US Bridges

IH 35 NB over US 57

Good

Frio County, Texas · IH 35 at US 57 · Structure no. 150830001706224

Built
1968
57 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
130 ft
3 main spans
Daily traffic
9,408
2019 count
Owner
State
State Highway Agency

About this bridge

IH 35 NB over US 57 is a steel continuous stringer/multi-beam or girder carrying IH 35 NB over US 57 in Frio County, Texas. It was built in 1968, so it is 57 years old, older 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 9,408 vehicles a day, roughly 19% of them trucks, projected to reach 19,710 by 2033. The structure is 130 ft (39.6 m) long and 42 ft wide.

CarriesIH 35 NB
CrossesUS 57
LocationIH 35 at US 57
RouteInterstate 35
StateTexas
Coordinates29.02801, -99.04968
Functional classRural 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 inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.9 US tons
Inventory rating38 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length130 ft (39.6 m)
Longest span50 ft (15.2 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,408 (2019)
Projected traffic19,710 by 2033
Trucks19%
Lanes on structure2
Traffic directionOne-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 statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 35 NB over US 57 built?

It was built in 1968, making it 57 years old in 2025.

What condition is IH 35 NB over US 57 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 July 2024.

How much traffic does IH 35 NB over US 57 carry?

About 9,408 vehicles per day (2019 count), of which roughly 19% are trucks.

How long is IH 35 NB over US 57?

The structure is 130 ft (39.6 m) long with a longest span of 50 ft (15.2 m) and a deck 42 ft wide.

Who owns IH 35 NB over US 57?

It is owned by the State Highway Agency.