US Bridges

County Line RD over Branch of Big Dry Creek

Fair

Travis County, Texas · 0.7 MI S of Lund Carlson · Structure no. 142270AA1519007

Built
1958
67 years old
Condition
Fair
inspected March 2024
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
300
2010 count
Owner
County
County Highway Agency

About this bridge

County Line RD over Branch of Big Dry Creek is a concrete culvert carrying County Line RD over Branch of Big Dry Creek in Travis County, Texas. It was built in 1958, so it is 67 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 5 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 300 vehicles a day, projected to reach 600 by 2032. The structure is 32 ft (9.8 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCounty Line RD
CrossesBranch of Big Dry Creek
Location0.7 MI S of Lund Carlson
RouteCounty Highway 0
CountyTravis County
StateTexas
Coordinates30.39019, -97.38805
Functional classRural Local

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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
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
Deck geometry4: Meets minimum tolerable limits to be left in place as is
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 spans3
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2010)
Projected traffic600 by 2032
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$54,000
NavigationNo navigation control on waterway

Frequently asked questions

When was County Line RD over Branch of Big Dry Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is County Line RD over Branch of Big Dry 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 March 2024.

How much traffic does County Line RD over Branch of Big Dry Creek carry?

About 300 vehicles per day (2010 count).

How long is County Line RD over Branch of Big Dry Creek?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m) and a deck 24 ft wide.

Who owns County Line RD over Branch of Big Dry Creek?

It is owned by the County Highway Agency.