Missouri / Mississippi River /

Maple Island Access

Boat ramp · on Mississippi River · near West Alton · Missouri

Zebra mussels

Zebra mussels (latest report 2001) reported in Mississippi River 860 m from this launch (USGS Nonindigenous Aquatic Species database). Clean, drain and dry your boat, trailer and gear before you leave, and do not move water, plants or live bait to another water.

USGS Nonindigenous Aquatic Species database · checked October 18, 2026

Status not reported No closure has been posted for this launch, but its agency does not publish open or closed status. Check with the managing agency before you tow.

At the launch

Type
Boat ramp
Fee
Free
Ramp surface
Concrete
Coordinates
38.86522, -90.15256

Directions (Google) Apple Maps

Channel depths in feet from the Army Corps' surveys (St. Louis District; the one nearest this launch is of June 4, 2026). Not for navigation.

Conditions

On the river

River mile 200.6 on Mississippi River · U.S. Army Corps of Engineers Navigation Mile Markers, placed between its mile markers

Sources: U.S. Army Corps of Engineers Navigation Mile Markers.

Channel survey

The Army Corps surveys the channels it maintains and posts every survey.

  • Mosenthein Reach Upper Mississippi · 0.2 mi from this launch
    Before-dredging survey of June 4, 2026 by the St. Louis District. Soundings on the sheet from 7 to 53.9 ft; the Corps maintains a 9 ft channel here. Survey sheet (PDF)

US Army Corps of Engineers hydrographic surveys, from eHydro. A survey shows the bottom on the day it was made; channels shoal after high water and change with dredging. Not for navigation.

On Mississippi River

River in Missouri. All launches on Mississippi River.

Community

Where people who use Mississippi River talk about it.

Nearby launches

Sources

Why it is listed as public: listed by U.S. Army Corps of Engineers St. Louis District boat ramps. Something wrong, or is this launch private? Send a correction; it goes to a person.