US Bridges

FM 308 over White Rock Creek

Fair

McLennan County, Texas · 1.60 MI SW of IH 35 · Structure no. 091610083405027

Built
1971
54 years old, rebuilt 1978
Condition
Fair
inspected January 2023
Type
Tee Beam
Concrete
Length
150 ft
5 main spans
Daily traffic
4,167
2020 count
Owner
State
State Highway Agency

About this bridge

FM 308 over White Rock Creek is a concrete tee beam carrying FM 308 over White Rock Creek in McLennan County, Texas. It was built in 1971 and reconstructed in 1978, so it is 54 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 4,167 vehicles a day, roughly 11% of them trucks, projected to reach 5,880 by 2033. The structure is 150 ft (45.7 m) long and 36 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesFM 308
CrossesWhite Rock Creek
Location1.60 MI SW of IH 35
RouteState Highway 308
CountyMcLennan County
StateTexas
Coordinates31.65938, -97.1226
Functional classUrban Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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
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 typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadUnknown
Structure length150 ft (45.7 m)
Longest span30 ft (9.1 m)
Deck width36 ft (11 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,167 (2020)
Projected traffic5,880 by 2033
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$1.1 million
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 308 over White Rock Creek built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 1978.

What condition is FM 308 over White Rock 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 White Rock Creek carry?

About 4,167 vehicles per day (2020 count), of which roughly 11% are trucks.

How long is FM 308 over White Rock Creek?

The structure is 150 ft (45.7 m) long with a longest span of 30 ft (9.1 m) and a deck 36 ft wide.

Who owns FM 308 over White Rock Creek?

It is owned by the State Highway Agency.