US Bridges

IH 35 Nbfr over South San Gabriel River

Good

Williamson County, Texas · 0.3 MI N of FM 2243 · Structure no. 142460001508637

Built
2015
10 years old
Condition
Good
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
600 ft
5 main spans
Daily traffic
27,254
2021 count
Owner
State
State Highway Agency

About this bridge

IH 35 Nbfr over South San Gabriel River is a prestressed concrete stringer/multi-beam or girder carrying IH 35 Nbfr over South San Gabriel River in Williamson County, Texas. It was built in 2015, so it is 10 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 27,254 vehicles a day, roughly 3% of them trucks, projected to reach 33,250 by 2041. The structure is 600 ft (182.9 m) long and 64 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIH 35 Nbfr
CrossesSouth San Gabriel River
Location0.3 MI N of FM 2243
RouteInterstate 35
StateTexas
Coordinates30.62604, -97.69048
Functional classUrban Collector

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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
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 adequacy9: 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, precast panels
Main spans5
Design loadHL 93
Structure length600 ft (182.9 m)
Longest span130 ft (39.6 m)
Deck width64 ft (19.4 m)
Roadway width55 ft (16.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,254 (2021)
Projected traffic33,250 by 2041
Trucks3%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was IH 35 Nbfr over South San Gabriel River built?

It was built in 2015, making it 10 years old in 2025.

What condition is IH 35 Nbfr over South San Gabriel River 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 February 2023.

How much traffic does IH 35 Nbfr over South San Gabriel River carry?

About 27,254 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is IH 35 Nbfr over South San Gabriel River?

The structure is 600 ft (182.9 m) long with a longest span of 130 ft (39.6 m) and a deck 64 ft wide.

Who owns IH 35 Nbfr over South San Gabriel River?

It is owned by the State Highway Agency.