FHWA NBI 2024 Inspection record Public-domain dataset

Puolo Road

Carrying Puolo Road over Drainage Channel

0.29 MI S/KAUMUALII-PUOLO, Kauai, Hawaii

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
7 t Inventory load rating

Bridge Snapshot: Puolo Road

The Puolo Road bridge in Kauai, Hawaii carries Puolo Road over Drainage Channel. It was built in 1966, making it 60 years old today. The structure is built primarily of concrete and spans 4 sections, stretching 17.7 meters (58 feet) end to end. Daily traffic averages 100 vehicles, placing it in the lower-traffic tier of Hawaii bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show culvert at 3/9. The weakest component sits in poor condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed. Its NBI inventory load rating is 6.5 metric tons.

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

How Puolo Road compares

▼ 26.7
Load rating vs Hawaii average (33.2 t)
Bottom 1%
Lower load rating than 99% of Hawaii bridges
93
Bridges in Kauai · 10 in Poor condition
Puolo Road 6.5 t
Hawaii average 33.2 t

Live comparison across Hawaii.

Historical Sufficiency Rating

PlainBridge-computed
41.0 / 100 - historical 20–49.9 band
Structural adequacy /55
0.0
Serviceability /30
26.0
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 How the historical reference is calculated.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

Culvert
3/9
Poor (1–4)
Inventory Load Rating
6.5 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1966
Material
Concrete
Number of Spans
4
Structure Length
17.7 m (58 ft)
Deck Width
7.5 m (25 ft)
Owner
County Highway Agency
Avg Daily Traffic
100 vehicles/day
Structure Number
007119271118008

How to read this record

Puolo Road is in the federal Poor condition category. That is a component-based result, not a closure order.

  • NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
  • Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
  • Compare Puolo Road against other structures in Kauai and across Hawaii. Hawaii 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 Puolo Road?

Puolo Road in Kauai, Hawaii on the FHWA's 0–9 scale.

How often is Puolo Road inspected?

Puolo Road'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 100 vehicles per day.

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

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

What is the inventory load rating for Puolo Road?

Puolo Road has an NBI inventory load rating of 6.5 metric tons.

Who is responsible for maintaining Puolo Road?

Puolo Road is owned and maintained by County Highway Agency.

How old is Puolo Road and does age affect safety?

Puolo Road was built in 1966, making it 60 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.