US Bridges

Bois Darc Lane over Cottonwood Creek

Fair

Travis County, Texas · 0.10 MI S of Kimbro West · Structure no. 142270AA1536001

Built
1962
63 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
54 ft
1 main span
Daily traffic
538
2020 count
Owner
County
County Highway Agency

About this bridge

Bois Darc Lane over Cottonwood Creek is a steel stringer/multi-beam or girder carrying Bois Darc Lane over Cottonwood Creek in Travis County, Texas. It was built in 1962, so it is 63 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 538 vehicles a day, roughly 3% of them trucks, projected to reach 200 by 2027. The structure is 54 ft (16.5 m) long and 25 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesBois Darc Lane
CrossesCottonwood Creek
Location0.10 MI S of Kimbro West
RouteCounty Highway 139
CountyTravis County
StateTexas
Coordinates30.37831, -97.48896
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+1 approach)
Design loadUnknown
Structure length54 ft (16.5 m)
Longest span31 ft (9.4 m)
Deck width25 ft (7.6 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic538 (2020)
Projected traffic200 by 2027
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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$81,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Bois Darc Lane over Cottonwood Creek built?

It was built in 1962, making it 63 years old in 2025.

What condition is Bois Darc Lane over Cottonwood 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 April 2024.

How much traffic does Bois Darc Lane over Cottonwood Creek carry?

About 538 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is Bois Darc Lane over Cottonwood Creek?

The structure is 54 ft (16.5 m) long with a longest span of 31 ft (9.4 m) and a deck 25 ft wide.

Who owns Bois Darc Lane over Cottonwood Creek?

It is owned by the County Highway Agency.