US Bridges

S Zarzamora over Comanche Creek

Good

Bexar County, Texas · 1.80 MI SW of IH 410 · Structure no. 150150B38350010

Built
2005
20 years old
Condition
Good
inspected July 2023
Type
Culvert
Concrete
Length
147 ft
13 main spans
Daily traffic
5,000
2013 count
Owner
City
City or Municipal Highway Agency

About this bridge

S Zarzamora over Comanche Creek is a concrete culvert carrying S Zarzamora over Comanche Creek in Bexar 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 5,000 vehicles a day, projected to reach 8,000 by 2033. The structure is 147 ft (44.8 m) long and 80 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesS Zarzamora
CrossesComanche Creek
Location1.80 MI SW of IH 410
RouteCity Street 0
StateTexas
Coordinates29.29845, -98.54621
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being 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

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans13
Design loadHS 20
Structure length147 ft (44.8 m)
Longest span10 ft (3 m)
Deck width80 ft (24.4 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,000 (2013)
Projected traffic8,000 by 2033
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 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 S Zarzamora over Comanche Creek built?

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

What condition is S Zarzamora over Comanche 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 July 2023.

How much traffic does S Zarzamora over Comanche Creek carry?

About 5,000 vehicles per day (2013 count).

How long is S Zarzamora over Comanche Creek?

The structure is 147 ft (44.8 m) long with a longest span of 10 ft (3 m) and a deck 80 ft wide.

Who owns S Zarzamora over Comanche Creek?

It is owned by the City or Municipal Highway Agency.