US Bridges

FM 791 over Salt Branch Creek

Good

Atascosa County, Texas · 0.65 MI SW of US 281A · Structure no. 150070173903006

Built
1969
56 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete
Length
39 ft
4 main spans
Daily traffic
543
2020 count
Owner
State
State Highway Agency

About this bridge

FM 791 over Salt Branch Creek is a concrete culvert carrying FM 791 over Salt Branch Creek in Atascosa County, Texas. It was built in 1969, so it is 56 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 543 vehicles a day, roughly 35% of them trucks, projected to reach 1,870 by 2033. The structure is 39 ft (11.9 m) long. If it were closed, the detour would be 8.1 mi (13 km).

CarriesFM 791
CrossesSalt Branch Creek
Location0.65 MI SW of US 281A
RouteState Highway 791
StateTexas
Coordinates28.67722, -98.38402
Functional classRural Major Collector

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 inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length39 ft (11.9 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic543 (2020)
Projected traffic1,870 by 2033
Trucks35%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

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 FM 791 over Salt Branch Creek built?

It was built in 1969, making it 56 years old in 2025.

What condition is FM 791 over Salt Branch 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 2024.

How much traffic does FM 791 over Salt Branch Creek carry?

About 543 vehicles per day (2020 count), of which roughly 35% are trucks.

How long is FM 791 over Salt Branch Creek?

The structure is 39 ft (11.9 m) long with a longest span of 9 ft (2.7 m).

Who owns FM 791 over Salt Branch Creek?

It is owned by the State Highway Agency.