Moody County Bridge Report Card
Moody County scores 41 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Moody County, South Dakota
Moody County has 88 bridges in the National Bridge Inventory, with 18 rated poor and 5 rated scour-critical. Its poor-condition share of 20.5% is above the 16.1% statewide average. Poor-condition bridges carry about 16,638 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Moody County a Bridge Condition Exposure Score of 41/100 (F). The county has 88 bridges in the National Bridge Inventory, including 18 in poor condition and 5 rated scour-critical. Poor-condition bridges carry about 16,638 daily vehicle crossings. Poor condition does not mean unsafe; bridges judged unsafe are closed or restricted by transportation agencies.
How the Score Breaks Down
| Factor | Weight | County Value | Penalty |
|---|---|---|---|
| Poor-condition bridge share | 40 | 20.5% | 40.0 |
| Poor-condition traffic exposure | 25 | 9.5% of measured traffic | 7.1 |
| Scour-critical bridge share | 20 | 5.7% | 11.4 |
| Average age vs national baseline | 10 | 50 years vs 48 nationally | 1.0 |
| Traffic-data completeness | 5 | 175,839 measured daily crossings | 0.0 |
Score = 100 minus weighted penalties. The score is a comparative research signal, not an official safety rating. Read the full methodology.
County Comparisons
| County Poor-Condition Share | 20.5% |
| State Poor-Condition Share | 16.1% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 5.7% |
| Average Bridge Age | 50 years |
| Poor-Condition Traffic Exposure | 16,638 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Moody County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| I029 S over Big Sioux Rv | Poor condition + traffic exposure | Poor | 7,985 | 1966 |
| I029 N over Big Sioux Rv | Poor condition + traffic exposure | Poor | 7,985 | 1966 |
| 223rd Street over Big Sioux Rv | Poor condition + traffic exposure | Poor | 100 | 1922 |
| 221st Street over Trib. To Big Sioux River | Poor condition + traffic exposure | Poor | 69 | 1915 |
| 221st Street over Spring Creek | Poor condition + traffic exposure | Poor | 69 | 1915 |
| 221st Street over Trib. To Big Sioux River | Poor condition + traffic exposure | Poor | 50 | 1915 |
| 226th Street over Spring Creek | Poor condition + traffic exposure | Poor | 50 | 1978 |
| 243rd Avenue over West Pipestone Creek | Poor condition + traffic exposure | Poor | 50 | 1990 |
| 471st Avenue over Bachelor Creek | Poor condition + traffic exposure | Poor | 50 | 1997 |
| 238th Street over Brookfield Creek | Poor condition + traffic exposure | Poor | 45 | 1920 |
Important safety note
Poor condition does not mean a bridge is unsafe. It means at least one major component has significant deterioration and the bridge is a priority for maintenance, repair, or replacement. Bridges judged unsafe are closed or restricted by transportation agencies.