FHWA NBI 2024 Inspection record Public-domain dataset

N4510

Carrying N4510 over TOWN BRANCH CREEK

.1S OF FIRST ST., Cherokee, Oklahoma

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
19 t Inventory load rating

Bridge Snapshot: N4510

The N4510 bridge in Cherokee, Oklahoma carries N4510 over TOWN BRANCH CREEK. It was built in 2010, making it 16 years old today. The structure is built primarily of concrete and spans 5 sections, stretching 21.4 meters (70 feet) end to end. Daily traffic averages 100 vehicles, placing it in the lower-traffic tier of Oklahoma bridges. It is owned and maintained by City/Municipal Highway Agency.

The latest FHWA inspection records show culvert at 7/9. The weakest component sits in good condition. All reported major components score above the Poor range. Its NBI inventory load rating is 19.1 metric tons.

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

How N4510 compares

▼ 13.3
Load rating vs Oklahoma average (32.4 t)
Bottom 9%
Lower load rating than 91% of Oklahoma bridges
203
Bridges in Cherokee · 22 in Poor condition
N4510 19.1 t
Oklahoma average 32.4 t

Live comparison across Oklahoma.

Historical Sufficiency Rating

PlainBridge-computed
79.2 / 100 - historical 50–79.9 band
Structural adequacy /55
39.2
Serviceability /30
27.0
Essentiality /15
15.0
Special reductions
−2.0

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 How the historical reference is calculated.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
7/9
Good (7–9)
Inventory Load Rating
19.1 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
2010
Material
Concrete
Number of Spans
5
Structure Length
21.4 m (70 ft)
Deck Width
8.2 m (27 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
100 vehicles/day
Structure Number
299310000000000

How to read this record

This page shows what the last federal inspection recorded, not whether N4510 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 N4510 against other structures in Cherokee 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 N4510?

N4510 in Cherokee, Oklahoma on the FHWA's 0–9 scale.

How often is N4510 inspected?

N4510'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 100 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. N4510 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 N4510?

N4510 has an NBI inventory load rating of 19.1 metric tons.

Who is responsible for maintaining N4510?

N4510 is owned and maintained by City/Municipal Highway Agency.

How old is N4510 and does age affect safety?

N4510 was built in 2010, making it 16 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.