US Bridges

IH 35 Nb-Sb Ta over IH 35

Good

Williamson County, Texas · 1.3 MI N of US 79 · Structure no. 142460001509686

Built
2018
7 years old
Condition
Good
inspected March 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
251 ft
2 main spans
Daily traffic
10,000
2018 count
Owner
State
State Highway Agency

About this bridge

IH 35 Nb-Sb Ta over IH 35 is a prestressed concrete box beam or girders - multiple carrying IH 35 Nb-Sb Ta over IH 35 in Williamson County, Texas. It was built in 2018, so it is 7 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 10,000 vehicles a day, roughly 1% of them trucks, projected to reach 1 by 1900. The structure is 251 ft (76.5 m) long and 30 ft wide.

CarriesIH 35 Nb-Sb Ta
CrossesIH 35
Location1.3 MI N of US 79
RouteState Highway 3406
StateTexas
Coordinates30.53502, -97.69203
Functional classUrban Minor 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.
Substructure8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length251 ft (76.5 m)
Longest span126 ft (38.4 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,000 (2018)
Projected traffic1 by 1900
Trucks1%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

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 Nb-Sb Ta over IH 35 built?

It was built in 2018, making it 7 years old in 2025.

What condition is IH 35 Nb-Sb Ta over IH 35 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 March 2023.

How much traffic does IH 35 Nb-Sb Ta over IH 35 carry?

About 10,000 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is IH 35 Nb-Sb Ta over IH 35?

The structure is 251 ft (76.5 m) long with a longest span of 126 ft (38.4 m) and a deck 30 ft wide.

Who owns IH 35 Nb-Sb Ta over IH 35?

It is owned by the State Highway Agency.