US Bridges

5th/6th Sts over Johnson Creek

Good

Travis County, Texas · 0.1 MI E of Loop 1 · Structure no. 142270313601038

Built
1975
50 years old
Condition
Good
inspected July 2023
Type
Culvert
Concrete
Length
44 ft
4 main spans
Daily traffic
134,441
2020 count
Owner
State
State Highway Agency

About this bridge

5th/6th Sts over Johnson Creek is a concrete culvert carrying 5th/6th Sts over Johnson Creek in Travis County, Texas. It was built in 1975, so it is 50 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 134,441 vehicles a day, roughly 2% of them trucks, projected to reach 171,790 by 2033. The structure is 44 ft (13.4 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

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Carries5th/6th Sts
CrossesJohnson Creek
Location0.1 MI E of Loop 1
RouteState Highway 1
CountyTravis County
StateTexas
Coordinates30.27671, -97.7685
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic134,441 (2020)
Projected traffic171,790 by 2033
Trucks2%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byLocal Toll Authority
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$5,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 5th/6th Sts over Johnson Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is 5th/6th Sts 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 July 2023.

How much traffic does 5th/6th Sts over Johnson Creek carry?

About 134,441 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is 5th/6th Sts over Johnson Creek?

The structure is 44 ft (13.4 m) long with a longest span of 10 ft (3 m).

Who owns 5th/6th Sts over Johnson Creek?

It is owned by the State Highway Agency and maintained by the Local Toll Authority.