US Bridges

FM 51 over Lake Granbury

Fair

Hood County, Texas · 2.5 MI N of Bus US 377 · Structure no. 021120031308039

Built
2000
25 years old
Condition
Fair
inspected December 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,724 ft
13 main spans
Daily traffic
11,105
2024 count
Owner
State
State Highway Agency

About this bridge

FM 51 over Lake Granbury is a prestressed concrete stringer/multi-beam or girder carrying FM 51 over Lake Granbury in Hood County, Texas. It was built in 2000, so it is 25 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 11,105 vehicles a day, roughly 13% of them trucks, projected to reach 12,890 by 2033. The structure is 1,724 ft (525.5 m) long and 41 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesFM 51
CrossesLake Granbury
Location2.5 MI N of Bus US 377
RouteState Highway 51
CountyHood County
StateTexas
Coordinates32.47722, -97.78779
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans13 (+2 approach)
Design loadHS 20
Structure length1,724 ft (525.5 m)
Longest span120 ft (36.6 m)
Deck width41 ft (12.6 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,105 (2024)
Projected traffic12,890 by 2033
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 Lake Granbury built?

It was built in 2000, making it 25 years old in 2025.

What condition is FM 51 over Lake Granbury 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 December 2022.

How much traffic does FM 51 over Lake Granbury carry?

About 11,105 vehicles per day (2024 count), of which roughly 13% are trucks.

How long is FM 51 over Lake Granbury?

The structure is 1,724 ft (525.5 m) long with a longest span of 120 ft (36.6 m) and a deck 41 ft wide.

Who owns FM 51 over Lake Granbury?

It is owned by the State Highway Agency.