US Bridges

FM 1093 over Elm Slough

Good

Austin County, Texas · 0.80 MI NE of SH 36 · Structure no. 130080125801003

Built
1950
75 years old, rebuilt 2010
Condition
Good
inspected January 2023
Type
Culvert
Concrete
Length
22 ft
4 main spans
Daily traffic
2,460
2018 count
Owner
State
State Highway Agency

About this bridge

FM 1093 over Elm Slough is a concrete culvert carrying FM 1093 over Elm Slough in Austin County, Texas. It was built in 1950 and reconstructed in 2010, so it is 75 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 2,460 vehicles a day, roughly 41% of them trucks, projected to reach 3,440 by 2038. The structure is 22 ft (6.7 m) long and 41 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesFM 1093
CrossesElm Slough
Location0.80 MI NE of SH 36
RouteState Highway 1093
CountyAustin County
StateTexas
Coordinates29.64007, -96.05647
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 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadOther
Structure length22 ft (6.7 m)
Longest span5 ft (1.5 m)
Deck width41 ft (12.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,460 (2018)
Projected traffic3,440 by 2038
Trucks41%
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 1093 over Elm Slough built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 2010.

What condition is FM 1093 over Elm Slough 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 January 2023.

How much traffic does FM 1093 over Elm Slough carry?

About 2,460 vehicles per day (2018 count), of which roughly 41% are trucks.

How long is FM 1093 over Elm Slough?

The structure is 22 ft (6.7 m) long with a longest span of 5 ft (1.5 m) and a deck 41 ft wide.

Who owns FM 1093 over Elm Slough?

It is owned by the State Highway Agency.