Bridge conditions in Deuel County, South Dakota
72 inventoried bridges · 13 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
About one in 6 bridges in Deuel County is rated in poor condition: 13 of 72 on the federal inventory, one of the higher shares in South Dakota.
- 13 of the 72 bridges in Deuel County, South Dakota, are rated in poor condition (18.1%) in the 2025 National Bridge Inventory, as of .
- 16 bridges (22.2%) are rated good and 43 (59.7%) fair.
- The median Deuel County bridge was built in 1971.
- The busiest poor-rated bridge is SD022 over Ck (built 1959), carrying about 1,559 vehicles a day.
Good 22.2% · Fair 59.7% · Poor 18.1% of 72 bridges
Bridges rated poor
Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SD022 over Ck | 1959 | 1,559 | Poor |
| 188 Street over Ck | 1930 | 381 | Poor |
| 188 Street over Hidewood Ck | 1978 | 90 | Poor |
| Parle St (gary) over W Br Lac Qui Parle River | 1950 | 50 | Poor |
| 2ND Ave (gary) over W Br Lac Qui Parle River | 1930 | 50 | Poor |
| Twnshp Rd 186TH St over Cobb Ck | 1950 | 45 | Poor |
| Twnshp Rd 185TH St over Ck | 1970 | 35 | Poor |
| 472 Avenue over Ck | 1950 | 25 | Poor |
| Twnshp Rd 480 Av over Mud Creek | 1950 | 25 | Poor |
| Twnshp Rd 187TH St over Cobb Ck | 1908 | 25 | Poor |
| Twnshp Rd 483RD Av over Ck | 1930 | 25 | Poor |
| Twnshp Rd 184TH St over Cobb Ck | 1960 | 15 | Poor |
| Twnshp Rd 484TH Av over Cobb Ck | 1945 | 10 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I029 over Deer Ck | 1971 | 7,560 | Fair |
| I029 S over 471 Ave | 1973 | 4,870 | Fair |
| I029 N over 471 Ave | 1973 | 4,870 | Fair |
| I029 S over Peg Munky Run Ck | 1973 | 4,870 | Fair |
| I029 N over Peg Munky Run Ck | 1973 | 4,870 | Fair |
| I029 S over 184 St | 1973 | 4,830 | Fair |
| I029 N over 184 St | 1973 | 4,830 | Fair |
| I029 S over 186A St Hidewood Ck | 1973 | 4,830 | Fair |
| I029 N over 186A St Hidewood Ck | 1973 | 4,830 | Fair |
| I029 S over 469 Ave (fasc 6373) | 1973 | 4,830 | Fair |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of South Dakota: South Dakota bridge conditions by county · every download on the data page.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.