WAGON TRAIL RD S
Carrying WAGON TRAIL RD S over US 63
S 18 T 49 N R 12 W, Boone, Missouri
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
WAGON TRAIL RD S in Boone, Missouri sits above 91% of rated Missouri bridges on inventory load rating (54 t), while its 1985 build year is earlier than 45% of Boone's recorded-year cohort (334 bridges).
WAGON TRAIL RD S in Boone, Missouri is rated Fair in the FHWA's 2024 National Bridge Inventory. Built in 1985, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 6. The lowest applicable rating sets the federal condition category, so this Fair result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.
NBI record plate
Structure MO:3314
LATE-CENTURY · STEEL · MULTI-SPAN · SUB-LED · LOCAL-ADT · HEAVY-LOAD · CAT-FAIR
- LATE-CENTURY 1980–1999
- STEEL Steel
- MULTI-SPAN 2 spans
- SUB-LED Substructure-led
- LOCAL-ADT Local ADT
- HEAVY-LOAD Heavy load
- CAT-FAIR Fair
Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.
Bridge Snapshot: WAGON TRAIL RD S
The WAGON TRAIL RD S bridge in Boone, Missouri carries WAGON TRAIL RD S over US 63. It was built in 1985, making it 41 years old today. The structure is built primarily of steel continuous and spans 2 sections, stretching 93.3 meters (306 feet) end to end. Daily traffic averages 504 vehicles, placing it in the lower-traffic tier of Missouri bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 7/9, substructure at 6/9. The weakest component sits in fair condition. All reported major components score above the Poor range.
How WAGON TRAIL RD S compares
Age against the county: built in 1985, earlier than 149 of Boone's 334 bridges with a recorded construction year (45%), against a county median build year of 1982. This is one of the newer structures in its county.
Live comparison across Missouri bridges with a recorded inventory load rating (24,616 of 24,618 rated).
WAGON TRAIL RD S vs every rated Missouri bridge
Inventory load rating (metric tons), FHWA NBI, this state
54 Top 9% higher than 91% of 24,616 bridges
rated Missouri bridges, bucketed by value
Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · August 2026
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.
Boone inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 334 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.
Structural Details
- Year Built
- 1985
- Material
- Steel Continuous
- Number of Spans
- 2
- Structure Length
- 93.3 m (306 ft)
- Deck Width
- 10.8 m (35 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 504 vehicles/day
- Structure Number
- 3314
Condition Analysis
- • At 7/9, the deck (driving surface) is in good shape and shows no significant wear.
- • The superstructure (beams and supports above the deck) is in good condition (7/9), showing no significant deterioration.
- • At 6/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
This page shows what the last federal inspection recorded, not whether WAGON TRAIL RD S 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 WAGON TRAIL RD S against other structures in Boone 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 WAGON TRAIL RD S?
WAGON TRAIL RD S in Boone, Missouri has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is WAGON TRAIL RD S inspected?
WAGON TRAIL RD S'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 504 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. WAGON TRAIL RD S 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 WAGON TRAIL RD S?
WAGON TRAIL RD S has an NBI inventory load rating of 54.0 metric tons.
Who is responsible for maintaining WAGON TRAIL RD S?
WAGON TRAIL RD S is owned and maintained by State Highway Agency.
How old is WAGON TRAIL RD S and does age affect safety?
WAGON TRAIL RD S was built in 1985, making it 41 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.
Share this inspection record
Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.