US Bridges

FM 1096 over Alligator Slough

Good

Wharton County, Texas · 3.00 MI N of FM 442 · Structure no. 132410216901002

Built
1957
68 years old
Condition
Good
inspected January 2023
Type
Culvert
Concrete
Length
42 ft
3 main spans
Daily traffic
857
2021 count
Owner
State
State Highway Agency

About this bridge

FM 1096 over Alligator Slough is a concrete culvert carrying FM 1096 over Alligator Slough in Wharton 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 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 857 vehicles a day, roughly 12% of them trucks, projected to reach 1,200 by 2041. The structure is 42 ft (12.8 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFM 1096
CrossesAlligator Slough
Location3.00 MI N of FM 442
RouteState Highway 1096
StateTexas
Coordinates29.25361, -95.97389
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 geometry6: Equal to present minimum criteria
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 spans3
Design loadOther
Structure length42 ft (12.8 m)
Longest span9 ft (2.7 m)
Deck width31 ft (9.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic857 (2021)
Projected traffic1,200 by 2041
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 1096 over Alligator Slough built?

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

What condition is FM 1096 over Alligator 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 1096 over Alligator Slough carry?

About 857 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is FM 1096 over Alligator Slough?

The structure is 42 ft (12.8 m) long with a longest span of 9 ft (2.7 m) and a deck 31 ft wide.

Who owns FM 1096 over Alligator Slough?

It is owned by the State Highway Agency.