US Bridges

US 77 SB over Los Olmos Creek

Good

Kleberg County, Texas · 2.0 MI S of SH 285 · Structure no. 161370032701036

Built
1980
45 years old
Condition
Good
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
576 ft
12 main spans
Daily traffic
4,312
2020 count
Owner
State
State Highway Agency

About this bridge

US 77 SB over Los Olmos Creek is a prestressed concrete box beam or girders - multiple carrying US 77 SB over Los Olmos Creek in Kleberg County, Texas. It was built in 1980, so it is 45 years old, older 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 4,312 vehicles a day, roughly 22% of them trucks, projected to reach 7,240 by 2033. The structure is 576 ft (175.6 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 77 SB
CrossesLos Olmos Creek
Location2.0 MI S of SH 285
RouteU.S. Route 77
StateTexas
Coordinates27.27309, -97.80289
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
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 evaluation7: Better than present minimum criteria
Deck geometry7: Better than 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

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans12
Design loadHS 20
Structure length576 ft (175.6 m)
Longest span48 ft (14.6 m)
Deck width40 ft (12.3 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,312 (2020)
Projected traffic7,240 by 2033
Trucks22%
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 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 SB over Los Olmos Creek built?

It was built in 1980, making it 45 years old in 2025.

What condition is US 77 SB over Los Olmos 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 SB over Los Olmos Creek carry?

About 4,312 vehicles per day (2020 count), of which roughly 22% are trucks.

How long is US 77 SB over Los Olmos Creek?

The structure is 576 ft (175.6 m) long with a longest span of 48 ft (14.6 m) and a deck 40 ft wide.

Who owns US 77 SB over Los Olmos Creek?

It is owned by the State Highway Agency.