Total bridges
20
Public highway bridges in Luquillo County
County profile · official public datasets
Luquillo County, PR
20 public highway bridges tracked in the FHWA National Bridge Inventory: 0% rated Good, 85% Fair, 15% Poor.
- 20
- Public bridges
- 0%
- Good condition
- 15%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Luquillo County pairs a higher-than-median Poor-condition share among rated counties in the state with an older average build year than the state inventory.
- 38th
- of 74 on Poor share
- 15%
- Poor-condition share
- 20
- public highway bridges
- 1960
- 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.
Luquillo County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Luquillo County ranks #38 of 74 Puerto Rico counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 15%). Luquillo County, Puerto Rico contains 20 public highway bridges. Roughly 0% are rated “Good,” 85% “Fair,” and 15% “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
0%
0 of 20 rated 7-9
Fair condition
85%
17 of 20 rated 5-6
Poor condition
15%
3 of 20 rated 4 or below
In-state Poor-share rank
#38 of 74
Among Puerto Rico counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 20 NBI-tracked bridges by lowest applicable component rating.
Good 0% (0)
Fair 85% (17)
Poor 15% (3)
Luquillo County's Poor-condition bridges carry 6,200 vehicle crossings a day
That is 1.9% of the county's reported daily bridge traffic on 15% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. 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 20 of 20 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
55% of Luquillo County's bridges have passed the 50-year mark
11 of the 20 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 0% 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 51.6% of the county's Poor-condition bridge traffic
PR 193 over MATA DE PLATANO CREEK, built 1981, carries 3,200 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 3-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 6,200 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Luquillo County's bridges were built
20 bridges with a recorded construction year, grouped by decade
- 1910s 3
1910–1919
3 bridges
- 1930s 1
1930–1939
1 bridges
- 1940s 2
1940–1949
2 bridges
- 1950s
1950–1959
4 bridges
- 1960s 1
1960–1969
1 bridges
- 1970s 1
1970–1979
1 bridges
- 1980s
1980–1989
8 bridges
What this shows Construction peaked in the 1980s, when 8 of the county's bridges still in the inventory were built, which is 40% of those with a recorded year. That cohort is now 35 to 44 years old in the 2024 inventory. Its average build year is 1960, 14 years older than the Puerto Rico average of 1974.
How Luquillo County compares with Puerto Rico's closest counties by inventory size
The 5 Puerto Rico counties nearest Luquillo County in number of bridges, with their condition splits. Its 15% Poor share is the 4th-lowest of these 6. Its average build year of 1960 against a peer-group mean of 1972 is 12 years older.
Showing the 5 closest of 73 Puerto Rico counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Cabo Rojo County | 21 | 28.6% | 42.9% | 28.6% | 1959 |
| Cidra County | 21 | 14.3% | 66.7% | 19% | 1969 |
| Dorado County | 20 | 30% | 70% | 0% | 1982 |
| Fajardo County | 20 | 30% | 60% | 10% | 1978 |
| Naranjito County | 20 | 15% | 75% | 10% | 1971 |
| Luquillo County (this page) | 20 | 0% | 85% | 15% | 1960 |
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 Luquillo 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 Luquillo County, both outside Puerto Rico so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside PR (20 bridges here).
- Haines County, AK · 20 bridges
- Custer County, CO · 20 bridges
- Quitman County, GA · 20 bridges
- Issaquena County, MS · 20 bridges
Similar average build year
Nearest mean year-built outside PR (1960 here).
- Windham County, VT · avg 1960 · 337 bridges
- Plymouth County, MA · avg 1960 · 287 bridges
- Cheshire County, NH · avg 1960 · 192 bridges
- Washington County, NY · avg 1960 · 189 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Poor-condition bridges (3)
PR 988
PoorOver: MAMEYES RIVER
8 KM S W OF LUQUILLO, Luquillo, PR
Built 1966 Load: 23.4 t ADT: 2,800
PR 193
PoorOver: MATA DE PLATANO CREEK
0.6 KM WEST OF LUQUILLO, Luquillo, PR
Built 1981 Load: 34.0 t ADT: 3,200
PR 988
PoorOver: PITAHAYA CREEK
3 KM SOUTH OF LUQUILLO, Luquillo, PR
Built 1939 Load: 58.2 t ADT: 200
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.