FHWA NBI 2024 Inspection record Public-domain dataset

Na Cnty Rd 106

Carrying Na Cnty Rd 106 over BNSF Railway

Powder River Streets, Natrona, Wyoming

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
45 t Inventory load rating

Bridge Snapshot: Na Cnty Rd 106

The Na Cnty Rd 106 bridge in Natrona, Wyoming carries Na Cnty Rd 106 over BNSF Railway. It was built in 2022, making it 4 years old today. The structure is built primarily of steel continuous and spans 3 sections, stretching 59.4 meters (195 feet) end to end. Daily traffic averages 20 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 8/9, superstructure at 8/9, substructure at 8/9. The weakest component sits in good condition. All reported major components score above the Poor range. Its NBI inventory load rating is 45.4 metric tons.

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

How Na Cnty Rd 106 compares

▲ 11.9
Load rating vs Wyoming average (33.5 t)
Top 10%
Higher load rating than 90% of Wyoming bridges
138
Bridges in Natrona · 5 in Poor condition
Na Cnty Rd 106 45.4 t
Wyoming average 33.5 t

Live comparison across Wyoming.

Historical Sufficiency Rating

PlainBridge-computed
95.0 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
25.0
Essentiality /15
15.0
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 How the historical reference is calculated.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
8/9
Good (7–9)
Superstructure
8/9
Good (7–9)
Substructure
8/9
Good (7–9)
Inventory Load Rating
45.4 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
2022
Material
Steel Continuous
Number of Spans
3
Structure Length
59.4 m (195 ft)
Deck Width
9.3 m (31 ft)
Owner
County Highway Agency
Avg Daily Traffic
20 vehicles/day
Structure Number
NCN

Condition Analysis

  • The deck (driving surface) is in good condition (8/9), showing no significant deterioration.
  • 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 Na Cnty Rd 106 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 Na Cnty Rd 106 against other structures in Natrona 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 Na Cnty Rd 106?

Na Cnty Rd 106 in Natrona, Wyoming has a deck rating of 8/9, superstructure rating of 8/9, and substructure rating of 8/9 on the FHWA's 0–9 scale.

How often is Na Cnty Rd 106 inspected?

Na Cnty Rd 106'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 20 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. Na Cnty Rd 106 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 Na Cnty Rd 106?

Na Cnty Rd 106 has an NBI inventory load rating of 45.4 metric tons.

Who is responsible for maintaining Na Cnty Rd 106?

Na Cnty Rd 106 is owned and maintained by County Highway Agency.

How old is Na Cnty Rd 106 and does age affect safety?

Na Cnty Rd 106 was built in 2022, making it 4 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.