US Bridges

Ext of SH 255 Toll over Rio Grande River

Good

Webb County, Texas · 1.185 MI SW of FM 1472 · Structure no. 222400B01391001

Built
1991
34 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,216 ft
13 main spans
Daily traffic
1,725
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Ext of SH 255 Toll over Rio Grande River is a prestressed concrete stringer/multi-beam or girder carrying Ext of SH 255 Toll over Rio Grande River in Webb County, Texas. It was built in 1991, so it is 34 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,725 vehicles a day, roughly 62% of them trucks, projected to reach 18,600 by 2034. The structure is 1,216 ft (370.6 m) long and 120 ft wide. If it were closed, the detour would be 65.9 mi (106 km).

CarriesExt of SH 255 Toll
CrossesRio Grande River
Location1.185 MI SW of FM 1472
StateTexas
Coordinates27.69981, -99.7455
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans13
Design loadHS 20
Structure length1,216 ft (370.6 m)
Longest span94 ft (28.7 m)
Deck width120 ft (36.6 m)
Roadway width100 ft (30.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,725 (2024)
Projected traffic18,600 by 2034
Trucks62%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed65.9 mi (106 km)
TollToll bridge
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Ext of SH 255 Toll over Rio Grande River built?

It was built in 1991, making it 34 years old in 2025.

What condition is Ext of SH 255 Toll over Rio Grande River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does Ext of SH 255 Toll over Rio Grande River carry?

About 1,725 vehicles per day (2024 count), of which roughly 62% are trucks.

How long is Ext of SH 255 Toll over Rio Grande River?

The structure is 1,216 ft (370.6 m) long with a longest span of 94 ft (28.7 m) and a deck 120 ft wide.

Who owns Ext of SH 255 Toll over Rio Grande River?

It is owned by the City or Municipal Highway Agency.