FHWA NBI 2024 Inspection record Public-domain dataset

Sb Cnty Rd 175

Carrying Sb Cnty Rd 175 over New Fork River

T30N R110W S22, Sublette, Wyoming

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
4 t Inventory load rating

Bridge Snapshot: Sb Cnty Rd 175

The Sb Cnty Rd 175 bridge in Sublette, Wyoming carries Sb Cnty Rd 175 over New Fork River. It was built in 1940, making it 86 years old today. The structure is built primarily of steel and spans 6 sections, stretching 76.5 meters (251 feet) end to end. Daily traffic averages 11 vehicles, placing it in the lower-traffic tier of Wyoming bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 6/9, superstructure at 3/9, substructure at 5/9. The weakest component sits in poor condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules. Its NBI inventory load rating is 4.3 metric tons.

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

How Sb Cnty Rd 175 compares

▼ 29.2
Load rating vs Wyoming average (33.5 t)
Bottom 1%
Lower load rating than 99% of Wyoming bridges
109
Bridges in Sublette · 10 in Poor condition
Sb Cnty Rd 175 4.3 t
Wyoming average 33.5 t

Live comparison across Wyoming.

Historical Sufficiency Rating

PlainBridge-computed
19.8 / 100 - historical under-20 band
Structural adequacy /55
0.0
Serviceability /30
6.0
Essentiality /15
13.8
Special reductions
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 How the historical reference is calculated.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
6/9
Fair (5–6)
Superstructure
3/9
Poor (1–4)
Substructure
5/9
Fair (5–6)
Inventory Load Rating
4.3 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1940
Material
Steel
Number of Spans
6
Structure Length
76.5 m (251 ft)
Deck Width
4.6 m (15 ft)
Owner
County Highway Agency
Avg Daily Traffic
11 vehicles/day
Structure Number
ENJ

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 poor at 3/9, advanced deterioration that should be prioritized for repair.
  • The substructure (piers and abutments) rates fair at 5/9, minor deterioration that routine maintenance should address.

How to read this record

Sb Cnty Rd 175 is in the federal Poor condition category. That is a component-based result, not a closure order.

  • NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
  • Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
  • Compare Sb Cnty Rd 175 against other structures in Sublette and across Wyoming. Wyoming 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 Sb Cnty Rd 175?

Sb Cnty Rd 175 in Sublette, Wyoming has a deck rating of 6/9, superstructure rating of 3/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.

How often is Sb Cnty Rd 175 inspected?

Sb Cnty Rd 175'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 11 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. Sb Cnty Rd 175 is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for Sb Cnty Rd 175?

Sb Cnty Rd 175 has an NBI inventory load rating of 4.3 metric tons.

Who is responsible for maintaining Sb Cnty Rd 175?

Sb Cnty Rd 175 is owned and maintained by County Highway Agency.

How old is Sb Cnty Rd 175 and does age affect safety?

Sb Cnty Rd 175 was built in 1940, making it 86 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.