US Bridges

US 183 over N Fork Brushy Creek

Fair

Williamson County, Texas · 4.40 MI S of SH 29 · Structure no. 142460015104032

Built
1956
69 years old, rebuilt 2007
Condition
Fair
inspected February 2023
Type
Culvert
Concrete
Length
111 ft
9 main spans
Daily traffic
21,083
2023 count
Owner
State
State Highway Agency

About this bridge

US 183 over N Fork Brushy Creek is a concrete culvert carrying US 183 over N Fork Brushy Creek in Williamson County, Texas. It was built in 1956 and reconstructed in 2007, so it is 69 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 21,083 vehicles a day, roughly 5% of them trucks, projected to reach 28,314 by 2039. The structure is 111 ft (33.8 m) long and 75 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 183
CrossesN Fork Brushy Creek
Location4.40 MI S of SH 29
RouteU.S. Route 183
StateTexas
Coordinates30.59206, -97.85887
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
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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 spans9
Design loadOther
Structure length111 ft (33.8 m)
Longest span8 ft (2.4 m)
Deck width75 ft (23 m)
Roadway width70 ft (21.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,083 (2023)
Projected traffic28,314 by 2039
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
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 US 183 over N Fork Brushy Creek built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 2007.

What condition is US 183 over N Fork Brushy 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 US 183 over N Fork Brushy Creek carry?

About 21,083 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is US 183 over N Fork Brushy Creek?

The structure is 111 ft (33.8 m) long with a longest span of 8 ft (2.4 m) and a deck 75 ft wide.

Who owns US 183 over N Fork Brushy Creek?

It is owned by the State Highway Agency.