US Bridges

FM 4 over Trib to Mustang Creek

Fair

Johnson County, Texas · 8.2 MI NW of FM 916 · Structure no. 021270071201001

Built
1921
104 years old, rebuilt 1962
Condition
Fair
inspected October 2024
Type
Culvert
Concrete
Length
36 ft
4 main spans
Daily traffic
6,683
2024 count
Owner
State
State Highway Agency

About this bridge

FM 4 over Trib to Mustang Creek is a concrete culvert carrying FM 4 over Trib to Mustang Creek in Johnson County, Texas. It was built in 1921 and reconstructed in 1962, so it is 104 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 6,683 vehicles a day, roughly 4% of them trucks, projected to reach 3,300 by 2033. The structure is 36 ft (11 m) long and 52 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesFM 4
CrossesTrib to Mustang Creek
Location8.2 MI NW of FM 916
RouteState Highway 4
StateTexas
Coordinates32.33461, -97.31173
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
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 rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length36 ft (11 m)
Longest span8 ft (2.4 m)
Deck width52 ft (15.7 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,683 (2024)
Projected traffic3,300 by 2033
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 4 over Trib to Mustang Creek built?

It was built in 1921, making it 104 years old in 2025. It was reconstructed in 1962.

What condition is FM 4 over Trib to Mustang Creek 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 October 2024.

How much traffic does FM 4 over Trib to Mustang Creek carry?

About 6,683 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is FM 4 over Trib to Mustang Creek?

The structure is 36 ft (11 m) long with a longest span of 8 ft (2.4 m) and a deck 52 ft wide.

Who owns FM 4 over Trib to Mustang Creek?

It is owned by the State Highway Agency.