Bridge conditions in Box Elder County, Utah
184 inventoried bridges · 11 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Box Elder County tracks close to typical: 11 of its 184 inventoried bridges (6.0%) are rated poor, against a national rate of about 7%.
- 11 of the 184 bridges in Box Elder County, Utah, are rated in poor condition (6.0%) in the 2025 National Bridge Inventory, as of .
- 42 bridges (22.8%) are rated good and 131 (71.2%) fair.
- The median Box Elder County bridge was built in 1976.
- The busiest poor-rated bridge is SR-126 over I-15 (SR-15) Nbl and Sbl (built 1968), carrying about 8,412 vehicles a day.
Good 22.8% · Fair 71.2% · Poor 6.0% of 184 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 |
|---|---|---|---|
| SR-126 over I-15 (SR-15) Nbl and Sbl | 1968 | 8,412 | Poor |
| Co.rd.-intchg.x-rd over I-84 (SR-84) | 1989 | 645 | Poor |
| Town Str.-fa. #526 over Deep Creek | 1941 | 630 | Poor |
| Town Road-fa.#512 over Malad River | 1945 | 347 | Poor |
| Town Road over Malad River | 1969 | 265 | Poor |
| 15600 N.st. Co.rd. over West Canal | 1950 | 189 | Poor |
| County Road over Malad River | 1978 | 139 | Poor |
| Co. Rd. 25800 No. over Malad River | 1930 | 110 | Poor |
| County Road over West Canal | 1945 | 71 | Poor |
| Pocatello Val.co.r over I-84 (SR-84) EBL & W | 1959 | 20 | Poor |
| 450 So.st. Town Rd over Corinne Canal | 1940 | 13 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-15 (SR-15) SB over 13600 North St. | 1989 | 195,867 | Good |
| I-15 (SR-15) Nbl over Hot Springs Lane and U | 1976 | 67,875 | Fair |
| I-15 (SR-15) Nbl over Nerva Lane (county Road) | 1976 | 67,875 | Fair |
| I-15 (SR-15) Nbl over SR-315 to Willard Bay | 1976 | 67,875 | Fair |
| I-15 (SR-15) Sbl over Hot Springs Ln.& Abd | 1976 | 67,875 | Fair |
| I-15 (SR-15) Sbl over Nerva Lane (county Road) | 1976 | 67,875 | Fair |
| I-15 (SR-15) Sbl over SR-315 to Willard Bay | 1976 | 67,875 | Fair |
| I-15 (SR-15) Nbl over Cannery Rd.(city Street) | 1976 | 58,637 | Fair |
| I-15 (SR-15) Sbl over Cannery Rd (city Street) | 1976 | 58,637 | Good |
| I-15 (SR-15) Nbl over SR-13 and UPRR | 1967 | 32,262 | Fair |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Utah: Utah 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.