US Bridges

FM 1135 over Cow Bayou Tributary

Fair

Orange County, Texas · 2.20 MI S of IH 10 · Structure no. 201810078406009

Built
1954
71 years old, rebuilt 1988
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
90 ft
3 main spans
Daily traffic
804
2016 count
Owner
State
State Highway Agency

About this bridge

FM 1135 over Cow Bayou Tributary is a concrete stringer/multi-beam or girder carrying FM 1135 over Cow Bayou Tributary in Orange County, Texas. It was built in 1954 and reconstructed in 1988, so it is 71 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 804 vehicles a day, roughly 6% of them trucks, projected to reach 970 by 2033. The structure is 90 ft (27.4 m) long and 45 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesFM 1135
CrossesCow Bayou Tributary
Location2.20 MI S of IH 10
RouteState Highway 1135
StateTexas
Coordinates30.09778, -93.9351
Functional classRural Principal Arterial - Other

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 inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56 US tons
Inventory rating34 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length90 ft (27.4 m)
Longest span30 ft (9.1 m)
Deck width45 ft (13.6 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic804 (2016)
Projected traffic970 by 2033
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 1135 over Cow Bayou Tributary built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1988.

What condition is FM 1135 over Cow Bayou Tributary 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 March 2024.

How much traffic does FM 1135 over Cow Bayou Tributary carry?

About 804 vehicles per day (2016 count), of which roughly 6% are trucks.

How long is FM 1135 over Cow Bayou Tributary?

The structure is 90 ft (27.4 m) long with a longest span of 30 ft (9.1 m) and a deck 45 ft wide.

Who owns FM 1135 over Cow Bayou Tributary?

It is owned by the State Highway Agency.