County profile · official public datasets

Bayamón County, PR

78 public highway bridges tracked in the FHWA National Bridge Inventory: 14.1% rated Good, 75.6% Fair, 10.3% Poor.

78
Public bridges: 14.1%
Good condition: 10.3%
Poor condition

The verdict

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

Bayamón County posts a better-than-median Poor-condition share among rated counties in the state across rated county bridge inventory.

Top 27%
lowest Poor share in state: 10.3%
Poor-condition share: 78
public highway bridges: 1977
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.

Bayamón County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Bayamón County ranks #20 of 74 Puerto Rico counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 10.3%). Bayamón County, Puerto Rico contains 78 public highway bridges. Roughly 14.1% are rated “Good,” 75.6% “Fair,” and 10.3% “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 Bayamón County

Good condition

14.1%

11 of 78 rated 7-9

Fair condition

75.6%

59 of 78 rated 5-6

Poor condition

10.3%

8 of 78 rated 4 or below

In-state Poor-share rank

#20 of 74

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

Condition distribution

Share of 78 NBI-tracked bridges by lowest applicable component rating.

Good

14.1% (11)

Fair

75.6% (59)

Poor

10.3% (8)

Bayamón County's Poor-condition bridges carry 108,500 vehicle crossings a day

That is 5.9% of the county's reported daily bridge traffic on 10.3% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 13,563 crossings a day against 21,310 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 78 of 78 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

38.5% of Bayamón County's bridges have passed the 50-year mark

30 of the 78 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 14.1% 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 44.7% of the county's Poor-condition bridge traffic

PR 5 over SOFIA STREET, built 2000, carries 48,500 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 8-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 108,500 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1920s

1
1940s

6
1950s

5
1960s

9
1970s

24
1980s

12
1990s

9
2000s

10
2010s

2

What this shows Construction peaked in the 1970s, when 24 of the county's bridges still in the inventory were built, which is 30.8% of those with a recorded year. That cohort is now 45 to 54 years old in the 2024 inventory. Its average build year (1977) matches the Puerto Rico average (1974).

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

The 5 Puerto Rico counties nearest Bayamón County in number of bridges, with their condition splits. Its 10.3% Poor share is the 2nd-lowest of these 6. Its average build year of 1977 against a peer-group mean of 1976 is in line with the group.

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

Bridge inventory size and condition shares for Bayamón 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	81	6.2%	82.7%	11.1%	1967
Bayamón County (this page)	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 Bayamón 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 Bayamón County, both outside Puerto Rico so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside PR (78 bridges here).

Winston County, AL · 78 bridges
Marion County, FL · 78 bridges
Bryan County, GA · 78 bridges
Macon County, GA · 78 bridges

Similar average build year

Nearest mean year-built outside PR (1977 here).

San Diego County, CA · avg 1977 · 1,632 bridges
King County, WA · avg 1977 · 1,238 bridges
Riverside County, CA · avg 1977 · 1,117 bridges
Shelby County, TN · avg 1977 · 1,077 bridges

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

All 78 Good 11 Fair 59 Poor 8

All bridges (78)

Sort:

Bayamón County Bridge Snapshot

Condition distribution

Bayamón County's Poor-condition bridges carry 108,500 vehicle crossings a day

38.5% of Bayamón County's bridges have passed the 50-year mark

One structure carries 44.7% of the county's Poor-condition bridge traffic

How Bayamón 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 (78)

PR 167

PR 5

LOS MILLONES ST.

10 STREET

8 STREET

AV NELSON MARTINEZ

PR 831

PR 5

PR 5

ESPIRITU SANTO ST.

PR 2

MAGNOLIA STREET

PR 5 NORTHBOUND

INT N MARTINEZ AVE

PR 2 WESTBOUND

PR 2

PR 839

10 STREET

PR 5 SOUTHBOUND

PR 855

RAMON RODZ AVENUE

PR 167

BETANCES STREET

PR 174

PR 177 EASTBOUND

PR 2

SIDE PR 2 KM 11.7

BETANCES AVENUE

PR 6

ECUADOR STREET

PR 832

PR 177 WESTBOUND

PR-22(de RampPR-5)

PR 816

PR 29 EASTBOUND

PR 29 WESTBOUND

PR 5

ESPIRITU SANTO ST.

SONIA STREET

SOFIA STREET

PR 855

PR 833

PR 22

1 STREET

RAMP

PR 5

PR 872

PR 5 KM 5.70

13 STREET

PR 29

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