FHWA NBI 2024 Inspection record Public-domain dataset

Cb Cnty Rd 608

Carrying Cb Cnty Rd 608 over Cow Creek

18 Miles N. Of Baggs, Carbon, Wyoming

Inventory: FHWA NBI 2024 · last ETL August 2026

FHWA NBI record, refreshed with each annual release.

Poor
11 t Inventory load rating Lower than 98% of rated Wyoming bridges

Cb Cnty Rd 608 in Carbon, Wyoming sits above 2% of rated Wyoming bridges on inventory load rating (11 t), while its 1950 build year is earlier than 91% of Carbon's recorded-year cohort (206 bridges).

Cb Cnty Rd 608 in Carbon, Wyoming is rated Poor in the FHWA's 2024 National Bridge Inventory. Built in 1950, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 4. The lowest applicable rating sets the federal condition category, so this Poor 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 WY:EEC

INTERSTATE-ERA · STEEL · SINGLE-SPAN · TIED-CTRL · LOCAL-ADT · LIGHT-LOAD · CAT-POOR

  • INTERSTATE-ERA 1950–1979
  • STEEL Steel
  • SINGLE-SPAN Single span
  • TIED-CTRL Tied control
  • LOCAL-ADT Local ADT
  • LIGHT-LOAD Light load
  • CAT-POOR Poor

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: Cb Cnty Rd 608

The Cb Cnty Rd 608 bridge in Carbon, Wyoming carries Cb Cnty Rd 608 over Cow Creek. It was built in 1950, making it 76 years old today. It was last reconstructed in 1981, extending its service life. The structure is built primarily of steel and spans 1 section, stretching 18.3 meters (60 feet) end to end. Daily traffic averages 66 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 4/9, superstructure at 5/9, substructure at 4/9. The weakest component sits in poor condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed.

How Cb Cnty Rd 608 compares

▼ 22.8
Load rating vs Wyoming average (33.6 t; 3,118 of 3,136 rated)
206
Bridges in Carbon · 14 in Poor condition

Age against the county: built in 1950, earlier than 188 of Carbon's 206 bridges with a recorded construction year (91%), against a county median build year of 1969. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.

Cb Cnty Rd 608 10.8 t
Wyoming average (3,118 of 3,136 rated) 33.6 t

Live comparison across Wyoming bridges with a recorded inventory load rating (3,118 of 3,136 rated).

Cb Cnty Rd 608 vs every rated Wyoming bridge

Inventory load rating (metric tons), FHWA NBI, this state

11 Top 98% higher than 2% of 3,118 bridges

rated Wyoming 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

Deck
4/9
Poor (1–4)
Superstructure
5/9
Fair (5–6)
Substructure
4/9
Poor (1–4)
Inventory Load Rating
10.8 t
NBI inventory level (metric tons)
Overall Condition
Poor

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.

Carbon inventory by recorded NBI category

Exclusive Good/Fair/Poor bands across all 206 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
1950
Last Reconstructed
1981
Material
Steel
Number of Spans
1
Structure Length
18.3 m (60 ft)
Deck Width
5.5 m (18 ft)
Owner
County Highway Agency
Avg Daily Traffic
66 vehicles/day
Structure Number
EEC

Condition Analysis

  • The deck (driving surface) rates poor at 4/9, with advanced deterioration recorded on the latest inspection.
  • At 5/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
  • The substructure (piers and abutments) is in poor condition (4/9), showing advanced deterioration on the inspecting agency's 0-9 scale.

How to read this record

Cb Cnty Rd 608 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 Cb Cnty Rd 608 against other structures in Carbon 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 Cb Cnty Rd 608?

Cb Cnty Rd 608 in Carbon, Wyoming has a deck rating of 4/9, superstructure rating of 5/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.

How often is Cb Cnty Rd 608 inspected?

Cb Cnty Rd 608'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 66 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. Cb Cnty Rd 608 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 Cb Cnty Rd 608?

Cb Cnty Rd 608 has an NBI inventory load rating of 10.8 metric tons.

Who is responsible for maintaining Cb Cnty Rd 608?

Cb Cnty Rd 608 is owned and maintained by County Highway Agency.

How old is Cb Cnty Rd 608 and does age affect safety?

Cb Cnty Rd 608 was built in 1950, making it 76 years old and last reconstructed in 1981.

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

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.

XFacebookLinkedInWhatsAppEmail

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.