ST-51 206TH STREET
Carrying ST-51 206TH STREET over UNNAMED STREAM
0.7E 0.7S OF TONGANOXIE, Leavenworth, Kansas
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: ST-51 206TH STREET
The ST-51 206TH STREET bridge in Leavenworth, Kansas carries ST-51 206TH STREET over UNNAMED STREAM. It was built in 1962, making it 64 years old today. The structure is built primarily of concrete and spans 1 section, stretching 7.3 meters (24 feet) end to end. Daily traffic averages 690 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. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 35.9 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How ST-51 206TH STREET 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 How the historical reference is calculated.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
- 1962
- Material
- Concrete
- Number of Spans
- 1
- Structure Length
- 7.3 m (24 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 690 vehicles/day
- Structure Number
- 000000000520440
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 ST-51 206TH STREET 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 ST-51 206TH STREET against other structures in Leavenworth 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 ST-51 206TH STREET?
ST-51 206TH STREET in Leavenworth, Kansas on the FHWA's 0–9 scale.
How often is ST-51 206TH STREET inspected?
ST-51 206TH STREET'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 690 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. ST-51 206TH STREET 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 ST-51 206TH STREET?
ST-51 206TH STREET has an NBI inventory load rating of 35.9 metric tons.
Who is responsible for maintaining ST-51 206TH STREET?
ST-51 206TH STREET is owned and maintained by County Highway Agency.
How old is ST-51 206TH STREET and does age affect safety?
ST-51 206TH STREET was built in 1962, making it 64 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.