IOWA RIVER & CORALVILLE DAM INFORMATION

Iowa River basin map

Lake and stream information, updated hourly

• What the Corps learned from the 1993 flooding

• A brief guide to reading lake and stream data

• Iowa reservoirs:
  

  Description |  Current  |Weather |Archival
              |   Data    | Data   | Data
  ------------+-----------+--------+--------
  Coralville   raw | graph  weather  daily
  Saylorville  raw | graph  weather  daily
  Red Rock     raw | graph  weather  daily
  

  Coralville lake levels: 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 00 | 01 | 02 | 03 | 04

• Iowa River basin gages (in downhill order):
  

        Gage Description      | Current  | Iowa City | Flood | Outflow | Archival
   D = damage vs. stage       |  data    | Flow Time | Stage | Trigger |   Data
  ----------------------------+----------+-----------+-------+-------------------
  Iowa R. near Rowan        D  raw | graph  -7 day     --      --         daily
  Iowa R. near Marshalltown D  raw | graph  -4 day     13 ft   --         daily
  Iowa R. near Marengo      D  raw | graph  -1.5 day   14.0    --         daily
  Coralville Res. tailwater D  raw | graph  -5 hour    --      --         daily
  Rapid Ck. near Iowa City  D  raw | graph  -5 hour    --      10 ft a    daily
  Clear Ck. near Oxford     -  --- | graph  -20 hour   --      13    a    --
  Clear Ck. near Coralville D  raw | graph  -2 hour    10.8    10.0  a    daily
  Iowa R. near Iowa City    D  raw | graph   0         22.0    22.0  a    daily
  English R. near Kalona    D  raw | graph  --         14.0    --         daily
  Iowa R. near Lone Tree    D  raw | graph  +0.5 day   15.0    14/16*b    daily
  Iowa R. near Wapello      D  raw | graph  +1.5 day   20.0    21/22 b    daily
  Miss. R. near Burlington  D  raw | graph  +3 day     15.0    18.0  b    daily
  

• Corps of Engineers forecasts:
  
  • Coralville Reservoir

Current weather information

• CNN forecast
• Local media forecasts: KGAN | KWWL | KCRG
• Live radar from KGAN: small image | large format | 30 minute loop
• NEXRAD radar images from Intellicast (updated hourly)

  Radar Loop         Midwest (Des Moines)  USA
  Composite          Midwest (Des Moines)  USA
  Summary	           Midwest (Des Moines)  USA
  Precipitation      Midwest (Des Moines)  USA
  Jet stream                               USA
  

Other links of interest

Agency home pages (sources for the hot links given above)

• Rock Island District of the Corps of Engineers
• Iowa division of the U.S. Geological Survey
• National Weather Service

General information

National

• Hydrology resources on the Web
• Lycos City Guide
• Open Text
• Inktomi
• Webcrawler
• Infoseek

Iowa

• Iowa Counties Web Site
• Wilton High School
• INS Iowa Links
• Iowa City/Coralville (maintained by the University of Iowa)
• Iowa City/Coralville (maintained by Jeonet)
• Grant Wood Area Educational Agency
• Iowa City Community School District (look under staff resources)