Item No.
Requirement
Compilation
30
Reliability of the source or sources of data.
Completely reliable.
31
Accuracy of data.
Probably true.
32
Agency or unit preparing the compilation.
Military Hydrology Branch, Washington Dis-
trict CE.
33
Inclose pictures, maps and drawings depicting the
Location map and sections of Ohio River Local
location and other features of the major item.
Protection Project, Huntington, W Va. (fig.
34
Date compilation was prepared.
18 Nov. 1953.
22. Navigation Locks. Pickwick Landing.
Item No.
Requirement
Compilation
1
Name of lock.
Pickwick Landing Lock.
2
Country or countries, state or province, and so on, in
US Tenn.
which the major item is located.
3
Main river basin in which the subject is located.
Ohio-Mississippi.
4
River or canal on which lock is located.
Tennessee River.
5
Name of dam connected with lock.
Pickwick Landing Dam (fig. 12).
6
Distance and direction from a city or some other
100 air mi east of Memphis, Tenn; 23.5 mi by
definite geographic reference point.
highway from Southern Railway, Mobile &
Ohio RR, and Illinois Central RR at Corinth,
Miss; 35 mi by highway from Mobile & Ohio
RR, at Selmer, Tenn; 20 mi by highway
from Southern Railway at luka, Miss.
7
Distance from lock to river mouth or some other
206.7 mi.
stream-reference point.
8
Latitude and longitude of the major item.
354'N, 8815'W.
9
Coordinates of any local grid-coordinate system.
NI.
10
Date lock was completed.
March 1938.
11
Material of which lock chamber is constructed or
Standard Ohio River concrete gravity type
lined.
as developed by U. S. Army CE.
12
Inside dimensions of lock chamber.
110 ft by 600 ft. (fig. 25).
13
Give the maximum, normal, and minimum expected
Maximum: 63 ft; normal: 56 ft; minimum:
lift values. (Lift is the vertical distance the vessels
NI.
are raised or lowered in the lock chamber.)
14
Give the minimum depth over upper and lower sills.
Upper: 10 ft; lower: 12 ft.
15
Indicate whether elevations are based on mean sea
Feet above mean sea level, 1929 General Ad-
level or on some other reference.
justment Datum.
16
Give elevations for:
a. Upper sill.
a. 398.0 ft.
b. Lower sill.
b. 342.2 ft.
c. Top of chamber wall.
c. 422.0 ft.
d. Top of gates.
d. 422.0 ft.
e. Top of upper guide or approach-channel walls.
e. 422.0 ft.
f. Top of lower guide or approach-channel walls.
f. 388.7 ft.
17
Type and size of lock gates and material of which
Double-leaf, hydraulically operated, steel miter
they are made. (Indicate whether gates are single-
gates (fig. 25).
leaf, double-leaf miter, and so on.)
a. Upstream gates: width: 61 ft 5 3/8 in.,
center quoin seal to center miter seal;
height: 27 ft 9 5/8 in., overall; depth: 4 ft
1/4 in., back to back of angles.
b. Downstream gates: width: 61 ft 5 3/8
in., center quoin seal to center miter seal;
height: 77 ft 4 1/2 in., overall; depth: 7 ft
1/2 in., back to back of angles.
18
Type, size, and construction material of any auxiliary
Upper emergency dam: Type: Demountable
lock gates.
structural steel gates supported on 10 col-
lapsible A-frame steel bents anchored on
foundation on upper miter sill. Operated
by: 2 structural steel derricks, 1 on each
wall, 22.5 ft mast of latticed channel box.
Boom and back leg latticed angle struts.
AGO 3898A
38
