FAU 8421 (N MINGO
Carrying FAU 8421 (N MINGO over DOUGLAS CREEK
1800 N. MINGO RD., Tulsa, Oklahoma
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: FAU 8421 (N MINGO
The FAU 8421 (N MINGO bridge in Tulsa, Oklahoma carries FAU 8421 (N MINGO over DOUGLAS CREEK. It was built in 1955, making it 71 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 8,579 vehicles, placing it in the moderately-trafficked tier of Oklahoma bridges. It is owned and maintained by City/Municipal Highway Agency.
The latest FHWA inspection records show culvert at 3/9. The weakest component sits in poor condition. Because at least one major component scores 4 or lower, this bridge falls in FHWA's Poor condition category. That category is not a closure order. 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 FAU 8421 (N MINGO compares
Live comparison across Oklahoma.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 1955
- Material
- Concrete
- Number of Spans
- 3
- Structure Length
- 9.8 m (32 ft)
- Deck Width
- 21.0 m (69 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 8,579 vehicles/day
- Structure Number
- 133370000000000
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
FAU 8421 (N MINGO 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 FAU 8421 (N MINGO against other structures in Tulsa 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 FAU 8421 (N MINGO?
FAU 8421 (N MINGO in Tulsa, Oklahoma on the FHWA's 0–9 scale.
How often is FAU 8421 (N MINGO inspected?
FAU 8421 (N MINGO'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 8,579 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. FAU 8421 (N MINGO 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 FAU 8421 (N MINGO?
FAU 8421 (N MINGO has an NBI inventory load rating of 32.7 metric tons.
Who is responsible for maintaining FAU 8421 (N MINGO?
FAU 8421 (N MINGO is owned and maintained by City/Municipal Highway Agency.
How old is FAU 8421 (N MINGO and does age affect safety?
FAU 8421 (N MINGO was built in 1955, making it 71 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.
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.