US Bridges

FM 51 over Clear Fork Trinity River

Fair

Parker County, Texas · 7.3 MI N of FM 920 · Structure no. 021840031302029

Built
1993
32 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
531 ft
9 main spans
Daily traffic
9,680
2023 count
Owner
State
State Highway Agency

About this bridge

FM 51 over Clear Fork Trinity River is a prestressed concrete stringer/multi-beam or girder carrying FM 51 over Clear Fork Trinity River in Parker County, Texas. It was built in 1993, so it is 32 years old, younger 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 9,680 vehicles a day, roughly 9% of them trucks, projected to reach 9,800 by 2040. The structure is 531 ft (161.8 m) long and 56 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesFM 51
CrossesClear Fork Trinity River
Location7.3 MI N of FM 920
RouteState Highway 51
StateTexas
Coordinates32.87106, -97.74416
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable 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

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20
Structure length531 ft (161.8 m)
Longest span67 ft (20.4 m)
Deck width56 ft (17.1 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,680 (2023)
Projected traffic9,800 by 2040
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 51 over Clear Fork Trinity River built?

It was built in 1993, making it 32 years old in 2025.

What condition is FM 51 over Clear Fork Trinity River 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 September 2024.

How much traffic does FM 51 over Clear Fork Trinity River carry?

About 9,680 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is FM 51 over Clear Fork Trinity River?

The structure is 531 ft (161.8 m) long with a longest span of 67 ft (20.4 m) and a deck 56 ft wide.

Who owns FM 51 over Clear Fork Trinity River?

It is owned by the State Highway Agency.