FHWA NBI 2024 Inspection record Public-domain dataset

RS 359 NW 170 AVE

Carrying RS 359 NW 170 AVE over SILVER CREEK

5.5N OF CUNNINGHAM, Kingman, Kansas

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
38 t Inventory load rating

Bridge Snapshot: RS 359 NW 170 AVE

The RS 359 NW 170 AVE bridge in Kingman, Kansas carries RS 359 NW 170 AVE over SILVER CREEK. It was built in 1981, making it 45 years old today. The structure is built primarily of steel and spans 4 sections, stretching 33.5 meters (110 feet) end to end. Daily traffic averages 450 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 6/9, substructure at 5/9. The weakest component sits in fair condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 37.5 metric tons.

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

How RS 359 NW 170 AVE compares

▲ 8.4
Load rating vs Kansas average (29.1 t)
Top 24%
Higher load rating than 76% of Kansas bridges
391
Bridges in Kingman · 22 in Poor condition
RS 359 NW 170 AVE 37.5 t
Kansas average 29.1 t

Live comparison across Kansas.

Historical Sufficiency Rating

PlainBridge-computed
84.6 / 100 - historical 80–100 band
Structural adequacy /55
45.0
Serviceability /30
24.7
Essentiality /15
14.9
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 How the historical reference is calculated.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
6/9
Fair (5–6)
Substructure
5/9
Fair (5–6)
Inventory Load Rating
37.5 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1981
Material
Steel
Number of Spans
4
Structure Length
33.5 m (110 ft)
Deck Width
8.8 m (29 ft)
Owner
County Highway Agency
Avg Daily Traffic
450 vehicles/day
Structure Number
000000000480240

Condition Analysis

  • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
  • The superstructure (beams and supports above the deck) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
  • At 5/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.

How to read this record

This page shows what the last federal inspection recorded, not whether RS 359 NW 170 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 359 NW 170 AVE against other structures in Kingman 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 359 NW 170 AVE?

RS 359 NW 170 AVE in Kingman, Kansas has a deck rating of 7/9, superstructure rating of 6/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.

How often is RS 359 NW 170 AVE inspected?

RS 359 NW 170 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 450 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. RS 359 NW 170 AVE 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 359 NW 170 AVE?

RS 359 NW 170 AVE has an NBI inventory load rating of 37.5 metric tons.

Who is responsible for maintaining RS 359 NW 170 AVE?

RS 359 NW 170 AVE is owned and maintained by County Highway Agency.

How old is RS 359 NW 170 AVE and does age affect safety?

RS 359 NW 170 AVE was built in 1981, making it 45 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.