US Bridges

US 77 NB over Tranquitas Ck

Good

Kleberg County, Texas · 0.70 MI S of FM 1898 · Structure no. 161370010204128

Built
2005
20 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
210 ft
3 main spans
Daily traffic
9,816
2022 count
Owner
State
State Highway Agency

About this bridge

US 77 NB over Tranquitas Ck is a prestressed concrete stringer/multi-beam or girder carrying US 77 NB over Tranquitas Ck in Kleberg County, Texas. It was built in 2005, so it is 20 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 9,816 vehicles a day, roughly 27% of them trucks, projected to reach 13,349 by 2042. The structure is 210 ft (64 m) long and 51 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 77 NB
CrossesTranquitas Ck
Location0.70 MI S of FM 1898
RouteU.S. Route 77
StateTexas
Coordinates27.52047, -97.84071
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
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 geometry4: Meets minimum tolerable limits to be left in place as is
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
Design loadHL 93
Structure length210 ft (64 m)
Longest span70 ft (21.3 m)
Deck width51 ft (15.5 m)
Roadway width47 ft (14.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,816 (2022)
Projected traffic13,349 by 2042
Trucks27%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate 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 NB over Tranquitas Ck built?

It was built in 2005, making it 20 years old in 2025.

What condition is US 77 NB over Tranquitas Ck 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 NB over Tranquitas Ck carry?

About 9,816 vehicles per day (2022 count), of which roughly 27% are trucks.

How long is US 77 NB over Tranquitas Ck?

The structure is 210 ft (64 m) long with a longest span of 70 ft (21.3 m) and a deck 51 ft wide.

Who owns US 77 NB over Tranquitas Ck?

It is owned by the State Highway Agency.