US Bridges

FM 136 over Mullens Bayou

Good

Refugio County, Texas · 0.35 MI N of FM 1360 · Structure no. 161960073801018

Built
1992
33 years old
Condition
Good
inspected June 2024
Type
Other
Prestressed Concrete
Length
100 ft
2 main spans
Daily traffic
3,535
2022 count
Owner
State
State Highway Agency

About this bridge

FM 136 over Mullens Bayou is a prestressed concrete other carrying FM 136 over Mullens Bayou in Refugio County, Texas. It was built in 1992, so it is 33 years old, younger 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 3,535 vehicles a day, roughly 10% of them trucks, projected to reach 4,670 by 2033. The structure is 100 ft (30.5 m) long and 46 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesFM 136
CrossesMullens Bayou
Location0.35 MI N of FM 1360
RouteState Highway 136
StateTexas
Coordinates28.13971, -97.20894
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeOther
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length100 ft (30.5 m)
Longest span55 ft (16.8 m)
Deck width46 ft (14 m)
Roadway width44 ft (13.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,535 (2022)
Projected traffic4,670 by 2033
Trucks10%
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 136 over Mullens Bayou built?

It was built in 1992, making it 33 years old in 2025.

What condition is FM 136 over Mullens Bayou 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 June 2024.

How much traffic does FM 136 over Mullens Bayou carry?

About 3,535 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is FM 136 over Mullens Bayou?

The structure is 100 ft (30.5 m) long with a longest span of 55 ft (16.8 m) and a deck 46 ft wide.

Who owns FM 136 over Mullens Bayou?

It is owned by the State Highway Agency.