US Bridges

IH 35 Nbfr over N San Gabriel River

Fair

Williamson County, Texas · 0.2 MI S of FM 2338 · Structure no. 142460001508441

Built
1997
28 years old
Condition
Fair
inspected January 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
845 ft
6 main spans
Daily traffic
24,951
2021 count
Owner
State
State Highway Agency

About this bridge

IH 35 Nbfr over N San Gabriel River is a prestressed concrete stringer/multi-beam or girder carrying IH 35 Nbfr over N San Gabriel River in Williamson County, Texas. It was built in 1997, so it is 28 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 24,951 vehicles a day, roughly 4% of them trucks, projected to reach 36,428 by 2041. The structure is 845 ft (257.6 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIH 35 Nbfr
CrossesN San Gabriel River
Location0.2 MI S of FM 2338
RouteInterstate 35
StateTexas
Coordinates30.64558, -97.68289
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
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, cast-in-place
Main spans6 (+1 approach)
Design loadHS 20
Structure length845 ft (257.6 m)
Longest span130 ft (39.6 m)
Deck width52 ft (15.9 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,951 (2021)
Projected traffic36,428 by 2041
Trucks4%
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

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 N San Gabriel River built?

It was built in 1997, making it 28 years old in 2025.

What condition is IH 35 Nbfr over N San Gabriel River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2023.

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

About 24,951 vehicles per day (2021 count), of which roughly 4% are trucks.

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

The structure is 845 ft (257.6 m) long with a longest span of 130 ft (39.6 m) and a deck 52 ft wide.

Who owns IH 35 Nbfr over N San Gabriel River?

It is owned by the State Highway Agency.