FHWA NBI 2024 Inspection record Public-domain dataset

MO 6 E

Carrying MO 6 E over HOGE BR

S 30 T 62 N R 13 W, Adair, Missouri

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
43 t Inventory load rating

Bridge Snapshot: MO 6 E

The MO 6 E bridge in Adair, Missouri carries MO 6 E over HOGE BR. It was built in 1926, making it 100 years old today. The structure is built primarily of concrete continuous and spans 2 sections, stretching 9.1 meters (30 feet) end to end. Daily traffic averages 2,634 vehicles, placing it in the moderately-trafficked tier of Missouri bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show culvert at 4/9. The weakest component sits in poor condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed. Its NBI inventory load rating is 43.2 metric tons.

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

How MO 6 E compares

▲ 9.5
Load rating vs Missouri average (33.7 t)
Top 23%
Higher load rating than 77% of Missouri bridges
301
Bridges in Adair · 20 in Poor condition
MO 6 E 43.2 t
Missouri average 33.7 t

Live comparison across Missouri.

Historical Sufficiency Rating

PlainBridge-computed
62.6 / 100 - historical 50–79.9 band
Structural adequacy /55
30.0
Serviceability /30
27.0
Essentiality /15
5.6
Special reductions
−0.1

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

Culvert
4/9
Poor (1–4)
Inventory Load Rating
43.2 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1926
Material
Concrete Continuous
Number of Spans
2
Structure Length
9.1 m (30 ft)
Deck Width
11.0 m (36 ft)
Owner
State Highway Agency
Avg Daily Traffic
2,634 vehicles/day
Structure Number
4965

How to read this record

MO 6 E is in the federal Poor condition category. That is a component-based result, not a closure order.

  • NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
  • Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
  • Compare MO 6 E 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 MO 6 E?

MO 6 E in Adair, Missouri on the FHWA's 0–9 scale.

How often is MO 6 E inspected?

MO 6 E'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 2,634 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. MO 6 E is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for MO 6 E?

MO 6 E has an NBI inventory load rating of 43.2 metric tons.

Who is responsible for maintaining MO 6 E?

MO 6 E is owned and maintained by State Highway Agency.

How old is MO 6 E and does age affect safety?

MO 6 E was built in 1926, making it 100 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.