FS ROUTE 612
Carrying FS ROUTE 612 over N.F. CDA RIVER
18 MI FROM CD'A IDAHO, Kootenai, Idaho
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: FS ROUTE 612
The FS ROUTE 612 bridge in Kootenai, Idaho carries FS ROUTE 612 over N.F. CDA RIVER. It was built in 1976, making it 50 years old today. The structure is built primarily of prestressed concrete and spans 3 sections, stretching 43.6 meters (143 feet) end to end. Daily traffic averages 40 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 7/9, substructure at 7/9. The weakest component sits in good condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 34.0 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How FS ROUTE 612 compares
Live comparison across Idaho.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 1976
- Material
- Prestressed Concrete
- Number of Spans
- 3
- Structure Length
- 43.6 m (143 ft)
- Deck Width
- 10.8 m (35 ft)
- Owner
- U.S. Forest Service
- Avg Daily Traffic
- 40 vehicles/day
- Structure Number
- 010403000000119
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
- • The superstructure (beams and supports above the deck) is in good condition (7/9), showing no significant deterioration.
- • The substructure (piers and abutments) rates good at 7/9, with no significant deterioration on file.
How to read this record
This page shows what the last federal inspection recorded, not whether FS ROUTE 612 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 FS ROUTE 612 against other structures in Kootenai 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 FS ROUTE 612?
FS ROUTE 612 in Kootenai, Idaho has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is FS ROUTE 612 inspected?
FS ROUTE 612'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 40 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. FS ROUTE 612 is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for FS ROUTE 612?
FS ROUTE 612 has an NBI inventory load rating of 34.0 metric tons.
Who is responsible for maintaining FS ROUTE 612?
FS ROUTE 612 is owned and maintained by U.S. Forest Service.
How old is FS ROUTE 612 and does age affect safety?
FS ROUTE 612 was built in 1976, making it 50 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.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.