US Bridges

IH 35 Ml over RM 12

Good

Hays County, Texas · 1.2 MI S of SH 123 · Structure no. 141060001603204

Built
1996
29 years old
Condition
Good
inspected September 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
270 ft
3 main spans
Daily traffic
120,768
2023 count
Owner
State
State Highway Agency

About this bridge

IH 35 Ml over RM 12 is a prestressed concrete stringer/multi-beam or girder carrying IH 35 Ml over RM 12 in Hays County, Texas. It was built in 1996, so it is 29 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 120,768 vehicles a day, roughly 17% of them trucks, projected to reach 113,050 by 2033. The structure is 270 ft (82.3 m) long and 118 ft wide.

CarriesIH 35 Ml
CrossesRM 12
Location1.2 MI S of SH 123
RouteInterstate 35
StateTexas
Coordinates29.85687, -97.95323
Functional classUrban Principal Arterial - Interstate

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length270 ft (82.3 m)
Longest span90 ft (27.4 m)
Deck width118 ft (36 m)
Roadway width114 ft (34.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120,768 (2023)
Projected traffic113,050 by 2033
Trucks17%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 35 Ml over RM 12 built?

It was built in 1996, making it 29 years old in 2025.

What condition is IH 35 Ml over RM 12 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 2022.

How much traffic does IH 35 Ml over RM 12 carry?

About 120,768 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is IH 35 Ml over RM 12?

The structure is 270 ft (82.3 m) long with a longest span of 90 ft (27.4 m) and a deck 118 ft wide.

Who owns IH 35 Ml over RM 12?

It is owned by the State Highway Agency.