US Bridges

SH 71 over Johnson Creek

Good

Llano County, Texas · 9.6 MI NW of SH 29 · Structure no. 141500057704016

Built
1965
60 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
59 ft
6 main spans
Daily traffic
2,467
2020 count
Owner
State
State Highway Agency

About this bridge

SH 71 over Johnson Creek is a concrete culvert carrying SH 71 over Johnson Creek in Llano County, Texas. It was built in 1965, so it is 60 years old, older 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 2,467 vehicles a day, roughly 22% of them trucks, projected to reach 2,810 by 2033. The structure is 59 ft (18 m) long and 49 ft wide. If it were closed, the detour would be 18 mi (29 km).

CarriesSH 71
CrossesJohnson Creek
Location9.6 MI NW of SH 29
RouteState Highway 71
StateTexas
Coordinates30.86133, -98.83163
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadOther
Structure length59 ft (18 m)
Longest span8 ft (2.4 m)
Deck width49 ft (15 m)
Roadway width42 ft (12.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,467 (2020)
Projected traffic2,810 by 2033
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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 SH 71 over Johnson Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is SH 71 over Johnson 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 May 2023.

How much traffic does SH 71 over Johnson Creek carry?

About 2,467 vehicles per day (2020 count), of which roughly 22% are trucks.

How long is SH 71 over Johnson Creek?

The structure is 59 ft (18 m) long with a longest span of 8 ft (2.4 m) and a deck 49 ft wide.

Who owns SH 71 over Johnson Creek?

It is owned by the State Highway Agency.