US Bridges

FM 3115 over Colorado River

Good

Runnels County, Texas · 2.71 MI S of SH 158 · Structure no. 072000314101002

Built
1969
56 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
240 ft
2 main spans
Daily traffic
334
2020 count
Owner
State
State Highway Agency

About this bridge

FM 3115 over Colorado River is a prestressed concrete stringer/multi-beam or girder carrying FM 3115 over Colorado River in Runnels County, Texas. It was built in 1969, so it is 56 years old, older 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 334 vehicles a day, roughly 6% of them trucks, projected to reach 230 by 2033. The structure is 240 ft (73.2 m) long and 29 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesFM 3115
CrossesColorado River
Location2.71 MI S of SH 158
RouteState Highway 3115
StateTexas
Coordinates31.7925, -100.18467
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53 US tons
Inventory rating30 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadH 15
Structure length240 ft (73.2 m)
Longest span70 ft (21.3 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic334 (2020)
Projected traffic230 by 2033
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 3115 over Colorado River built?

It was built in 1969, making it 56 years old in 2025.

What condition is FM 3115 over Colorado River 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 March 2024.

How much traffic does FM 3115 over Colorado River carry?

About 334 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is FM 3115 over Colorado River?

The structure is 240 ft (73.2 m) long with a longest span of 70 ft (21.3 m) and a deck 29 ft wide.

Who owns FM 3115 over Colorado River?

It is owned by the State Highway Agency.