StacksVerified U.S. regulatory reference

33 CFR §161.30

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
The VTS area consists of the navigable waters of the Ohio River between McAlpine Locks (Mile 606.8) and Twelve Mile Island (Mile 593), only when the McAlpine upper pool gauge is at 13.0 feet or above.