The Iowa Watershed Approach Antonio Arenas Assistant Research - PowerPoint PPT Presentation

A vision for a more resilient Iowa The Iowa Watershed Approach Antonio Arenas Assistant Research Engineer, Iowa Flood Center Antonio-arenasamado@uiowa.edu Ashlee Johannes IWA Flood Resilience Coordinator Ashlee-johannes@uiowa.edu 1

A vision for a more resilient Iowa The Iowa Watershed Approach 2

A vision for a more resilient Iowa A vision for a more resilient Iowa The Iowa Watershed Approach The Iowa Watershed Approach Kickoff meeting follow-up Highlights of Flood Resilience Survey Results WHEN ASKED ON THE SURVEY… Indicate your level of agreement with the statement: “My community is flood resilient.” Responses varied between feeling pretty resilient and not resilient In your experience, where in your community is flooding likely to occur? • City of Independence • Smaller communities with less available money • Neighborhoods with low resiliency Who else do you think should be involved in the IWA project or in resilience activities who were not present at this meeting? • Ag groups • County engineers 3

A vision for a more resilient Iowa A vision for a more resilient Iowa The Iowa Watershed Approach The Iowa Watershed Approach 4

A vision for a more resilient Iowa The Iowa Watershed Approach Kickoff meeting follow-up 5

A vision for a more resilient Iowa The Iowa Watershed Approach Average annual precipitation. Kickoff meeting follow-up Estimates are based on the 30-year annual average (1981-2010). 7

A vision for a more resilient Iowa The Iowa Watershed Approach (Data source: http://www.prism.oregonstate.edu/) 8

A vision for a more resilient Iowa The Iowa Watershed Approach Source: Sanford, Ward E., and David L. Selnick. "Estimation of evapotranspiration across the conterminous United States using a regression with climate and land ‐ cover Data1." JAWRA Journal of the American Water Resources Association 49.1 (2013): 217-230. 9

A vision for a more resilient Iowa The Iowa Watershed Approach 60 Upper Wapsipinicon 50 40 Rain (inches) 30 20 10 0 1934 1942 1950 1958 1966 1974 1982 1990 1998 2006 2014 10

A vision for a more resilient Iowa The Iowa Watershed Approach 0.7 Anamosa 0.6 Streamflow / Rain (-) Independence 0.5 0.4 0.3 0.2 0.1 0.0 1926 1936 1946 1956 1966 1976 1986 1996 2006 2016 11

A vision for a more resilient Iowa The Iowa Watershed Approach 0.8 Anamosa Baseflow / Streamflow (-) Independence 0.7 0.6 0.5 1926 1936 1946 1956 1966 1976 1986 1996 2006 2016 12

A vision for a more resilient Iowa The Iowa Watershed Approach Historic Crests Near Tripoli (15) At Independence (15) At Anamosa (21.5) 18.50 ft on 07/21/1999 22.35 ft on 05/18/1999 26.18 ft on 06/13/2008 18.24 ft on 06/09/2008 21.11 ft on 07/18/1968 23.71 ft on 07/26/2010 17.26 ft on 07/01/1969 20.30 ft on 08/26/1990 22.90 ft on 07/21/1968 17.22 ft on 09/23/2016 19.36 ft on 09/25/2016 22.76 ft on 09/27/2016 15.97 ft on 05/23/2004 18.86 ft on 06/11/2008 22.73 ft on 05/26/2004 13

A vision for a more resilient Iowa The Iowa Watershed Approach 14

A vision for a more resilient Iowa The Iowa Watershed Approach 15

A vision for a more resilient Iowa The Iowa Watershed Approach 16

A vision for a more resilient Iowa The Iowa Watershed Approach 17

A vision for a more resilient Iowa The Iowa Watershed Approach Iowa Flood Center The University of Iowa 100 C. Maxwell Stanley Hydraulics Laboratory Iowa City, IA 52242 319-384-1729 www.iowafloodcenter.org 23

A vision for a more resilient Iowa The Iowa Watershed Approach Kickoff meeting follow-up 24