Dam Safety by State
| State | Total | High Hazard | Significant | Poor/Unsat. | Avg Age |
|---|
| 2,856 | 1062 | 634 | 475 | 82 yrs |
| Alabama | 2,252 | 216 | 443 | 6 | 59 yrs |
| Alaska | 105 | 29 | 41 | 11 | 56 yrs |
| Arizona | 375 | 159 | 38 | 44 | 71 yrs |
| Arkansas | 1,257 | 190 | 231 | 69 | 62 yrs |
| California | 400 | 210 | 49 | 23 | 84 yrs |
| Colorado | 1,958 | 451 | 294 | 119 | 84 yrs |
| Connecticut | 1,225 | 233 | 937 | 126 | 114 yrs |
| Delaware | 83 | 57 | 9 | 4 | 88 yrs |
| Florida | 1,074 | 99 | 335 | 21 | 56 yrs |
| Georgia | 5,361 | 521 | 11 | 230 | 62 yrs |
| Guam | 1 | 1 | 0 | 0 | 76 yrs |
| Hawaii | 4 | 3 | 0 | 3 | 91 yrs |
| Idaho | 394 | 96 | 141 | 41 | 76 yrs |
| Illinois | 1,630 | 250 | 361 | 6 | 60 yrs |
| Indiana | 1,084 | 276 | 319 | 517 | 65 yrs |
| Iowa | 4,124 | 91 | 274 | 25 | 45 yrs |
| Kansas | 6,471 | 323 | 176 | 120 | 56 yrs |
| Kentucky | 1,065 | 269 | 148 | 279 | 60 yrs |
| Louisiana | 748 | 42 | 72 | 109 | 54 yrs |
| Maine | 580 | 75 | 77 | 81 | 111 yrs |
| Maryland | 425 | 107 | 136 | 92 | 60 yrs |
| Massachusetts | 1,291 | 318 | 616 | 336 | 112 yrs |
| Michigan | 1,019 | 146 | 149 | 94 | 81 yrs |
| Minnesota | 1,122 | 44 | 123 | 80 | 60 yrs |
| Mississippi | 6,089 | 348 | 67 | 273 | 48 yrs |
| Missouri | 5,380 | 1475 | 184 | 49 | 50 yrs |
| Montana | 2,986 | 190 | 192 | 132 | 74 yrs |
| Nebraska | 2,954 | 155 | 215 | 812 | 51 yrs |
| Nevada | 507 | 160 | 84 | 150 | 44 yrs |
| New Hampshire | 664 | 162 | 185 | 152 | 99 yrs |
| New Jersey | 829 | 232 | 332 | 233 | 95 yrs |
| New Mexico | 411 | 219 | 53 | 210 | 65 yrs |
| New York | 198 | 80 | 37 | 19 | 99 yrs |
| North Carolina | 3,622 | 1637 | 648 | 379 | 65 yrs |
| North Dakota | 948 | 54 | 63 | 35 | 58 yrs |
| Ohio | 1,377 | 397 | 564 | 509 | 64 yrs |
| Oklahoma | 4,981 | 420 | 207 | 59 | 60 yrs |
| Oregon | 857 | 149 | 169 | 46 | 67 yrs |
| Pennsylvania | 1,480 | 780 | 308 | 215 | 80 yrs |
| Puerto Rico | 36 | 36 | 0 | 12 | 73 yrs |
| Rhode Island | 234 | 95 | 81 | 126 | 127 yrs |
| South Carolina | 2,400 | 644 | 240 | 1120 | 68 yrs |
| South Dakota | 2,541 | 85 | 149 | 34 | 67 yrs |
| Tennessee | 1,203 | 250 | 347 | 14 | 56 yrs |
| Texas | 7,398 | 1603 | 558 | 257 | 61 yrs |
| Utah | 858 | 269 | 322 | 15 | 65 yrs |
| Vermont | 362 | 67 | 131 | 104 | 90 yrs |
| Virginia | 2,701 | 433 | 183 | 124 | 76 yrs |
| Washington | 817 | 405 | 98 | 68 | 55 yrs |
| West Virginia | 490 | 375 | 70 | 57 | 60 yrs |
| Wisconsin | 961 | 178 | 84 | 63 | 89 yrs |
| Wyoming | 1,490 | 99 | 104 | 576 | 62 yrs |