US Bridges

FM 109 over Williams Creek

Good

Austin County, Texas · 2.35 MI NE of FM 2502 · Structure no. 130080071601013

Built
1995
30 years old
Condition
Good
inspected December 2023
Type
Culvert
Concrete
Length
85 ft
5 main spans
Daily traffic
2,828
2022 count
Owner
State
State Highway Agency

About this bridge

FM 109 over Williams Creek is a concrete culvert carrying FM 109 over Williams Creek in Austin County, Texas. It was built in 1995, so it is 30 years old, younger 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 2,828 vehicles a day, roughly 11% of them trucks, projected to reach 3,676 by 2042. The structure is 85 ft (25.9 m) long and 44 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesFM 109
CrossesWilliams Creek
Location2.35 MI NE of FM 2502
RouteState Highway 109
StateTexas
Coordinates30.06291, -96.45885
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length85 ft (25.9 m)
Longest span10 ft (3 m)
Deck width44 ft (13.4 m)
Roadway width41 ft (12.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,828 (2022)
Projected traffic3,676 by 2042
Trucks11%
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 109 over Williams Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is FM 109 over Williams 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 December 2023.

How much traffic does FM 109 over Williams Creek carry?

About 2,828 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is FM 109 over Williams Creek?

The structure is 85 ft (25.9 m) long with a longest span of 10 ft (3 m) and a deck 44 ft wide.

Who owns FM 109 over Williams Creek?

It is owned by the State Highway Agency.