FHWA NBI 2024 Inspection record Public-domain dataset

COUNTY ROAD 455

Carrying COUNTY ROAD 455 over ALLEN CR

S 18 T 65 N R 10 W, Scotland, Missouri

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
37 t Inventory load rating

Bridge Snapshot: COUNTY ROAD 455

The COUNTY ROAD 455 bridge in Scotland, Missouri carries COUNTY ROAD 455 over ALLEN CR. It was built in 1989, making it 37 years old today. The structure is built primarily of steel and spans 1 section, stretching 7.6 meters (25 feet) end to end. Daily traffic averages 50 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 6/9, 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 36.9 metric tons.

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

How COUNTY ROAD 455 compares

▲ 3.2
Load rating vs Missouri average (33.7 t)
Top 37%
Higher load rating than 63% of Missouri bridges
201
Bridges in Scotland · 9 in Poor condition
COUNTY ROAD 455 36.9 t
Missouri average 33.7 t

Live comparison across Missouri.

Historical Sufficiency Rating

PlainBridge-computed
78.0 / 100 - historical 50–79.9 band
Structural adequacy /55
45.0
Serviceability /30
21.0
Essentiality /15
15.0
Special reductions
−3.0

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 How the historical reference is calculated.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
6/9
Fair (5–6)
Superstructure
6/9
Fair (5–6)
Substructure
5/9
Fair (5–6)
Inventory Load Rating
36.9 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1989
Material
Steel
Number of Spans
1
Structure Length
7.6 m (25 ft)
Deck Width
6.0 m (20 ft)
Owner
County Highway Agency
Avg Daily Traffic
50 vehicles/day
Structure Number
20466

Condition Analysis

  • At 6/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
  • 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 COUNTY ROAD 455 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 ROAD 455 against other structures in Scotland 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 ROAD 455?

COUNTY ROAD 455 in Scotland, Missouri has a deck rating of 6/9, superstructure rating of 6/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.

How often is COUNTY ROAD 455 inspected?

COUNTY ROAD 455'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 50 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. COUNTY ROAD 455 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 ROAD 455?

COUNTY ROAD 455 has an NBI inventory load rating of 36.9 metric tons.

Who is responsible for maintaining COUNTY ROAD 455?

COUNTY ROAD 455 is owned and maintained by County Highway Agency.

How old is COUNTY ROAD 455 and does age affect safety?

COUNTY ROAD 455 was built in 1989, making it 37 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.