US Bridges

FM 2309 over Six Mile Creek

Good

McCulloch County, Texas · 0.10 MI N of SH 71 · Structure no. 231600110201001

Built
1949
76 years old, rebuilt 1985
Condition
Good
inspected April 2024
Type
Slab
Concrete
Length
75 ft
3 main spans
Daily traffic
564
2020 count
Owner
State
State Highway Agency

About this bridge

FM 2309 over Six Mile Creek is a concrete slab carrying FM 2309 over Six Mile Creek in McCulloch County, Texas. It was built in 1949 and reconstructed in 1985, so it is 76 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 564 vehicles a day, roughly 22% of them trucks, projected to reach 1,905 by 2038. The structure is 75 ft (22.9 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesFM 2309
CrossesSix Mile Creek
Location0.10 MI N of SH 71
RouteState Highway 2309
StateTexas
Coordinates31.08543, -99.29204
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating34.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 10
Structure length75 ft (22.9 m)
Longest span25 ft (7.6 m)
Deck width36 ft (11 m)
Roadway width34 ft (10.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic564 (2020)
Projected traffic1,905 by 2038
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 2309 over Six Mile Creek built?

It was built in 1949, making it 76 years old in 2025. It was reconstructed in 1985.

What condition is FM 2309 over Six Mile 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 April 2024.

How much traffic does FM 2309 over Six Mile Creek carry?

About 564 vehicles per day (2020 count), of which roughly 22% are trucks.

How long is FM 2309 over Six Mile Creek?

The structure is 75 ft (22.9 m) long with a longest span of 25 ft (7.6 m) and a deck 36 ft wide.

Who owns FM 2309 over Six Mile Creek?

It is owned by the State Highway Agency.