US Bridges

Lp 275 (lamar) over Walnut Creek

Fair

Travis County, Texas · 0.9 MI S of Parmer LN · Structure no. 142270001511052

Built
1934
91 years old, rebuilt 1986
Condition
Fair
inspected August 2023
Type
Tee Beam
Concrete
Length
138 ft
3 main spans
Daily traffic
23,522
2023 count
Owner
State
State Highway Agency

About this bridge

Lp 275 (lamar) over Walnut Creek is a concrete tee beam carrying Lp 275 (lamar) over Walnut Creek in Travis County, Texas. It was built in 1934 and reconstructed in 1986, so it is 91 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 23,522 vehicles a day, roughly 1% of them trucks, projected to reach 33,940 by 2033. The structure is 138 ft (42.1 m) long and 73 ft wide.

Location

Open in Google Maps
CarriesLp 275 (lamar)
CrossesWalnut Creek
Location0.9 MI S of Parmer LN
RouteState Highway 275
CountyTravis County
StateTexas
Coordinates30.39515, -97.68052
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53 US tons
Inventory rating32 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length138 ft (42.1 m)
Longest span46 ft (14 m)
Deck width73 ft (22.2 m)
Roadway width63 ft (19.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,522 (2023)
Projected traffic33,940 by 2033
Trucks1%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes

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 Lp 275 (lamar) over Walnut Creek built?

It was built in 1934, making it 91 years old in 2025. It was reconstructed in 1986.

What condition is Lp 275 (lamar) over Walnut 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 August 2023.

How much traffic does Lp 275 (lamar) over Walnut Creek carry?

About 23,522 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Lp 275 (lamar) over Walnut Creek?

The structure is 138 ft (42.1 m) long with a longest span of 46 ft (14 m) and a deck 73 ft wide.

Who owns Lp 275 (lamar) over Walnut Creek?

It is owned by the State Highway Agency.