US Bridges

FM 108 over Elm Creek Relief

Good

Gonzales County, Texas · 0.95 MI S of US 87 · Structure no. 130900071502029

Built
2020
5 years old
Condition
Good
inspected December 2024
Type
Other
Prestressed Concrete
Length
90 ft
3 main spans
Daily traffic
1,941
2023 count
Owner
State
State Highway Agency

About this bridge

FM 108 over Elm Creek Relief is a prestressed concrete other carrying FM 108 over Elm Creek Relief in Gonzales County, Texas. It was built in 2020, so it is 5 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 1,941 vehicles a day, roughly 17% of them trucks, projected to reach 2,717 by 2042. The structure is 90 ft (27.4 m) long and 46 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesFM 108
CrossesElm Creek Relief
Location0.95 MI S of US 87
RouteState Highway 108
StateTexas
Coordinates29.25417, -97.63958
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeOther
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length90 ft (27.4 m)
Longest span30 ft (9.1 m)
Deck width46 ft (14.1 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,941 (2023)
Projected traffic2,717 by 2042
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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 108 over Elm Creek Relief built?

It was built in 2020, making it 5 years old in 2025.

What condition is FM 108 over Elm Creek Relief 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 2024.

How much traffic does FM 108 over Elm Creek Relief carry?

About 1,941 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is FM 108 over Elm Creek Relief?

The structure is 90 ft (27.4 m) long with a longest span of 30 ft (9.1 m) and a deck 46 ft wide.

Who owns FM 108 over Elm Creek Relief?

It is owned by the State Highway Agency.