US Bridges

RM 12 over Purgatory Creek

Good

Hays County, Texas · 0.5 MI NW of FM 2439 · Structure no. 141060337901209

Built
2010
15 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
2,350 ft
1 main span
Daily traffic
9,890
2020 count
Owner
State
State Highway Agency

About this bridge

RM 12 over Purgatory Creek is a prestressed concrete stringer/multi-beam or girder carrying RM 12 over Purgatory Creek 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 9,890 vehicles a day, projected to reach 17,620 by 2031. The structure is 2,350 ft (716.3 m) long and 70 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesRM 12
CrossesPurgatory Creek
Location0.5 MI NW of FM 2439
RouteState Highway 12
CountyHays County
StateTexas
Coordinates29.87066, -97.966
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+20 approach)
Design loadHL 93
Structure length2,350 ft (716.3 m)
Longest span150 ft (45.7 m)
Deck width70 ft (21.3 m)
Roadway width67 ft (20.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,890 (2020)
Projected traffic17,620 by 2031
Trucks0%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 built?

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

What condition is RM 12 over Purgatory Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does RM 12 over Purgatory Creek carry?

About 9,890 vehicles per day (2020 count).

How long is RM 12 over Purgatory Creek?

The structure is 2,350 ft (716.3 m) long with a longest span of 150 ft (45.7 m) and a deck 70 ft wide.

Who owns RM 12 over Purgatory Creek?

It is owned by the State Highway Agency.