Total bridges
13
Public highway bridges in Arroyo County
County profile · official public datasets
Arroyo County, PR
13 public highway bridges tracked in the FHWA National Bridge Inventory: 23.1% rated Good, 61.5% Fair, 15.4% Poor.
- 13
- Public bridges
- 23.1%
- Good condition
- 15.4%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Arroyo County pairs a higher-than-median Poor-condition share among rated counties in the state with a newer average build year than the state inventory.
- 40th
- of 74 on Poor share
- 15.4%
- Poor-condition share
- 13
- public highway bridges
- 1988
- 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.
Arroyo County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Arroyo County ranks #40 of 74 Puerto Rico counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 15.4%). Arroyo County, Puerto Rico contains 13 public highway bridges. Roughly 23.1% are rated “Good,” 61.5% “Fair,” and 15.4% “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
23.1%
3 of 13 rated 7-9
Fair condition
61.5%
8 of 13 rated 5-6
Poor condition
15.4%
2 of 13 rated 4 or below
In-state Poor-share rank
#40 of 74
Among Puerto Rico counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 13 NBI-tracked bridges by lowest applicable component rating.
Good 23.1% (3)
Fair 61.5% (8)
Poor 15.4% (2)
Arroyo County's Poor-condition bridges carry 1,400 vehicle crossings a day
That is 1.3% of the county's reported daily bridge traffic on 15.4% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 700 crossings a day against 14,933 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 13 of 13 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
23.1% of Arroyo County's bridges have passed the 50-year mark
3 of the 13 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 23.1% 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 71.4% of the county's Poor-condition bridge traffic
PR 753 over NIGUAS RIVER, built 1997, carries 1,000 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 2-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 1,400 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Arroyo County's bridges were built
13 bridges with a recorded construction year, grouped by decade
- 1940s 1
1940–1949
1 bridges
- 1950s
1950–1959
2 bridges
- 1980s
1980–1989
2 bridges
- 1990s
1990–1999
2 bridges
- 2000s
2000–2009
5 bridges
- 2010s 1
2010–2019
1 bridges
What this shows Construction peaked in the 2000s, when 5 of the county's bridges still in the inventory were built, which is 38.5% of those with a recorded year. That cohort is now 15 to 24 years old in the 2024 inventory. Its average build year is 1988, 14 years newer than the Puerto Rico average of 1974.
How Arroyo County compares with Puerto Rico's closest counties by inventory size
The 5 Puerto Rico counties nearest Arroyo County in number of bridges, with their condition splits. Its 15.4% Poor share is the 3rd-lowest of these 6. Its average build year of 1988 against a peer-group mean of 1962 is 26 years newer.
Showing the 5 closest of 73 Puerto Rico counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Aguadilla County | 13 | 15.4% | 53.8% | 30.8% | 1963 |
| Aguas Buenas County | 13 | 15.4% | 84.6% | 0% | 1966 |
| Las Marías County | 13 | 15.4% | 76.9% | 7.7% | 1959 |
| Maricao County | 13 | 7.7% | 69.2% | 23.1% | 1952 |
| Moca County | 13 | 15.4% | 61.5% | 23.1% | 1969 |
| Arroyo County (this page) | 13 | 23.1% | 61.5% | 15.4% | 1988 |
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 Arroyo 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 Arroyo County, both outside Puerto Rico so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside PR (13 bridges here).
- Bethel County, AK · 13 bridges
- San Juan County, CO · 13 bridges
- Perkins County, NE · 13 bridges
- Wheeler County, NE · 13 bridges
Similar average build year
Nearest mean year-built outside PR (1988 here).
- Travis County, TX · avg 1988 · 1,544 bridges
- Grant County, OK · avg 1988 · 476 bridges
- Loudoun County, VA · avg 1988 · 442 bridges
- Licking County, OH · avg 1988 · 439 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Good-condition bridges (3)
PR 178
GoodOver: NIGUA RIVER
0.8 KM INT PR 3 & PR, Arroyo, PR
Built 1988 Load: 39.0 t ADT: 7,500
PR 3
GoodOver: YAUREL CREEK
4 KM. SW. OF PATILLAS, Arroyo, PR
Built 2003 Load: 56.8 t ADT: 19,800
PR 54
GoodOver: PATILLAS CHANNEL
1 KM SOUTH OF GUAYAMA, Arroyo, PR
Built 2000 Load: 67.0 t ADT: 17,500
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.