Lock Status

Canoeing down the Mississippi? Pushing a tow up the Ohio? Crossing Florida on the Okeechobee Waterway, or spending a year on the Great Loop? Sooner or later you'll reach a lock. Lock Status shows what's happening at every U.S. Army Corps of Engineers navigation lock, so you know what's ahead before you get there.

SEE EVERY LOCK
• Delays, stoppages and the vessels waiting and locking through, colored by how busy each lock is
• Pool and tailwater levels, chamber sizes, lock hours and navigation notices
• Browse by river, search by name, find the locks closest to you, or use the map
• Favorite the locks you pass most often

HAIL THE LOCK
• Each lock's VHF channel and phone number, one tap to call
• Towboats: see whether the tow fits the chamber, or how many cuts it needs
• Pleasure boaters: what to say on the radio, plus tips for locking through

PLAN YOUR TRIP
• Build a route lock by lock, and see the next lock, how far it is and what's waiting there
• Great Loop planning, with the Loop's route choices

MADE FOR THE WATER
• Night mode in red on black protects your night vision in the pilothouse; Sun mode adds contrast for bright days
• In a dead spot, the app shows the last data it loaded and when it's from, and refreshes when you're back in range
• Widgets for your Home Screen, Lock Screen, Mac desktop and menu bar
• In English, Spanish, French, Russian, Chinese, Vietnamese, Filipino and Haitian Creole
• Full VoiceOver support and larger text sizes

LOCK STATUS PREMIUM
Free: lock status, delays, stoppages, queues, the map, VHF channels and phone numbers, what to say on the radio, one trip, widgets, and Night and Sun modes.

Premium adds:
• Alerts when a stoppage starts or clears, a delay passes your limit, or a navigation notice is posted, even when the app is closed
• Live Activities that keep a lock updated on your Lock Screen and in the Dynamic Island
• The full trip planner: more than one trip, Great Loop planning, arrival times and the delays ahead
• 30 days of traffic and monthly cargo tonnage at every lock

Premium is $1.99 a month or $9.99 a year, with a free first week. It's billed to your Apple Account and renews automatically unless you cancel at least 24 hours before the end of the current period. Manage or cancel it anytime in your Apple Account settings.

Lock information comes from the U.S. Army Corps of Engineers' public Lock Performance Monitoring System and is provided on a best-effort basis. Lock Status isn't affiliated with the Corps of Engineers. Always follow the lockmaster's instructions.

Terms of Use: https://lockstatus.ajthom.dev/terms/
Privacy Policy: https://lockstatus.ajthom.dev/privacy/