ILLINOIS RIVER GAGE SHEET
Location / description river mile flat pool
T.J. O'Brien Lock, Pool (upstream side) 326.5 Lake Level
T.J. O'Brien Lock, Tail (downstream side) 326.4 577.5
Lockport Lock, Pool (upstream side) 291.1 577.5
Lockport Lock, Tail (downstream side) 290.9 538.5
Brandon Road Lock, Pool (upstream side) 286.0 538.5
Brandon Road Lock, Tail (downstream side) 285.9 504.5
Hunting Lodge Bend, Right Bank, staff 281.2 504.5
I-55 HWY Bridge, staff on bridge pier 277.9 504.5
Dresden Lock, Pool (upstream side) 271.5 504.5
Dresden Lock, Tail (downstream side) 271.4 482.8
Morris, Right Bank, staff on bridge pier 263.4 482.8
Grist Island, Right Bank, staff, top of wall = 437.24 258.8 482.8
Seneca, staff on bridge pier 252.8 482.8
Kickapoo, Right Bank, staff on cell 249.9 482.8
Marseilles Dam, (upstream side) 247.0 482.8
Marseilles Lock, Pool (upstream side) 244.5 482.8
Marseilles Lock, Tail (downstream side) 244.4 458.5
ADM Elevator, Right Bank, bolt on upstream cell elvation = 461.7 241.9 458.5
Ottawa, Left Bank, staff on bridge pier reads .2 high? 218.4 440.1
Starved Rock Lock, Pool (upstream side) 231.1 458.5
Starved Rock Lock, Tail (downstream side) 230.9 440.3
La Salle, Right Bank, staff at Tabor Harbor, gage zero = 430 223.3 440.2
Spring Valley, Right Bank, staff on bridge pier reads .2 high? 218.4 440.1
Illinois Power Plant, Left Bank, staff on downstream side of building 212.0 440.1
Hennepin, Left Bank, staff on cell at elevator 207.5 440.1
Henry, Right Bank, staff at old lock 196.1 440.0
Lacon, metal pipe 189.1 440.0
Chilicothe, Right Bank, staff on cell at elevator 180.3 440.0
Corps Peoria Boat Yard, Right Bank staff on sheet piling 164.2 440.0
Peoria Lock, Pool (upstream side) 157.7 440.0
Peoria Lock, Tail (downstream side) 157.7 430.0
Pekin, Left Bank, staff on bridge pier 152.9 429.9
CFI Harbor, Right Bank, bolt on cell elevation = 444.46 146.7 429.7
Kingston Mines, Right Bank, staff + satellite at terminal 145.5 429.7
Copperas, Right Bank, staff + satellite at old lock 136.8 429.5
East Liverpool, Right Bank, top of I-beam elev. = 432.98 at pump station dwst end 131.6 429.5
Liverpool, Right Bank, staff at terminal 127.1 429.4
Quiver Island, Left Bank, staff on sheet piling at coal dock 120.8 429.2
Havana, Left Bank, staff on bridge pier + staff at conservation ramp 119.6 429.2
Havana Power Plant, Left Bank, staff on cell 118.5 429.2
Anderson Lake, Right Bank, staff at outfall 108.4 429.1
Browning, Right Bank, staff 97.2 429.0
Beardstown, Left Bank, staff on piling Logsdon Tug + Satellite in shed (9.1 = flat) 88.5 429.0
LaGrange Lock, Pool (upstream side) 80.2 429.0
LaGrange Lock, Tail (downstream side) 80.2 419.6