St. Louis Region
Lock and Dam 25 puts Winfield on the working Mississippi
Lock and Dam 25 near Winfield is a U.S. Army Corps of Engineers navigation feature that gives Lincoln County a direct working-river identity.
Winfield is a river town with working navigation infrastructure. The U.S. Army Corps of Engineers describes Lock and Dam 25 at Winfield as a 1,296-foot dam structure with a single 600-foot lock chamber. Missouri State Parks also lists the Lock and Dam No. 25 Historic District at 10 Sandy Slough Road in Winfield.
That makes the Mississippi edge of Lincoln County part of the river’s navigation system. Barges, floodwater, ice, and river engineering are all part of the local map here, even for people who live several miles inland.
For a local reader, the practical lesson is simple: Mississippi River questions near Winfield often point to federal navigation and river-management sources as well as county offices. Use the Corps page for the lock and dam, and use local or flood-map sources for parcel-specific questions nearby.
Where to see it
- Lock and Dam 25
Use USACE for current navigation, lock, dam, and visitor information.
References
More from Lincoln County: browse every local note for the county.
Last checked against the sources above: July 16, 2026.