US Bridges

Kamas RD over Williams Creek

Good

Austin County, Texas · .55 MI S of N Oilfield RD · Structure no. 130080AA0249001

Built
2002
23 years old
Condition
Good
inspected January 2024
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
16
2022 count
Owner
County
County Highway Agency

About this bridge

Kamas RD over Williams Creek is a concrete culvert carrying Kamas RD over Williams Creek in Austin County, Texas. It was built in 2002, so it is 23 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 16 vehicles a day, roughly 3% of them trucks, projected to reach 90 by 2042. The structure is 23 ft (7 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesKamas RD
CrossesWilliams Creek
Location.55 MI S of N Oilfield RD
RouteCounty Highway 0
StateTexas
Coordinates30.07002, -96.47834
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16 (2022)
Projected traffic90 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Kamas RD over Williams Creek built?

It was built in 2002, making it 23 years old in 2025.

What condition is Kamas RD over Williams Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2024.

How much traffic does Kamas RD over Williams Creek carry?

About 16 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Kamas RD over Williams Creek?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m) and a deck 28 ft wide.

Who owns Kamas RD over Williams Creek?

It is owned by the County Highway Agency.