US Bridges

RM 2389 over Llano River

Fair

Mason County, Texas · 4.40 MI SW of RM 1723 · Structure no. 141570268801002

Built
1962
63 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
43 ft
5 main spans
Daily traffic
317
2020 count
Owner
State
State Highway Agency

About this bridge

RM 2389 over Llano River is a concrete culvert carrying RM 2389 over Llano River in Mason County, Texas. It was built in 1962, so it is 63 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 317 vehicles a day, roughly 3% of them trucks, projected to reach 300 by 2033. The structure is 43 ft (13.1 m) long and 33 ft wide.

Location

Open in Google Maps
CarriesRM 2389
CrossesLlano River
Location4.40 MI SW of RM 1723
RouteState Highway 2389
CountyMason County
StateTexas
Coordinates30.65017, -99.2507
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length43 ft (13.1 m)
Longest span8 ft (2.4 m)
Deck width33 ft (10.2 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic317 (2020)
Projected traffic300 by 2033
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$3,000
NavigationNo navigation control on waterway

Frequently asked questions

When was RM 2389 over Llano River built?

It was built in 1962, making it 63 years old in 2025.

What condition is RM 2389 over 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 2023.

How much traffic does RM 2389 over Llano River carry?

About 317 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is RM 2389 over Llano River?

The structure is 43 ft (13.1 m) long with a longest span of 8 ft (2.4 m) and a deck 33 ft wide.

Who owns RM 2389 over Llano River?

It is owned by the State Highway Agency.