US Bridges

Helen ST over Tannehill Branch

Good

Travis County, Texas · 0.20 MI N of 53 1/2 ST · Structure no. 142270B00715001

Built
1956
69 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
27
2015 count
Owner
City
City or Municipal Highway Agency

About this bridge

Helen ST over Tannehill Branch is a concrete culvert carrying Helen ST over Tannehill Branch in Travis County, Texas. It was built in 1956, so it is 69 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 27 vehicles a day, projected to reach 900 by 2034. The structure is 24 ft (7.3 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesHelen ST
CrossesTannehill Branch
Location0.20 MI N of 53 1/2 ST
RouteCity Street 0
StateTexas
Coordinates30.31649, -97.71173
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 inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span10 ft (3 m)
Deck width42 ft (12.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27 (2015)
Projected traffic900 by 2034
Trucks0%
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 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 Helen ST over Tannehill Branch built?

It was built in 1956, making it 69 years old in 2025.

What condition is Helen ST over Tannehill Branch 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 March 2024.

How much traffic does Helen ST over Tannehill Branch carry?

About 27 vehicles per day (2015 count).

How long is Helen ST over Tannehill Branch?

The structure is 24 ft (7.3 m) long with a longest span of 10 ft (3 m) and a deck 42 ft wide.

Who owns Helen ST over Tannehill Branch?

It is owned by the City or Municipal Highway Agency.