Scour Critical Bridges in New Mexico

127 bridges in New Mexico 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 127 bridges in New Mexico have been identified as vulnerable to scour damage.

Clear
Bridge State Scour Status Condition Year Built ADT
Arroyo Hondo New Mexico Scour Critical — Countermeasures Installed Fair 1937 112
RAYADO CREEK New Mexico Scour Critical — Countermeasures Installed Poor 1965 103
Canon deNoberto Sandoval New Mexico Scour Critical — Countermeasures Installed Fair 1973 102
JEMEZ RIVER New Mexico Scour Critical — Countermeasures Installed Fair 1993 102
UNNAMED WATERWAY New Mexico Scour Critical — Countermeasures Installed Fair 1940 100
PAJARITO CREEK New Mexico Scour Critical — Countermeasures Installed Good 2002 100
MORA RIVER New Mexico Scour Critical — Countermeasures Installed Poor 1975 81
MORA RIVER New Mexico Scour Critical — Countermeasures Installed Fair 1950 81
UNNAMED WATERWAY New Mexico Scour Critical — Countermeasures Installed Fair 1955 80
SAPELLO RIVER New Mexico Scour Critical — Countermeasures Installed Poor 1967 74
UNNAMED WATERWAY New Mexico Scour Critical — Countermeasures Installed Fair 1968 72
PUERTO CREEK New Mexico Scour Critical — Countermeasures Installed Good 1996 72
GARCIA CREEK New Mexico Scour Critical — Countermeasures Installed Fair 1971 70
Cottonwood Canyon New Mexico Scour Critical — Countermeasures Installed Fair 1937 66
LOWER TROUT CREEK New Mexico Scour Critical — Countermeasures Installed Fair 1980 66
UNNAMED WATERWAY New Mexico Scour Critical — Countermeasures Installed Fair 1933 57
RITO PENA NEGRAS New Mexico Scour Critical — Countermeasures Installed Fair 1935 53
UNNAMED WATERWAY New Mexico Scour Critical — Countermeasures Installed Fair 1931 40
UNNAMED WATERWAY New Mexico Scour Critical — Countermeasures Installed Fair 1931 40
WOLF CREEK New Mexico Scour Critical — Countermeasures Installed Poor 1953 37
GILA RIVER New Mexico Scour Critical — Countermeasures Installed Fair 1986 30
JEMEZ RIVER New Mexico Scour Critical — Countermeasures Installed Good 2000 30
SOUTH FORK PUERCO RIVER New Mexico Scour Critical — Countermeasures Installed Poor 1943 5
UNKNOWN CREEK New Mexico Scour Critical — Countermeasures Installed Poor 1943 5
UNKNOWN CREEK New Mexico Scour Critical — Countermeasures Installed Poor 1943 5
FENCED UP HORSE ARROYO New Mexico Scour Critical — Countermeasures Installed Poor 1943 5
FENCED UP HORSE ARROYO New Mexico Scour Critical — Countermeasures Installed Fair 1943 5

Scour Critical Rating Codes

Code 2 — UnaddressedBridge is scour critical with no countermeasures installed. The foundation is vulnerable and no protective action has been taken.
Code 3 — Countermeasures InstalledProtective measures (riprap, sheet piling, etc.) have been installed to reduce scour risk, but the bridge remains classified as scour critical.
Code 6 — Countermeasures IneffectiveProtective 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.