FHWA NBI 2024 Inspection record Public-domain dataset

COUNTY LINE WAY

Carrying COUNTY LINE WAY over UNNAMED STREAM

S 21 T 64 N R 14 W, Adair, Missouri

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
12 t Inventory load rating

Bridge Snapshot: COUNTY LINE WAY

The COUNTY LINE WAY bridge in Adair, Missouri carries COUNTY LINE WAY over UNNAMED STREAM. It was built in 2010, making it 16 years old today. The structure is built primarily of wood or timber and spans 1 section, stretching 7.6 meters (25 feet) end to end. Daily traffic averages 15 vehicles, placing it in the lower-traffic tier of Missouri 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. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 11.7 metric tons.

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

How COUNTY LINE WAY compares

▼ 22.0
Load rating vs Missouri average (33.7 t)
Bottom 6%
Lower load rating than 94% of Missouri bridges
301
Bridges in Adair · 20 in Poor condition
COUNTY LINE WAY 11.7 t
Missouri average 33.7 t

Live comparison across Missouri.

Historical Sufficiency Rating

PlainBridge-computed
45.8 / 100 - historical 20–49.9 band
Structural adequacy /55
14.4
Serviceability /30
16.5
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 How the historical reference is calculated.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
6/9
Fair (5–6)
Substructure
5/9
Fair (5–6)
Inventory Load Rating
11.7 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
2010
Material
Wood or Timber
Number of Spans
1
Structure Length
7.6 m (25 ft)
Deck Width
4.9 m (16 ft)
Owner
County Highway Agency
Avg Daily Traffic
15 vehicles/day
Structure Number
34239

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 fair condition (6/9), with minor deterioration that may require routine maintenance.
  • The substructure (piers and abutments) is in fair condition (5/9), with minor deterioration that may require routine maintenance.

How to read this record

This page shows what the last federal inspection recorded, not whether COUNTY LINE WAY 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 COUNTY LINE WAY against other structures in Adair and across Missouri. Missouri 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 COUNTY LINE WAY?

COUNTY LINE WAY in Adair, Missouri 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 COUNTY LINE WAY inspected?

COUNTY LINE WAY'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 15 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. COUNTY LINE WAY 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 COUNTY LINE WAY?

COUNTY LINE WAY has an NBI inventory load rating of 11.7 metric tons.

Who is responsible for maintaining COUNTY LINE WAY?

COUNTY LINE WAY is owned and maintained by County Highway Agency.

How old is COUNTY LINE WAY and does age affect safety?

COUNTY LINE WAY was built in 2010, making it 16 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.