US Bridges

Culebra RD over Zarzamora Creek

Fair

Bexar County, Texas · 0.43MI E of Callaghan RD · Structure no. 150150B08545010

Built
1984
41 years old
Condition
Fair
inspected May 2023
Type
Slab
Concrete
Length
325 ft
13 main spans
Daily traffic
23,928
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Culebra RD over Zarzamora Creek is a concrete slab carrying Culebra RD over Zarzamora Creek in Bexar County, Texas. It was built in 1984, so it is 41 years old, younger 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 23,928 vehicles a day, projected to reach 36,000 by 2031. The structure is 325 ft (99.1 m) long and 74 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesCulebra RD
CrossesZarzamora Creek
Location0.43MI E of Callaghan RD
RouteCity Street 8108
CountyBexar County
StateTexas
Coordinates29.44849, -98.59498
Functional classUrban Other Principal Arterial

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to 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 spans13
Design loadHS 20
Structure length325 ft (99.1 m)
Longest span25 ft (7.6 m)
Deck width74 ft (22.6 m)
Roadway width62 ft (18.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,928 (2018)
Projected traffic36,000 by 2031
Trucks0%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Culebra RD over Zarzamora Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is Culebra RD over Zarzamora 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 2023.

How much traffic does Culebra RD over Zarzamora Creek carry?

About 23,928 vehicles per day (2018 count).

How long is Culebra RD over Zarzamora Creek?

The structure is 325 ft (99.1 m) long with a longest span of 25 ft (7.6 m) and a deck 74 ft wide.

Who owns Culebra RD over Zarzamora Creek?

It is owned by the City or Municipal Highway Agency.