Iredell County Bridge Report Card
Iredell County scores 64 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Iredell County, North Carolina
Iredell County has 331 bridges in the National Bridge Inventory, with 47 rated poor and 5 rated scour-critical. Its poor-condition share of 14.2% is above the 7.1% statewide average. Poor-condition bridges carry about 145,300 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Iredell County a Bridge Condition Exposure Score of 64/100 (D). The county has 331 bridges in the National Bridge Inventory, including 47 in poor condition and 5 rated scour-critical. Poor-condition bridges carry about 145,300 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 | 14.2% | 28.4 |
| Poor-condition traffic exposure | 25 | 5.6% of measured traffic | 4.2 |
| Scour-critical bridge share | 20 | 1.5% | 3.0 |
| Average age vs national baseline | 10 | 44 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 2,612,617 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 | 14.2% |
| State Poor-Condition Share | 7.1% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 1.5% |
| Average Bridge Age | 44 years |
| Poor-Condition Traffic Exposure | 145,300 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Iredell County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| I-77 Sbl over Third Creek | Poor condition + traffic exposure | Poor | 28,250 | 1964 |
| Sr1109 over Lake Norman | Poor condition + traffic exposure | Poor | 19,500 | 1961 |
| I40 Wbl over Buffalo Shoals Creek | Poor condition + traffic exposure | Poor | 17,750 | 1955 |
| I40 Ebl over Buffalo Shoals Creek | Poor condition + traffic exposure | Poor | 17,750 | 1957 |
| I77 Sbl over Rocky Creek | Poor condition + traffic exposure | Poor | 14,750 | 1972 |
| Sr1005 over I40 | Poor condition + traffic exposure | Poor | 7,300 | 1955 |
| Sr1142 over Dye Creek | Poor condition + traffic exposure | Poor | 4,200 | 1975 |
| Sr2398 over Southern R.r. | Poor condition + traffic exposure | Poor | 3,600 | 1955 |
| Sr2342 over I-77 | Poor condition + traffic exposure | Poor | 3,500 | 1957 |
| Sr1004 over Catawba River | Poor condition + traffic exposure | Poor | 3,500 | 1961 |
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.