US Bridges

RM 2338 over Cowan Creek

Fair

Williamson County, Texas · 1.7 MI NW of FM 3405 · Structure no. 142460221101005

Built
1957
68 years old, rebuilt 2011
Condition
Fair
inspected February 2023
Type
Culvert
Concrete
Length
90 ft
8 main spans
Daily traffic
3,119
2021 count
Owner
State
State Highway Agency

About this bridge

RM 2338 over Cowan Creek is a concrete culvert carrying RM 2338 over Cowan Creek in Williamson County, Texas. It was built in 1957 and reconstructed in 2011, so it is 68 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 3,119 vehicles a day, roughly 8% of them trucks, projected to reach 4,367 by 2041. The structure is 90 ft (27.4 m) long and 118 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesRM 2338
CrossesCowan Creek
Location1.7 MI NW of FM 3405
RouteState Highway 2338
CountyWilliamson County
StateTexas
Coordinates30.72958, -97.77969
Functional classUrban Collector

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.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans8
Design loadOther
Structure length90 ft (27.4 m)
Longest span10 ft (3.2 m)
Deck width118 ft (36 m)
Roadway width82 ft (25 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,119 (2021)
Projected traffic4,367 by 2041
Trucks8%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

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 RM 2338 over Cowan Creek built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 2011.

What condition is RM 2338 over Cowan 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 February 2023.

How much traffic does RM 2338 over Cowan Creek carry?

About 3,119 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is RM 2338 over Cowan Creek?

The structure is 90 ft (27.4 m) long with a longest span of 10 ft (3.2 m) and a deck 118 ft wide.

Who owns RM 2338 over Cowan Creek?

It is owned by the State Highway Agency.