| 20.5 | Flood water hits the highest point of the bottom of the bridge at the gage site. | | 20.0 | Water is at the top of the levee protecting the wastewater treatment plant. The power plant area is affected by high water with extensive flooding of rural areas. Homes are flooded and some county and state roads are closed. Flood water may stop rail traffic. A record flood is in progress at this stage. There is extensive flooding or northern parts of Bluffton. The commercial area in northwest Bluffton along SR 1 is affected by flood water. Some evacutations are necessary. | | 18.0 | Water approaches the power plant. Rural residences along Elm Road begin to flood and the railroad is threatened. A major flood is in progress. Commercial and municipal property along SR 1 begins to flood. Evacuations are necessary in northern parts of Bluffton. Water is at a critical level on the levee protecting the wastewater treatment plant. | | 16.0 | The outlying portion of West Washington Street becomes impassible and SR 116 west of Bluffton begins to flood. | | 14.0 | Flooding begins to affect residential areas in northern Bluffton. Low areas near the wastewater treatment plant begin to flood. Portions of Elm Grove Road and County Road 450 begin to flood. | | 13.0 | Access road to Bluffton wastewater treatment plant is flooded. | | 12.0 | River Road and a few county roads are closed by high water. | | 11.0 | River Road at Bluffton begins to flood. | | 10.0 | The river is at flood stage. Flooding of agricultural land begins. |
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1) 21.00 ft on 03/25/1913
2) 18.30 ft on 07/09/2003
3) 16.80 ft on 01/14/2005
4) 16.70 ft on 03/01/1904
5) 16.20 ft on 02/25/1985
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1) 0.90 ft on 10/15/1957
2) 1.12 ft on 10/03/2008
3) 1.13 ft on 10/31/2008
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