Total bridges
81
Public highway bridges in Cayey County
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.
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.
When Cayey County's bridges were built
81 bridges with a recorded construction year, grouped by decade
- pre-1900 3
Built before 1900
3 bridges
- 1900s 2
1900–1909
2 bridges
- 1920s 3
1920–1929
3 bridges
- 1930s 2
1930–1939
2 bridges
- 1940s 5
1940–1949
5 bridges
- 1950s 3
1950–1959
3 bridges
- 1960s 8
1960–1969
8 bridges
- 1970s
1970–1979
42 bridges
- 1980s 1
1980–1989
1 bridges
- 1990s 5
1990–1999
5 bridges
- 2000s 5
2000–2009
5 bridges
- 2010s 1
2010–2019
1 bridges
- 2020s 1
2020–2029
1 bridges
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.
| 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.
Poor-condition bridges (9)
PR 14
PoorOver: MATON RIVER
7 KM NORTH WEST OF CAYEY, Cayey, PR
Built 1886 Load: 3.1 t ADT: 10,700
PR 7736
PoorOver: PLATA CREEK
5.5 KM NORTHEAST OF CAYEY, Cayey, PR
Built 2003 Load: 9.5 t ADT: 150
PR 1
PoorOver: MATON RIVER
2.5 KM SOUTHWEST OF CAYEY, Cayey, PR
Built 1927 Load: 9.7 t ADT: 8,300
RURAL LOCAL ROAD
PoorOver: CHIQUITO DE MATON RIVER
5.5 KM NORTHWEST OF CAYEY, Cayey, PR
Built 1976 Load: 11.8 t ADT: 600
PR 7731
PoorOver: LA PLATA RIVER
2.6 KM NORTH OF CAYEY, Cayey, PR
Built 1935 Load: 17.3 t ADT: 500
PR 730
PoorOver: MATON ARRIBA CREEK
4 KM NORTH WEST OF CAYEY, Cayey, PR
Built 1991 Load: 20.4 t ADT: 600
PFF PR 730 KM 3.9
PoorOver: MATON RIVER
4 KM NORTHWEST OF CAYEY, Cayey, PR
Built 1990 Load: 26.8 t ADT: 600
PR 52 SOUTHBOUND
PoorOver: DEPRESSION
6.1 KM SOUTHWEST OF CAYEY, Cayey, PR
Built 1974 Load: 46.2 t ADT: 16,450
PR 708
PoorOver: CREEK
5.1 KM N W OF INT PR 15, Cayey, PR
Built 1965 Load: 99.9 t ADT: 300
Read our methodology - how this data is sourced, computed, and verified.
Related
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges
Every figure on PlainBridges 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. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.