US Bridges

IH 35 over Manchaca Creek

Fair

Travis County, Texas · 0.185 MI N of Hays C/L · Structure no. 142270001601005

Built
1933
92 years old, rebuilt 2008
Condition
Fair
inspected September 2024
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
135,535
2023 count
Owner
State
State Highway Agency

About this bridge

IH 35 over Manchaca Creek is a concrete culvert carrying IH 35 over Manchaca Creek in Travis County, Texas. It was built in 1933 and reconstructed in 2008, so it is 92 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 135,535 vehicles a day, roughly 15% of them trucks, projected to reach 189,749 by 2042. The structure is 22 ft (6.7 m) long.

Location

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CarriesIH 35
CrossesManchaca Creek
Location0.185 MI N of Hays C/L
RouteInterstate 35
CountyTravis County
StateTexas
Coordinates30.10128, -97.81222
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length22 ft (6.7 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 traffic135,535 (2023)
Projected traffic189,749 by 2042
Trucks15%
Lanes on structure12
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$3,000
NavigationNo navigation control on waterway

Frequently asked questions

When was IH 35 over Manchaca Creek built?

It was built in 1933, making it 92 years old in 2025. It was reconstructed in 2008.

What condition is IH 35 over Manchaca Creek 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 September 2024.

How much traffic does IH 35 over Manchaca Creek carry?

About 135,535 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is IH 35 over Manchaca Creek?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns IH 35 over Manchaca Creek?

It is owned by the State Highway Agency.