FHWA NBI 2024 Inspection record Public-domain dataset

FS ROUTE NO. 208

Carrying FS ROUTE NO. 208 over CDA RIVER

21 MI. FROM BABINS JCT., Shoshone, Idaho

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
35 t Inventory load rating

Bridge Snapshot: FS ROUTE NO. 208

The FS ROUTE NO. 208 bridge in Shoshone, Idaho carries FS ROUTE NO. 208 over CDA RIVER. It was built in 1965, making it 61 years old today. The structure is built primarily of prestressed concrete and spans 3 sections, stretching 56.4 meters (185 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 8/9, substructure at 8/9. The weakest component sits in good condition. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 35.3 metric tons.

Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.

How FS ROUTE NO. 208 compares

▲ 4.0
Load rating vs Idaho average (31.3 t)
Top 31%
Higher load rating than 69% of Idaho bridges
139
Bridges in Shoshone · 9 in Poor condition
FS ROUTE NO. 208 35.3 t
Idaho average 31.3 t

Live comparison across Idaho.

Historical Sufficiency Rating

PlainBridge-computed
85.0 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
25.0
Essentiality /15
13.0
Special reductions
−8.0

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

Deck
7/9
Good (7–9)
Superstructure
8/9
Good (7–9)
Substructure
8/9
Good (7–9)
Inventory Load Rating
35.3 t
NBI inventory level (metric tons)
Overall Condition
Good

Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.

Structural Details

Year Built
1965
Material
Prestressed Concrete
Number of Spans
3
Structure Length
56.4 m (185 ft)
Deck Width
9.0 m (30 ft)
Owner
U.S. Forest Service
Avg Daily Traffic
40 vehicles/day
Structure Number
010401000000242

Condition Analysis

  • At 7/9, the deck (driving surface) is in good shape and shows no significant wear.
  • At 8/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
  • The substructure (piers and abutments) rates good at 8/9, with no significant deterioration on file.

How to read this record

This page shows what the last federal inspection recorded, not whether FS ROUTE NO. 208 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 NO. 208 against other structures in Shoshone 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 NO. 208?

FS ROUTE NO. 208 in Shoshone, Idaho has a deck rating of 7/9, superstructure rating of 8/9, and substructure rating of 8/9 on the FHWA's 0–9 scale.

How often is FS ROUTE NO. 208 inspected?

FS ROUTE NO. 208'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 NO. 208 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 NO. 208?

FS ROUTE NO. 208 has an NBI inventory load rating of 35.3 metric tons.

Who is responsible for maintaining FS ROUTE NO. 208?

FS ROUTE NO. 208 is owned and maintained by U.S. Forest Service.

How old is FS ROUTE NO. 208 and does age affect safety?

FS ROUTE NO. 208 was built in 1965, making it 61 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.

Data sourced from the Federal Highway Administration National Bridge Inventory. See our methodology for details. Retrieved and formatted by PlainBridges

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.