US24 HWY WB
Carrying US24 HWY WB over BIG BLUE RIVER
1.35 MI E RILEY COLN WB, Pottawatomie, Kansas
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
US24 HWY WB in Pottawatomie, Kansas sits above 46% of rated Kansas bridges on inventory load rating (26 t), while its 1960 build year is earlier than 74% of Pottawatomie's recorded-year cohort (303 bridges).
US24 HWY WB in Pottawatomie, Kansas is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 1960, it carries 3 rated components 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:999902400750011
INTERSTATE-ERA · STEEL · MULTI-SPAN · TIED-CTRL · HEAVY-ADT · STANDARD-LOAD · CAT-GOOD
- INTERSTATE-ERA 1950–1979
- STEEL Steel
- MULTI-SPAN 3 spans
- TIED-CTRL Tied control
- HEAVY-ADT Heavy ADT
- STANDARD-LOAD Standard 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.
Structural health score
A composite of the deck, superstructure, and substructure NBI condition ratings plus the inventory load rating, benchmarked against the full national bridge corpus, distinct from the Good/Fair/Poor category above.
Bridge Snapshot: US24 HWY WB
The US24 HWY WB bridge in Pottawatomie, Kansas carries US24 HWY WB over BIG BLUE RIVER. It was built in 1960, making it 66 years old today. It was last reconstructed in 1991, extending its service life. The structure is built primarily of steel continuous and spans 3 sections, stretching 127.9 meters (420 feet) end to end. Daily traffic averages 12,950 vehicles, placing it in the heavily-trafficked tier of Kansas bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection places the weakest component in good condition (see the full component ratings below). No reported major component scores in the Poor range under the current federal condition thresholds.
How US24 HWY WB compares
Age against the county: built in 1960, earlier than 224 of Pottawatomie's 303 bridges with a recorded construction year (74%), against a county median build year of 1979. 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).
US24 HWY WB vs every rated Kansas bridge
Inventory load rating (metric tons), FHWA NBI, this state
26 Top 54% higher than 46% 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.
Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.
Pottawatomie inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 303 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
- Last Reconstructed
- 1991
- Material
- Steel Continuous
- Number of Spans
- 3
- Structure Length
- 127.9 m (420 ft)
- Deck Width
- 12.8 m (42 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 12,950 vehicles/day
- Structure Number
- 999902400750011
Condition Analysis
- • At 7/9, the deck (driving surface) is in good shape and shows no significant wear.
- • At 7/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
- • The substructure (piers and abutments) rates good at 7/9, with no significant deterioration on file.
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 US24 HWY WB 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 US24 HWY WB against other structures in Pottawatomie 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 US24 HWY WB?
US24 HWY WB in Pottawatomie, Kansas has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is US24 HWY WB inspected?
US24 HWY WB'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 12,950 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. US24 HWY WB 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 US24 HWY WB?
US24 HWY WB has an NBI inventory load rating of 25.8 metric tons.
Who is responsible for maintaining US24 HWY WB?
US24 HWY WB is owned and maintained by State Highway Agency.
How old is US24 HWY WB and does age affect safety?
US24 HWY WB was built in 1960, making it 66 years old and last reconstructed in 1991.
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.