Jul 23, 2010
Heavy rains during the fourth week of July resulted in the Maquoketa River at Manchester going above the moderate flood stage level of 17 feet on July 23 around 1130 am CDT. It surged past its previous record of 21.66 ft in 2004, cresting around an unprecendented stage of 24.5 feet (preliminary) around 7 pm CDT July 24. It fell below the moderate flood stage level around 1015 am CDT July 25.
Source: NOAA National Weather Service Storm Events Database (event 251376). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Delaware County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.