US Bridges

FM 578 over Clear Fork Brazos Relief

Good

Stephens County, Texas · 7.5 MI N of US 183 · Structure no. 232150103101010

Built
1955
70 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
60 ft
2 main spans
Daily traffic
163
2020 count
Owner
State
State Highway Agency

About this bridge

FM 578 over Clear Fork Brazos Relief is a concrete stringer/multi-beam or girder carrying FM 578 over Clear Fork Brazos Relief in Stephens County, Texas. It was built in 1955, so it is 70 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 163 vehicles a day, roughly 31% of them trucks, projected to reach 360 by 2033. The structure is 60 ft (18.3 m) long and 25 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesFM 578
CrossesClear Fork Brazos Relief
Location7.5 MI N of US 183
RouteState Highway 578
CountyStephens County
StateTexas
Coordinates32.90916, -98.89762
Functional classRural Major Collector

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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
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 rating57 US tons
Inventory rating34 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadOther
Structure length60 ft (18.3 m)
Longest span30 ft (9.1 m)
Deck width25 ft (7.5 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic163 (2020)
Projected traffic360 by 2033
Trucks31%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed9.9 mi (16 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 578 over Clear Fork Brazos Relief built?

It was built in 1955, making it 70 years old in 2025.

What condition is FM 578 over Clear Fork Brazos Relief 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 September 2023.

How much traffic does FM 578 over Clear Fork Brazos Relief carry?

About 163 vehicles per day (2020 count), of which roughly 31% are trucks.

How long is FM 578 over Clear Fork Brazos Relief?

The structure is 60 ft (18.3 m) long with a longest span of 30 ft (9.1 m) and a deck 25 ft wide.

Who owns FM 578 over Clear Fork Brazos Relief?

It is owned by the State Highway Agency.