524.4

525.1

525.1 525.3 525.7

COTTONWOOD ISLAND (ISLAND NO. 424) (foot) (partly inun-
dated).

CHICAGO, BURLINGTON & QUINCY RAILROAD BRIDGE
(see p. 235)

Clearances: Horizontal 153.0 feet; available 153.0 feet. Vertical (to
aerial wires) 69.9 feet above pool; 57.9 feet above 1944 high water.
GAGE, QUINCY (see p. 288).
WEST QUINCY, MARION CO., MO., Railroad: C. B. & Q. R. R...
QUINCY BAY (mouth) Quincy Bay provides a winter harbor for Gov-
ernment and private craft..
525.7 QUINCY SAND CO. (see
526.0

P. 16).

QUINCY, COUNTY SEAT OF ADAMS CO., ILL. (40,469). Prin-
cipal industries are foundry products, fiber products, general merchan-
dising, and banking. Railroads: Chicago, Burlington & Quincy;
Quincy, Omaha & Kansas City; Wabash

526.0 QUINCY MEMORIAL HIGHWAY BRIDGE (see p. 234).

526. 2

527.2

527.6

528.0

528.1

528. 2

529.3

Clearances: Horizontal 617.0 feet; available 617.0 feet. Vertical 63.7
feet above pool; 52.2 feet above 1944 high water.
MISSOURI-ILLINOIS GRAIN CO. (see p. 16)
CONSOLIDATED OIL CO. (see p. 16).

CURTIS CREEK.

GAGE, LOCK AND DAM NO. 21 (upper) (see p. 288)

LOCK AND DAM NO. 21 (see p. 190) (for regulations see p. 21). Lock
on left bank, 110' x 600'.

GAGE, LOCK AND DAM NO. 21 (lower) (see p. 288).

WARD ISLAND (ISLAND NO. 430) (head).

530.0 MARK, MARION CO., MO. Railroad: Chicago, Burlington & Quincy. 530.0 FABIUS RIVER (mouth) (enters behind Orton Island).

530.2

530.2

531.3

ORTON ISLAND (ISLAND NO. 429) (foot).
FABIUS ISLAND (ISLAND NO. 431) (head).
WARD ISLAND (ISLAND NO. 430) (foot).

531.7

FABIUS ISLAND (ISLAND NO. 431) (foot).

531.8 NORTH RIVER (mouth).

531.8

531.8

532. 2

532.6

SUBMARINE CABLE CROSSING.

ISLAND NO. 432 (foot).

SOUTH RIVER (mouth).

SUBMARINE PIPE CROSSING

533.8 ISLAND NO. 434 (foot)

MARION CITY, MARION CO., MO. Destroyed by flood of 1851.
Brass tablet marks old site...

MILL CREEK.

BEEBE ISLAND (ISLAND NO. 436) (foot).

HARKNESS CREEK..

511.1

511.1

512.2

512.7

512.7 513.5

Chart No. 22

CANTON CHUTE (upper end) (closing dam near upper end)..
ISLAND NO. 416 (head).

BEAR CREEK DIVERSION CHANNEL (enters Canton Chute
behind Island No. 416).

SMOOT'S CHUTE (upper end) (closing dam near upper end)
LONG ISLAND (ISLAND NO. 418) (head) (partly inundated).
ISLAND NO. 416 (foot).

514.2 ISLAND NO. 419 (head).

514.5 514.6

515. 6

515.8

515.8

515.9

516.2

516.4

517.0

517.0

518.0

518.3

518.7

518.7

520.6

520. 6

520.9

521.4

521. 4

521.5

521.7

522.3

SHANDREW ISLAND (head) (behind Long Island).

CORNER SLOUGH (lower end) (enters Canton Chute behind Shan-
drew Island).

ISLAND NO. 419 (foot).

WYACONDA RIVER (mouth).

SHANDREW ISLAND (foot).

FLANNIGANS ISLAND (head) (partly inundated).

URSA CREEK AND ROCK CREEK (enters Canton Chute).
LA GRANGE ISLAND (ISLAND NO. 420) (head).

LA GRANGE, LEWIS CO., MO. (1,222) Railroad: Chicago, Burling-
ton & Quincy..

GAGE LA GRANGE (see p. 288).

LA GRANGE ISLAND (ISLAND NO. 420) (foot).
OYSTER CREEK.

FLANNIGANS ISLAND (foot) (partly inundated).

SMOOT'S CHUTE (lower end) (enters Canton Chute behind Long
Island).

LONG ISLAND (ISLAND NO. 418) (foot).

WILLOW ISLAND (foot).

TEAL ISLAND (foot) (partly inundated).

HOGBACK ISLAND (ISLAND NO. 422) (foot) (partly inundated).
CANTON CHUTE (lower end).

DURGANS CREEK DIVERSION DITCH.

DEADMAN ISLAND (foot) (partly inundated).

COTTONWOOD ISLAND (ISLAND NO. 424) (head) (partly inun

dated).

1