US Bridges

RM 3130 over Dry Llano River

Fair

Sutton County, Texas · 7.30 MI E of IH 10 · Structure no. 072180014116020

Built
1934
91 years old
Condition
Fair
inspected June 2024
Type
Tee Beam
Concrete
Length
485 ft
17 main spans
Daily traffic
25
2022 count
Owner
State
State Highway Agency

About this bridge

RM 3130 over Dry Llano River is a concrete tee beam carrying RM 3130 over Dry Llano River in Sutton County, Texas. It was built in 1934, so it is 91 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 5 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 25 vehicles a day, roughly 4% of them trucks, projected to reach 35 by 2038. The structure is 485 ft (147.7 m) long and 26 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesRM 3130
CrossesDry Llano River
Location7.30 MI E of IH 10
RouteState Highway 3130
CountySutton County
StateTexas
Coordinates30.44563, -100.21373
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating40 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans17
Design loadH 15
Structure length485 ft (147.7 m)
Longest span29 ft (8.7 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2022)
Projected traffic35 by 2038
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 RM 3130 over Dry Llano River built?

It was built in 1934, making it 91 years old in 2025.

What condition is RM 3130 over Dry Llano 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 June 2024.

How much traffic does RM 3130 over Dry Llano River carry?

About 25 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is RM 3130 over Dry Llano River?

The structure is 485 ft (147.7 m) long with a longest span of 29 ft (8.7 m) and a deck 26 ft wide.

Who owns RM 3130 over Dry Llano River?

It is owned by the State Highway Agency.