US Bridges

Sl 323 over W Mud CR TR

Fair

Smith County, Texas · 1.0 MI W of US 69 · Structure no. 102120207502007

Built
1956
69 years old, rebuilt 1998
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
43 ft
5 main spans
Daily traffic
38,634
2021 count
Owner
State
State Highway Agency

About this bridge

Sl 323 over W Mud CR TR is a concrete culvert carrying Sl 323 over W Mud CR TR in Smith County, Texas. It was built in 1956 and reconstructed in 1998, 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 38,634 vehicles a day, roughly 18% of them trucks, projected to reach 53,948 by 2041. The structure is 43 ft (13.1 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSl 323
CrossesW Mud CR TR
Location1.0 MI W of US 69
RouteState Highway 323
StateTexas
Coordinates32.30359, -95.31858
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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans5
Design loadUnknown
Structure length43 ft (13.1 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic38,634 (2021)
Projected traffic53,948 by 2041
Trucks18%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Sl 323 over W Mud CR TR built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1998.

What condition is Sl 323 over W Mud CR TR 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 2023.

How much traffic does Sl 323 over W Mud CR TR carry?

About 38,634 vehicles per day (2021 count), of which roughly 18% are trucks.

How long is Sl 323 over W Mud CR TR?

The structure is 43 ft (13.1 m) long with a longest span of 10 ft (3 m).

Who owns Sl 323 over W Mud CR TR?

It is owned by the State Highway Agency.