US Bridges

IH 35 Ml & FR over Tannehill Br

Fair

Travis County, Texas · 0.7 MI S of US 290 E · Structure no. 142270001513082

Built
1953
72 years old, rebuilt 1977
Condition
Fair
inspected August 2023
Type
Culvert
Concrete
Length
162 ft
5 main spans
Daily traffic
170,802
2020 count
Owner
State
State Highway Agency

About this bridge

IH 35 Ml & FR over Tannehill Br is a concrete culvert carrying IH 35 Ml & FR over Tannehill Br in Travis County, Texas. It was built in 1953 and reconstructed in 1977, so it is 72 years old, older than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 170,802 vehicles a day, roughly 12% of them trucks, projected to reach 259,640 by 2033. The structure is 162 ft (49.4 m) long.

Location

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CarriesIH 35 Ml & FR
CrossesTannehill Br
Location0.7 MI S of US 290 E
RouteInterstate 35
CountyTravis County
StateTexas
Coordinates30.31305, -97.70849
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans5
Design loadOther
Structure length162 ft (49.4 m)
Longest span7 ft (2.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic170,802 (2020)
Projected traffic259,640 by 2033
Trucks12%
Lanes on structure15
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 IH 35 Ml & FR over Tannehill Br built?

It was built in 1953, making it 72 years old in 2025. It was reconstructed in 1977.

What condition is IH 35 Ml & FR over Tannehill Br in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2023.

How much traffic does IH 35 Ml & FR over Tannehill Br carry?

About 170,802 vehicles per day (2020 count), of which roughly 12% are trucks.

How long is IH 35 Ml & FR over Tannehill Br?

The structure is 162 ft (49.4 m) long with a longest span of 7 ft (2.1 m).

Who owns IH 35 Ml & FR over Tannehill Br?

It is owned by the State Highway Agency.