Great Loop Lock Reference

Howell Heflin Lock and Dam

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

Tennessee-Tombigbee / Tombigbee

Howell Heflin Lock and Dam

Gainesville, AL

Latitude / Longitude32.836367
-88.135100

Phone205-652-9258

VHF Channel16/14

Operating AuthorityNot listed

Last ReviewedNot listed

Lock Location

Zoomed-in location for this Great Loop lock reference.

About This Lock

Segment: Tennessee-Tombigbee / Tombigbee. Route status: core inland-river route to Mobile. Waterway Guide lists phone/VHF. Source: https://www.sam.usace.army.mil/Missions/Civil-Works/Recreation/Tennessee-Tombigbee-Waterway/Navigation/

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.