344.9 345.5 345.9 345.9 346.2 347.2 347.2 348. 1 348.7 349.7 349.7 349.8 350.0 350.0 350.6 350.9 351.0 351.8 355.3 356.0 356.0 356. 1 356.7 357.0 357.0 357.9 359.6 359.7 359.8 359.9 359.9 360.6 360.6 ADAMS ISLAND (ISLAND NO. 296) (head) (partly inundated). CORDOVA SLOUGH (upper end) (closing dam near upper end) PINNEO CREEK. SUBMARINE CABLE AND PIPE CROSSING CORDOVA, ROCK ISLAND CO., ILL. (364). Railroad: Chicago, WHISKEY RUN. GAGE, PRINCETON (see p. 289). PRINCETON, SCOTT CO., IOWA (414). Railrcads: Chicago, Mil- BUD CREEK. PORT BYRON, ROCK ISLAND CO., ILL. (861). Railroad: Chicago, LE CLAIRE, SCOTT CO., IOWA (881). Railroads: Chicago, Mil- GAGE, LE CLAIRE (see p. 289). BARBER CREEK RAPIDS CITY, ROCK ISLAND CO., ILL. (275). Railroad: Chicago, LE CLAIRE CANAL (upper end). LE CLAIRE CANAL DAM (upper end) (longitudinal dam) (partly SYCAMORE CREEK. GAGE, LOCK AND DAM NO. 14 (upper) (see p. 289). LOCK AND DAM NO. 14 (see p. 197) (for regulations see p. 21). Locks on GAGE, LOCK AND DAM NO. 14 (lower) (see p. 289). LE CLAIRE LOCK. Lock 80' x 320′ clear. Now used as auxiliary lock for SMITH ISLAND (ISLAND NO. 302) (foot). (Is lower end of Le Claire SPENCER CREEK. PLEASANT VALLEY, SCOTT CO., IOWA (775). Railroads: Chi- GAGE, LOCK AND DAM NO. 13 (upper) (see p. 289) L 522.6 330.5 LOCK AND DAM NO. 13 (see p. 198) (for regulations see p. 21). Lock on 522. 5 Clearances: Horizontal, 353.0 feet; available, 353.0 feet. Vertical, 70.0 332.9 332.9 333. 1 334. 2 334.8 335.0 335. 1 335.1 335.5 335.5 335.6 335.7 336.1 337.1 337. 1 337.2 338.7 338.7 338.8 SMITH OIL & REFINING CO. TERMINAL (see p. 18). Chicago & North Western; Chicago, Burlington & Quincy; and Chi- ISLAND NO. 288 (head). ISLAND NO. 289 (foot) CLINTON, COUNTY SEAT OF CLINTON CO., IOWA (26,270). Clearances: Horizontal, 384.0 feet; available, 202.5 feet. Vertical, LITTLE ROCK ISLAND (ISLAND NO. 290) (foot). BEAVER SLOUGH (upper end). (Navigable channel to manufactur- BEAVER ISLAND (ISLAND NO. 291) (head) MUNICIPAL BARGE TERMINAL (in Beaver Slough) (operated by CONTINENTAL GRAIN CO. ELEVATOR (see p. 17). CAT TAIL CREEK. CEDAR CREEK. SPRING CREEK. MILL CREEK (enters Beaver Slough). INTERSTATE POWER CO. DOCK (in Beaver Slough) (see p. 17) 339.5 AERIAL CABLE CROSSING (see p. 285) 339.5 340.0 340.1 340. 2 340.4 341. 1 341.2 341.3 Clearances: 72.0 feet above pool; 59.4 feet above 1880 high water. ALBANY, WHITESIDE CÓ., ILL. (492). Railroad: Chicago, Milwaukee, St. Paul & Pacific.. ISLAND NO. 292 (foot) BEAVER ISLAND (ISLAND NO. 291) (foot). BEAVER SLOUGH (lower end). MARAIS D'OSIER SLOUGH (upper end) CAMANCHE, CLINTON CO., IOWA (814). Railroads: Chicago, MARAIS D'OSIER (enters Slough behind Island No. 294). 315.2 SAVANNA HIGHWAY BRIDGE (see p. 250). 315.7 316.0 316. 1 316.3 316.6 317 1 317.3 317.7 318.0 318.0 318.6 319.6 319.9 319.9 319.9 320. 1 320.3 320.3 321.4 321.4 323. 2 323.9 324.7 325. 2 325.3 325.3 325.3 326.3 326. 3 328. 0 328.3 328.9 328.9 329.0 329.6 Vertical (mid Clearances: Horizontal 508.0 feet; available 508.0 feet. PLUM RIVER (mouth) SAVANNA ISLAND (ISLAND NO. 268) (head) (partly inundated). ISLAND NO. 267 (foot) (partly inundated). KELLERS ISLAND (ISLAND NO. 264) (partly inundated). SABULA, JACKSON CO., IOWA (771). Railroad: Chicago, Milwau- CHICAGO MILWAUKEE, ST. PAUL & PACIFIC RAILROAD Clearances: Horizontal 159.5 feet; available 159.5 feet. Vertical (to ISLAND NO. 269 (head) (partly inundated). DARK SLOUGH (upper end) (closing dam near upper end). SAVANNA ISLAND (ISLAND NO. 268) (foot) (partly inundated). ISLAND NO. 271 (foot) (now inundated). ISLAND NO. 274 (foot) (partly inundated) DARK SLOUGH (lower end) ISLAND NO. 277 (foot) (now inundated) ELK RIVER SLOUGH (upper end) (closing dam near upper end) (now ISLAND NO. 278 (foot) (now inundated) ISLAND NO. 279 (foot) (now inundated). ELK RIVER (mouth). ISLAND NO. 281 (head). ELK RIVER JUNCTION, CLINTON CO., IOWA. Railroad: Chi- ISLAND NO. 282 (foot) (now inundated) ELK RIVER SLOUGH (lower end) (now within pool). ISLAND NO. 283 (foot) (now inundated)_ IOWA SLOUGH (upper end) (closing dam near upper end) (now within ISLAND NO. 284 (foot) (now inundated) |