US Bridges

FM 308 over Ash Creek

Fair

Hill County, Texas · 0.6 MI S of SH 171 · Structure no. 091100083403009

Built
1949
76 years old, rebuilt 1962
Condition
Fair
inspected January 2023
Type
Slab
Concrete
Length
575 ft
23 main spans
Daily traffic
740
2020 count
Owner
State
State Highway Agency

About this bridge

FM 308 over Ash Creek is a concrete slab carrying FM 308 over Ash Creek in Hill County, Texas. It was built in 1949 and reconstructed in 1962, 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 fair condition with a lowest component rating of 5 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 740 vehicles a day, roughly 7% of them trucks, projected to reach 1,530 by 2033. The structure is 575 ft (175.3 m) long and 25 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesFM 308
CrossesAsh Creek
Location0.6 MI S of SH 171
RouteState Highway 308
CountyHill County
StateTexas
Coordinates31.90894, -96.90002
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; extensive scour has occurred
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating61.9 US tons
Inventory rating32 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans23
Design loadH 15
Structure length575 ft (175.3 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 traffic740 (2020)
Projected traffic1,530 by 2033
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$4 million
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 308 over Ash Creek built?

It was built in 1949, making it 76 years old in 2025. It was reconstructed in 1962.

What condition is FM 308 over Ash 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 January 2023.

How much traffic does FM 308 over Ash Creek carry?

About 740 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is FM 308 over Ash Creek?

The structure is 575 ft (175.3 m) long with a longest span of 25 ft (7.6 m) and a deck 25 ft wide.

Who owns FM 308 over Ash Creek?

It is owned by the State Highway Agency.