Scour Critical Bridges in Nevada

94 bridges in Nevada 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 94 bridges in Nevada have been identified as vulnerable to scour damage.

Clear
Bridge State Scour Status Condition Year Built ADT
DRY WASH Nevada Scour Critical — Countermeasures Ineffective Fair 1993 91,000
Pittman Wash-Bermuda Nevada Scour Critical — Countermeasures Ineffective Good 2024 19,100
Pittman Wash-South Nevada Scour Critical — Countermeasures Ineffective Good 2024 19,100
CentennialPkwyChannel W Nevada Scour Critical — Countermeasures Ineffective Good 2018 6,350
Truckee Canal Nevada Scour Critical — Countermeasures Ineffective Good 2024 2,550
Pittman Wash Ped Trail Nevada Scour Critical — Countermeasures Ineffective Good 2024 2,000
Pittman Wash Nevada Scour Critical — Countermeasures Ineffective Good 2024 2,000
SR 396 & SPRR Nevada Scour Critical — Countermeasures Ineffective Fair 1981 1,300
N Fork Humboldt Rvr Nevada Scour Critical — Countermeasures Ineffective Good 2024 200
UPRR & TRUCKEE RIVER Nevada Scour Critical — Countermeasures Installed Fair 1990 27,000
TRUCKEE RIVER Nevada Scour Critical — Countermeasures Installed Fair 1971 22,200
MUDDY RIVER Nevada Scour Critical — Countermeasures Installed Fair 1962 19,250
MUDDY RIVER Nevada Scour Critical — Countermeasures Installed Fair 1962 19,250
TRUCKEE RIVER & SPRR Nevada Scour Critical — Countermeasures Installed Fair 1964 18,750
TRUCKEE RIVER & SPRR Nevada Scour Critical — Countermeasures Installed Fair 1964 18,750
HUMBOLDT RVR Nevada Scour Critical — Countermeasures Installed Fair 1979 18,400
CARSON RIVER Nevada Scour Critical — Countermeasures Installed Fair 1980 16,800
CRADLEBAUGH SLOUGH Nevada Scour Critical — Countermeasures Installed Fair 1968 16,750
CARSON RVR Nevada Scour Critical — Countermeasures Installed Fair 1968 16,750
CARSON RVR Nevada Scour Critical — Countermeasures Installed Good 1987 16,750
CRADLEBAUGH SLOUGH Nevada Scour Critical — Countermeasures Installed Fair 1987 16,750
LAS VEGAS WASH Nevada Scour Critical — Countermeasures Installed Fair 1978 16,700
TRUCKEE RIVER Nevada Scour Critical — Countermeasures Installed Fair 1962 16,500
TRUCKEE RIVER Nevada Scour Critical — Countermeasures Installed Fair 1962 16,500
LAS VEGAS WASH Nevada Scour Critical — Countermeasures Installed Good 1979 16,000
AIRPORT SLOUGH Nevada Scour Critical — Countermeasures Installed Fair 1965 14,800
TRUCKEE RVR Nevada Scour Critical — Countermeasures Installed Fair 1961 13,950
TRUCKEE RVR Nevada Scour Critical — Countermeasures Installed Fair 1961 13,950
TRUCKEE RVR Nevada Scour Critical — Countermeasures Installed Fair 1921 13,000
TRUCKEE RIVER Nevada Scour Critical — Countermeasures Installed Poor 1966 12,800
E FORK CARSON RVR Nevada Scour Critical — Countermeasures Installed Fair 1951 12,800
COTTONWOOD SLOUGH Nevada Scour Critical — Countermeasures Installed Good 1952 12,800
TOQUOP WASH Nevada Scour Critical — Countermeasures Installed Good 1954 12,400
TOQUOP WASH Nevada Scour Critical — Countermeasures Installed Fair 1965 12,400
DUCK CRK Nevada Scour Critical — Countermeasures Installed Good 1974 12,000
DUCK CRK Nevada Scour Critical — Countermeasures Installed Good 1974 12,000
TRUCKEE RIVER Nevada Scour Critical — Countermeasures Installed Fair 1980 11,200
ROCKY SLOUGH Nevada Scour Critical — Countermeasures Installed Good 1957 9,850
EAST FORK CARSON RIVER Nevada Scour Critical — Countermeasures Installed Fair 1981 9,100
ROCKY SLOUGH Nevada Scour Critical — Countermeasures Installed Good 1987 9,100
TRUCKEE RVR Nevada Scour Critical — Countermeasures Installed Fair 1971 8,750
TRUCKEE RIVER Nevada Scour Critical — Countermeasures Installed Fair 1966 7,950
TRUCKEE RIVER Nevada Scour Critical — Countermeasures Installed Fair 1966 7,950
TRUCKEE RVR Nevada Scour Critical — Countermeasures Installed Poor 1937 7,600
WATER ST SP&UPRR&HMBLT R Nevada Scour Critical — Countermeasures Installed Good 1980 6,900
TRUCKEE RVR Nevada Scour Critical — Countermeasures Installed Fair 1937 6,900
TRUCKEE RIVER Nevada Scour Critical — Countermeasures Installed Fair 1989 6,800
HUMBOLDT RVR Nevada Scour Critical — Countermeasures Installed Fair 1986 6,550
MUDDY RVR Nevada Scour Critical — Countermeasures Installed Fair 1944 5,300
RED ROCK WASH Nevada Scour Critical — Countermeasures Installed Good 1985 5,000

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.