US166 HWY
Carrying US166 HWY over NEGRO CREEK
1.73 MI E SUMNER COLN, Cowley, Kansas
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: US166 HWY
The US166 HWY bridge in Cowley, Kansas carries US166 HWY over NEGRO CREEK. It was built in 1931, making it 95 years old today. It was last reconstructed in 1987, extending its service life. The structure is built primarily of concrete and spans 4 sections, stretching 11.9 meters (39 feet) end to end. Daily traffic averages 2,290 vehicles, placing it in the moderately-trafficked tier of Kansas 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. All reported major components score above the Poor range. Its NBI inventory load rating is 12.7 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How US166 HWY compares
Live comparison across Kansas.
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 How the historical reference is calculated.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
- 1931
- Last Reconstructed
- 1987
- Material
- Concrete
- Number of Spans
- 4
- Structure Length
- 11.9 m (39 ft)
- Deck Width
- 26.1 m (86 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 2,290 vehicles/day
- Structure Number
- 999916600180361
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 US166 HWY 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 US166 HWY against other structures in Cowley and across Kansas. Kansas 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 US166 HWY?
US166 HWY in Cowley, Kansas on the FHWA's 0–9 scale.
How often is US166 HWY inspected?
US166 HWY'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 2,290 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. US166 HWY 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 US166 HWY?
US166 HWY has an NBI inventory load rating of 12.7 metric tons.
Who is responsible for maintaining US166 HWY?
US166 HWY is owned and maintained by State Highway Agency.
How old is US166 HWY and does age affect safety?
US166 HWY was built in 1931, making it 95 years old and last reconstructed in 1987.
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.