US Bridges

Bus US 77 over Tranquitas Creek

Fair

Kleberg County, Texas · 0.06 MI S of FM 2045 · Structure no. 161370010212035

Built
1948
77 years old, rebuilt 1992
Condition
Fair
inspected June 2024
Type
Slab
Concrete Continuous
Length
110 ft
4 main spans
Daily traffic
11,796
2022 count
Owner
State
State Highway Agency

About this bridge

Bus US 77 over Tranquitas Creek is a concrete continuous slab carrying Bus US 77 over Tranquitas Creek in Kleberg County, Texas. It was built in 1948 and reconstructed in 1992, so it is 77 years old, older 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 11,796 vehicles a day, roughly 2% of them trucks, projected to reach 16,514 by 2042. The structure is 110 ft (33.5 m) long and 78 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesBus US 77
CrossesTranquitas Creek
Location0.06 MI S of FM 2045
RouteState Highway 77
StateTexas
Coordinates27.52183, -97.85621
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33 US tons
Inventory rating20 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length110 ft (33.5 m)
Longest span30 ft (9.1 m)
Deck width78 ft (23.8 m)
Roadway width65 ft (19.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,796 (2022)
Projected traffic16,514 by 2042
Trucks2%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Bus US 77 over Tranquitas Creek built?

It was built in 1948, making it 77 years old in 2025. It was reconstructed in 1992.

What condition is Bus US 77 over Tranquitas 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 June 2024.

How much traffic does Bus US 77 over Tranquitas Creek carry?

About 11,796 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Bus US 77 over Tranquitas Creek?

The structure is 110 ft (33.5 m) long with a longest span of 30 ft (9.1 m) and a deck 78 ft wide.

Who owns Bus US 77 over Tranquitas Creek?

It is owned by the State Highway Agency.