US Bridges

IH 35 SB over Black Creek

Fair

Frio County, Texas · 2.10 MI NE of FM 462 · Structure no. 150830001706214

Built
1968
57 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
243 ft
8 main spans
Daily traffic
15,863
2018 count
Owner
State
State Highway Agency

About this bridge

IH 35 SB over Black Creek is a concrete stringer/multi-beam or girder carrying IH 35 SB over Black Creek 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 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 15,863 vehicles a day, roughly 21% of them trucks, projected to reach 21,910 by 2033. The structure is 243 ft (74.1 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIH 35 SB
CrossesBlack Creek
Location2.10 MI NE of FM 462
RouteInterstate 35
StateTexas
Coordinates29.07668, -98.97404
Functional classRural 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 inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20
Structure length243 ft (74.1 m)
Longest span30 ft (9.1 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,863 (2018)
Projected traffic21,910 by 2033
Trucks21%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was IH 35 SB over Black Creek built?

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

What condition is IH 35 SB over Black Creek 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 July 2024.

How much traffic does IH 35 SB over Black Creek carry?

About 15,863 vehicles per day (2018 count), of which roughly 21% are trucks.

How long is IH 35 SB over Black Creek?

The structure is 243 ft (74.1 m) long with a longest span of 30 ft (9.1 m) and a deck 42 ft wide.

Who owns IH 35 SB over Black Creek?

It is owned by the State Highway Agency.