US Bridges

Sl 323 over West Mud Creek

Fair

Smith County, Texas · 0.3 MI E of US 69 · Structure no. 102120207502005

Built
1957
68 years old, rebuilt 1967
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
67 ft
6 main spans
Daily traffic
33,347
2018 count
Owner
State
State Highway Agency

About this bridge

Sl 323 over West Mud Creek is a concrete culvert carrying Sl 323 over West Mud Creek in Smith County, Texas. It was built in 1957 and reconstructed in 1967, 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 33,347 vehicles a day, roughly 20% of them trucks, projected to reach 51,980 by 2033. The structure is 67 ft (20.4 m) long and 121 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSl 323
CrossesWest Mud Creek
Location0.3 MI E of US 69
RouteState Highway 323
CountySmith County
StateTexas
Coordinates32.303, -95.2947
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
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
DeckConcrete, cast-in-place
Main spans6
Design loadUnknown
Structure length67 ft (20.4 m)
Longest span10 ft (3 m)
Deck width121 ft (37 m)
Roadway width85 ft (25.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33,347 (2018)
Projected traffic51,980 by 2033
Trucks20%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 West Mud Creek built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 1967.

What condition is Sl 323 over West Mud 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 March 2023.

How much traffic does Sl 323 over West Mud Creek carry?

About 33,347 vehicles per day (2018 count), of which roughly 20% are trucks.

How long is Sl 323 over West Mud Creek?

The structure is 67 ft (20.4 m) long with a longest span of 10 ft (3 m) and a deck 121 ft wide.

Who owns Sl 323 over West Mud Creek?

It is owned by the State Highway Agency.