SW 50 Ave
Carrying SW 50 Ave over STREAM
4.5W 0.4N OF SPRING, Harper, Kansas
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: SW 50 Ave
The SW 50 Ave bridge in Harper, Kansas carries SW 50 Ave over STREAM. It was built in 1952, making it 74 years old today. The structure is built primarily of concrete and spans 2 sections, stretching 8.8 meters (29 feet) end to end. Daily traffic averages 10 vehicles, placing it in the lower-traffic tier of Kansas bridges. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show culvert at 5/9. The weakest component sits in fair condition. All reported major components score above the Poor range. Its NBI inventory load rating is 13.6 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How SW 50 Ave 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 How the historical reference is calculated.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
- 1952
- Material
- Concrete
- Number of Spans
- 2
- Structure Length
- 8.8 m (29 ft)
- Deck Width
- 6.1 m (20 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 10 vehicles/day
- Structure Number
- 000390733007046
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 SW 50 Ave 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 SW 50 Ave against other structures in Harper 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 SW 50 Ave?
SW 50 Ave in Harper, Kansas on the FHWA's 0–9 scale.
How often is SW 50 Ave inspected?
SW 50 Ave'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 10 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. SW 50 Ave is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for SW 50 Ave?
SW 50 Ave has an NBI inventory load rating of 13.6 metric tons.
Who is responsible for maintaining SW 50 Ave?
SW 50 Ave is owned and maintained by County Highway Agency.
How old is SW 50 Ave and does age affect safety?
SW 50 Ave was built in 1952, making it 74 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.