US Bridges

RM 1431 over L.B.J. Lake

Fair

Burnet County, Texas · 11.7 MI W of US 281 · Structure no. 140270137804013

Built
1964
61 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
782 ft
12 main spans
Daily traffic
15,742
2023 count
Owner
State
State Highway Agency

About this bridge

RM 1431 over L.B.J. Lake is a prestressed concrete stringer/multi-beam or girder carrying RM 1431 over L.B.J. Lake in Burnet County, Texas. It was built in 1964, so it is 61 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 15,742 vehicles a day, projected to reach 14,240 by 2031. The structure is 782 ft (238.4 m) long and 31 ft wide.

Location

Open in Google Maps
CarriesRM 1431
CrossesL.B.J. Lake
Location11.7 MI W of US 281
RouteState Highway 1431
CountyBurnet County
StateTexas
Coordinates30.65799, -98.42886
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73 US tons
Inventory rating30 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans12
Design loadH 20
Structure length782 ft (238.4 m)
Longest span65 ft (19.8 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,742 (2023)
Projected traffic14,240 by 2031
Trucks0%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was RM 1431 over L.B.J. Lake built?

It was built in 1964, making it 61 years old in 2025.

What condition is RM 1431 over L.B.J. Lake 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 2023.

How much traffic does RM 1431 over L.B.J. Lake carry?

About 15,742 vehicles per day (2023 count).

How long is RM 1431 over L.B.J. Lake?

The structure is 782 ft (238.4 m) long with a longest span of 65 ft (19.8 m) and a deck 31 ft wide.

Who owns RM 1431 over L.B.J. Lake?

It is owned by the State Highway Agency.