US Bridges

6th Street over Tranquitas Creek

Fair

Kleberg County, Texas · 0.4 MI S of FM 1898 · Structure no. 161370B00840001

Built
1940
85 years old, rebuilt 1991
Condition
Fair
inspected April 2023
Type
Slab
Concrete
Length
134 ft
6 main spans
Daily traffic
1,000
2011 count
Owner
City
City or Municipal Highway Agency

About this bridge

6th Street over Tranquitas Creek is a concrete slab carrying 6th Street over Tranquitas Creek in Kleberg County, Texas. It was built in 1940 and reconstructed in 1991, so it is 85 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 1,000 vehicles a day, projected to reach 1,500 by 2031. The structure is 134 ft (40.8 m) long and 59 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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Carries6th Street
CrossesTranquitas Creek
Location0.4 MI S of FM 1898
RouteCity Street 0
CountyKleberg County
StateTexas
Coordinates27.52632, -97.86742
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadUnknown
Structure length134 ft (40.8 m)
Longest span22 ft (6.7 m)
Deck width59 ft (17.9 m)
Roadway width51 ft (15.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2011)
Projected traffic1,500 by 2031
Trucks0%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 6th Street over Tranquitas Creek built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1991.

What condition is 6th Street 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 April 2023.

How much traffic does 6th Street over Tranquitas Creek carry?

About 1,000 vehicles per day (2011 count).

How long is 6th Street over Tranquitas Creek?

The structure is 134 ft (40.8 m) long with a longest span of 22 ft (6.7 m) and a deck 59 ft wide.

Who owns 6th Street over Tranquitas Creek?

It is owned by the City or Municipal Highway Agency.