FDR 60099
Carrying FDR 60099 over COPPER CREEK
COBALT WORK CENTER, Lemhi, Idaho
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
FDR 60099 in Lemhi, Idaho sits above 29% of rated Idaho bridges on inventory load rating (25 t), while its 1971 build year is earlier than 67% of Lemhi's recorded-year cohort (112 bridges).
FDR 60099 in Lemhi, Idaho is rated Fair in the FHWA's 2024 National Bridge Inventory. Built in 1971, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 5. 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 ID:041301000001059
INTERSTATE-ERA · TIMBER · SINGLE-SPAN · SUPER-LED · TRACE-ADT · STANDARD-LOAD · CAT-FAIR
- INTERSTATE-ERA 1950–1979
- TIMBER Wood or timber
- SINGLE-SPAN Single span
- SUPER-LED Superstructure-led
- TRACE-ADT Trace ADT
- STANDARD-LOAD Standard 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: FDR 60099
The FDR 60099 bridge in Lemhi, Idaho carries FDR 60099 over COPPER CREEK. It was built in 1971, making it 55 years old today. It was last reconstructed in 1995, extending its service life. The structure is built primarily of wood or timber and spans 1 section, stretching 10.4 meters (34 feet) end to end. Daily traffic averages 5 vehicles, placing it in the lower-traffic tier of Idaho bridges. It is owned and maintained by U.S. Forest Service.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 5/9, substructure at 7/9. The weakest component sits in fair condition. No reported major component scores in the Poor range under the current federal condition thresholds.
How FDR 60099 compares
Age against the county: built in 1971, earlier than 75 of Lemhi's 112 bridges with a recorded construction year (67%), against a county median build year of 1991. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across Idaho bridges with a recorded inventory load rating (4,574 of 4,616 rated).
FDR 60099 vs every rated Idaho bridge
Inventory load rating (metric tons), FHWA NBI, this state
25 Top 71% higher than 29% of 4,574 bridges
rated Idaho 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.
Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.
Lemhi inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 112 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
- 1971
- Last Reconstructed
- 1995
- Material
- Wood or Timber
- Number of Spans
- 1
- Structure Length
- 10.4 m (34 ft)
- Deck Width
- 4.6 m (15 ft)
- Owner
- U.S. Forest Service
- Avg Daily Traffic
- 5 vehicles/day
- Structure Number
- 041301000001059
Condition Analysis
- • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
- • The superstructure (beams and supports above the deck) rates fair at 5/9, minor deterioration that routine maintenance should address.
- • The substructure (piers and abutments) rates good at 7/9, with no significant deterioration on file.
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 FDR 60099 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 FDR 60099 against other structures in Lemhi and across Idaho. Idaho 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 FDR 60099?
FDR 60099 in Lemhi, Idaho has a deck rating of 7/9, superstructure rating of 5/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is FDR 60099 inspected?
FDR 60099'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 5 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. FDR 60099 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 FDR 60099?
FDR 60099 has an NBI inventory load rating of 24.9 metric tons.
Who is responsible for maintaining FDR 60099?
FDR 60099 is owned and maintained by U.S. Forest Service.
How old is FDR 60099 and does age affect safety?
FDR 60099 was built in 1971, making it 55 years old and last reconstructed in 1995.
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.