Great Loop Lock Reference

Holt Lock and Dam

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

Black Warrior-Tombigbee Waterway

Holt Lock and Dam

Cottondale, AL

Latitude / Longitude33.250000
-87.450000

Phone205-553-1711

VHF Channel16 verify

Operating AuthorityNot listed

Last ReviewedNot listed

Lock Location

Zoomed-in location for this Great Loop lock reference.

About This Lock

Segment: Black Warrior-Tombigbee Waterway. Route status: all-possible Mobile/Tombigbee side route above Demopolis. Source lists phone numbers for Black Warrior-Tombigbee locks; coordinates approximate. Source: https://www.tenntom.org/locks-dams/

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.