US Bridges

RM 1431 over Powermill Creek

Fair

Burnet County, Texas · 11.0 MI W of US 281 · Structure no. 140270137804006

Built
1958
67 years old, rebuilt 1969
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
90 ft
3 main spans
Daily traffic
9,383
2020 count
Owner
State
State Highway Agency

About this bridge

RM 1431 over Powermill Creek is a concrete stringer/multi-beam or girder carrying RM 1431 over Powermill Creek in Burnet County, Texas. It was built in 1958 and reconstructed in 1969, so it is 67 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 9,383 vehicles a day, roughly 5% of them trucks, projected to reach 12,647 by 2039. The structure is 90 ft (27.4 m) long and 50 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesRM 1431
CrossesPowermill Creek
Location11.0 MI W of US 281
RouteState Highway 1431
CountyBurnet County
StateTexas
Coordinates30.6534, -98.42001
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 protection6 SatisfactoryStructural elements show some minor deterioration.
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating34.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length90 ft (27.4 m)
Longest span30 ft (9.1 m)
Deck width50 ft (15.3 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,383 (2020)
Projected traffic12,647 by 2039
Trucks5%
Lanes on structure4
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$11,000
NavigationNo navigation control on waterway

Frequently asked questions

When was RM 1431 over Powermill Creek built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1969.

What condition is RM 1431 over Powermill Creek 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 Powermill Creek carry?

About 9,383 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is RM 1431 over Powermill Creek?

The structure is 90 ft (27.4 m) long with a longest span of 30 ft (9.1 m) and a deck 50 ft wide.

Who owns RM 1431 over Powermill Creek?

It is owned by the State Highway Agency.