US Bridges

FM 337 over Sabinal River

Fair

Bandera County, Texas · 0.1 MI E of FM 187 · Structure no. 150100085504019

Built
1980
45 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
280 ft
4 main spans
Daily traffic
716
2020 count
Owner
State
State Highway Agency

About this bridge

FM 337 over Sabinal River is a prestressed concrete stringer/multi-beam or girder carrying FM 337 over Sabinal River in Bandera County, Texas. It was built in 1980, so it is 45 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 716 vehicles a day, roughly 16% of them trucks, projected to reach 400 by 2033. The structure is 280 ft (85.3 m) long and 28 ft wide. If it were closed, the detour would be 28 mi (45 km).

CarriesFM 337
CrossesSabinal River
Location0.1 MI E of FM 187
RouteState Highway 337
StateTexas
Coordinates29.74429, -99.55369
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating25 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length280 ft (85.3 m)
Longest span70 ft (21.3 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic716 (2020)
Projected traffic400 by 2033
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed28 mi (45 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 337 over Sabinal River built?

It was built in 1980, making it 45 years old in 2025.

What condition is FM 337 over Sabinal River 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 May 2024.

How much traffic does FM 337 over Sabinal River carry?

About 716 vehicles per day (2020 count), of which roughly 16% are trucks.

How long is FM 337 over Sabinal River?

The structure is 280 ft (85.3 m) long with a longest span of 70 ft (21.3 m) and a deck 28 ft wide.

Who owns FM 337 over Sabinal River?

It is owned by the State Highway Agency.