US Bridges

FM 1093 over San Bernard River

Fair

Austin County, Texas · At Austin-Wharton C/L · Structure no. 130080044606035

Built
1957
68 years old
Condition
Fair
inspected January 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
516 ft
17 main spans
Daily traffic
783
2024 count
Owner
State
State Highway Agency

About this bridge

FM 1093 over San Bernard River is a concrete stringer/multi-beam or girder carrying FM 1093 over San Bernard River in Austin County, Texas. It was built in 1957, so it is 68 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 783 vehicles a day, roughly 41% of them trucks, projected to reach 1,190 by 2038. The structure is 516 ft (157.3 m) long and 31 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesFM 1093
CrossesSan Bernard River
LocationAt Austin-Wharton C/L
RouteState Highway 1093
CountyAustin County
StateTexas
Coordinates29.62253, -96.14563
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 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 rating75 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans17
Design loadOther
Structure length516 ft (157.3 m)
Longest span30 ft (9.1 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic783 (2024)
Projected traffic1,190 by 2038
Trucks41%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 1093 over San Bernard River built?

It was built in 1957, making it 68 years old in 2025.

What condition is FM 1093 over San Bernard River 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 January 2023.

How much traffic does FM 1093 over San Bernard River carry?

About 783 vehicles per day (2024 count), of which roughly 41% are trucks.

How long is FM 1093 over San Bernard River?

The structure is 516 ft (157.3 m) long with a longest span of 30 ft (9.1 m) and a deck 31 ft wide.

Who owns FM 1093 over San Bernard River?

It is owned by the State Highway Agency.