FHWA NBI 2024 Inspection record Public-domain dataset

BIRCH CRK RD 651

Carrying BIRCH CRK RD 651 over BIRCH CR

S 28 T 27 N R 5 W, Shannon, Missouri

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
17 t Inventory load rating

Bridge Snapshot: BIRCH CRK RD 651

The BIRCH CRK RD 651 bridge in Shannon, Missouri carries BIRCH CRK RD 651 over BIRCH CR. It was built in 1938, making it 88 years old today. The structure is built primarily of concrete continuous and spans 2 sections, stretching 10.7 meters (35 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 7/9, superstructure at 7/9, substructure at 6/9. 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 17.1 metric tons.

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

How BIRCH CRK RD 651 compares

▼ 16.6
Load rating vs Missouri average (33.7 t)
Bottom 16%
Lower load rating than 84% of Missouri bridges
63
Bridges in Shannon · 6 in Poor condition
BIRCH CRK RD 651 17.1 t
Missouri average 33.7 t

Live comparison across Missouri.

Historical Sufficiency Rating

PlainBridge-computed
78.5 / 100 - historical 50–79.9 band
Structural adequacy /55
35.5
Serviceability /30
28.0
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 How the historical reference is calculated.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
7/9
Good (7–9)
Substructure
6/9
Fair (5–6)
Inventory Load Rating
17.1 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1938
Material
Concrete Continuous
Number of Spans
2
Structure Length
10.7 m (35 ft)
Deck Width
6.7 m (22 ft)
Owner
County Highway Agency
Avg Daily Traffic
50 vehicles/day
Structure Number
17466

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

How to read this record

This page shows what the last federal inspection recorded, not whether BIRCH CRK RD 651 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 BIRCH CRK RD 651 against other structures in Shannon 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 BIRCH CRK RD 651?

BIRCH CRK RD 651 in Shannon, 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 BIRCH CRK RD 651 inspected?

BIRCH CRK RD 651'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. BIRCH CRK RD 651 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 BIRCH CRK RD 651?

BIRCH CRK RD 651 has an NBI inventory load rating of 17.1 metric tons.

Who is responsible for maintaining BIRCH CRK RD 651?

BIRCH CRK RD 651 is owned and maintained by County Highway Agency.

How old is BIRCH CRK RD 651 and does age affect safety?

BIRCH CRK RD 651 was built in 1938, making it 88 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.