US Bridges

Baythorne DR over Onion Creek

Good

Travis County, Texas · 2.7 MI W of IH 35 · Structure no. 142270B07027001

Built
2016
9 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete
Length
38 ft
4 main spans
Daily traffic
467
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Baythorne DR over Onion Creek is a concrete culvert carrying Baythorne DR over Onion Creek in Travis County, Texas. It was built in 2016, so it is 9 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 467 vehicles a day, roughly 3% of them trucks, projected to reach 4,000 by 2036. The structure is 38 ft (11.6 m) long and 77 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesBaythorne DR
CrossesOnion Creek
Location2.7 MI W of IH 35
RouteCity Street 0
StateTexas
Coordinates30.15319, -97.75313
Functional classUrban Local

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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span8 ft (2.4 m)
Deck width77 ft (23.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic467 (2020)
Projected traffic4,000 by 2036
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Baythorne DR over Onion Creek built?

It was built in 2016, making it 9 years old in 2025.

What condition is Baythorne DR over Onion 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 2024.

How much traffic does Baythorne DR over Onion Creek carry?

About 467 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is Baythorne DR over Onion Creek?

The structure is 38 ft (11.6 m) long with a longest span of 8 ft (2.4 m) and a deck 77 ft wide.

Who owns Baythorne DR over Onion Creek?

It is owned by the City or Municipal Highway Agency.