| 32.0 | Fisher Cave Nature Trail begins to flood. | | 29.0 | The main office at the Arapaho Campground begins flooding. | | 20.0 | Moderate flooding begins. Camp grounds and farm land on left bank begin to flood. | | 18.3 | The Meramec State Park campground shower facility begins flooding. | | 17.0 | At this height the entire Arapaho campground will be under water. | | 15.0 | Flood Stage. Minor flooding begins. River cottages begin to flood. | | 14.5 | At this height the Arapaho Campground will evacuate campers. This campground is about 8.5 river miles downstream from the gage. | | 14.0 | The main entrance road to the Meramec State Park campground begins flooding, blocking acess to cabins 1-8, the picnic and playground areas, and the Wilderness Trailhead parking lot. | | 11.5 | A small bridge in the back of Meramec State Park park is flooded, cutting the park in two. If the river continues to rise, park officials will evacuate the campgrounds at this point. | | 11.0 | Right Bank begins to overflow flooding wooded areas. | | 6.0 | When the river is rising above this height, canoe outfitters will generally not rent out canoes or rafts. |
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1) 33.50 ft on 08/01/1915
2) 32.22 ft on 12/04/1982
3) 32.00 ft on 06/09/1945
4) 31.75 ft on 03/20/2008
5) 29.23 ft on 04/12/1994
6) 27.95 ft on 11/19/1985
7) 27.50 ft on 06/19/1985
8) 27.42 ft on 07/27/1998
9) 26.96 ft on 05/01/1983
10) 26.50 ft on 11/15/1993
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1) 0.00 ft on 09/20/1956
2) 0.08 ft on 12/12/2000
3) 0.10 ft on 11/07/2000
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