US Bridges

FM 346 over Mud Creek

Fair

Smith County, Texas · 4.2 MI N of SH 110 · Structure no. 102120049205012

Built
1954
71 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete
Length
125 ft
5 main spans
Daily traffic
2,365
2021 count
Owner
State
State Highway Agency

About this bridge

FM 346 over Mud Creek is a concrete slab carrying FM 346 over Mud Creek in Smith County, Texas. It was built in 1954, so it is 71 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 2,365 vehicles a day, roughly 5% of them trucks, projected to reach 3,311 by 2041. The structure is 125 ft (38.1 m) long and 25 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesFM 346
CrossesMud Creek
Location4.2 MI N of SH 110
RouteState Highway 346
CountySmith County
StateTexas
Coordinates32.19115, -95.15006
Functional classRural Major 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating27 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadOther
Structure length125 ft (38.1 m)
Longest span25 ft (7.6 m)
Deck width25 ft (7.7 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,365 (2021)
Projected traffic3,311 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$8,000
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 346 over Mud Creek built?

It was built in 1954, making it 71 years old in 2025.

What condition is FM 346 over 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 FM 346 over Mud Creek carry?

About 2,365 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is FM 346 over Mud Creek?

The structure is 125 ft (38.1 m) long with a longest span of 25 ft (7.6 m) and a deck 25 ft wide.

Who owns FM 346 over Mud Creek?

It is owned by the State Highway Agency.