Missouri State Route 100 is the main east-west highway across Northern Franklin County. It runs from the Franklin/St. Louis County Line to the Franklin/Gasconade County Line, via Gray Summit, Washington, and New Haven. MO St Rt 100 passes through the following towns in Franklin County. Gray Summit
Missouri Secondary State Route A, near Washington. Missouri Secondary State Route KK, near Washington. Missouri State Route 185, near Lyon. Missouri Secondary State Route C, near New Haven. Missouri Secondary State Route E, near New Haven. Missouri Secondary State Route B, near New Haven. Missouri Secondary State Route VV, near Berger. Missouri Secondary State Route B, near Berger. Missouri Secondary State Route Z, near Berger.
EB MO St Rt 100 in Gray Summit. EB MO St Rt 100 east of I-44/U.S. Rt. 50. A guide marker on a ramp from I-44/U.S. Rt. 50. A BGS on WB I-44/U.S. Rt. 50. A BGS on EB I-44/U.S. Rt. 50. A BGS on WB I-44/U.S. Rt. 50. A BGS on WB I-44/U.S. Rt. 50. A BGS on WB I-44/U.S. Rt. 50. A BGS on WB I-44/U.S. Rt. 50. A BGS on EB I-44/U.S. Rt. 50. EB MO St Rt 100 east of MO Sec St Rt AT. WB MO St Rt 100 west of MO Sec St Rt T/V. WB MO St Rt 100 east of Washington. A junction marker on NB MO St Rt 47. A junction marker on SB MO St Rt 47. EB MO St Rt 100 west of MO St Rt 47.
