Mississippi River Gage Sheet
Location / Description River Mile Gage Zero Gage at LOL
(Flat Pool)
LOL Elev.
(Flat Pool)
Lock 10, Tail (downstream side) 615.1 600.0 3.0 603.0
Cassville, Left Bank, Dairyland Power, staff + wire weight 606.7 596.3 6.7 603.0
Waupeton, Right Bank, staff at bridge 599.9 593.3 9.7 603.0
Specht's Ferry, Right Bank, staff on rock wall 592.3 590.6 12.4 603.0
Lock 11, Pool (upstream side) 583.0 588.2 14.8 603.0
Lock 11, Tail (downstream side) 583.0 588.2 3.8 592.0
Dubuque, Right Bank, staff + satellite at RR Bridge 579.9 585.4 6.6 592.0
Nitaho Valley, Right Bank, staff at ramp & bridge 567.1 581.8 10.2 592.0
Gordon's Ferry, Right Bank, staff at RR Bridge 566.2 582.1 9.9 592.0
Lock 12, Pool (upstream side) 556.7 580.2 11.8 592.0
Lock 12, Tail (downstream side) 556.7 580.2 2.8 583.0
Pleasant Creek, Right Bank, staff on sheet piling upstream of ramp 553.0 579.1 3.9 583.0
Densmore Intake, Right Bank, staff (direct read) 547.3 0.0 583.0 583.0
Savanna Bay, Left Bank, "X" corner of concrete of sign at ramp = 589.83 541.0 0.0 583.0 583.0
Sabula, Right Bank, staff at RR Bridge (channel 13) 535.0 572.3 10.7 583.0
Lock 13, Pool (upstream side) 522.5 568.7 14.3 583.0
Lock 13, Tail (downstream side) 522.5 568.7 3.3 572.0
Clinton, Right Bank, RR Bridge, staff downstream of pivot 518.0 566.3 5.7 572.0
Comanche, Right Bank, staff + tape inside satellite shed foot 8th Ave. 511.8 563.2 8.8 572.0
Princeton, Right Bank, staff 502.1 563.5 8.5 572.0
LeClaire, Right Bank, in shed 400 ft downstream of museum 497.0 563.2 8.8 572.0
Lock 14, Pool (upstream side) 493.3 557.1 14.9 572.0
Lock 14, Tail (downstream side) 493.3 447.1 3.9 561.0
Bettendorf, Right Bank, Phillip's oil dock, staff at cell 487.2 551.4 9.6 561.0
Lock 15, Pool (upstream side) 482.9 542.5 18.5 561.0
Lock 15, Tail (downstream side) 482.9 542.5 2.5 545.0
Sunset Marina, Left Bank, wire weight at hoist 479.7 534.1 10.9 545.0
Linwood, Right Bank, staff at Amoco dock 475.5 534.2 10.8 545.0
Eastern Iowa Power, Right Bank, staff at intake 468.0 540.0 5.0 545.0
Fairport, Right Bank, in pump house at hatchery (call lock 16) 463.5 535.2 9.8 545.0
Lock 16, Pool (upstream side) 457.2 533.8 11.4 545.0
Lock 16, Tail (downstream side) 457.2 533.8 2.4 536.0
Muscatine, Right Bank, tape at power plant (call lock 16) 453.1 530.7 5.3 536.0
Farmland Dock, Right Bank, staff at dock 450.2 528.2 7.8 536.0
Lock 17, Pool (upstream side) 437.1 526.6 9.3 536.0
Lock 17, Tail (downstream side) 437.1 526.6 1.3 528.0
Keithsburg, Left Bank, staff + wire weight at grain elevator 427.7 523.2 4.8 528.0
Oquawka, Left Bank, staff at downstream end Marina 415.2 513.2 14.8 528.0
Lock 18, Pool (upstream side) 410.5 518.5 9.5 528.0
Lock 18, Tail (downstream side) 410.5 518.5 -0.3 518.2
Burlington, Right Bank, RR Bridge staff + satellite in shed on bank 403.1 511.4 6.8 518.2
I S U Power, Right Bank, staff at intake 399.0 498.2 20.0 518.2
Ft Madison, Right Bank, RR Bridge staff + satellite in shed on bank 383.9 518.2 0.0 518.2
Ft Madison, Right Bank, harbor, top of wall at ramp = 522.79 383.8 500.0 18.2 518.2
Lock 19, Pool (upstream side) 364.3 518.2 0.0 518.2
Lock 19, Tail (downstream side) 364.3 477.8 2.2 480.0
Warsaw, Left Bank, staff on sheet pile upstream of elevator 359.9 472.9 5.8 478.7
Gregory, Right Bank, tape + satellite in shed at elevator 352.9 472.7 5.5 478.2
Lock 20, Pool (upstream side) 343.2 468.5 7.0 475.5
Lock 20, Tail (downstream side) 343.2 468.5 1.5 470.0
LaGrange, Right Bank, staff on cell + wire weight at elevator 336.0 464.6 5.4 470.0
Quincy, Left Bank, staff + satellite at water plant 327.0 458.6 11.4 470.0
Lock 21, Pool (upstream side) 324.9 457.8 12.2 470.0
Lock 21, Tail (downstream side) 324.9 457.8 1.7 459.5
N E Mo Power, Right Bank, staff at intake 320.0 454.6 4.9 459.5
Hannibal, Right Bank, staff at RR Bridge, satellite in bldg upstream harbor 309.8 449.5 10.0 459.5
Lock 22, Pool (upstream side) 301.2 446.1 13.4 459.5
Lock 22, Tail (downstream side) 301.2 446.1 2.9 449.0