County profile · official public datasets

Cayey County, PR

81 public highway bridges tracked in the FHWA National Bridge Inventory: 6.2% rated Good, 82.7% Fair, 11.1% Poor.

81
Public bridges: 6.2%
Good condition: 11.1%
Poor condition

The verdict

According to the Federal Highway Administration's 2024 National Bridge Inventory.

Cayey County pairs a better-than-median Poor-condition share among rated counties in the state with an older average build year than the state inventory.

Top 32%
lowest Poor share in state: 11.1%
Poor-condition share: 81
public highway bridges: 1967
avg year built

Poor is an FHWA condition category from the lowest applicable component rating (4 or below), not a live crossing-safety or closure decision. Rankings cover counties with at least five public highway bridges.

Cayey County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Cayey County ranks #24 of 74 Puerto Rico counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 11.1%). Cayey County, Puerto Rico contains 81 public highway bridges. Roughly 6.2% are rated “Good,” 82.7% “Fair,” and 11.1% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

Total bridges

Public highway bridges in Cayey County

Good condition

6.2%

5 of 81 rated 7-9

Fair condition

82.7%

67 of 81 rated 5-6

Poor condition

11.1%

9 of 81 rated 4 or below

In-state Poor-share rank

#24 of 74

Among Puerto Rico counties with 5+ bridges, lower share ranks better

Condition distribution

Share of 81 NBI-tracked bridges by lowest applicable component rating.

Good

6.2% (5)

Fair

82.7% (67)

Poor

11.1% (9)

Cayey County's Poor-condition bridges carry 38,200 vehicle crossings a day

That is 2.3% of the county's reported daily bridge traffic on 11.1% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 4,244 crossings a day against 6,610 for a Good-condition one. A Poor rating is a condition category, not a closure or a live safety judgement; it means the lowest applicable component rating is 4 or below.

Computed over the 81 of 81 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

80.2% of Cayey County's bridges have passed the 50-year mark

65 of the 81 bridges with a recorded construction year were built in 1974 or earlier. Age alone is not a defect: a well-maintained older bridge can rate Good, and 6.2% of this county's inventory does. Even so, this older cohort is the population from which future Poor ratings are drawn, which is why the age profile below matters alongside the condition split above.

Cutoff derives from the 2024 release year minus a 50-year design life. Source: FHWA National Bridge Inventory, 2024 release.

One structure carries 43.1% of the county's Poor-condition bridge traffic

PR 52 SOUTHBOUND over DEPRESSION, built 1974, carries 16,450 vehicles a day, the most of any Poor-rated structure here. The county's Poor-condition exposure is concentrated rather than evenly spread, so the 9-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 38,200 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

pre-1900

3
1900s

2
1920s

3
1930s

2
1940s

5
1950s

3
1960s

8
1970s

42
1980s

1
1990s

5
2000s

5
2010s

1
2020s

1

What this shows Construction peaked in the 1970s, when 42 of the county's bridges still in the inventory were built, which is 51.9% of those with a recorded year. That cohort is now 45 to 54 years old in the 2024 inventory. Its average build year is 1967, 7 years older than the Puerto Rico average of 1974.

How Cayey County compares with Puerto Rico's closest counties by inventory size

The 5 Puerto Rico counties nearest Cayey County in number of bridges, with their condition splits. Its 11.1% Poor share is the 5th-lowest of these 6. Its average build year of 1967 against a peer-group mean of 1978 is 11 years older.

Showing the 5 closest of 73 Puerto Rico counties eligible for comparison.

Bridge inventory size and condition shares for Cayey County and the 5 Puerto Rico counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Caguas County	92	10.9%	78.3%	10.9%	1965
Cayey County (this page)	81	6.2%	82.7%	11.1%	1967
Bayamón County	78	14.1%	75.6%	10.3%	1977
Carolina County	73	28.8%	60.3%	11%	1983
Humacao County	69	26.1%	60.9%	13%	1985
Guaynabo County	63	28.6%	61.9%	9.5%	1981

Each share is of that county's own total tracked bridges; peers are the counties with 5 or more bridges whose inventory size is closest to Cayey County's. Source: FHWA National Bridge Inventory, 2024 release.

Nationwide counties with similar inventory size or average build year

Two NBI-derived peer sets for Cayey County, both outside Puerto Rico so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside PR (81 bridges here).

Berrien County, GA · 81 bridges
Fayette County, GA · 81 bridges
Sumter County, GA · 81 bridges
White County, GA · 81 bridges

Similar average build year

Nearest mean year-built outside PR (1967 here).

Los Angeles County, CA · avg 1967 · 3,547 bridges
Allegheny County, PA · avg 1967 · 1,294 bridges
Sonoma County, CA · avg 1967 · 609 bridges
Merced County, CA · avg 1967 · 528 bridges

Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.

All 81 Good 5 Fair 67 Poor 9

All bridges (81)

Sort:

Cayey County Bridge Snapshot

Condition distribution

Cayey County's Poor-condition bridges carry 38,200 vehicle crossings a day

80.2% of Cayey County's bridges have passed the 50-year mark

One structure carries 43.1% of the county's Poor-condition bridge traffic

How Cayey County compares with Puerto Rico's closest counties by inventory size

Nationwide counties with similar inventory size or average build year

Similar inventory size

Similar average build year

All bridges (81)

PR 738

PR 184

PR 14 WESTBOUND

PR 7729

PR 743

PR 1

PR 14

PR 743

PR 7729

CARRION MADURO ST.

PR 738

PR 171

PR 1

LOCAL ROAD

PR 1

OFF PR 730 KM 3.9

PR 14

PR 52 NORTHBOUND

PR 52 SOUTHBOUND

OFF PR 1

PR 15

PR 184

FERNANDEZ GARCIA

PR 738

PR 52 NORTHBOUND

PR 52 SOUTHBOUND

PR 1

CENTRAL AVENUE

PR 14 EASTBOUND

PR 738

PR 1

PR 730

PR 52 SOUTHBOUND

PR 52 NORTHBOUND

OFF H. MENDOZA STR

PR 7787

PR 52 SOUTHBOUND

PR 52 NORTHBOUND

PR 52 NORTHBOUND

PR 52 SOUTHBOUND

PR 52 SOUTHBOUND

PR 52 NORTHBOUND

PR 731

PR 52 SOUTHBOUND

PR 52 NORTHBOUND

PR 52 NORTHBOUND

PR 52 SOUTHBOUND

PR 52 NORTHBOUND

PR 52 SOUTHBOUND

PR 52 NORTHBOUND

Related