US Bridges

FM 356 over White Rock Creek

Fair

Trinity County, Texas · 1.30 MI NW of FM 355 · Structure no. 112280047509093

Built
1970
55 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
480 ft
6 main spans
Daily traffic
2,679
2022 count
Owner
State
State Highway Agency

About this bridge

FM 356 over White Rock Creek is a prestressed concrete stringer/multi-beam or girder carrying FM 356 over White Rock Creek in Trinity County, Texas. It was built in 1970, so it is 55 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 2,679 vehicles a day, roughly 8% of them trucks, projected to reach 4,447 by 2042. The structure is 480 ft (146.3 m) long and 35 ft wide. If it were closed, the detour would be 23 mi (37 km).

Location

Open in Google Maps
CarriesFM 356
CrossesWhite Rock Creek
Location1.30 MI NW of FM 355
RouteState Highway 356
CountyTrinity County
StateTexas
Coordinates30.91342, -95.27071
Functional classRural Minor Arterial

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.
Superstructure7 GoodSome minor problems.
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 within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadH 20
Structure length480 ft (146.3 m)
Longest span80 ft (24.4 m)
Deck width35 ft (10.8 m)
Roadway width33 ft (10 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,679 (2022)
Projected traffic4,447 by 2042
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed23 mi (37 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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was FM 356 over White Rock Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is FM 356 over White Rock 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 March 2024.

How much traffic does FM 356 over White Rock Creek carry?

About 2,679 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is FM 356 over White Rock Creek?

The structure is 480 ft (146.3 m) long with a longest span of 80 ft (24.4 m) and a deck 35 ft wide.

Who owns FM 356 over White Rock Creek?

It is owned by the State Highway Agency.