COUNTY RD. FA.#504
Carrying COUNTY RD. FA.#504 over BLUE CREEK
1 MILE WEST OF LAMPO JCT., Box Elder, Utah
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
COUNTY RD. FA.#504 in Box Elder, Utah is rated Fair in the FHWA's 2024 National Bridge Inventory.
Built in 1954, it carries 1 rated component on the inspecting agency's 0-9 scale, and its weakest reported component scores 6. The lowest applicable rating sets the federal condition category, so this Fair result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.
NBI record plate
Structure UT:003060E
INTERSTATE-ERA · CONCRETE · MULTI-SPAN · CULVERT-LED · LOCAL-ADT · HEAVY-LOAD · CAT-FAIR
- INTERSTATE-ERA 1950–1979
- CONCRETE Concrete
- MULTI-SPAN 2 spans
- CULVERT-LED Culvert-led
- LOCAL-ADT Local ADT
- HEAVY-LOAD Heavy load
- CAT-FAIR Fair
Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.
Bridge Snapshot: COUNTY RD. FA.#504
The COUNTY RD. FA.#504 bridge in Box Elder, Utah carries COUNTY RD. FA.#504 over BLUE CREEK. It was built in 1954, making it 72 years old today. The structure is built primarily of concrete continuous and spans 2 sections, stretching 8.0 meters (26 feet) end to end. Daily traffic averages 446 vehicles, placing it in the lower-traffic tier of Utah bridges. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show culvert at 6/9. The weakest component sits in fair condition. All reported major components score above the Poor range.
How COUNTY RD. FA.#504 compares
Age against the county: built in 1954, earlier than 158 of Box Elder's 184 bridges with a recorded construction year (86%), against a county median build year of 1976. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across Utah bridges with a recorded inventory load rating (3,113 of 3,125 rated).
COUNTY RD. FA.#504 vs every rated Utah bridge
Inventory load rating (metric tons), FHWA NBI, this state
56 Top 10% higher than 90% of 3,113 bridges
rated Utah bridges, bucketed by value
Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · August 2026
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Box Elder inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 184 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.
Structural Details
- Year Built
- 1954
- Material
- Concrete Continuous
- Number of Spans
- 2
- Structure Length
- 8.0 m (26 ft) 0
- Owner
- County Highway Agency
- Avg Daily Traffic
- 446 vehicles/day
- Structure Number
- 003060E
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
This page shows what the last federal inspection recorded, not whether COUNTY RD. FA.#504 is safe to cross today. Here is how to use it.
- NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
- Learn how the 0–9 condition scale and Good/Fair/Poor categories are defined. How condition ratings work
- Compare COUNTY RD. FA.#504 against other structures in Box Elder and across Utah. Utah bridges
- Noticed visible damage or a safety concern? Report it to the agency that owns the bridge, or call 911 in an emergency. How to report a bridge
Condition codes come straight from the FHWA National Bridge Inventory and are not a real-time safety judgment. Only the owning agency, a state DOT, county, or other owner, can post, restrict, or close a bridge.
Frequently Asked Questions
What do the condition ratings mean for COUNTY RD. FA.#504?
COUNTY RD. FA.#504 in Box Elder, Utah on the FHWA's 0–9 scale.
How often is COUNTY RD. FA.#504 inspected?
COUNTY RD. FA.#504's responsible agency sets its routine interval under FHWA's risk-based inspection rules; this page does not expose the scheduled interval. It carries about 446 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. COUNTY RD. FA.#504 is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for COUNTY RD. FA.#504?
COUNTY RD. FA.#504 has an NBI inventory load rating of 56.1 metric tons.
Who is responsible for maintaining COUNTY RD. FA.#504?
COUNTY RD. FA.#504 is owned and maintained by County Highway Agency.
How old is COUNTY RD. FA.#504 and does age affect safety?
COUNTY RD. FA.#504 was built in 1954, making it 72 years old.
Disclaimer: Bridge condition data is from the FHWA NBI and reflects the last reported inspection. A Poor condition rating is not a live declaration that a bridge is closed or unsafe for travel. For current closure, posting, or safety information, contact the responsible transportation agency.
Share this inspection record
Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.