Weber County Bridge Report Card
Weber County scores 75 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Weber County, Utah
Weber County has 129 bridges in the National Bridge Inventory, with 9 rated poor and 6 rated scour-critical. Its poor-condition share of 7.0% is above the 3.5% statewide average. Poor-condition bridges carry about 66,270 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Weber County a Bridge Condition Exposure Score of 75/100 (C). The county has 129 bridges in the National Bridge Inventory, including 9 in poor condition and 6 rated scour-critical. Poor-condition bridges carry about 66,270 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 | 7.0% | 14.0 |
| Poor-condition traffic exposure | 25 | 1.8% of measured traffic | 1.4 |
| Scour-critical bridge share | 20 | 4.7% | 9.3 |
| Average age vs national baseline | 10 | 46 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 3,649,238 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 | 7.0% |
| State Poor-Condition Share | 3.5% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 4.7% |
| Average Bridge Age | 46 years |
| Poor-Condition Traffic Exposure | 66,270 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Weber County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Exchange Road over Weber River | Poor condition + traffic exposure | Poor | 504 | 1970 |
| I-84 (sr-84) Wbl over 4400 South Street | Poor condition + traffic exposure | Poor | 22,044 | 1967 |
| I-84 (sr-84) Ebl over Us-89 (sr-89) Nbl & Sbl | Poor condition + traffic exposure | Poor | 18,995 | 1967 |
| 4400 South Street over I-15 (sr-15) Nbl And Sbl | Poor condition + traffic exposure | Poor | 9,768 | 1966 |
| Sr-39 12th Street over Weber River | Poor condition + traffic exposure | Poor | 7,420 | 1970 |
| Parker Drive-ogden over Weber River | Poor condition + traffic exposure | Poor | 6,300 | 1965 |
| County Road over North Fork Ogden River | Poor condition + traffic exposure | Poor | 1,000 | 1972 |
| County Road over No.br.so.fk. Ogden River | Poor condition + traffic exposure | Poor | 189 | 1948 |
| Road 20077 over South Fork Ogden River | Poor condition + traffic exposure | Poor | 50 | 1954 |
| County Road over North Fork Ogden River | Scour-critical foundation rating | Fair | 5,200 | 1947 |
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.