RS 446 8TH. AVE.
Carrying RS 446 8TH. AVE. over BLAZE FORK CREEK
7.9N OF INMAN, McPherson, Kansas
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
RS 446 8TH. AVE. in McPherson, Kansas sits above 7% of rated Kansas bridges on inventory load rating (11 t), while its 1960 build year is earlier than 85% of McPherson's recorded-year cohort (586 bridges).
RS 446 8TH. AVE. in McPherson, Kansas is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 1960, it carries 1 rated component on the inspecting agency's 0-9 scale, and its weakest reported component scores 7. The lowest applicable rating sets the federal condition category, so this Good result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.
NBI record plate
Structure KS:000000000590520
INTERSTATE-ERA · CONCRETE · MULTI-SPAN · CULVERT-LED · LOCAL-ADT · LIGHT-LOAD · CAT-GOOD
- INTERSTATE-ERA 1950–1979
- CONCRETE Concrete
- MULTI-SPAN 3 spans
- CULVERT-LED Culvert-led
- LOCAL-ADT Local ADT
- LIGHT-LOAD Light load
- CAT-GOOD Good
Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.
Bridge Snapshot: RS 446 8TH. AVE.
The RS 446 8TH. AVE. bridge in McPherson, Kansas carries RS 446 8TH. AVE. over BLAZE FORK CREEK. It was built in 1960, making it 66 years old today. The structure is built primarily of concrete and spans 3 sections, stretching 18.8 meters (62 feet) end to end. Daily traffic averages 260 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 7/9. The weakest component sits in good condition. None of this bridge's reported major components fall into the Poor condition range.
How RS 446 8TH. AVE. compares
Age against the county: built in 1960, earlier than 496 of McPherson's 586 bridges with a recorded construction year (85%), against a county median build year of 1980. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across Kansas bridges with a recorded inventory load rating (24,893 of 24,894 rated).
RS 446 8TH. AVE. vs every rated Kansas bridge
Inventory load rating (metric tons), FHWA NBI, this state
11 Top 93% higher than 7% of 24,893 bridges
rated Kansas bridges, bucketed by value
Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · August 2026
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
McPherson inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 586 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.
Structural Details
- Year Built
- 1960
- Material
- Concrete
- Number of Spans
- 3
- Structure Length
- 18.8 m (62 ft) 0
- Owner
- County Highway Agency
- Avg Daily Traffic
- 260 vehicles/day
- Structure Number
- 000000000590520
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 RS 446 8TH. 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 RS 446 8TH. AVE. against other structures in McPherson 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 446 8TH. AVE.?
RS 446 8TH. AVE. in McPherson, Kansas on the FHWA's 0–9 scale.
How often is RS 446 8TH. AVE. inspected?
RS 446 8TH. 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 260 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. RS 446 8TH. AVE. 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 RS 446 8TH. AVE.?
RS 446 8TH. AVE. has an NBI inventory load rating of 11.2 metric tons.
Who is responsible for maintaining RS 446 8TH. AVE.?
RS 446 8TH. AVE. is owned and maintained by County Highway Agency.
How old is RS 446 8TH. AVE. and does age affect safety?
RS 446 8TH. AVE. was built in 1960, making it 66 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.
Share this inspection record
Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.