FHWA NBI 2024 Inspection record Public-domain dataset

N4320-N.COUNTRY CL

Carrying N4320-N.COUNTRY CL over CREEK

.6S 1E OF US62/SH16, Muskogee, Oklahoma

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
9 t Inventory load rating

Bridge Snapshot: N4320-N.COUNTRY CL

The N4320-N.COUNTRY CL bridge in Muskogee, Oklahoma carries N4320-N.COUNTRY CL over CREEK. It was built in 1980, making it 46 years old today. The structure is built primarily of steel and spans 3 sections, stretching 7.3 meters (24 feet) end to end. Daily traffic averages 950 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 8.5 metric tons.

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

How N4320-N.COUNTRY CL compares

▼ 23.9
Load rating vs Oklahoma average (32.4 t)
Bottom 2%
Lower load rating than 98% of Oklahoma bridges
396
Bridges in Muskogee · 38 in Poor condition
N4320-N.COUNTRY CL 8.5 t
Oklahoma average 32.4 t

Live comparison across Oklahoma.

Historical Sufficiency Rating

PlainBridge-computed
53.8 / 100 - historical 50–79.9 band
Structural adequacy /55
17.0
Serviceability /30
25.0
Essentiality /15
14.8
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 How the historical reference is calculated.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
7/9
Good (7–9)
Inventory Load Rating
8.5 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
1980
Material
Steel
Number of Spans
3
Structure Length
7.3 m (24 ft)
Deck Width
12.4 m (41 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
950 vehicles/day
Structure Number
299810000000000

How to read this record

This page shows what the last federal inspection recorded, not whether N4320-N.COUNTRY CL 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 N4320-N.COUNTRY CL against other structures in Muskogee 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 N4320-N.COUNTRY CL?

N4320-N.COUNTRY CL in Muskogee, Oklahoma on the FHWA's 0–9 scale.

How often is N4320-N.COUNTRY CL inspected?

N4320-N.COUNTRY CL'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 950 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. N4320-N.COUNTRY CL 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 N4320-N.COUNTRY CL?

N4320-N.COUNTRY CL has an NBI inventory load rating of 8.5 metric tons.

Who is responsible for maintaining N4320-N.COUNTRY CL?

N4320-N.COUNTRY CL is owned and maintained by City/Municipal Highway Agency.

How old is N4320-N.COUNTRY CL and does age affect safety?

N4320-N.COUNTRY CL was built in 1980, making it 46 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.