FHWA NBI 2024 Inspection record Public-domain dataset

SH 324

Carrying SH 324 over Narrow Creek

2.5 MI SW SH 9, Perry, Arkansas

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
16 t Inventory load rating

Bridge Snapshot: SH 324

The SH 324 bridge in Perry, Arkansas carries SH 324 over Narrow Creek. It was built in 1989, making it 37 years old today. The structure is built primarily of concrete and spans 3 sections, stretching 6.7 meters (22 feet) end to end. Daily traffic averages 230 vehicles, placing it in the lower-traffic tier of Arkansas bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show culvert at 7/9. The weakest component sits in good condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 16.3 metric tons.

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

How SH 324 compares

▼ 8.6
Load rating vs Arkansas average (24.9 t)
Bottom 7%
Lower load rating than 93% of Arkansas bridges
57
Bridges in Perry · 1 in Poor condition
SH 324 16.3 t
Arkansas average 24.9 t

Live comparison across Arkansas.

Historical Sufficiency Rating

PlainBridge-computed
76.9 / 100 - historical 50–79.9 band
Structural adequacy /55
34.0
Serviceability /30
28.0
Essentiality /15
14.9
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 How the historical reference is calculated.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

Culvert
7/9
Good (7–9)
Inventory Load Rating
16.3 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
1989
Material
Concrete
Number of Spans
3
Structure Length
6.7 m (22 ft)
Owner
State Highway Agency
Avg Daily Traffic
230 vehicles/day
Structure Number
0000000000X0739

How to read this record

This page shows what the last federal inspection recorded, not whether SH 324 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 SH 324 against other structures in Perry and across Arkansas. Arkansas 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 SH 324?

SH 324 in Perry, Arkansas on the FHWA's 0–9 scale.

How often is SH 324 inspected?

SH 324'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 230 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. SH 324 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 SH 324?

SH 324 has an NBI inventory load rating of 16.3 metric tons.

Who is responsible for maintaining SH 324?

SH 324 is owned and maintained by State Highway Agency.

How old is SH 324 and does age affect safety?

SH 324 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.