State profile · Above median Poor share

Guam bridge safety

Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Guam, based on the FHWA National Bridge Inventory.

59
Public bridges
37.3%
Good condition
15.3%
Poor condition

Data updated May 2026

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 whose lowest applicable component is rated 0-4

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 - Poor-condition share 50.8%
National avg

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

Condition Distribution

Guam37.3%47.5%15.3%GoodFairPoor
Bridge inventory deck-condition mix - Guam (FHWA NBI)

Counties (1)

Guam 59

Guam vs nearby ranks

Adjacent states by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Guam on the same metric.

PR

Puerto Rico

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

ME

Maine

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

GU

Guam

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

WV

West Virginia

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

SD

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 the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

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

Poor

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

Poor

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 → | Retired SD term explained →
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.

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). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

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.

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.