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CHESAPEAKE, Va. -- The sun rises over the Great Bridge lock on the Albemarle and Chesapeake Canal, here May 31, 2012. The canal is part of the Atlantic Intracoastal Waterway, which stretches from Norfolk, Va., to the Florida Keys. (U.S. Army Photos/Patrick Bloodgood)
SLIDESHOW | 6 images | Great Bridge Sunrise
Project Scope

Maintained by the Norfolk District, the Dismal Swamp Canal and the Albemarle and Chesapeake Canal form alternative routes along the Atlantic Intracoastal Waterway between the Chesapeake Bay and Albemarle Sound. These two canals are part of the greater Atlantic Intracoastal Waterway which stretches from Norfolk, Va. and Miami, Fla., and offers pleasure boaters and commercial shippers with a protected inland channel.

Albemarle and Chesapeake Canal:
 Boaters drafting deeper than six feet can utilize the Albemarle and Chesapeake Canal, which is maintained to a depth of 12 feet.

The Great Bridge Lock in Chesapeake Va., has an operating staff on duty 24 hours a day, seven days a week, 365 days a year. The lock opens on demand, but boater should note that the City of Chesapeake’s Great Bridge Bridge, located adjacent to the lock, opens every hour from 6:00 a.m., to 7:00 p.m., and on demand after 7:00 pm.  The schedule is subject to change during adverse weather conditions. The Great Bridge Lock operators can be reached at (757) 547-3311 or marine radio channel 13.

North Landing Bridge is also located opens every hour and half hour from 6:00 a.m. to 7:00 p.m. and on demand at all times for commercial traffic and after 7:00 pm. North Landing Bridge operators can be reached at (757) 482-3081 or marine radio channel 13.

Dismal Swamp Canal:

NOTICE TO MARINERS: Effective at on October 31, 2017, the locks at Deep Creek, Virginia and South Mills, North Carolina will return to their normal operating schedule to accommodate vessels desiring to use the Dismal Swamp Canal (Route 2) of the Atlantic Intracoastal Waterway.

The locks will be operated at 8:30 AM, 11:00 AM, 1:30 PM, and 3:30 PM seven days per week. The drawbridges adjacent to these locations will operate as normal and in conjunction with the lock openings. Vessels are allowed to moor overnight in the canal. There will only be one operator at Deep Creek and one at South Mills, so the bridge will not be manned when the lock is being operated, and vice versa. Locks and bridges monitor channel 13.


The latest surveys of AIWW-Deep Creek, AIWW-Dismal Swamp Canal, and AIWW-Turners Cut are available at: http://www.nao.usace.army.mil/HydroSurveys/. Boaters are advised to review these surveys and of the following conditions:


  1. AIWW-Deep Creek Channel north of the Deep Creek Lock currently has a controlling depth of 5.5 MLLW at centerline. 
  2. AIWW-Dismal Swamp Canal currently has a controlling depth of 6 feet at centerline and 50 feet wide except at The Big Entry Ditch (MM #13) and the Feeder Ditch (MM #22) where the width narrows to approximately 25 feet wide. These shoaled areas have been marked with green and red stakes to show the channel. Due to the narrow channel, only one vessel can pass in these two areas of the canal at a time.
  3. AIWW-Turners Cut Channel just south of the South Mills Lock currently has a controlling depth of 5.9 feet at center line and 80 feet wide. A remaining shoal south of Joyce Creek has been marked with green and red stakes to show the channel where the canal narrows to approximately 40 feet wide. Due to the narrow channel, only one vessel can pass in this area of the Turners Cut at a time.
  4.  Duckweed is currently heavy in the Dismal Swamp Canal. Boaters should clean their strainers as needed. The Lake Drummond Reservation is still open to visitors using canoes and kayaks, the boat tram is still inoperative.
  5. Norfolk District Corps of Engineers crane barge will continue working in the canal until the first week in November removing shoals along the toe of the canal. Additional dredging is being scheduled for this winter in the Deep Creek Channel and early next spring in the Dismal Swamp Canal.

Those planning to use this route are advised to refer to the Coast Guard Local Notice to Mariners, contact the lock operator, or call the Norfolk District office at 757-201-7642.