US Bridges

RM 12 over Purgatory Creek Branch

Fair

Hays County, Texas · 2.0 MI NW of FM 2439 · Structure no. 141060337901207

Built
2010
15 years old
Condition
Fair
inspected June 2024
Type
Culvert
Concrete
Length
31 ft
3 main spans
Daily traffic
13,641
2022 count
Owner
State
State Highway Agency

About this bridge

RM 12 over Purgatory Creek Branch is a concrete culvert carrying RM 12 over Purgatory Creek Branch in Hays County, Texas. It was built in 2010, so it is 15 years old, younger 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 13,641 vehicles a day, roughly 5% of them trucks, projected to reach 16,621 by 2039. The structure is 31 ft (9.3 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesRM 12
CrossesPurgatory Creek Branch
Location2.0 MI NW of FM 2439
RouteState Highway 12
StateTexas
Coordinates29.88804, -97.98053
Functional classUrban Minor Arterial

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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length31 ft (9.3 m)
Longest span9 ft (2.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,641 (2022)
Projected traffic16,621 by 2039
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was RM 12 over Purgatory Creek Branch built?

It was built in 2010, making it 15 years old in 2025.

What condition is RM 12 over Purgatory Creek Branch 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 12 over Purgatory Creek Branch carry?

About 13,641 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is RM 12 over Purgatory Creek Branch?

The structure is 31 ft (9.3 m) long with a longest span of 9 ft (2.8 m).

Who owns RM 12 over Purgatory Creek Branch?

It is owned by the State Highway Agency.