FHWA NBI 2024 Inspection record Public-domain dataset

ST-29 179TH St.

Carrying ST-29 179TH St. over TRIB. TO STRANGER CREEK

2.8N 3.0W OF BASEHOR, Leavenworth, Kansas

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
46 t Inventory load rating

Bridge Snapshot: ST-29 179TH St.

The ST-29 179TH St. bridge in Leavenworth, Kansas carries ST-29 179TH St. over TRIB. TO STRANGER CREEK. It was built in 1991, making it 35 years old today. The structure is built primarily of concrete continuous and spans 3 sections, stretching 37.5 meters (123 feet) end to end. Daily traffic averages 80 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 a deck rating of 7/9, superstructure at 7/9, substructure at 7/9. The weakest component sits in good condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 46.3 metric tons.

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

How ST-29 179TH St. compares

▲ 17.2
Load rating vs Kansas average (29.1 t)
Top 11%
Higher load rating than 89% of Kansas bridges
241
Bridges in Leavenworth · 7 in Poor condition
ST-29 179TH St. 46.3 t
Kansas average 29.1 t

Live comparison across Kansas.

Historical Sufficiency Rating

PlainBridge-computed
100.0 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
30.0
Essentiality /15
15.0
Special reductions
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 How the historical reference is calculated.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

Deck
7/9
Good (7–9)
Superstructure
7/9
Good (7–9)
Substructure
7/9
Good (7–9)
Inventory Load Rating
46.3 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
1991
Material
Concrete Continuous
Number of Spans
3
Structure Length
37.5 m (123 ft)
Deck Width
7.9 m (26 ft)
Owner
County Highway Agency
Avg Daily Traffic
80 vehicles/day
Structure Number
000521071004144

Condition Analysis

  • The deck (driving surface) rates good at 7/9, with no significant deterioration on file.
  • The superstructure (beams and supports above the deck) is in good condition (7/9), showing no significant deterioration.
  • The substructure (piers and abutments) rates good at 7/9, with no significant deterioration on file.

How to read this record

This page shows what the last federal inspection recorded, not whether ST-29 179TH St. 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-29 179TH St. 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-29 179TH St.?

ST-29 179TH St. in Leavenworth, 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 ST-29 179TH St. inspected?

ST-29 179TH St.'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 80 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. ST-29 179TH St. 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 ST-29 179TH St.?

ST-29 179TH St. has an NBI inventory load rating of 46.3 metric tons.

Who is responsible for maintaining ST-29 179TH St.?

ST-29 179TH St. is owned and maintained by County Highway Agency.

How old is ST-29 179TH St. and does age affect safety?

ST-29 179TH St. was built in 1991, making it 35 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.