After crossing the Mississippi River into St. Louis on the Eads Bridge with its new pedestrian walkway, the ADT immediately enters the Jefferson National Expansion Memorial, which houses the Museum of Westward Expansion and is the site of the 630-foot-high Gateway Arch. The route then follows city sidewalks in an urban environment to Forest Park and crosses the Missouri River on the Discovery Bridge at St. Charles. Originally known as Les Petites Cotes (the little hills) by the French, then San Carlos by the Spanish, the town became St. Charles in 1804.
| CUMULATIVE MILES |
CODE |
DESCRIPTION EAST TO WEST |
| | | USE ADT DETAIL & ST LOUIS DETAIL OF STATE HIGHWAY MAP |
| 0 | | ILLINOIS LINE, EADS BRIDGE. EXIT METRO & HEAD S ON COMMERCIAL ST TO GATEWAY ARCH. |
| 0.6 | | GATEWAY ARCH |
| 0.8 | | JUNCTION GATEWAY ARCH & MARKET ST, HEAD WEST ON MARKET |
| 3 | | AT JUNCTION WITH COMPTON, MARKET BECOMES FOREST PARK |
| 3.4 | | JUNCTION FOREST PARK & GRAND AVE, TURN RIGHT |
| 3.6 | | JUNCTION GRAND AVE & PINE BLVD, TURN LEFT |
| 5.5 | | JUNCTION PINE & GRAND DR IN FOREST PARK. TAKE BIKE TRAILS THROUGH PARK. STAY AT N EDGE OF PARK AND HEAD STRAIGHT W AS MUCH AS POSSIBLE. EXIT PARK ONTO WYDOWN BLVD. |
| 7.7 | | JUNCTION PARK TRAILS & WYDOWN BLVD |
| 9.6 | | JUNCTION WYDOWN BLVD & HANLEY RD, TURN RIGHT |
| 10.1 | | JUNCTION HANLEY & FORSYTHE RD, TURN LEFT. FORSYTHE JOINS WITH MARYLAND RD & GOES W. |
| 10.7 | | JUNCTION FORSYTHE & MARYLAND, BEAR L (W) |
| 11 | | MARYLAND BECOMES LADUE RD, KEEP HEADING W |
| 14.3 | | LADUE CROSSES LINDBERGH R |
| 18.5 | | JUNCTION LADUE & N MASON RD, TURN RIGHT (N) |
| 19.1 | | N MASON TURNS R AT JUNCTION WITH MUIRFIELD LN |
| 19.5 | | N MASON TURNS L AT JUNCTION WITH HIBLER RD |
| 20.6 | | JUNCTION N MASON & OLIVE RD, TURN LEFT. NOTE: MANY SERVICES AVAILABLE IN THIS AREA. |
| 21 | | JUNCTION OLIVE & FEE FEE RD, TURN RIGHT |
| 22.2 | | JUNCTION FEE FEE RD & BENNINGTON PL, TURN LEFT |
| 22.7 | | JUNCTION BENNINGTON PL & BASSTON DR, TURN LEFT |
| 23 | | JUNCTION BASSTON DR & MARINE AVE, TURN LEFT |
| 25.4 | | JUNCTION MARINE AVE & CREVE COEUR MILL RD, TURN RIGHT |
| 26.6 | | JUNCTION CREVE COEUR MILL & EARTH CITY FREEWAY, TURN LEFT. CAUTION: BUSY 4 LANE RD, RIDE OR WALK CAREFULLY. |
| 29.9 | | JUNCTION EARTH CITY FWY & ST CHARLES ROCK RD, TURN LEFT |
| 30.6 | | JUNCTION ST CHARLES ROCK & MISSOURI BOTTOM RD, TURN RIGHT |
| 31.8 | | JUNCTION MISSOURI BOTTOM RD & MO 370, TURN LEFT. CROSS MISSOURI RIVER ON DISCOVERY BRIDGE - MO 370 |
| 32.4 | | TAKE BIKE PATH AT BOTTOM OF BRIDGE ONTO KATY TRAIL WHICH PASSES UNDER BRIDGE, TURN EAST TO ST. CHARLES |
| | | End of Segment 1 |
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