| 34.0 | This is the top of the Hannibal Floodwall. | | 31.8 | This is the RECORD FLOOD LEVEL that was reached on July 15 1993. | | 28.6 | This is the flood level that was reached on April 25 1973. | | 28.2 | The Fabius River levee (Right Bank) is overtopped between River Mile 332.4 and 323.5, flooding 14,200 acres. The Marion County levee is overtopped between River Mile 320.7 and 323.5, flooding 4000 acres. | | 28.0 | The elevated boat club, outside the levee, floods. | | 27.9 | Highway 168 NW of Hannibal near Clear Creek is closed. | | 27.8 | The Sny Island and South Quincy levees are overtopped between River Mile 315.4 and 264.3, flooding 110,000 acres. The South River levee is overtopped between River Mile 320.5 and 312.1, flooding 10,000 acres. | | 27.6 | Near this height, Warren Barrett Drive is closed east of Lemon Street. | | 27.5 | The South Quincy Levee (Left Bank) is overtopped between river miles 325.4 and 317.8, flooding 5500 acres. | | 27.0 | A few small bussinesses along the riverfront outside of the floodwall, along Bear Creek and along the minnow branch of Bear Creek are either cut-off or inundated. A large portion of downtown Hannibal is cut-off. | | 26.2 | The Sny Island Drainage District Levee is overtopped. | | 25.8 | State Highway 79 closes south of Hannibal near Ilasco. | | 24.6 | Highway 79 south of Hannibal is closed at the cement plant. | | 24.5 | Sawyers Family Fun Park south of Hannibal typically closes near this level as parking access to the park is cut off. | | 24.1 | Highway 79 begins flooding south of Hannibal. | | 24.0 | The Admiral Coontz Recreation Center, formerly the old armory, on Collier Street floods. Numerous businesses in southwest Hannibal outside the flood wall begin to flood. | | 23.0 | Area south of Collier Street and along Sycamore Street outside the Hannibal flood wall floods. | | 22.5 | The Norfolk Southern Railroad tracks running east and west flood. | | 22.0 | BNSF tracks just south of Hannibal are flooded. | | 21.5 | At this height, water will reach the base of the remaining three flood gates on Broadway Avenue and Main Street, so these gates should already be installed and locked down. | | 20.5 | The Burlington Northern/Sante Fe railroad tracks running North and South and the railroad yards begin to flood. At this height, water reaches the base of the two flood gates at Hill Street and Center Steet, so these gates should already be installed and locked down. Also at this level, preparations are made to install the remaining 3 flood gates on Broadway Avenue and Main Street if the forecast reaches 21.5 feet. | | 20.2 | Nipper Park begins flooding on the Hannibal riverfront. | | 19.0 | The Corps of Engineers begins flood fight proceedures. At this level, preparations are made to install two flood gates at Hill Street and Center Street if the forecast exceeds 20.5 feet. | | 18.0 | Gate wells are shut down to prevent the sewers from backing up. Also at this level pumps are set to standby. | | 17.0 | John Hay Recreation Area on east side (inside the Illinois Sny Levee) begins flooding. | | 16.0 | Flood Stage. Damage begins to buildings in unprotected low areas. Minor flooding begins. | | 13.0 | A few unprotected low lands begin to flood. |
|
1) 31.80 ft on 07/15/1993
2) 29.54 ft on 06/18/2008
3) 28.59 ft on 04/25/1973
4) 26.91 ft on 05/16/2001
5) 25.30 ft on 10/04/1986
6) 24.59 ft on 05/01/1965
7) 24.41 ft on 05/29/1996
8) 23.90 ft on 04/05/1983
9) 23.48 ft on 04/15/1998
10) 23.40 ft on 04/04/1960
|
Low water records are unavailable.
|
|
