Scour Critical Bridges in Puerto Rico
496 bridges in Puerto Rico at risk from water erosion around foundations.
Scour Critical Bridges
Scour is the erosion of soil and rock around a bridge's foundation caused by moving water. When foundations are exposed or undermined, a bridge can collapse even if its deck and superstructure are in good condition. Scour is the leading cause of bridge failures in the US. These 496 bridges in Puerto Rico have been identified as vulnerable to scour damage.
| Bridge | State | Scour Status | Condition | Year Built | ADT |
|---|---|---|---|---|---|
| JACAGUAS RIVER | Puerto Rico | Scour Critical — Countermeasures Installed | Poor | 1966 | 300 |
| UNKNOWN CREEK | Puerto Rico | Scour Critical — Countermeasures Installed | Fair | 1992 | 300 |
| MAUNABO RIVER | Puerto Rico | Scour Critical — Countermeasures Installed | Fair | 2000 | 300 |
| WATERWAY | Puerto Rico | Scour Critical — Countermeasures Installed | Fair | 2007 | 300 |
| GRANDE DE ARECIBO RIVER | Puerto Rico | Scour Critical — Countermeasures Installed | Poor | 1988 | 259 |
| GRANDE DE ARECIBO RIVER | Puerto Rico | Scour Critical — Countermeasures Installed | Poor | 1967 | 250 |
| GRANDE DE ARECIBO RIVER | Puerto Rico | Scour Critical — Countermeasures Installed | Poor | 1973 | 250 |
| DUEY RIVER | Puerto Rico | Scour Critical — Countermeasures Installed | Poor | 1976 | 250 |
| Canal Creek | Puerto Rico | Scour Critical — Countermeasures Installed | Poor | 1970 | 250 |
| GRANDE DE ARECIBO RIVER | Puerto Rico | Scour Critical — Countermeasures Installed | Good | 1967 | 250 |
| GRANDE DE ARECIBO RIVER | Puerto Rico | Scour Critical — Countermeasures Installed | Good | 1973 | 250 |
| CREEK | Puerto Rico | Scour Critical — Countermeasures Installed | Fair | 1926 | 200 |
| RALAT CREEK | Puerto Rico | Scour Critical — Countermeasures Installed | Fair | 1926 | 200 |
| MATRULLAS RIVER | Puerto Rico | Scour Critical — Countermeasures Installed | Fair | 1959 | 200 |
| PITAHAYA CREEK | Puerto Rico | Scour Critical — Countermeasures Installed | Poor | 1939 | 200 |
| SABANA RIVER | Puerto Rico | Scour Critical — Countermeasures Installed | Fair | 1958 | 200 |
| TOA VACA RIVER | Puerto Rico | Scour Critical — Countermeasures Installed | Fair | 1964 | 200 |
| LOS POLLOS CREEK | Puerto Rico | Scour Critical — Countermeasures Installed | Fair | 1938 | 200 |
| CHIQUITO RIVER | Puerto Rico | Scour Critical — Countermeasures Installed | Fair | 1940 | 200 |
| CREEK | Puerto Rico | Scour Critical — Countermeasures Installed | Fair | 1930 | 200 |
| DISCHARGE CHANNEL AEE | Puerto Rico | Scour Critical — Countermeasures Installed | Poor | 1962 | 200 |
| AGUAS CLARAS CREEK | Puerto Rico | Scour Critical — Countermeasures Installed | Fair | 1968 | 200 |
| TALANTE CREEK | Puerto Rico | Scour Critical — Countermeasures Installed | Poor | 1976 | 200 |
| CHIQUITO RIVER | Puerto Rico | Scour Critical — Countermeasures Installed | Poor | 1981 | 200 |
| GUAYANILLA RIVER | Puerto Rico | Scour Critical — Countermeasures Installed | Fair | 1987 | 200 |
| WATERWAY | Puerto Rico | Scour Critical — Countermeasures Installed | Good | 2000 | 200 |
| COAMO RIVER | Puerto Rico | Scour Critical — Countermeasures Installed | Good | 1951 | 200 |
| CAPELES CREEK | Puerto Rico | Scour Critical — Countermeasures Installed | Poor | 1991 | 150 |
| GRANDE CREEK | Puerto Rico | Scour Critical — Countermeasures Installed | Poor | 1977 | 150 |
| JACABOA RIVER | Puerto Rico | Scour Critical — Countermeasures Installed | Fair | 1982 | 150 |
| YAUCO RIVER | Puerto Rico | Scour Critical — Countermeasures Installed | Poor | 1950 | 100 |
| GUANICO RIVER | Puerto Rico | Scour Critical — Countermeasures Installed | Fair | 1954 | 100 |
| GUAYO RIVER | Puerto Rico | Scour Critical — Countermeasures Installed | Fair | 1966 | 100 |
| CUBUY RIVER | Puerto Rico | Scour Critical — Countermeasures Installed | Poor | 1975 | 100 |
| CIALITOS RIVER | Puerto Rico | Scour Critical — Countermeasures Installed | Fair | 1980 | 100 |
| GUAONICA RIVER | Puerto Rico | Scour Critical — Countermeasures Installed | Poor | 1972 | 100 |
| YAGRUMA CREEK | Puerto Rico | Scour Critical — Countermeasures Installed | Fair | 1981 | 100 |
| DE CACAOS CREEK | Puerto Rico | Scour Critical — Countermeasures Installed | Poor | 1964 | 100 |
| NARAJOS CREEK | Puerto Rico | Scour Critical — Countermeasures Installed | Good | 1997 | 100 |
| UNKNOWN CREEK | Puerto Rico | Scour Critical — Countermeasures Installed | Good | 2003 | 100 |
| HONDA CREEK | Puerto Rico | Scour Critical — Countermeasures Installed | Fair | 2003 | 100 |
| GRANDE CREEK | Puerto Rico | Scour Critical — Countermeasures Installed | Fair | 2003 | 100 |
| RIO DES LOS NEGROS | Puerto Rico | Scour Critical — Countermeasures Installed | Good | 2018 | 100 |
| GRANDE DE ARECIBO RIVER | Puerto Rico | Scour Critical — Countermeasures Installed | Fair | 1947 | 100 |
| YAUCO RIVER | Puerto Rico | Scour Critical — Countermeasures Installed | Good | 1950 | 100 |
| DUEY RIVER | Puerto Rico | Scour Critical — Countermeasures Installed | Fair | 1978 | 100 |
Scour Critical Rating Codes
| Code 2 — Unaddressed | Bridge is scour critical with no countermeasures installed. The foundation is vulnerable and no protective action has been taken. |
| Code 3 — Countermeasures Installed | Protective measures (riprap, sheet piling, etc.) have been installed to reduce scour risk, but the bridge remains classified as scour critical. |
| Code 6 — Countermeasures Ineffective | Protective measures were installed but have been assessed as ineffective. The bridge requires re-evaluation and additional action. |
About Scour Critical Bridges
Scour critical bridges have been identified through underwater inspection or analysis as having foundations that are unstable or could become unstable during flood conditions. FHWA requires action plans for all scour critical bridges. Famous scour failures include the 1987 Schoharie Creek Bridge collapse in New York.