Iowa Dams

4,124 dams tracked by the National Inventory of Dams

Total Dams

4,124

High Hazard

2.2%

Poor / Unsatisfactory

Average Age

46 yrs

Hazard Classification

High91 (2.2%)

Significant274 (6.6%)

Low3,759 (91.1%)

Condition Assessment

Satisfactory259 (6.3%)

Fair81 (2.0%)

Poor / Unsatisfactory25 (0.6%)

Not Rated3,759 (91.1%)

Federal

State

141

Local

1,938

Private

2,014

Tallest Dams

High Hazard Dams

Poor Condition Dams

All Dams in Iowa

Showing 976–1000 of 4,124

All High Hazard Significant Hazard Low Hazard Poor Fair Satisfactory

Dam Name	Height (ft)	Year	Hazard	Condition
East Fork Grand River Watershed Site A-73 Ringgold County	27	2001	Low	Not Rated
East Fork Grand River Watershed Site A-78 Ringgold County	27	2010	Low	Not Rated
East Fork Grand River Watershed Site A-83 Ringgold County	25	2006	Low	Not Rated
East Fork Grand River Watershed Site A-84 Ringgold County	26	2007	Low	Not Rated
East Fork Grand River Watershed Site A-87 Ringgold County	28	2007	Low	Not Rated
East Fork Grand River Watershed Site A-93 Ringgold County	23	2008	Low	Not Rated
East Fork Grand River Watershed Site A-94 Ringgold County	31	2006	Low	Not Rated
East Fork Grand River Watershed Site A-95 Ringgold County	22	2006	Low	Not Rated
East Fork Grand River Watershed Site A-96 Ringgold County	25	2005	Low	Not Rated
East Fork Grand River Watershed Site B-29 Ringgold County	29	2006	Low	Not Rated
East Fork Grand River Watershed Site B-31a Ringgold County	28	2010	Low	Not Rated
East Fork Grand River Watershed Site B-40 Ringgold County	31	2004	Low	Not Rated
East Fork Grand River Watershed Site B-42 Ringgold County	31	2006	Low	Not Rated
East Fork Grand River Watershed Site B-43 Ringgold County	29	2007	Low	Not Rated
East Fork Grand River Watershed Site B-46 Ringgold County	29	2006	Low	Not Rated
East Fork Grand River Watershed Site B-48 Ringgold County	29	2007	Low	Not Rated
East Fork Grand River Watershed Site B-51 Ringgold County	31	2004	Low	Not Rated
East Fork Grand River Watershed Site B-54 Ringgold County	28	2004	Low	Not Rated
East Fork Grand River Watershed Site B-62 Ringgold County	34	2010	Low	Not Rated
East Fork Grand River Watershed Site B-67 Ringgold County	28	2010	Low	Not Rated
East Fork Grand River Watershed Site B-68 Ringgold County	31	2004	Low	Not Rated
East Fork Grand River Watershed Site B-69 Ringgold County	29	2004	Low	Not Rated
East Fork Grand River Watershed Site B-70 Ringgold County	32	2007	Low	Not Rated
East Fork Grand River Watershed Site D-25 Ringgold County	22	2006	Low	Not Rated
East Fork Grand River Watershed Site D-28 Ringgold County	24	2008	Low	Not Rated

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Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.