FHWA NBI 2024 Inspection record Public-domain dataset

RS 412 F.5-16.6

Carrying RS 412 F.5-16.6 over STREAM

S.E. COR. OF AMERICUS, Lyon, Kansas

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
47 t Inventory load rating

Bridge Snapshot: RS 412 F.5-16.6

The RS 412 F.5-16.6 bridge in Lyon, Kansas carries RS 412 F.5-16.6 over STREAM. It was built in 1965, making it 61 years old today. The structure is built primarily of concrete and spans 2 sections, stretching 9.1 meters (30 feet) end to end. Daily traffic averages 2,599 vehicles, placing it in the moderately-trafficked tier of Kansas bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show culvert at 6/9. The weakest component sits in fair condition. All reported major components score above the Poor range. Its NBI inventory load rating is 46.9 metric tons.

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

How RS 412 F.5-16.6 compares

▲ 17.8
Load rating vs Kansas average (29.1 t)
Top 11%
Higher load rating than 89% of Kansas bridges
493
Bridges in Lyon · 5 in Poor condition
RS 412 F.5-16.6 46.9 t
Kansas average 29.1 t

Live comparison across Kansas.

Historical Sufficiency Rating

PlainBridge-computed
93.4 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
27.0
Essentiality /15
14.4
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 How the historical reference is calculated.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
6/9
Fair (5–6)
Inventory Load Rating
46.9 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1965
Material
Concrete
Number of Spans
2
Structure Length
9.1 m (30 ft)
Deck Width
11.4 m (37 ft)
Owner
County Highway Agency
Avg Daily Traffic
2,599 vehicles/day
Structure Number
000000000560140

How to read this record

This page shows what the last federal inspection recorded, not whether RS 412 F.5-16.6 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 RS 412 F.5-16.6 against other structures in Lyon 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 RS 412 F.5-16.6?

RS 412 F.5-16.6 in Lyon, Kansas on the FHWA's 0–9 scale.

How often is RS 412 F.5-16.6 inspected?

RS 412 F.5-16.6'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 2,599 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. RS 412 F.5-16.6 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 RS 412 F.5-16.6?

RS 412 F.5-16.6 has an NBI inventory load rating of 46.9 metric tons.

Who is responsible for maintaining RS 412 F.5-16.6?

RS 412 F.5-16.6 is owned and maintained by County Highway Agency.

How old is RS 412 F.5-16.6 and does age affect safety?

RS 412 F.5-16.6 was built in 1965, making it 61 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.