Scour Critical Bridges in Texas

3,912 bridges in Texas 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 3,912 bridges in Texas have been identified as vulnerable to scour damage.

Clear

Bridge	State	Scour Status	Condition	Year Built	ADT
UPRR & HCFCD DITCH	Texas	Scour Critical — Countermeasures Ineffective	Fair	1987	30,000
SHIREY CREEK	Texas	Scour Critical — Countermeasures Ineffective	Fair	1971	30,000
HALLS BAYOU	Texas	Scour Critical — Countermeasures Ineffective	Good	1987	30,000
W TRIB #4	Texas	Scour Critical — Countermeasures Ineffective	Good	1988	29,631
PRAIRIE CREEK	Texas	Scour Critical — Countermeasures Ineffective	Fair	1971	29,620
PHARR-MCALLEN LATERAL	Texas	Scour Critical — Countermeasures Ineffective	Good	1985	29,300
RESACA DE LOS FRESNOS	Texas	Scour Critical — Countermeasures Ineffective	Fair	1998	29,060
LITTLE CANEY CRK	Texas	Scour Critical — Countermeasures Ineffective	Good	1988	28,997
UPRR & HCFCD DITCH	Texas	Scour Critical — Countermeasures Ineffective	Good	2006	28,600
UPRR & HCFCD DITCH	Texas	Scour Critical — Countermeasures Ineffective	Fair	2006	28,600
DRAIN	Texas	Scour Critical — Countermeasures Ineffective	Fair	1961	28,550
MCCALL CREEK	Texas	Scour Critical — Countermeasures Ineffective	Fair	1947	28,331
WEST CANAL	Texas	Scour Critical — Countermeasures Ineffective	Fair	1982	28,097
DRAW	Texas	Scour Critical — Countermeasures Ineffective	Good	1971	28,048
CYPRESS CREEK	Texas	Scour Critical — Countermeasures Ineffective	Good	2013	27,912
EAST SLOUGH	Texas	Scour Critical — Countermeasures Ineffective	Poor	1930	27,805
MISSION INLET FLOODWAY	Texas	Scour Critical — Countermeasures Ineffective	Good	2000	27,788
ALLIGATOR CRK	Texas	Scour Critical — Countermeasures Ineffective	Fair	1947	27,758
BULLHEAD BAYOU	Texas	Scour Critical — Countermeasures Ineffective	Good	1925	27,544
BULLHEAD BAYOU	Texas	Scour Critical — Countermeasures Ineffective	Good	1942	27,544
DRAINAGE DITCH	Texas	Scour Critical — Countermeasures Ineffective	Good	1940	27,534
MEDINA RIVER	Texas	Scour Critical — Countermeasures Ineffective	Fair	1940	27,368
Drain	Texas	Scour Critical — Countermeasures Ineffective	Fair	1956	27,332
ELM CREEK	Texas	Scour Critical — Countermeasures Ineffective	Fair	1950	27,324
CANEY CREEK	Texas	Scour Critical — Countermeasures Ineffective	Fair	1950	27,324
Brazos River	Texas	Scour Critical — Countermeasures Ineffective	Good	2008	27,291
ALCORN BAYOU	Texas	Scour Critical — Countermeasures Ineffective	Good	1971	27,291
LITTLE CEDAR BAYOU	Texas	Scour Critical — Countermeasures Ineffective	Fair	1969	27,169
LITTLE CEDAR BAYOU	Texas	Scour Critical — Countermeasures Ineffective	Good	1969	27,169
IH10 BW8 BROOKVIEW DR	Texas	Scour Critical — Countermeasures Ineffective	Fair	1994	27,080
DRAW	Texas	Scour Critical — Countermeasures Ineffective	Fair	1947	26,940
Draw	Texas	Scour Critical — Countermeasures Ineffective	Good	2024	26,397
Drain	Texas	Scour Critical — Countermeasures Ineffective	Good	1942	26,219
CLEAR CREEK	Texas	Scour Critical — Countermeasures Ineffective	Good	1992	26,147
COW BAYOU	Texas	Scour Critical — Countermeasures Ineffective	Good	1925	26,144
MUDDY CEDAR CREEK REL	Texas	Scour Critical — Countermeasures Ineffective	Fair	1965	26,006
OUTFALL 1	Texas	Scour Critical — Countermeasures Ineffective	Good	2010	25,956
LONG POINT CREEK	Texas	Scour Critical — Countermeasures Ineffective	Good	2004	25,950
ARROYO COLORADO	Texas	Scour Critical — Countermeasures Ineffective	Good	1978	25,847
MERCEDES MAIN CANAL	Texas	Scour Critical — Countermeasures Ineffective	Good	2008	25,790
MERCEDES MAIN CANAL	Texas	Scour Critical — Countermeasures Ineffective	Good	2008	25,790
NORTH FLOODWAY CHANNEL	Texas	Scour Critical — Countermeasures Ineffective	Good	2007	25,710
NORTH FLOODWAY CHANNEL	Texas	Scour Critical — Countermeasures Ineffective	Good	2007	25,710
DRAIN	Texas	Scour Critical — Countermeasures Ineffective	Good	1970	25,264
MUD CREEK	Texas	Scour Critical — Countermeasures Ineffective	Good	2015	25,236
SALADO CREEK EAST	Texas	Scour Critical — Countermeasures Ineffective	Good	2015	25,236
SALADO CREEK EAST	Texas	Scour Critical — Countermeasures Ineffective	Good	2015	25,236
MUD CREEK	Texas	Scour Critical — Countermeasures Ineffective	Fair	2015	25,236
HCFCD DITCH	Texas	Scour Critical — Countermeasures Ineffective	Fair	1993	25,090
DRAIN	Texas	Scour Critical — Countermeasures Ineffective	Good	1978	25,010

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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