US Bridges

FM 343 over Sulphur Creek

Good

Cherokee County, Texas · 1.10 MI NW of FM 851 · Structure no. 100370092601001

Built
1948
77 years old
Condition
Good
inspected January 2023
Type
Culvert
Concrete
Length
26 ft
3 main spans
Daily traffic
708
2021 count
Owner
State
State Highway Agency

About this bridge

FM 343 over Sulphur Creek is a concrete culvert carrying FM 343 over Sulphur Creek in Cherokee County, Texas. It was built in 1948, so it is 77 years old, older than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 708 vehicles a day, roughly 5% of them trucks, projected to reach 991 by 2041. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 6.8 mi (11 km).

CarriesFM 343
CrossesSulphur Creek
Location1.10 MI NW of FM 851
RouteState Highway 343
StateTexas
Coordinates31.77867, -95.01752
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length26 ft (7.9 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic708 (2021)
Projected traffic991 by 2041
Trucks5%
Lanes on structure2
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 FM 343 over Sulphur Creek built?

It was built in 1948, making it 77 years old in 2025.

What condition is FM 343 over Sulphur Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2023.

How much traffic does FM 343 over Sulphur Creek carry?

About 708 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is FM 343 over Sulphur Creek?

The structure is 26 ft (7.9 m) long with a longest span of 8 ft (2.4 m).

Who owns FM 343 over Sulphur Creek?

It is owned by the State Highway Agency.