US Bridges

US 77A over Rocky Creek

Good

Lavaca County, Texas · 2.10 MI SW of US 90A · Structure no. 131430026903046

Built
2023
2 years old
Condition
Good
inspected January 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
375 ft
6 main spans
Daily traffic
3,181
2021 count
Owner
State
State Highway Agency

About this bridge

US 77A over Rocky Creek is a prestressed concrete box beam or girders - multiple carrying US 77A over Rocky Creek in Lavaca County, Texas. It was built in 2023, so it is 2 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,181 vehicles a day, roughly 15% of them trucks, projected to reach 4,581 by 2041. The structure is 375 ft (114.3 m) long and 46 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesUS 77A
CrossesRocky Creek
Location2.10 MI SW of US 90A
RouteU.S. Route 77
StateTexas
Coordinates29.40535, -97.02681
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadHL 93
Structure length375 ft (114.3 m)
Longest span75 ft (22.9 m)
Deck width46 ft (14.1 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,181 (2021)
Projected traffic4,581 by 2041
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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 US 77A over Rocky Creek built?

It was built in 2023, making it 2 years old in 2025.

What condition is US 77A over Rocky Creek 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 January 2024.

How much traffic does US 77A over Rocky Creek carry?

About 3,181 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is US 77A over Rocky Creek?

The structure is 375 ft (114.3 m) long with a longest span of 75 ft (22.9 m) and a deck 46 ft wide.

Who owns US 77A over Rocky Creek?

It is owned by the State Highway Agency.