State profile · Near national median SD

Hawaii bridge safety

Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Hawaii — drawn straight from the FHWA National Bridge Inventory.

1,206
Public bridges
37.0%
Good condition
6.5%
Poor condition
6.5%
Structurally deficient

Total Bridges

1,206

Public highway bridges in Hawaii

Good Condition

37.0%

446 bridges rated 7-9

-13.0pp vs 50% benchmark

Poor Condition

6.5%

78 bridges rated 0-4

Structurally Deficient

6.5%

78 bridges flagged for repair priority

-0.5pp vs national avg 7.0%

Hawaii vs national bridge condition

Hawaii — Good condition share 37.0%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Hawaii — Structurally deficient share 21.6%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

Condition Distribution

Bridge inventory deck-condition mix — Hawaii (FHWA NBI)

Hawaii36.981757877280266%56.053067993366504%GoodFairPoorStructurally Deficient
Bridge inventory deck-condition mix — Hawaii (FHWA NBI)

Counties (5)

Hawaii 241 Honolulu 686 Kalawao 1 Kauai 93 Maui 185

Hawaii vs nearby ranks

Adjacent states on the structurally deficient leaderboard (lower share = better)

States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Hawaii on the same metric.

55

Wisconsin

6.13% top marginal rate
Structure
Progressive
Burden @ $100K
$14,851

37

North Carolina

6.16% top marginal rate
Structure
Progressive
Burden @ $100K
$18,901
Selected

15

Hawaii

6.47% top marginal rate
Structure
Progressive
Burden @ $100K
$1,206

30

Montana

6.70% top marginal rate
Structure
Progressive
Burden @ $100K
$5,122

36

New York

6.90% top marginal rate
Structure
Progressive
Burden @ $100K
$19,132

Bridges Needing Most Attention in Hawaii

Six lowest-condition bridges in Hawaii, ranked by composite NBI rating. Each is inspected at least every 24 months.

TINKER ROAD

Structurally Deficient

Over: WAIMANALO STREAM

100 m N of Bellows Gate, Honolulu, HI

Built 1941 Load: 2.7 t ADT: 500

KUHIO HWY

Poor

Over: WAINIHA RIVER #2

0.13MI SE/WAINIHA RD, Kauai, HI

Built 2004 Load: 4.9 t ADT: 3,300

Puolo Road

Structurally Deficient

Over: Drainage Channel

0.29 MI S/KAUMUALII-PUOLO, Kauai, HI

Built 1966 Load: 6.5 t ADT: 100

KOLOA RD

Structurally Deficient

Over: Waikomo Stream

0.07MI E/POIPU-KOLOA JCT, Kauai, HI

Built 1928 Load: 7.1 t ADT: 12,108

HANA HWY

Poor

Over: ALAALAULA STRM

3.14MI S/RD TO HAMOA, Maui, HI

Built 1915 Load: 7.1 t ADT: 649

Ala Wai GC Culvert

Structurally Deficient

Over: Ala Wai GC Drain

TMK=2-7-36, Honolulu, HI

Built 1975 Load: 7.8 t ADT: 1,000

Related

All states → | National rankings → | Understanding conditions → | SD bridges explained →
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.

Understanding Bridge Conditions

How FHWA rates bridge condition on a 0-9 scale.

Check Your Daily Bridges

How to look up bridge condition data for bridges on your route.

Read our methodology — how this data is sourced, computed, and verified.