US Bridges

FM 66 over IH 35W

Fair

Hill County, Texas · 5.9 MI S of Johnson Cl · Structure no. 091100001423290

Built
1965
60 years old
Condition
Fair
inspected November 2024
Type
Tee Beam
Concrete Continuous
Length
254 ft
2 main spans
Daily traffic
2,711
2023 count
Owner
State
State Highway Agency

About this bridge

FM 66 over IH 35W is a concrete continuous tee beam carrying FM 66 over IH 35W in Hill County, Texas. It was built in 1965, so it is 60 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 2,711 vehicles a day, roughly 15% of them trucks, projected to reach 3,561 by 2039. The structure is 254 ft (77.4 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesFM 66
CrossesIH 35W
Location5.9 MI S of Johnson Cl
RouteState Highway 66
CountyHill County
StateTexas
Coordinates32.16892, -97.13209
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52 US tons
Inventory rating31 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadH 20
Structure length254 ft (77.4 m)
Longest span77 ft (23.5 m)
Deck width32 ft (9.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,711 (2023)
Projected traffic3,561 by 2039
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.9 mi (3 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was FM 66 over IH 35W built?

It was built in 1965, making it 60 years old in 2025.

What condition is FM 66 over IH 35W 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 November 2024.

How much traffic does FM 66 over IH 35W carry?

About 2,711 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is FM 66 over IH 35W?

The structure is 254 ft (77.4 m) long with a longest span of 77 ft (23.5 m) and a deck 32 ft wide.

Who owns FM 66 over IH 35W?

It is owned by the State Highway Agency.