US Bridges

IH 35 Ml over FM 306

Good

Comal County, Texas · 2.0 MI NE of SH 46 · Structure no. 150460001604239

Built
2008
17 years old
Condition
Good
inspected June 2022
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
300 ft
3 main spans
Daily traffic
112,918
2020 count
Owner
State
State Highway Agency

About this bridge

IH 35 Ml over FM 306 is a prestressed concrete box beam or girders - multiple carrying IH 35 Ml over FM 306 in Comal County, Texas. It was built in 2008, so it is 17 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 112,918 vehicles a day, roughly 20% of them trucks, projected to reach 95,200 by 2030. The structure is 300 ft (91.4 m) long and 122 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIH 35 Ml
CrossesFM 306
Location2.0 MI NE of SH 46
RouteInterstate 35
StateTexas
Coordinates29.72907, -98.07822
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 inspectionJune 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 length300 ft (91.4 m)
Longest span100 ft (30.5 m)
Deck width122 ft (37.3 m)
Roadway width118 ft (36.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic112,918 (2020)
Projected traffic95,200 by 2030
Trucks20%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
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 FM 306 built?

It was built in 2008, making it 17 years old in 2025.

What condition is IH 35 Ml over FM 306 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 June 2022.

How much traffic does IH 35 Ml over FM 306 carry?

About 112,918 vehicles per day (2020 count), of which roughly 20% are trucks.

How long is IH 35 Ml over FM 306?

The structure is 300 ft (91.4 m) long with a longest span of 100 ft (30.5 m) and a deck 122 ft wide.

Who owns IH 35 Ml over FM 306?

It is owned by the State Highway Agency.