US Bridges

FM 471 over Culebra Creek Trib

Fair

Bexar County, Texas · 2.25 MI SW of SH 16 · Structure no. 150150084901016

Built
1989
36 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
53 ft
5 main spans
Daily traffic
18,674
2015 count
Owner
City
City or Municipal Highway Agency

About this bridge

FM 471 over Culebra Creek Trib is a concrete culvert carrying FM 471 over Culebra Creek Trib in Bexar County, Texas. It was built in 1989, so it is 36 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 18,674 vehicles a day, roughly 4% of them trucks, projected to reach 40,420 by 2033. The structure is 53 ft (16.2 m) long and 113 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesFM 471
CrossesCulebra Creek Trib
Location2.25 MI SW of SH 16
RouteState Highway 471
CountyBexar County
StateTexas
Coordinates29.4773, -98.64776
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length53 ft (16.2 m)
Longest span10 ft (3 m)
Deck width113 ft (34.5 m)
Roadway width67 ft (20.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,674 (2015)
Projected traffic40,420 by 2033
Trucks4%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemYes

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 FM 471 over Culebra Creek Trib built?

It was built in 1989, making it 36 years old in 2025.

What condition is FM 471 over Culebra Creek Trib 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 2023.

How much traffic does FM 471 over Culebra Creek Trib carry?

About 18,674 vehicles per day (2015 count), of which roughly 4% are trucks.

How long is FM 471 over Culebra Creek Trib?

The structure is 53 ft (16.2 m) long with a longest span of 10 ft (3 m) and a deck 113 ft wide.

Who owns FM 471 over Culebra Creek Trib?

It is owned by the City or Municipal Highway Agency.