overlap
117.655189.347 Historic US 66 (1926-1933) west (Boyle Avenue)Western end of Historic US 66 (1926-1933) overlap
120.674194.206 Historic US 66 (Tucker Boulevard)Eastern end of Historic US 66 (1926-1933) overlap
121.144194.9623rd StreetEastern end of state maintenance (under I-44 / I-55)
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References[edit]

Route map:

KML is from Wikidata
  1. ^ a b Missouri Department of Transportation (August 29, 2015). MoDOT HPMAPS (Map). Missouri Department of Transportation. Retrieved August 29, 2015.
  2. ^ Official Highway Map (Map) (2007-2008 ed.). Missouri Department of Transportation.