State profile · Above national median SD

Guam bridge safety

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

59
Public bridges
37.3%
Good condition
15.3%
Poor condition
15.3%
Structurally deficient

Total Bridges

59

Public highway bridges in Guam

Good Condition

37.3%

22 bridges rated 7-9

-12.7pp vs 50% benchmark

Poor Condition

15.3%

9 bridges rated 0-4

Structurally Deficient

15.3%

9 bridges flagged for repair priority

8.3pp vs national avg 7.0%

Guam vs national bridge condition

Guam — Good condition share 37.3%
National avg

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

Guam — Structurally deficient share 50.8%
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 — Guam (FHWA NBI)

Guam37.28813559322034%47.45762711864407%15.254237288135593%15.254237288135593%GoodFairPoorStructurally Deficient
Bridge inventory deck-condition mix — Guam (FHWA NBI)

Counties (1)

Guam 59

Guam 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 Guam on the same metric.

72

Puerto Rico

11.98% top marginal rate
Structure
Progressive
Burden @ $100K
$2,387

23

Maine

13.23% top marginal rate
Structure
Progressive
Burden @ $100K
$771
Selected

66

Guam

15.25% top marginal rate
Structure
Progressive
Burden @ $100K
$59

54

West Virginia

16.02% top marginal rate
Structure
Progressive
Burden @ $100K
$7,679

46

South Dakota

16.24% top marginal rate
Structure
Progressive
Burden @ $100K
$5,905

Bridges Needing Most Attention in Guam

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

Route 4

Poor

Over: Manell Stream

3.8mi SE Rte4/Rte2, Guam, GU

Built 1960 Load: 7.1 t ADT: 4,000

Route 4

Poor

Over: Manell Stream

.3mi E on Rte4/Quinene Rd, Guam, GU

Built 1960 Load: 7.1 t ADT: 4,000

Route 4

Structurally Deficient

Over: Ajayan River

8.7mi S of RTE4 n RTE4A, Guam, GU

Built 1968 Load: 12.6 t ADT: 3,000

Route 4

Poor

Over: Pago River

0.8mi S of Rte4/Rte10, Guam, GU

Built 1984 Load: 15.6 t ADT: 25,000

Route 1

Structurally Deficient

Over: Atantano River

.25mi S of RTE1 n RTE2A, Guam, GU

Built 1953 Load: 17.5 t ADT: 31,000

Route 4

Poor

Over: Talofofo River

0.4mi W of Rte4/4A, Guam, GU

Built 1979 Load: 23.7 t ADT: 6,500

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.