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.

Clear

Bridge	State	Scour Status	Condition	Year Built	ADT
GUAYANILLA RIVER L ROAD	Puerto Rico	Scour Critical — Countermeasures Installed	Poor	1970	18,450
ACHIOTE CREEK	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1967	18,400
GRANDE DE LOIZA RIVER	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1973	18,200
CAÑAS RIVER	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1970	17,900
CA¥AS RIVER	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1970	17,900
MAJADAS RIVER & PR 7	Puerto Rico	Scour Critical — Countermeasures Installed	Poor	1972	17,450
QUEBRADILLA CREEK	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1964	17,100
GRANDE DE LOIZA RIVER	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1980	16,700
WATERWAY	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1968	16,650
S. DOMINGO CREEK ROAD	Puerto Rico	Scour Critical — Countermeasures Installed	Good	1974	16,450
CAMARONES CREEK	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1921	16,200
GRANDE DE MANATI RIVER	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1975	15,800
Guanajibo River	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1998	15,600
GURABO RIVER KM 20.41	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1955	14,700
CATAÑO CREEK	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1928	14,700
MERCADO CREEK	Puerto Rico	Scour Critical — Countermeasures Installed	Poor	1952	14,600
LA PLATA RIVER	Puerto Rico	Scour Critical — Countermeasures Installed	Poor	1979	14,400
CAGUITAS RIVER	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1999	14,300
GUATEMALA RIVER	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1940	14,200
GUATEMALA RIVER	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1917	14,200
CHANNEL	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1963	14,100
GUADIANA RIVER	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1998	14,000
TANAMA RIVER	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1978	13,800
MINILLAS RIVER	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1969	13,400
INFIERNO CREEK	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1925	13,400
MAMBICHE CREEK	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1957	13,400
JAGUEYES CREEK	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1955	12,800
JAGUEYES CREEK	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1967	12,800
VALENCIANO RIVER	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1947	12,700
GUANAJIBO RIVER	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1989	12,700
BAYAMON RIVER	Puerto Rico	Scour Critical — Countermeasures Installed	Poor	1955	12,500
CULEBRINAS RIVER	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1979	12,000
BARRANQUITAS RIVER	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1908	11,900
CREEK	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1945	11,900
CARICABOA RIVER	Puerto Rico	Scour Critical — Countermeasures Installed	Poor	1937	11,700
CORTADORA CREEK	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1918	11,300
GUANAJIBO RIVER	Puerto Rico	Scour Critical — Countermeasures Installed	Poor	1969	11,300
DESCALABRADO RIVER	Puerto Rico	Scour Critical — Countermeasures Installed	Poor	1921	11,200
PIEDRAS RIVER	Puerto Rico	Scour Critical — Countermeasures Installed	Poor	1965	11,200
UNKNOWN WATERWAY	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1994	11,200
CA%AS RIVER	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1925	10,900
SECA CREEK	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1968	10,900
CUBUY RIVER	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1975	10,700
MATON RIVER	Puerto Rico	Scour Critical — Countermeasures Installed	Poor	1886	10,700
CUBUY RIVER	Puerto Rico	Scour Critical — Countermeasures Installed	Poor	1970	10,700
BUCARABONES RIVER	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1970	10,700
GRANDE DE MANATI RIVER	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1968	10,600
GRANDE DE MANATI RIVER	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1968	10,600
JANER CREEK	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1924	10,600
DOS BOCAS CREEK	Puerto Rico	Scour Critical — Countermeasures Installed	Fair	1980	10,400

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.

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