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Drawings & Resources
U.S. Locks


This LEFT column contains an alphabetical listing of locks on
rivers with names Alabama through Monongahela.
Select a river below to jump to the information:


This RIGHT column contains an alphabetical listing of locks on rivers with names Morgan City through Willamette.
Select a river below to jump to the information:
 

ALABAMA RIVER
(mile 0 - Junction of Mobile and Tombigbee Rivers)
Lock
Mile
Size
Claiborne
72.5
600' x 84'
Millers Ferry
133.0
600' x 84'
Robert F. Henry
236.2
600' x 84'
[back to top]
ALLEGHENY RIVER
(mile 0 - The Point Pittsburgh, PA)
Lock
Mile
Size
2
6.7
360' x 56'
3
14.5
360' x 56'
4
24.2
360' x 56'
5
 30.4 360' x 56'
6
 36.3 360' x 56'
7
 45.7 360' x 56'
8
 52.6 360' x 56'
9
 62.2 360' x 56'
[back to top]
APALACHICOLA - CHATTAHOOCHEE - FLINT RIVERS
 (mile 0 -Mouth of Apalachicola River)
Lock
Mile
Size
George Andrews
46.5
450’ x 82’
Walter F. George
75.0
450’ x 82’
Jim Woodruff
107.6
450’ x 82’
[back to top]
ARKANSAS RIVER:(McClellan-Kerr Arkansas River System)
(mile 0 - Junction of White River with Mississippi River)
Lock
Mile
Size
Norrell
10.3
600’ x 110’
2
13.2
600’ x 110’
Joe Hardin
50.2
600’ x 110’
Emmett Sanders
 66.0 600’ x 110’
5
 86.3 600’ x 110’
David D. Terry
 108.1 600’ x 110’
Murray
125.4 600’ x 110’
Toad Suck Ferry
155.9 600’ x 110’
Arthur V. Ormond
176.9 600’ x 110’
Dardanelle
 205.5 600’ x 110’
Ozark - Jeta Taylor
256.8 600’ x 110’
13
292.8 600’ x 110’
W. D. Mayo
 319.6 600’ x 110’
Robert S. Kerr
 336.1 600’ x 110’
Webbers Falls
 368.9 600’ x 110’
Chouteau 401.4 600' x 110'
Newt Graham 421.6 600' x 100'
[back to top]
ATLANTIC INTRACOASTAL WATERWAY
(mile 0 - Foot of W. Main St. - Norfolk, VA; locks to connecting waterways)
Lock
Mile
Size
Great Bridge
Great Dismal Swamp Canal
11.5
600’ x 75’
Deep Creek
10.6
300' x 52'
South Mills
33.2
300' x 52'
Canaveral Barge Canal
 894 600' x 90'
[back to top]
BLACK ROCK WATERWAY
 (mile 0- Junction with Niagara River)
Lock
Mile
Size
Black Rock
0
625’ x 68’
[back to top]
CAPE FEAR RIVER
 (mile 0 - Point Peter at Intersection of Cape Fear and N.E. Cape Fear Rivers)
Lock
Mile
Size
1
39.0
200’ x 40’
2
71.5
200’ x 40’
William D. Husker
95.0
200’ x 40’
[back to top]
CHARLES RIVER
(mile 0- River Mouth at Boston Harbor)
Lock
Mile
Size
Charles River
0.55
300’ x 40’
200’ x 25’
200’ x 25’
[back to top]
CLINCH RIVER
 (mile 0- Junction with Tennessee River)
Lock
Mile
Size
Melton Hill
23.1
400’ x 75’
[back to top]
COLUMBIA RIVER
 (mile 0 - River Mouth)
Lock
Mile
Size
Bonneville
145.3
675’ x 86’
Dalles
190.1
650’ x 84’’
John Day
215.6
650’ x 84’
McNary
 292.9 650’ x 84
[back to top]
CONNECTICUT RIVER
(mile 0- River Mouth)
Lock
Mile
Size
Windsor
55.0
88’ x 19’
[back to top]
CROSS FLORIDA BARGE CANAL
 (mile 0 - Mouth of St. John’s River)
Lock
Mile
Size
Henry Holland Buckman
82.0
600’ x 84’
*Eureka
104.0
600’ x 84’
*R.N. Bert Dosh
120.0
600’ x 84’
*Dunnellon
147.0 600’ x 84’
Inglis
 160.0 600’ x 84’
[back to top]
CUMBERLAND RIVER
 (mile 0 - Junction with Ohio River)
Lock
Mile
Size
Barkley
30.6
800’ x 110’
Cheatham
148.7
800’ x 110’
Old Hickory
216.2
400’ x 84’
Cordell Hull
 313.5 400’ x 84’
[back to top]
FOX RIVER
(mile 0 - River Mouth)
Lock
Mile
Size
DePere
7.15
144’ x 35’
Little Kaukauna
13.12
144’ x 35’
Rapide Croche
19.16
144’ x 35’
Kaukauna Lock 5
 22.69 144’ x 35’
Kaukauna Lock 4
 23.04 144’ x 35’
Kaukauna Lock 3
23.22 144’ x 35’
Kaukauna Lock 2
 23.36 144’ x 35’
Kaukauna Lock 1
 23.57 144’ x 35’
Kaukauna Guard
 23.98 144’ x 35’
Combined
 25.40 144’ x 35’
Little Chute
 26.34 144’ x 35’
Little Chute Guard
 26.53 144’ x 35’
Cedars
27.32 144’ x 35’
Appleton Lock 4
 30.76 144’ x 35’
Appleton Lock 3
 31.31 144’ x 35’
Appleton Lock 2
 31.60 144’ x 35’
Appleton Lock 1
 31.96 144’ x 35’
Menasha
 37.05 144’ x 35’
[back to top]
GREEN RIVER
(mile 0 - Junction with Ohio River)
Lock
Mile
Size
1
9.10
600’ x 84’
2
63.10
600’ x 84’
3
108.50
137.5’ x 35.8’
[back to top]
GULF INTRACOASTAL WATERWAY
(mile 0 - Harvey Lock)
Lock
Mile
Size
Bayou Bienvenu Floodgate
15.2 EHL
56’W
Inner Harbor Navigational (Industrial)
6.1 EHL
640’ x 75’
Algiers
9.3 Miles East of 6.3 WHL
760' x75'
Harvey
 0.0 425' x75'
Bayou Boeuf
 93.3 WHL 1156' x 75'
Berwick
97.8 WHL 300' x 45'
Leland Bowman
 162.7 WHL 1160 x 110'
Calcasieu
 238.5 WHL 1180' x 75'
Brazos River Floodgate
 401.2WHL 75'W
Colorado River
 441.5WHL 750' x 75'
[back to top]
HUDSON RIVER
 (mile 0 - The Battery, N.Y.C.)
Lock
Mile
Size
Troy
153.9
492.5’ x 44.4’
[back to top]
ILLINOIS WATERWAY
(mile 0 -Grafton, IL)
Lock
Mile
Size
New La Grange
80.2
600' x 110'
Peoria
157.7
600' x 110'
Starved Rock
231.0
600' x 110'
Marseilles
 244.6 600' x 110'
Dresden Island
 271.5 600' x 110'
Brandon Road
 286.0 600' x 110'
Lockport
 291.0 600' x 110'
Thomas J. O'Brian
 326.3 1000' x 110'
Chicago Harbor 327.2 600' x 80'
[back to top]
KANAWHA RIVER
(mile 0 -Point Pleasant, WV)
Lock
Mile
Size
Winfield
31.1
800' x 110'
360' x 56'
360' x 56'
Marmet
 67.7 800' x 110'
  360' x 56'
    360' x 56'
London
 82.8 360' x 56'
[back to top]
KANAWHA SHIP CANAL
 (James River at Richmond, VA)
Lock
Mile
Size
Kanawha Ship Canal
0
156' x 35'
[back to top]
KASKASKIA RIVER
(mile 0 - Junction with Mississippi River )
Lock
Mile
Size
Kaskaskia
0.8
360' x 84'
[back to top]
KENTUCKY RIVER
(mile 0 -River Mouth)
Lock
Mile
Size
1
4.0
145' x 38'
2
31.0
145' x 38'
3
42.0
145' x 38'
4
 65.0 145' x 38'
5
 82.2 145' x 38'
6
 96.2 147' x 52'
7
 117.0 146' x 52'
8
 139.9 146' x 52'
9
 157.5 148' x 52'
10
 176.4 148' x 52'
11
 201.0 148' x 52'
12
 220.9 148' x 52'
13
 239.9 148' x 52'
14
 249.0 148' x 52'
[back to top]
LAKE HURON INLAND ROUTE
 (mile 0 - Mouth at Lake Huron)
Lock
Mile
Size
Cheboygan River
1.64
75' x 18'
Crooked River
33.36
60' x 16'
[back to top]
LAKE WASHINGTON SHIP CANAL
 (mile 0 - Mouth at Puget Sound)
Lock
Mile
Size
Hiram M. Chittenden
1.2
760' x 80'
123' x 28'
[back to top]
MISSISSIPPI RIVER, LOWER
 (mile 0 -Head of Passes; locks to connecting waterways)
Lock
Mile
Size
Ostrica
25.7 AHP
250' x 40'
Empire
29.5 AHP
200' x 40'
Algiers
88.0 AHP
760' x 75'
Inner Harbor Navigational Canal (Industrial Canal)
92.6 AHP 640' x 75'
Harvey Canal
 98.3 AHP 425' x 75'
Port Allen
 228.5 AHP 1202' x 84'
Old River
 304.0 AHP 1200' x 75'
[back to top]
MISSISSIPPI RIVER, UPPER
 (mile 0 -Cairo, IL)
Lock
Mile
Size
Upper St. Anthony Falls
853.7
400' x 56'
Lowerr St. Anthony Falls
853.4
400' x 56'
1
847.6
400' x 56'
2
 815.2 600' x 110'
3
 796.9 600' x 110'
4
 752.8 600' x 110'
5
 738.1 600' x 110'
5A
 728.5 600' x 110'
6
 714.3 600' x 110'
7
 702.5 600' x 110'
8
 679.2 600' x 110'
9
 647.9 600' x 110'
10
 615.1 600' x 110'
11
 583.0 600' x 110'
12
 556.7 600' x 110'
13
 522.5 600' x 110'
14
 493.3 600' x 110'
15
 482.9 600' x 110' LC
    360' x 110' RC
16 457.2 600' x 110'
17 437.1 600' x 110'
18 410.5 600' x 110'
19 364.2 1200' x 110'
20 343.2 600' x 110'
21 324.9 600' x 110'
22 301.2 600' x 110'
24 273.4 600' x 110'
25 241.4 600' x 110'
Melvin Price 200.8 1200' x 110'
    600' x 110'
27 185.1 1200' x 110' MAIN
    600' x 110' AUX
[back to top]
MONONGAHELA RIVER
 (mile 0 - The Point Pittsburgh, PA)
Lock
Mile
Size
2
11.2
720' x 110'
360' x 56'
3
23.8
720' x 56'
  360' x 56'
4
 41.5 720' x 56'
  360' x 56'
Maxwell
 61.1 720' x 84'
  720' x 84'
Grays Landing 82.0 720' x 84'
Ponit Marion 90.8 720' x 84
Morgantown 102.0 600' x 84'
Hildebrand 108.0 600' x 84'
Opekiska 115.4 600' x 84'
 
MYSTIC RIVER
 (mile 0 - River Mouth at Boston Harbor)
Lock
Mile
Size
Amelia Earhardt
1.6
325' x 45'
120' x 22'
120' x 22'
[back to top]
NEW YORK STATE BARGE CANAL
 (mile 0 -Troy Lock & Dam - Hudson River)
Lock
Mile
Size
Erie Canal
Section
ERIE 2
3
300' x 43.5'
3
3
300' x 43.5'
4
 4 300' x 43.5'
5
 4 300' x 43.5'
6
 7 300' x 43.5'
7
 15 300' x 43.5'
8
 26 300' x 43.5'
9 31 300' x 43.5'
10 37 300' x 43.5'
11 41 300' x 43.5'
12 46 300' x 43.5'
13 56 300' x 43.5'
14 64 300' x 43.5'
15 67 300' x 43.5'
16 73 300' x 43.5'
17 81 300' x 43.5'
18 85 300' x 43.5'
19 98 300' x 43.5'
20 108 300' x 43.5'
21 126 300' x 43.5'
22 127 300' x 43.5'
23 156 300' x 43.5'
24 175 300' x 43.5'
25 205 300' x 43.5'
26 211 300' x 43.5'
27 223 300' x 43.5'
28A 224 300' x 43.5'
28B 228 300' x 43.5'
29 238 300' x 43.5'
30 241 300' x 43.5'
32 258 300' x 43.5'
33 259 300' x 43.5'
34/35 322 300' x 43.5'
Champlain Canal Section    
1 6 300' x 43.5'
2 10 300' x 43.5'
3 12 300' x 43.5'
4 15 300' x 43.5'
5 29 300' x 43.5'
6 33 300' x 43.5'
7 39 300' x 43.5'
8 41 300' x 43.5'
9 47 300' x 43.5'
11 56 300' x 43.5'
12 63 300' x 43.5'
Oswego Canal Section    
1 165 300' x 43.5'
2 175 300' x 43.5'
3 175 300' x 43.5'
5 182 300' x 43.5'
6 185 300' x 43.5'
7 185 300' x 43.5'
8 186 300' x 43.5'
Cayuga - Seneca Canal Section    
1 208 300' x 43.5'
2/3 212 300' x 43.5'
4 217 300' x 43.5'
[back to top]
OHIO RIVER
(mile 0 - Pittsburgh, PA)
Lock
Mile
Size
Emsworth
6.2
600' x 110' LC
360' x 56' RC
Dashields
13.3
600' x 110' LC
  360' x 56' RC
Montgomery
 31.7 600' x 110' LC
  360' x 56' RC
New Cumberland
 54.4 600' x 110' LC
  1200' x 110' RC
Pike Island 84.2 600' x 110' LC
    1200' x 110' RC
Hannibal 126.4 1200' x 110' MAIN
    600' x 110' AUX
Willow Island 162.4 600' x 110' LC
    1200' x 110' RC
Belleville 203.9 1200' x 110' MAIN
    600' x 110' LC
Racine 237.5 1200' x 110' LC
    600' x 110' RC
Robert C. Byrd 279.0 1200' x 110'MAIN
    600' x110' AUX
Greenup 341.0 1200' x 110' RC
    600' x 110' LC
Capt. Anthony Meldahl 436.2 1200' x 110' RC
    600' x 110' LC
Markland 531.5 1200' x 110' RC
    600' x 110' LC
McAlpine 606.8 1200' x 110'MAIN
    600' x110' AUX
Cannelton 720.7 1200' x110' RC
    600' x 110' LC
Newburgh 776.1 1200' x 110'MAIN
    600' x110' AUX
John T. Myers 846.0 1200' x 110'MAIN
    600' x110' AUX
Smithland 918.5 1200' x 110' LC
    1200' x 110' RC
52 938.9 1200' x 110' LC
    600' x 110' RC
53 962.6 600' x 110' LC
    1200' x 110' RC
**Olmstead 964.5 1200' x 110' LC
    1200' x 110' RC
[back to top]
OKEECHOBEE WATERWAY
 (mile 0 -Junction with AICWW at St. Lucie, FL)
Lock
Mile
Size
St. Lucie
15.1
250' x 50'
Port Mayaca
38.8
400' x 56'
Moore Haven
78.0
250' x 50'
Ortona
 93.5 250' x 50'
WP Franklin
 121.4 400' x 56'
[back to top]
OUACHITA RIVER
(mile 0 -Junction of Red with Mississippi River)
Lock
Mile
Size
Jonesville
25
600' x 84'
Columbia
117.0
600' x 84'
Felsenthal
226.9
600' x 84'
H.K. Thatcher
 281.9 600' x 84'
[back to top]
PEARL RIVER
(mile 0 -River Mouth)
Lock
Mile
Size
1
29.4
310' x 65'
2
40.7
310' x 65'
3
43.9
310' x 65'
[back to top]
PORT ALLEN ROUTE TO MORGAN CITY
(mile 0 - Miss. River to Junction of GIWW Mile 95.5 at Morgan City)
Lock
Mile
Size
Port Allen
0.4
1202' x 84'
Bayou Sorrel
27.8
760' x 56
[back to top]
RED RIVER
(J. Bennett Johnson Waterway)
(mile 0 -Junction with Mississippi River)
Lock
Mile
Size
L.C. Boggs
43.8
750' x 84'
J.H. Overton
74.5
750' x 84'
Edwards
116.5
750' x 84'
Russell B. Long
 168.5 750' x 84'
Joe D. Waggoner
 200 750' x 84'
[back to top]
SACRAMENTO DEEP WATER SHIP CHANNEL
 (mile 0 -Mouth at Suisun Bay)
Lock
Mile
Size
William G. Stone
37
640' x 86'
[back to top]
SAINT LAWRENCE RIVER
 (mile 0 -Quebec Bridge)
Lock
Mile
Size
Lambert
153.9
730' x 76'
Cote St. Catherine
162.2
730' x 76'
Beauharnois
182.2
730' x 76'
Melocheville
183.2 730' x 76'
Bertrand H. Snell
 233.5 730' x 76'
Dwight D. Eisenhower
 237.1 730' x 76'
Iroquois
 262.4 730' x 76'
[back to top]
ST. MARYS FALLS CANAL
 (1.9 miles long- located 14 miles below head of St. Marys River)
Lock
Mile
Size
South Canal
MacArthur
800' x 80'
Poe
1200' x 110'
North Canal
   
Davis
   1350' x 80'
Sabin
   1350' x 80'
[back to top]
SAULT STE. MARIE CANAL
 (1.2 miles long- located 14 miles head of St. Marys River)
Lock
Mile
Size
Canadian
852' x 59'
[back to top]
SAVANNAH RIVER
(mile 0 -River Mouth)
Lock
Mile
Size
New Savannah Bluff
162.7
360' x 56'
[back to top]
SHINNECOCK CANAL
(1 mile long - connects Great Peconic Bay and Shinnecock Bay)
Lock
Mile
Size
Shinnecock Canal
0.5
250' x 41'
[back to top]
SNAKE RIVER
 (mile 0 - Junction with Columbia River)
Lock
Mile
Size
Ice Harbor
9.6
650' x 84'
Lower Monumental
31.7
650' x 84'
Little Goose
70.3
650' x 84'
Lower Granite
 107.4 675' x 86'
[back to top]
TENNESSEE RIVER
 (mile 0 -Junction with Ohio River)
Lock
Mile
Size
Kentucky
22.4
600' x 110'
Pickwick Landing
206.7
600' x 110' AUX
1000' x 110' MAIN
Wilson
 259.4 292' x 60' LOWER
  300' x 60' UPPER
  600' x 110' MAIN
General Joe Wheeler
 274.9 600' x 110' MAIN
  400' x 60' AUX
Guntersville 349.0 600' x 110' LC
    360' x 60' RC
Nickajack 424.7 600' x 110'
Chickamauga 471.0 360' x 60'
Watts Bar 529.9 360' x 60'
Fort Loudoun 602.3 360' x 60'
[back to top]
TENNESSEE - TOMBIGBEE WATERWAY
 (mile 0 -Foot Of Government St., Mobile, AL)
Lock
Mile
Size
Gainesville
266.1
600' x 110'
Tom Bevill
306.8
600' x 110'
Columbus
334.7
600' x 110'
Aberdeen
 357.5 600' x 110'
A
 371.1 600' x 110'
B
 376.3 600' x 110'
C
 391.0 600' x 110'
D
 398.4 600' x 110'
E
 406.7 600' x 110'
Bay Springs
 411.9 600' x 110'
[back to top]
VERDIGRIS RIVER
(mile 0 -Junction with Arkansas River)
Lock
Mile
Size
Chouteau
6.4
600' x 110'
Newt Graham
26.6
600' x 110'
Port of Catoosa
50.9
600' x 110'
[back to top]
WARRIOR - TOMBIGBEE SYSTEM
(mile 0 -Foot of Government St., Mobile, AL)
Lock
Mile
Size
Coffeeville
116.6
600' x 110'
Demopolis
213.4
600' x 110'
Armisted I. Seldon
261.1
600' x 110'
Oliver
 338.1 460' x 95'
  600' x 110'
Holt
 347.0 600' x 110'
Bankhead
 365.5 600' x 110'
[back to top]
WELLAND CANAL
 (mile 0 -Pt. Weller Harbor Breakwater)
Lock
Mile
Size
1
0
730' x 80'
2
3.7
730' x 80'
3
6.7
730' x 80'
4
 7.9 730' x 80'
5
 7.9 730' x 80'
6
 7.9 730' x 80'
7
 8.63 730' x 80'
8
 24.0 1148' x 80'
[back to top]
WILLAMETTE RIVER & CANAL
 (mile 0 -River Mouth)
Lock
Mile
Size
Willamette Falls
26.2
210' x 40'
[back to top]
ABBREVIATIONS

AHP - Above Head of Passes
AUX - Secondary lock as back up system, usually smaller than main
EHL - East of Harvey Lock
LC - Landside Chamber
MAIN - Principally used lock, usually commercial traffic
RC - Riverside Chamber
WHL - West of Harvey Lock
* Authorized structures, not yet constructed.
**Under Construction

Dimensions given for lock structures are based on published information. Users should verify usable lock dimensions with lockmasters.