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 268 bridges classified as structurally deficient in 2016.
  • The deck area of structurally deficient bridges accounts for 9.5 percent of total deck area on all structures.
  • 36 of the structurally deficient bridges are on the Interstate Highway System. A total of 74.8 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.
  • 860 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 $2.7 billion.
  • This compares to 1,718 bridges that needed work in 2016.

County Year Built Daily Crossings Type of Bridge Location
San Juan 1972 246,900 Urban Interstate Pr 18 over Chardon Street
San Juan 1967 246,900 Urban Interstate Pr 18 over Pr 23 (Roosevelt Av.)
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 1967 79,000 Urban other principal arterial Pr 1 Southbound over San Roberto Street
San Juan 1976 79,000 Urban other principal arterial Pr 1 over Pr 52
San Juan 1977 79,000 Urban other principal arterial Pr 1 over Pr 18 (Las Americas Exp)
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
San German 1964 42,600 Rural Interstate Pr 2 over Cain River
Carolina 1960 41,500 Urban other principal arterial Campo Rico Avenue over Creek
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 25,295 381,094
Rural arterial 77 206,630 1,217,374 8 22,530 157,010
Rural minor arterial 152 88,802 1,475,426 20 6,794 212,318
Rural major collector 193 72,437 904,598 24 4,382 114,437
Rural minor collector 143 34,709 427,949 24 4,659 78,451
Rural local road 431 124,199 568,248 72 12,236 59,821
Urban Interstate 247 531,736 14,879,706 18 49,782 1,320,515
Urban freeway/expressway 113 276,065 5,075,863 6 15,625 199,501
Urban other principal arterial 210 301,059 6,489,144 21 33,292 667,747
Urban minor arterial 172 111,034 2,326,347 26 20,583 332,611
Urban collector 169 91,819 1,557,113 23 6,756 233,258
Urban local road 224 99,473 721,637 22 7,555 69,258
Total 2,334 2,213,160 40,652,091 282 209,489 3,826,021
Type of Work Number of Bridges Cost to Repair
(in millions)
Daily Crossings Area of Bridges
(sq. meters)
Bridge replacement 246 $145 1,529,536 46,879
Widening & rehabilitation 252 $134 2,380,706 63,946
Rehabilitation 1,192 $2,262 26,020,018 1,187,424
Deck rehabilitation/replacement 25 $134 561,214 73,308
Other structural work 11 $4 95,090 2,169
Total 1,726 $2,680 30,586,564 1,373,726

About the data:

Data is from the Federal Highway Administration (FHWA) National Bridge Inventory (NBI), downloaded on March 11, 2021. 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 March 11, 2021.

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 2019 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 2019

in the nation in % of structurally deficient bridges

1. West Virginia 21.2%
7. Louisiana 12.7%
8. Puerto Rico 12.1%
9. Michigan 10.8%

38
Compared to 40 in 2019

in the nation in # of structurally deficient bridges

1. Iowa 4,571
37. Idaho 286
38. Puerto Rico 282
39. Maryland 273

9
Compared to 8 in 2019

in the nation in % of structurally deficient bridge deck area

1. Rhode Island 21.0%
8. District of Columbia 10.0%
9. Puerto Rico 10.0%
10. Missouri 9.0%
Full State Ranking

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  • Source: Data is from the Federal Highway Administration (FHWA) National Bridge Inventory (NBI), downloaded on March 11, 2021. Note that specific conditions on bridges may have changed as a result of recent work or updated inspections.

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