US Bridges

IH 35 over Col Ri/Lady Bird Lk/E Av

Fair

Travis County, Texas · 6.65 MI S of US 183 · Structure no. 142270001513096

Built
1954
71 years old, rebuilt 1982
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,052 ft
9 main spans
Daily traffic
129,685
2020 count
Owner
State
State Highway Agency

About this bridge

IH 35 over Col Ri/Lady Bird Lk/E Av is a steel continuous stringer/multi-beam or girder carrying IH 35 over Col Ri/Lady Bird Lk/E Av in Travis County, Texas. It was built in 1954 and reconstructed in 1982, so it is 71 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 129,685 vehicles a day, roughly 10% of them trucks, projected to reach 203,480 by 2036. The structure is 1,052 ft (320.7 m) long and 100 ft wide.

Location

Open in Google Maps
CarriesIH 35
CrossesCol Ri/Lady Bird Lk/E Av
Location6.65 MI S of US 183
RouteInterstate 35
CountyTravis County
StateTexas
Coordinates30.25069, -97.73592
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 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 evaluation6: Equal to present minimum criteria
Deck geometry5: 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 rating48 US tons
Inventory rating29 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans9
Design loadH 20
Structure length1,052 ft (320.7 m)
Longest span130 ft (39.6 m)
Deck width100 ft (30.5 m)
Roadway width95 ft (29 m)
Vertical clearance over deck16 ft (4.9 m)

Traffic and service

Average daily traffic129,685 (2020)
Projected traffic203,480 by 2036
Trucks10%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and waterway
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 over Col Ri/Lady Bird Lk/E Av built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1982.

What condition is IH 35 over Col Ri/Lady Bird Lk/E Av 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 over Col Ri/Lady Bird Lk/E Av carry?

About 129,685 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is IH 35 over Col Ri/Lady Bird Lk/E Av?

The structure is 1,052 ft (320.7 m) long with a longest span of 130 ft (39.6 m) and a deck 100 ft wide.

Who owns IH 35 over Col Ri/Lady Bird Lk/E Av?

It is owned by the State Highway Agency.