US Bridges

Fortuna ST over Zarzamora Creek

Good

Bexar County, Texas · 0.10 MI W of 36th ST · Structure no. 150150B12680001

Built
1975
50 years old
Condition
Good
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
178 ft
3 main spans
Daily traffic
1,001
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Fortuna ST over Zarzamora Creek is a prestressed concrete box beam or girders - multiple carrying Fortuna ST 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 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 1,001 vehicles a day, projected to reach 678 by 2031. The structure is 178 ft (54.3 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesFortuna ST
CrossesZarzamora Creek
Location0.10 MI W of 36th ST
RouteCity Street 0
CountyBexar County
StateTexas
Coordinates29.43674, -98.5734
Functional classUrban Local

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 inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length178 ft (54.3 m)
Longest span59 ft (18 m)
Deck width42 ft (12.9 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,001 (2020)
Projected traffic678 by 2031
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 Fortuna ST over Zarzamora Creek built?

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

What condition is Fortuna ST over Zarzamora 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 May 2023.

How much traffic does Fortuna ST over Zarzamora Creek carry?

About 1,001 vehicles per day (2020 count).

How long is Fortuna ST over Zarzamora Creek?

The structure is 178 ft (54.3 m) long with a longest span of 59 ft (18 m) and a deck 42 ft wide.

Who owns Fortuna ST over Zarzamora Creek?

It is owned by the City or Municipal Highway Agency.