Box Elder County Bridge Report Card
Box Elder County scores 84 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Box Elder County, Utah
Box Elder County has 184 bridges in the National Bridge Inventory, with 11 rated poor and 3 rated scour-critical. Its poor-condition share of 6.0% is above the 3.5% statewide average. Poor-condition bridges carry about 10,841 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Box Elder County a Bridge Condition Exposure Score of 84/100 (B). The county has 184 bridges in the National Bridge Inventory, including 11 in poor condition and 3 rated scour-critical. Poor-condition bridges carry about 10,841 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 | 6.0% | 12.0 |
| Poor-condition traffic exposure | 25 | 0.6% of measured traffic | 0.4 |
| Scour-critical bridge share | 20 | 1.6% | 3.3 |
| Average age vs national baseline | 10 | 49 years vs 48 nationally | 0.4 |
| Traffic-data completeness | 5 | 1,810,682 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 | 6.0% |
| State Poor-Condition Share | 3.5% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 1.6% |
| Average Bridge Age | 49 years |
| Poor-Condition Traffic Exposure | 10,841 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Box Elder County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| County Road over Malad River | Poor condition + traffic exposure | Poor | 139 | 1978 |
| Co. Rd. 25800 No. over Malad River | Poor condition + traffic exposure | Poor | 110 | 1930 |
| Sr-126 over I-15 (sr-15) Nbl And Sbl | Poor condition + traffic exposure | Poor | 8,412 | 1968 |
| Co.rd.-intchg.x-rd over I-84 (sr-84) | Poor condition + traffic exposure | Poor | 645 | 1989 |
| Town Str.-fa. #526 over Deep Creek | Poor condition + traffic exposure | Poor | 630 | 1941 |
| Town Road-fa.#512 over Malad River | Poor condition + traffic exposure | Poor | 347 | 1945 |
| Town Road over Malad River | Poor condition + traffic exposure | Poor | 265 | 1969 |
| 15600 N.st. Co.rd. over West Canal | Poor condition + traffic exposure | Poor | 189 | 1950 |
| County Road over West Canal | Poor condition + traffic exposure | Poor | 71 | 1945 |
| Pocatello Val.co.r over I-84 (sr-84) Ebl & W | Poor condition + traffic exposure | Poor | 20 | 1959 |
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.