US Bridges

FM 3176 over IH 35

Fair

Medina County, Texas · 3.92 MI NE of Frio C/L · Structure no. 151630001705230

Built
1968
57 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
250 ft
2 main spans
Daily traffic
743
2023 count
Owner
State
State Highway Agency

About this bridge

FM 3176 over IH 35 is a steel continuous stringer/multi-beam or girder carrying FM 3176 over IH 35 in Medina 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 743 vehicles a day, roughly 16% of them trucks, projected to reach 1,040 by 2042. The structure is 250 ft (76.2 m) long and 35 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesFM 3176
CrossesIH 35
Location3.92 MI NE of Frio C/L
RouteState Highway 3176
StateTexas
Coordinates29.12281, -98.90349
Functional classUrban Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating29 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadH 20
Structure length250 ft (76.2 m)
Longest span75 ft (22.9 m)
Deck width35 ft (10.8 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic743 (2023)
Projected traffic1,040 by 2042
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

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 FM 3176 over IH 35 built?

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

What condition is FM 3176 over IH 35 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 August 2024.

How much traffic does FM 3176 over IH 35 carry?

About 743 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is FM 3176 over IH 35?

The structure is 250 ft (76.2 m) long with a longest span of 75 ft (22.9 m) and a deck 35 ft wide.

Who owns FM 3176 over IH 35?

It is owned by the State Highway Agency.