US Bridges

FM 604 over Rough Creek

Fair

Callahan County, Texas · 8.60 MI S of IH 20 · Structure no. 080300097401009

Built
1955
70 years old, rebuilt 1994
Condition
Fair
inspected February 2023
Type
Culvert
Concrete
Length
39 ft
4 main spans
Daily traffic
289
2020 count
Owner
State
State Highway Agency

About this bridge

FM 604 over Rough Creek is a concrete culvert carrying FM 604 over Rough Creek in Callahan County, Texas. It was built in 1955 and reconstructed in 1994, 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 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 289 vehicles a day, roughly 19% of them trucks, projected to reach 260 by 2033. The structure is 39 ft (11.9 m) long and 34 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

Location

Open in Google Maps
CarriesFM 604
CrossesRough Creek
Location8.60 MI S of IH 20
RouteState Highway 604
CountyCallahan County
StateTexas
Coordinates32.29828, -99.50749
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadOther
Structure length39 ft (11.9 m)
Longest span9 ft (2.7 m)
Deck width34 ft (10.4 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic289 (2020)
Projected traffic260 by 2033
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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 604 over Rough Creek built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 1994.

What condition is FM 604 over Rough 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 February 2023.

How much traffic does FM 604 over Rough Creek carry?

About 289 vehicles per day (2020 count), of which roughly 19% are trucks.

How long is FM 604 over Rough Creek?

The structure is 39 ft (11.9 m) long with a longest span of 9 ft (2.7 m) and a deck 34 ft wide.

Who owns FM 604 over Rough Creek?

It is owned by the State Highway Agency.