US Bridges

FM 523 over Brushy Bayou

Fair

Brazoria County, Texas · 0.75 MI E of SH 288 · Structure no. 120200017804050

Built
1985
40 years old
Condition
Fair
inspected September 2024
Type
Culvert
Concrete
Length
40 ft
4 main spans
Daily traffic
9,974
2023 count
Owner
State
State Highway Agency

About this bridge

FM 523 over Brushy Bayou is a concrete culvert carrying FM 523 over Brushy Bayou in Brazoria County, Texas. It was built in 1985, so it is 40 years old, younger 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 9,974 vehicles a day, roughly 10% of them trucks, projected to reach 9,160 by 2033. The structure is 40 ft (12.3 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesFM 523
CrossesBrushy Bayou
Location0.75 MI E of SH 288
RouteState Highway 523
CountyBrazoria County
StateTexas
Coordinates29.1978, -95.44091
Functional classUrban Minor Arterial

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadUnknown
Structure length40 ft (12.3 m)
Longest span9 ft (2.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,974 (2023)
Projected traffic9,160 by 2033
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 523 over Brushy Bayou built?

It was built in 1985, making it 40 years old in 2025.

What condition is FM 523 over Brushy Bayou 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 September 2024.

How much traffic does FM 523 over Brushy Bayou carry?

About 9,974 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is FM 523 over Brushy Bayou?

The structure is 40 ft (12.3 m) long with a longest span of 9 ft (2.8 m).

Who owns FM 523 over Brushy Bayou?

It is owned by the State Highway Agency.