FHWA NBI 2024 Inspection record Public-domain dataset

RICHLAND SCHOOL RD

Carrying RICHLAND SCHOOL RD over TRIB. TO PRAIRIE C

S 33 T 50 N R 14 W, Boone, Missouri

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
30 t Inventory load rating

Bridge Snapshot: RICHLAND SCHOOL RD

The RICHLAND SCHOOL RD bridge in Boone, Missouri carries RICHLAND SCHOOL RD over TRIB. TO PRAIRIE C. It was built in 1981, making it 45 years old today. The structure is built primarily of prestressed concrete and spans 1 section, stretching 11.0 meters (36 feet) end to end. Daily traffic averages 25 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 7/9, substructure at 8/9. The weakest component sits in good condition. All reported major components score above the Poor range. Its NBI inventory load rating is 29.7 metric tons.

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

How RICHLAND SCHOOL RD compares

▼ 4.0
Load rating vs Missouri average (33.7 t)
Bottom 41%
Lower load rating than 59% of Missouri bridges
334
Bridges in Boone · 11 in Poor condition
RICHLAND SCHOOL RD 29.7 t
Missouri average 33.7 t

Live comparison across Missouri.

Historical Sufficiency Rating

PlainBridge-computed
89.5 / 100 - historical 80–100 band
Structural adequacy /55
53.6
Serviceability /30
24.0
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 How the historical reference is calculated.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
7/9
Good (7–9)
Superstructure
7/9
Good (7–9)
Substructure
8/9
Good (7–9)
Inventory Load Rating
29.7 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
1981
Material
Prestressed Concrete
Number of Spans
1
Structure Length
11.0 m (36 ft)
Deck Width
6.9 m (23 ft)
Owner
County Highway Agency
Avg Daily Traffic
25 vehicles/day
Structure Number
14557

Condition Analysis

  • The deck (driving surface) rates good at 7/9, with no significant deterioration on file.
  • At 7/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
  • At 8/9, the substructure (piers and abutments) is in good shape and shows no significant wear.

How to read this record

This page shows what the last federal inspection recorded, not whether RICHLAND SCHOOL RD 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 RICHLAND SCHOOL RD 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 RICHLAND SCHOOL RD?

RICHLAND SCHOOL RD in Boone, Missouri has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 8/9 on the FHWA's 0–9 scale.

How often is RICHLAND SCHOOL RD inspected?

RICHLAND SCHOOL RD'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 25 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. RICHLAND SCHOOL RD is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for RICHLAND SCHOOL RD?

RICHLAND SCHOOL RD has an NBI inventory load rating of 29.7 metric tons.

Who is responsible for maintaining RICHLAND SCHOOL RD?

RICHLAND SCHOOL RD is owned and maintained by County Highway Agency.

How old is RICHLAND SCHOOL RD and does age affect safety?

RICHLAND SCHOOL RD 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.