US Bridges

FM 585 over Briar Creek

Good

Brown County, Texas · 0.80 MI N of FM 1850 · Structure no. 230250103501008

Built
1964
61 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete
Length
31 ft
2 main spans
Daily traffic
103
2020 count
Owner
State
State Highway Agency

About this bridge

FM 585 over Briar Creek is a concrete culvert carrying FM 585 over Briar Creek in Brown County, Texas. It was built in 1964, so it is 61 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 103 vehicles a day, roughly 13% of them trucks, projected to reach 157 by 2038. The structure is 31 ft (9.4 m) long and 29 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

CarriesFM 585
CrossesBriar Creek
Location0.80 MI N of FM 1850
RouteState Highway 585
StateTexas
Coordinates31.89037, -99.16939
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2024
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 adequacy7: Better than 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 spans2
Design loadOther
Structure length31 ft (9.4 m)
Longest span10 ft (3 m)
Deck width29 ft (8.9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic103 (2020)
Projected traffic157 by 2038
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 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 585 over Briar Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is FM 585 over Briar Creek 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 March 2024.

How much traffic does FM 585 over Briar Creek carry?

About 103 vehicles per day (2020 count), of which roughly 13% are trucks.

How long is FM 585 over Briar Creek?

The structure is 31 ft (9.4 m) long with a longest span of 10 ft (3 m) and a deck 29 ft wide.

Who owns FM 585 over Briar Creek?

It is owned by the State Highway Agency.