Scour Critical Bridges in North Carolina

130 bridges in North Carolina 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 130 bridges in North Carolina have been identified as vulnerable to scour damage.

Clear
Bridge State Scour Status Condition Year Built ADT
FIRST BROAD RIVER North Carolina Scour Critical — Countermeasures Installed Fair 1962 550
BIG LAUREL CREEK North Carolina Scour Critical — Countermeasures Installed Poor 1960 500
SOUTH YADKIN RIVER North Carolina Scour Critical — Countermeasures Installed Fair 1967 450
NEUSE RIVER North Carolina Scour Critical — Countermeasures Installed Fair 1968 450
FIFTH CREEK North Carolina Scour Critical — Countermeasures Installed Fair 1969 360
CATHEY CREEK North Carolina Scour Critical — Countermeasures Installed Poor 1923 320
LITTLE HORSE CREEK North Carolina Scour Critical — Countermeasures Installed Poor 1962 250
UT TO LONG CREEK North Carolina Scour Critical — Countermeasures Installed Fair 1976 250
VINE SWAMP North Carolina Scour Critical — Countermeasures Installed Fair 1975 250
TICK CREEK North Carolina Scour Critical — Countermeasures Installed Fair 1951 230
PAMLICO SOUND North Carolina Scour Critical — Countermeasures Installed Poor 1994 200
FISHING CREEK North Carolina Scour Critical — Countermeasures Installed Fair 1965 200
BROAD RIVER North Carolina Scour Critical — Countermeasures Installed Good 1979 150
STONE MOUNTAIN CREEK North Carolina Scour Critical — Countermeasures Installed Poor 1960 100
FISHING CREEK North Carolina Scour Critical — Countermeasures Installed Fair 1965 100
ARMSTRONG CREEK North Carolina Scour Critical — Countermeasures Installed Fair 1977 100
STEELE CREEK North Carolina Scour Critical — Countermeasures Installed Fair 1986 100
N.FORK FRENCH BROAD RVR. North Carolina Scour Critical — Countermeasures Installed Fair 1961 100
EAST PRONG ROARING RIVER North Carolina Scour Critical — Countermeasures Installed Fair 1960 100
GOVERNORS CREEK North Carolina Scour Critical — Countermeasures Installed Good 2020 100
CRAB CREEK North Carolina Scour Critical — Countermeasures Installed Fair 2019 90
PINEY FORK CREEK North Carolina Scour Critical — Countermeasures Installed Fair 2005 60
CABIN CREEK North Carolina Scour Critical — Countermeasures Installed Poor 1959 60
STONE MOUNTAIN CREEK North Carolina Scour Critical — Countermeasures Installed Fair 1960 60
STONE MOUNTAIN CREEK North Carolina Scour Critical — Countermeasures Installed Fair 1960 60
BULLHEAD CREEK North Carolina Scour Critical — Countermeasures Installed Good 1960 60
BRUSH CREEK North Carolina Scour Critical — Countermeasures Installed Fair 2007 50
PUPPY CREEK North Carolina Scour Critical — Countermeasures Installed Fair 1960 2
ROCKFISH CREEK North Carolina Scour Critical — Countermeasures Installed Poor 1960 1
JUNIPER CREEK North Carolina Scour Critical — Countermeasures Installed Fair 1960 1

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.