US Bridges

SH 255 over Santa Isabel Creek

Fair

Webb County, Texas · 0.78 MI West of FM 3338 · Structure no. 222400358602010

Built
1999
26 years old
Condition
Fair
inspected December 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
550 ft
5 main spans
Daily traffic
1,930
2024 count
Owner
State
State Highway Agency

About this bridge

SH 255 over Santa Isabel Creek is a prestressed concrete stringer/multi-beam or girder carrying SH 255 over Santa Isabel Creek in Webb County, Texas. It was built in 1999, so it is 26 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,930 vehicles a day, roughly 21% of them trucks, projected to reach 980 by 2030. The structure is 550 ft (167.6 m) long and 46 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

Open in Google Maps
CarriesSH 255
CrossesSanta Isabel Creek
Location0.78 MI West of FM 3338
CountyWebb County
StateTexas
Coordinates27.75127, -99.64062
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2022
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 25 or greater
Structure length550 ft (167.6 m)
Longest span110 ft (33.5 m)
Deck width46 ft (14 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,930 (2024)
Projected traffic980 by 2030
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 km)
TollOn a toll road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 255 over Santa Isabel Creek built?

It was built in 1999, making it 26 years old in 2025.

What condition is SH 255 over Santa Isabel Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2022.

How much traffic does SH 255 over Santa Isabel Creek carry?

About 1,930 vehicles per day (2024 count), of which roughly 21% are trucks.

How long is SH 255 over Santa Isabel Creek?

The structure is 550 ft (167.6 m) long with a longest span of 110 ft (33.5 m) and a deck 46 ft wide.

Who owns SH 255 over Santa Isabel Creek?

It is owned by the State Highway Agency.