US Bridges

N San Joaquin Ave over Zarzamora Creek

Fair

Bexar County, Texas · 0.45 MI N of W Commerce · Structure no. 150150B30445002

Built
1975
50 years old
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
258 ft
5 main spans
Daily traffic
2,145
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

N San Joaquin Ave over Zarzamora Creek is a prestressed concrete box beam or girders - multiple carrying N San Joaquin Ave over Zarzamora Creek in Bexar County, Texas. It was built in 1975, so it is 50 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 2,145 vehicles a day, projected to reach 3,417 by 2038. The structure is 258 ft (78.6 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesN San Joaquin Ave
CrossesZarzamora Creek
Location0.45 MI N of W Commerce
RouteCity Street 0
CountyBexar County
StateTexas
Coordinates29.43813, -98.56157
Functional classUrban 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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 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 typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadUnknown
Structure length258 ft (78.6 m)
Longest span52 ft (15.9 m)
Deck width42 ft (12.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,145 (2020)
Projected traffic3,417 by 2038
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 N San Joaquin Ave over Zarzamora Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is N San Joaquin Ave 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 August 2023.

How much traffic does N San Joaquin Ave over Zarzamora Creek carry?

About 2,145 vehicles per day (2020 count).

How long is N San Joaquin Ave over Zarzamora Creek?

The structure is 258 ft (78.6 m) long with a longest span of 52 ft (15.9 m) and a deck 42 ft wide.

Who owns N San Joaquin Ave over Zarzamora Creek?

It is owned by the City or Municipal Highway Agency.