US Bridges

US 77 NB over Petronila Creek

Fair

Nueces County, Texas · 0.65 MI N of FM 665 · Structure no. 161780010203048

Built
1964
61 years old, rebuilt 1987
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
516 ft
17 main spans
Daily traffic
10,728
2022 count
Owner
State
State Highway Agency

About this bridge

US 77 NB over Petronila Creek is a concrete stringer/multi-beam or girder carrying US 77 NB over Petronila Creek in Nueces County, Texas. It was built in 1964 and reconstructed in 1987, so it is 61 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 5 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 10,728 vehicles a day, roughly 36% of them trucks, projected to reach 17,379 by 2042. The structure is 516 ft (157.3 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 77 NB
CrossesPetronila Creek
Location0.65 MI N of FM 665
RouteU.S. Route 77
CountyNueces County
StateTexas
Coordinates27.68371, -97.7433
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans17
Design loadH 20
Structure length516 ft (157.3 m)
Longest span30 ft (9.1 m)
Deck width40 ft (12.2 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,728 (2022)
Projected traffic17,379 by 2042
Trucks36%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 US 77 NB over Petronila Creek built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1987.

What condition is US 77 NB over Petronila 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 May 2024.

How much traffic does US 77 NB over Petronila Creek carry?

About 10,728 vehicles per day (2022 count), of which roughly 36% are trucks.

How long is US 77 NB over Petronila Creek?

The structure is 516 ft (157.3 m) long with a longest span of 30 ft (9.1 m) and a deck 40 ft wide.

Who owns US 77 NB over Petronila Creek?

It is owned by the State Highway Agency.