Great Loop Lock Reference

Olmsted Locks and Dam

Reviewed planning reference for lock approach, communications, and float-plan preparation.

Ohio River

Olmsted Locks and Dam

Olmsted, IL

Latitude / Longitude37.178000
-89.059000

Phone618-748-6403

VHF Channel13

Operating AuthorityNot listed

Last ReviewedNot listed

Lock Location

Zoomed-in location for this Great Loop lock reference.

About This Lock

Segment: Ohio River. Route status: core inland-river route toward Tennessee/Cumberland options. USACE Louisville District lists Olmsted address and phone; Waterway Guide lists VHF 13; verify latest status. Source: https://www.lrd.usace.army.mil/Mission/Projects/Article/3638713/olmsted-locks-and-dam/

Before You Arrive

Fenders ready
Lines ready
Crew briefed
PFDs on deck
Radio on correct channel
Call / monitor lock
Check current notices

Plan With FPW

Add lock planning context to your route and account for lock delays in your float plan.

Plan a Float Plan

Official Source

Official source

Open official source

Navigation Safety Note

This page is a planning reference, not a substitute for official notices, charts, lockmaster instructions, or current local conditions. Always confirm lock status, operating hours, closures, restrictions, and instructions with the official authority before arrival.