FHWA NBI 2024 Inspection record Public-domain dataset

GUARD STATION RD.

Carrying GUARD STATION RD. over SLATE CREEK

SLATE CREEK, Idaho, Idaho

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
29 t Inventory load rating

Bridge Snapshot: GUARD STATION RD.

The GUARD STATION RD. bridge in Idaho, Idaho carries GUARD STATION RD. over SLATE CREEK. It was built in 1965, making it 61 years old today. The structure is built primarily of wood or timber and spans 1 section, stretching 12.2 meters (40 feet) end to end. Daily traffic averages 50 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 6/9, superstructure at 6/9, substructure at 5/9. The weakest component sits in fair condition. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 29.2 metric tons.

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

How GUARD STATION RD. compares

▼ 2.1
Load rating vs Idaho average (31.3 t)
Top 49%
Higher load rating than 51% of Idaho bridges
130
Bridges in Idaho · 10 in Poor condition
GUARD STATION RD. 29.2 t
Idaho average 31.3 t

Live comparison across Idaho.

Historical Sufficiency Rating

PlainBridge-computed
66.7 / 100 - historical 50–79.9 band
Structural adequacy /55
43.1
Serviceability /30
14.0
Essentiality /15
14.4
Special reductions
−4.9

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 How the historical reference is calculated.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
6/9
Fair (5–6)
Superstructure
6/9
Fair (5–6)
Substructure
5/9
Fair (5–6)
Inventory Load Rating
29.2 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1965
Material
Wood or Timber
Number of Spans
1
Structure Length
12.2 m (40 ft)
Deck Width
4.7 m (15 ft)
Owner
U.S. Forest Service
Avg Daily Traffic
50 vehicles/day
Structure Number
011701000000006

Condition Analysis

  • The deck (driving surface) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
  • The superstructure (beams and supports above the deck) rates fair at 6/9, minor deterioration that routine maintenance should address.
  • The substructure (piers and abutments) rates fair at 5/9, minor deterioration that routine maintenance should address.

How to read this record

This page shows what the last federal inspection recorded, not whether GUARD STATION RD. 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 GUARD STATION RD. against other structures in Idaho 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 GUARD STATION RD.?

GUARD STATION RD. in Idaho, Idaho has a deck rating of 6/9, superstructure rating of 6/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.

How often is GUARD STATION RD. inspected?

GUARD STATION RD.'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 50 vehicles per day.

What does “structurally deficient” mean in older bridge reports?

FHWA retired that reported status beginning with the 2018 archive. GUARD STATION RD. 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 GUARD STATION RD.?

GUARD STATION RD. has an NBI inventory load rating of 29.2 metric tons.

Who is responsible for maintaining GUARD STATION RD.?

GUARD STATION RD. is owned and maintained by U.S. Forest Service.

How old is GUARD STATION RD. and does age affect safety?

GUARD STATION RD. 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.