US Bridges

US 77 Nbfr over Santa Gertrudis Creek

Good

Kleberg County, Texas · 1.7 MI SW of FM 425 · Structure no. 161370010204231

Built
2022
3 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
480 ft
3 main spans
Daily traffic
32,000
2017 count
Owner
State
State Highway Agency

About this bridge

US 77 Nbfr over Santa Gertrudis Creek is a prestressed concrete stringer/multi-beam or girder carrying US 77 Nbfr over Santa Gertrudis Creek in Kleberg County, Texas. It was built in 2022, so it is 3 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 32,000 vehicles a day, roughly 24% of them trucks, projected to reach 58,000 by 2047. The structure is 480 ft (146.3 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 77 Nbfr
CrossesSanta Gertrudis Creek
Location1.7 MI SW of FM 425
RouteU.S. Route 77
StateTexas
Coordinates27.4761, -97.85449
Functional classUrban Other Principal Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior 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 spans3 (+3 approach)
Design loadHL 93
Structure length480 ft (146.3 m)
Longest span113 ft (34.4 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32,000 (2017)
Projected traffic58,000 by 2047
Trucks24%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 77 Nbfr over Santa Gertrudis Creek built?

It was built in 2022, making it 3 years old in 2025.

What condition is US 77 Nbfr over Santa Gertrudis 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 June 2024.

How much traffic does US 77 Nbfr over Santa Gertrudis Creek carry?

About 32,000 vehicles per day (2017 count), of which roughly 24% are trucks.

How long is US 77 Nbfr over Santa Gertrudis Creek?

The structure is 480 ft (146.3 m) long with a longest span of 113 ft (34.4 m) and a deck 38 ft wide.

Who owns US 77 Nbfr over Santa Gertrudis Creek?

It is owned by the State Highway Agency.