U.S. 412 ALT.
Carrying U.S. 412 ALT. over SALINE CREEK
5.1 MI E MAYES CO, Delaware, Oklahoma
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: U.S. 412 ALT.
The U.S. 412 ALT. bridge in Delaware, Oklahoma carries U.S. 412 ALT. over SALINE CREEK. It was built in 1953, making it 73 years old today. The structure is built primarily of concrete and spans 3 sections, stretching 11.9 meters (39 feet) end to end. Daily traffic averages 2,600 vehicles, placing it in the moderately-trafficked tier of Oklahoma bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show culvert at 7/9. The weakest component sits in good condition. None of this bridge's reported major components fall into the Poor condition range. 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 U.S. 412 ALT. 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 How the historical reference is calculated.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
- 1953
- Material
- Concrete
- Number of Spans
- 3
- Structure Length
- 11.9 m (39 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 2,600 vehicles/day
- Structure Number
- 129310000000000
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
This page shows what the last federal inspection recorded, not whether U.S. 412 ALT. 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 U.S. 412 ALT. against other structures in Delaware 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 U.S. 412 ALT.?
U.S. 412 ALT. in Delaware, Oklahoma on the FHWA's 0–9 scale.
How often is U.S. 412 ALT. inspected?
U.S. 412 ALT.'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 2,600 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. U.S. 412 ALT. 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 U.S. 412 ALT.?
U.S. 412 ALT. has an NBI inventory load rating of 32.7 metric tons.
Who is responsible for maintaining U.S. 412 ALT.?
U.S. 412 ALT. is owned and maintained by State Highway Agency.
How old is U.S. 412 ALT. and does age affect safety?
U.S. 412 ALT. was built in 1953, making it 73 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.