US Bridges

FM 1160 over Porters Creek

Fair

Wharton County, Texas · 1.50 MI N of FM 2546 · Structure no. 132410130201005

Built
1955
70 years old
Condition
Fair
inspected November 2024
Type
Culvert
Concrete
Length
23 ft
3 main spans
Daily traffic
392
2020 count
Owner
State
State Highway Agency

About this bridge

FM 1160 over Porters Creek is a concrete culvert carrying FM 1160 over Porters Creek in Wharton County, Texas. It was built in 1955, so it is 70 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 392 vehicles a day, roughly 4% of them trucks, projected to reach 480 by 2033. The structure is 23 ft (7 m) long and 37 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesFM 1160
CrossesPorters Creek
Location1.50 MI N of FM 2546
RouteState Highway 1160
StateTexas
Coordinates29.30418, -96.39732
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable 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 length23 ft (7 m)
Longest span7 ft (2.1 m)
Deck width37 ft (11.4 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic392 (2020)
Projected traffic480 by 2033
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 1160 over Porters Creek built?

It was built in 1955, making it 70 years old in 2025.

What condition is FM 1160 over Porters 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 November 2024.

How much traffic does FM 1160 over Porters Creek carry?

About 392 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is FM 1160 over Porters Creek?

The structure is 23 ft (7 m) long with a longest span of 7 ft (2.1 m) and a deck 37 ft wide.

Who owns FM 1160 over Porters Creek?

It is owned by the State Highway Agency.