524.4 525.1 525.1 525.3 525.7 COTTONWOOD ISLAND (ISLAND NO. 424) (foot) (partly inun- CHICAGO, BURLINGTON & QUINCY RAILROAD BRIDGE Clearances: Horizontal 153.0 feet; available 153.0 feet. Vertical (to WEST QUINCY, MARION CO., MO., Railroad: C. B. & Q. R. R.. 525.7 QUINCY SAND CO. (see p. 16). 526.0 526.0 QUINCY, COUNTY SEAT OF ADAMS CO., ILL. (40,469). Prin- 526. 2 527.2 MISSOURI-ILLINOIS GRAIN CO. (see p. 16). GAGE, LOCK AND DAM NO. 21 (upper) (see p. 288). 528. 1 LOCK AND DAM NO. 21 (see p. 190) (for regulations see p. 21). Lock 324.9 528.2 529.3 GAGE, LOCK AND DAM NO. 21 (lower) (see p. 288). 530.0 MARK, MARION CO., MO. Railroad: Chicago, Burlington & Quincy. 530.0 FABIUS RIVER (mouth) (enters behind Orton Island). MARION CITY, MARION CO., MO. Destroyed by flood of 1851. apolis 511.1 511.1 512.2 512.7 512.7 513. 5 514.2 514.5 514. 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 CANTON CHUTE (upper end) (closing dam near upper end). BEAR CREEK DIVERSION CHANNEL (enters Canton Chute SMOOT'S CHUTE (upper end) (closing dam near upper end). ISLAND NO. 419 (head). SHANDREW ISLAND (head) (behind Long Island). CORNER SLOUGH (lower end) (enters Canton Chute behind Shan- 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, LEWIS CO., MO. (1,222) Railroad: Chicago, Burling- GAGE LA GRANGE (see p. 288) LA GRANGE ISLAND (ISLAND NO. 420) (foot). FLANNIGANS ISLAND (foot) (partly inundated). SMOOT'S CHUTE (lower end) (enters Canton Chute behind Long LONG ISLAND (ISLAND NO. 418) (foot). WILLOW ISLAND (foot). TEAL ISLAND (foot) (partly inundated) HOGBACK ISLAND (ISLAND NO. 422) (foot) (partly inundated). DURGANS CREEK DIVERSION DITCH. DEADMAN ISLAND (foot) (partly inundated). COTTONWOOD ISLAND (ISLAND NO. 424) (head) (partly inun dated). 341.9 341.9 340.8 340.3 340.3 339.5 338.8 338.5 338.4 337.4 337.2 337.2 337.1 336.8 336.6 336.0 336.0 335.0 334.7 334.3 334.3 332.4 332.4 332.1 331.6 331.6 331.5 331.3 330.7 |