Total bridges
12
Public highway bridges in Trujillo Alto County
County profile · official public datasets
Trujillo Alto County, PR
12 public highway bridges tracked in the FHWA National Bridge Inventory: 16.7% rated Good, 50% Fair, 33.3% Poor.
- 12
- Public bridges
- 16.7%
- Good condition
- 33.3%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Trujillo Alto 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.
- 72nd
- of 74 on Poor share
- 33.3%
- Poor-condition share
- 12
- public highway bridges
- 1980
- 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.
Trujillo Alto County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Trujillo Alto County ranks #72 of 74 Puerto Rico counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 33.3%). Trujillo Alto County, Puerto Rico contains 12 public highway bridges. Roughly 16.7% are rated “Good,” 50% “Fair,” and 33.3% “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.
Good condition
16.7%
2 of 12 rated 7-9
Fair condition
50%
6 of 12 rated 5-6
Poor condition
33.3%
4 of 12 rated 4 or below
In-state Poor-share rank
#72 of 74
Among Puerto Rico counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 12 NBI-tracked bridges by lowest applicable component rating.
Good 16.7% (2)
Fair 50% (6)
Poor 33.3% (4)
Trujillo Alto County's Poor-condition bridges carry 52,200 vehicle crossings a day
That is 46.9% of the county's reported daily bridge traffic on 33.3% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 13,050 crossings a day against 13,000 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 12 of 12 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
33.3% of Trujillo Alto County's bridges have passed the 50-year mark
4 of the 12 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 16.7% 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 81.6% of the county's Poor-condition bridge traffic
PR 181 over GRANDE DE LOIZA RIVER, built 1985, carries 42,600 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 4-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 52,200 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Trujillo Alto County's bridges were built
12 bridges with a recorded construction year, grouped by decade
- 1920s 1
1920–1929
1 bridges
- 1950s
1950–1959
2 bridges
- 1960s 1
1960–1969
1 bridges
- 1980s
1980–1989
2 bridges
- 1990s
1990–1999
2 bridges
- 2000s
2000–2009
4 bridges
What this shows Construction peaked in the 2000s, when 4 of the county's bridges still in the inventory were built, which is 33.3% of those with a recorded year. That cohort is now 15 to 24 years old in the 2024 inventory. Its average build year is 1980, 6 years newer than the Puerto Rico average of 1974.
How Trujillo Alto County compares with Puerto Rico's closest counties by inventory size
The 5 Puerto Rico counties nearest Trujillo Alto County in number of bridges, with their condition splits. Its 33.3% Poor share is the 6th-lowest of these 6. Its average build year of 1980 against a peer-group mean of 1969 is 11 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 |
| Arroyo County | 13 | 23.1% | 61.5% | 15.4% | 1988 |
| Las Marías County | 13 | 15.4% | 76.9% | 7.7% | 1959 |
| Santa Isabel County | 12 | 0% | 75% | 25% | 1970 |
| Trujillo Alto County (this page) | 12 | 16.7% | 50% | 33.3% | 1980 |
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 Trujillo Alto 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 Trujillo Alto County, both outside Puerto Rico so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside PR (12 bridges here).
- Keweenaw County, MI · 12 bridges
- Lincoln County, NV · 12 bridges
- Northampton County, VA · 12 bridges
- Williamsburg city County, VA · 12 bridges
Similar average build year
Nearest mean year-built outside PR (1980 here).
- Tulsa County, OK · avg 1980 · 1,135 bridges
- Miami-Dade County, FL · avg 1980 · 1,057 bridges
- Pulaski County, AR · avg 1980 · 721 bridges
- McLennan County, TX · avg 1980 · 714 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Poor-condition bridges (4)
OFF PR852@K4.2
PoorOver: UNKNOWN CREEK
8 Km SE Trujillo Alto, Trujillo Alto, PR
Built 2003 Load: 9.1 t ADT: 100
PR 181
PoorOver: GRANDE DE LOIZA RIVER
1 KM NORTH TRUJILLO ALTO, Trujillo Alto, PR
Built 1985 Load: 45.4 t ADT: 42,600
PR 175
PoorOver: CREEK
2 KM S W OF TRUJILLO ALTO, Trujillo Alto, PR
Built 1950 Load: 73.3 t ADT: 6,800
CONN. PR181 TO 175
PoorOver: RIO GRANDE DE LOIZA
.42 KM. SE. OF TRUJILLO A, Trujillo Alto, PR
Built 2007 Load: 99.9 t ADT: 2,700
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.