County profile · official public datasets

Mayagüez County, PR

45 public highway bridges tracked in the FHWA National Bridge Inventory: 20% rated Good, 68.9% Fair, 11.1% Poor.

45
Public bridges
20%
Good condition
11.1%
Poor condition

The verdict

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

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

Top 34%
lowest Poor share in state
11.1%
Poor-condition share
45
public highway bridges
1971
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.

Mayagüez County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Mayagüez County ranks #25 of 74 Puerto Rico counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 11.1%). Mayagüez County, Puerto Rico contains 45 public highway bridges. Roughly 20% are rated “Good,” 68.9% “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.

Total bridges

45

Public highway bridges in Mayagüez County

Good condition

20%

9 of 45 rated 7-9

Fair condition

68.9%

31 of 45 rated 5-6

Poor condition

11.1%

5 of 45 rated 4 or below

In-state Poor-share rank

#25 of 74

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

Condition distribution

Share of 45 NBI-tracked bridges by lowest applicable component rating.

Good
20% (9)
Fair
68.9% (31)
Poor
11.1% (5)

Mayagüez County's Poor-condition bridges carry 63,150 vehicle crossings a day

That is 8.5% 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 12,630 crossings a day against 23,147 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 45 of 45 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

55.6% of Mayagüez County's bridges have passed the 50-year mark

25 of the 45 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 20% 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 72.5% of the county's Poor-condition bridge traffic

PR 2 over YAGUEZ RIVER & URBAN, built 1961, carries 45,800 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 5-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 63,150 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Mayagüez County's bridges were built

45 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1970s, when 12 of the county's bridges still in the inventory were built, which is 26.7% of those with a recorded year. That cohort is now 45 to 54 years old in the 2024 inventory. Its average build year (1971) matches the Puerto Rico average (1974).

Source FHWA National Bridge Inventory (year built) As of 2024 NBI release

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

The 5 Puerto Rico counties nearest Mayagüez County in number of bridges, with their condition splits. Its 11.1% Poor share is the 1st-lowest of these 6. Its average build year of 1971 against a peer-group mean of 1976 is 5 years older.

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

Bridge inventory size and condition shares for Mayagüez County and the 5 Puerto Rico counties closest to it in inventory size
County Bridges Poor
Río Grande County 47 12.8%
San Germán County 45 20%
Mayagüez County (this page) 45 11.1%
Yabucoa County 41 22%
Salinas County 40 20%
Yauco County 40 15%

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 Mayagüez 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 Mayagüez County, both outside Puerto Rico so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside PR (45 bridges here).

Similar average build year

Nearest mean year-built outside PR (1971 here).

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

All 45 Good 9 Fair 31 Poor 5

Fair-condition bridges (31)

PR 2

Fair

Over: DE ORO CREEK

AT MAYAGUEZ NORTH END, Mayagüez, PR

Built 1961 Load: 5.3 t ADT: 49,500

PR 106

Fair

Over: YAGUEZ RIVER

EAST OF MAYAGUEZ, Mayagüez, PR

Built 1952 Load: 8.8 t ADT: 11,100

PR 380

Fair

Over: CAMINO DEL GUAYO CREEK

3 KM S E OF MAYAGUEZ, Mayagüez, PR

Built 2005 Load: 11.0 t ADT: 2,900

CAMINO CHARLUISANT

Fair

Over: RIO CANAS (Stream)

CAMINO CHARLUISANT PR-106, Mayagüez, PR

Built 1980 Load: 13.6 t ADT: 100

OFF PR 348

Fair

Over: GRANDE CREEK

3 KM. EAST OF MAYAGUEZ, Mayagüez, PR

Built 1984 Load: 14.2 t ADT: 8,500

PR 102

Fair

Over: YAGUEZ RIVER

AT MAYAGUEZ CITY, Mayagüez, PR

Built 1971 Load: 16.3 t ADT: 16,900

PR 2 RAMAL

Fair

Over: LA SALUD CREEK

C. POST/ SEC DEPORTES MAY, Mayagüez, PR

Built 1949 Load: 18.9 t ADT: 13,700

PR 352

Fair

Over: CA%AS RIVER

4 MILES N E OF MAYAGUEZ, Mayagüez, PR

Built 1961 Load: 20.7 t ADT: 500

PR 114

Fair

Over: WATERWAY

5 KM SOUTH OF MAYAGUEZ, Mayagüez, PR

Built 1962 Load: 23.2 t ADT: 18,417

PR 102 AT KM 5.7

Fair

Over: W Way Corazones River

3.65 km S.West May Town, Mayagüez, PR

Built 2015 Load: 23.7 t ADT: 10,977

PR 105

Fair

Over: CARICOSA CREEK

3 KM EAST OF MAYAGUEZ, Mayagüez, PR

Built 1921 Load: 24.0 t ADT: 2,600

PR 102

Fair

Over: MAJAGUAL CHANNEL

ON MAYAGUEZ BAY, Mayagüez, PR

Built 1952 Load: 24.2 t ADT: 10,500

PR 348

Fair

Over: GRANDE CREEK

1 KM S E OF MAYAGUEZ, Mayagüez, PR

Built 1970 Load: 29.1 t ADT: 8,500

PR 380

Fair

Over: HONDO RIVER

4 KM S E OF MAYAGUEZ, Mayagüez, PR

Built 1988 Load: 29.1 t ADT: 2,900

PR 3342

Fair

Over: BOCA MORENA CHANNEL

WEST OF MAYAGUEZ CITY, Mayagüez, PR

Built 1974 Load: 31.3 t ADT: 6,500

OFF PR 348

Fair

Over: GRANDE CREEK

3.1 KMS. SE. OF MAYAGUEZ, Mayagüez, PR

Built 1996 Load: 31.6 t ADT: 100

PR 2

Fair

Over: MAJAGUAL CHANNEL

SOUTH END OF MAYAGUEZ, Mayagüez, PR

Built 1958 Load: 31.7 t ADT: 57,700

ROAD IN CAAM CAMPU

Fair

Over: WATERWAY

IN CAAM CAMPUS, Mayagüez, PR

Built 1975 Load: 32.2 t ADT: 3,000

PR 102

Fair

Over: BOCA MORENA CREEK

2 KM N E OF MAYAGUEZ, Mayagüez, PR

Built 1974 Load: 34.3 t ADT: 15,400

PR 108

Fair

Over: YAGUEZ RIVER

LUNA STREET (PR 108), Mayagüez, PR

Built 1971 Load: 34.6 t ADT: 11,800

PR 102

Fair

Over: BOCA MORENA CREEK

2 KM N W OF MAYAGUEZ, Mayagüez, PR

Built 1974 Load: 35.2 t ADT: 15,400

PR 106

Fair

Over: LA CUCHILLA CREEK

0.9 KM EAST OF INT PR 2, Mayagüez, PR

Built 1905 Load: 35.4 t ADT: 11,800

PR 2R

Fair

Over: YAGUEZ RIVER

AT FRONT OF CAAM ENTRANCE, Mayagüez, PR

Built 1971 Load: 41.4 t ADT: 23,600

PR 64

Fair

Over: ALGARROBO CREEK

2.8 KM WEST OF MAYAGUEZ, Mayagüez, PR

Built 1971 Load: 41.7 t ADT: 11,700

PR 108

Fair

Over: CA%AS RIVER

5 KM N E OF MAYAGUEZ, Mayagüez, PR

Built 1975 Load: 43.6 t ADT: 2,600

PR 341

Fair

Over: BOQUILLA CHANNEL

5 MILES NORTH OF MAYAGUEZ, Mayagüez, PR

Built 1994 Load: 46.8 t ADT: 4,197

PR 2

Fair

Over: SABALOS CHANNEL

0.2 KMS. INT. PR 114, Mayagüez, PR

Built 1997 Load: 47.3 t ADT: 64,800

RAMP PR 2 -MVigoST

Fair

Over: YAGUEZ RIVER

0.5 KM WEST MAYAGUEZ, Mayagüez, PR

Built 1999 Load: 49.2 t ADT: 9,200

PR 348

Fair

Over: ROSARIO RIVER

AT INT OF PR 348 & PR, Mayagüez, PR

Built 1978 Load: 53.5 t ADT: 3,500

PR 2

Fair

Over: SABALO CREEK

0.9 KM NORTH OF MAYAGUEZ, Mayagüez, PR

Built 1958 Load: 55.8 t ADT: 56,100

PR 102

Fair

Over: Yaguez River & San P

1.7 KMS NW OF MAYAGUEZ, Mayagüez, PR

Built 2010 Load: 68.8 t ADT: 19,180

Read our methodology - how this data is sourced, computed, and verified.

Related

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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.