US Bridges

IH 35 NB Ml over Chacon Creek

Fair

Medina County, Texas · 5.63 MI NE of Frio C/L · Structure no. 151630001705210

Built
1967
58 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
360 ft
9 main spans
Daily traffic
18,797
2023 count
Owner
State
State Highway Agency

About this bridge

IH 35 NB Ml over Chacon Creek is a concrete stringer/multi-beam or girder carrying IH 35 NB Ml over Chacon Creek in Medina County, Texas. It was built in 1967, so it is 58 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 18,797 vehicles a day, roughly 41% of them trucks, projected to reach 52,630 by 2042. The structure is 360 ft (109.7 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIH 35 NB Ml
CrossesChacon Creek
Location5.63 MI NE of Frio C/L
RouteInterstate 35
StateTexas
Coordinates29.14151, -98.88423
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 protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.7 US tons
Inventory rating20.8 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20
Structure length360 ft (109.7 m)
Longest span40 ft (12.2 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,797 (2023)
Projected traffic52,630 by 2042
Trucks41%
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 NB Ml over Chacon Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is IH 35 NB Ml over Chacon 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 August 2024.

How much traffic does IH 35 NB Ml over Chacon Creek carry?

About 18,797 vehicles per day (2023 count), of which roughly 41% are trucks.

How long is IH 35 NB Ml over Chacon Creek?

The structure is 360 ft (109.7 m) long with a longest span of 40 ft (12.2 m) and a deck 33 ft wide.

Who owns IH 35 NB Ml over Chacon Creek?

It is owned by the State Highway Agency.