US Bridges

SH 71 over Flat Rock Creek

Good

Burnet County, Texas · 0.75 MI E of US 281 · Structure no. 140270070001033

Built
2005
20 years old
Condition
Good
inspected April 2023
Type
Slab
Prestressed Concrete
Length
160 ft
5 main spans
Daily traffic
24,589
2023 count
Owner
State
State Highway Agency

About this bridge

SH 71 over Flat Rock Creek is a prestressed concrete slab carrying SH 71 over Flat Rock Creek in Burnet County, Texas. It was built in 2005, so it is 20 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 24,589 vehicles a day, roughly 6% of them trucks, projected to reach 16,973 by 2039. The structure is 160 ft (48.8 m) long and 84 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

CarriesSH 71
CrossesFlat Rock Creek
Location0.75 MI E of US 281
RouteState Highway 71
StateTexas
Coordinates30.50612, -98.28406
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length160 ft (48.8 m)
Longest span35 ft (10.7 m)
Deck width84 ft (25.6 m)
Roadway width81 ft (24.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,589 (2023)
Projected traffic16,973 by 2039
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 km)
TollOn a free road
National Highway SystemYes

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 SH 71 over Flat Rock Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is SH 71 over Flat Rock Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does SH 71 over Flat Rock Creek carry?

About 24,589 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is SH 71 over Flat Rock Creek?

The structure is 160 ft (48.8 m) long with a longest span of 35 ft (10.7 m) and a deck 84 ft wide.

Who owns SH 71 over Flat Rock Creek?

It is owned by the State Highway Agency.