FHWA NBI 2024 Inspection record Public-domain dataset

NW 50TH

Carrying NW 50TH over CREEK

114.79, Canadian, Oklahoma

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
33 t Inventory load rating

Bridge Snapshot: NW 50TH

The NW 50TH bridge in Canadian, Oklahoma carries NW 50TH over CREEK. It was built in 2000, making it 26 years old today. The structure is built primarily of concrete and spans 3 sections, stretching 9.8 meters (32 feet) end to end. Daily traffic averages 22,700 vehicles, placing it in the heavily-trafficked tier of Oklahoma bridges. It is owned and maintained by State Toll Authority.

The latest FHWA inspection records show culvert at 8/9. The weakest component sits in good condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 32.7 metric tons.

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

How NW 50TH compares

▲ 0.3
Load rating vs Oklahoma average (32.4 t)
Top 50%
Higher load rating than 50% of Oklahoma bridges
492
Bridges in Canadian · 17 in Poor condition
NW 50TH 32.7 t
Oklahoma average 32.4 t

Live comparison across Oklahoma.

Historical Sufficiency Rating

PlainBridge-computed
90.6 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
30.0
Essentiality /15
8.6
Special reductions
−3.0

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 How the historical reference is calculated.

Condition Ratings

Culvert
8/9
Good (7–9)
Inventory Load Rating
32.7 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
2000
Material
Concrete
Number of Spans
3
Structure Length
9.8 m (32 ft)
Deck Width
53.3 m (175 ft)
Owner
State Toll Authority
Avg Daily Traffic
22,700 vehicles/day
Structure Number
258970000000000

How to read this record

This page shows what the last federal inspection recorded, not whether NW 50TH 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 NW 50TH against other structures in Canadian and across Oklahoma. Oklahoma 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 NW 50TH?

NW 50TH in Canadian, Oklahoma on the FHWA's 0–9 scale.

How often is NW 50TH inspected?

NW 50TH'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 22,700 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. NW 50TH 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 NW 50TH?

NW 50TH has an NBI inventory load rating of 32.7 metric tons.

Who is responsible for maintaining NW 50TH?

NW 50TH is owned and maintained by State Toll Authority.

How old is NW 50TH and does age affect safety?

NW 50TH was built in 2000, making it 26 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.