National Bridge Inventory: Puerto Rico



  • Of the 2,334 bridges in the Commonwealth, 282, or 12.1 percent, are classified as structurally deficient. This means one of the key elements is in poor or worse condition.
  • This is up from 271 bridges classified as structurally deficient in 2017.
  • The deck area of structurally deficient bridges accounts for 8.9 percent of total deck area on all structures.
  • 36 of the structurally deficient bridges are on the Interstate Highway System. A total of 75.2 percent of the structurally deficient bridges are not on the National Highway System, which includes the Interstate and other key roads linking major airports, ports, rail and truck terminals.
  • 865 bridges are posted for load, which may restrict the size and weight of vehicles crossing the structure.
  • The state has identified needed repairs on 1,726 bridges at an estimated cost of $2.5 billion.
  • This compares to 1,725 bridges that needed work in 2017.

County Year Built Daily Crossings Type of Bridge Location
San Juan 1967 246,900 Urban Interstate Pr 18 over Pr 23 (Roosevelt Av.)
San Juan 1972 246,900 Urban Interstate Pr 18 over Chardon Street
Guaynabo 1971 195,994 Urban Interstate Pr 22 over Pr 28
San Juan 1980 91,950 Urban Interstate Pr 22 Southbound over Martin Pe¥A Channel
San Juan 1979 83,247 Urban Interstate Pr 52 Southbound over Pr 177
San Juan 1967 79,000 Urban other principal arterial Pr 1 Northbound over San Roberto Street
San Juan 1977 79,000 Urban other principal arterial Pr 1 over Pr 18 (Las Americas Exp)
San Juan 1976 79,000 Urban other principal arterial Pr 1 over Pr 52
San Juan 1967 79,000 Urban other principal arterial Pr 1 Southbound over San Roberto Street
Las Piedras 1965 66,300 Rural arterial Pr 30 Westbound over Humacao River
Ponce 1995 56,400 Urban Interstate Pr 52 over Dirt Road
Ponce 1995 56,400 Urban Interstate Pr 52 over Dirt Road
Barceloneta 1992 55,773 Urban Interstate Pr 22 over Pajuil Street
Carolina 1965 49,500 Urban Interstate Pr 26 Westbound over Suarez Channel & Pr 190
Rio Grande 1940 48,000 Urban minor arterial Pr 187 over LA Vega Creek
Guaynabo 1972 47,018 Urban freeway/expressway Pr 165 over Pr 24
Santa Isabel 1972 44,612 Rural Interstate Pr 52 Northbound over Coamo River & ; Pr 545
San German 1964 42,600 Rural Interstate Pr 2 over Cain River
San Juan 1953 39,700 Urban other principal arterial Pr 176 over Piedras River
San Juan 1966 38,250 Urban other principal arterial Ramp Pr 2 to Pr 1 over Pr 2
Bayamon 1971 35,056 Urban other principal arterial Pr 29 Eastbound over Hondo River
Ponce 1990 33,150 Urban Interstate Pr 52 Northbound over Pr 1
Ponce 1971 33,150 Urban Interstate Pr 52 Southbound over Dirt Road
Humacao 1990 32,700 Urban freeway/expressway Pr 60 over Local Road & Mabu Creek
Las Piedras 1964 32,036 Rural arterial Pr 30 Eastbound over Humacao River
Type of Bridge Number of Bridges Area of All Bridges
(sq. meters)
Daily Crossings on All Bridges Number of Structurally Deficient Bridges Area of Structurally Deficient Bridges
(sq. meters)
Daily Crossings on Structurally Deficient Bridges
Rural Interstate 203 275,198 5,008,686 18 25,474 398,106
Rural arterial 77 206,630 1,217,374 8 7,405 158,268
Rural minor arterial 152 88,802 1,475,426 20 6,803 204,023
Rural major collector 193 72,437 904,598 25 4,482 120,537
Rural minor collector 142 34,656 427,849 23 4,589 72,251
Rural local road 432 124,253 564,858 72 13,189 59,171
Urban Interstate 247 531,736 14,879,706 18 49,782 1,320,515
Urban freeway/expressway 114 278,359 5,107,363 6 15,625 199,501
Urban other principal arterial 210 298,816 6,461,144 20 33,170 626,247
Urban minor arterial 173 111,224 2,329,047 27 20,773 335,311
Urban collector 168 91,629 1,554,413 22 6,205 236,153
Urban local road 223 99,422 716,637 23 8,526 81,061
Total 2,334 2,213,162 40,647,101 282 196,023 3,811,144
Type of Work Number of Bridges Cost to Repair
(in millions)
Daily Crossings Area of Bridges
(sq. meters)
Bridge replacement 246 $131 1,529,536 46,879
Widening & rehabilitation 252 $121 2,380,706 63,946
Rehabilitation 1,192 $2,074 26,020,018 1,187,424
Deck rehabilitation/replacement 25 $124 561,214 73,308
Other structural work 11 $4 95,090 2,169
Total 1,726 $2,453 30,586,564 1,373,726

About the data:

Data is from the Federal Highway Administration (FHWA) National Bridge Inventory (NBI), downloaded on January 3, 2022. Note that specific conditions on bridges may have changed as a result of recent work or updated inspections. Cost estimates were downloaded by ARTBA on January 3, 2022.

Effective January 1, 2018, FHWA changed the definition of structurally deficient as part of the final rule on highway and bridge performance measures, published May 20, 2017 pursuant to the 2012 federal aid highway bill Moving Ahead for Progress in the 21st Century Act (MAP-21). Two measures that were previously used to classify bridges as structurally deficient are no longer used. This includes bridges where the overall structural evaluation was rated in poor or worse condition, or where the adequacy of waterway openings was insufficient.

The new definition limits the classification to bridges where one of the key structural elements—the deck, superstructure, substructure or culverts, are rated in poor or worse condition. During inspection, the conditions of a variety of bridge elements are rated on a scale of 0 (failed condition) to 9 (excellent condition). A rating of 4 is considered “poor” condition.

Cost estimates have been derived by ARTBA, based on 2020 average bridge replacement costs for structures on and off the National Highway System, published by FHWA. Bridge rehabilitation costs are estimated to be 68 percent of replacement costs. A bridge is considered to need repair if the structure has identified repairs as part of the NBI, a repair cost estimate is supplied by the bridge owner or the bridge is classified as structurally deficient. Please note that for a few states, the number of bridges needing to be repaired can vary significantly from year to year, and reflects the data entered by the state.

Bridges are classified by FHWA into types based on the functional classification of the roadway on the bridge. Interstates comprise routes officially designated by the Secretary of Transportation. Other principal arterials serve major centers of urban areas or provide mobility through rural areas. Freeways and expressways have directional lanes generally separated by a physical barrier, and access/egress points generally limited to on- and off-ramps. Minor arterials serve smaller areas and are used for trips of moderate length. Collectors funnel traffic from local roads to the arterial network; major collectors have higher speed limits and traffic volumes and are longer in length and spaced at greater intervals, while minor collectors are shorter and provide service to smaller communities. Local roads do not carry through traffic and are intended for short distance travel.

8
Compared to 8 in 2020

in the nation in % of structurally deficient bridges

1. West Virginia 20.4%
7. Maine 12.6%
8. Puerto Rico 12.1%
9. North Dakota 11.2%

37
Compared to 40 in 2020

in the nation in # of structurally deficient bridges

1. Iowa 4,504
36. Maine 314
37. Puerto Rico 282
38. Maryland 253

9
Compared to 8 in 2020

in the nation in % of structurally deficient bridge deck area

1. Rhode Island 19.5%
8. Maine 8.9%
9. Puerto Rico 8.9%
10. Wyoming 8.6%
Full State Ranking

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  • Source: Data is from the Federal Highway Administration (FHWA) National Bridge Inventory (NBI), downloaded on January 3, 2022. Note that specific conditions on bridges may have changed as a result of recent work or updated inspections.

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