US Bridges

IH 410 over Zarzamora Creek

Fair

Bexar County, Texas · 0.9 MI NE of SH 16 · Structure no. 150150052104074

Built
1958
67 years old, rebuilt 1981
Condition
Fair
inspected June 2024
Type
Culvert
Concrete
Length
42 ft
5 main spans
Daily traffic
151,351
2020 count
Owner
State
State Highway Agency

About this bridge

IH 410 over Zarzamora Creek is a concrete culvert carrying IH 410 over Zarzamora Creek in Bexar County, Texas. It was built in 1958 and reconstructed in 1981, so it is 67 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 151,351 vehicles a day, roughly 4% of them trucks, projected to reach 198,860 by 2033. The structure is 42 ft (12.8 m) long and 289 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIH 410
CrossesZarzamora Creek
Location0.9 MI NE of SH 16
RouteInterstate 410
CountyBexar County
StateTexas
Coordinates29.48699, -98.58744
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans5
Design loadHS 20
Structure length42 ft (12.8 m)
Longest span10 ft (3 m)
Deck width289 ft (88.1 m)
Roadway width230 ft (70.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic151,351 (2020)
Projected traffic198,860 by 2033
Trucks4%
Lanes on structure14
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 IH 410 over Zarzamora Creek built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1981.

What condition is IH 410 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 June 2024.

How much traffic does IH 410 over Zarzamora Creek carry?

About 151,351 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is IH 410 over Zarzamora Creek?

The structure is 42 ft (12.8 m) long with a longest span of 10 ft (3 m) and a deck 289 ft wide.

Who owns IH 410 over Zarzamora Creek?

It is owned by the State Highway Agency.