US Bridges

CR 30 over Styles Bayou

Good

Brazoria County, Texas · 0.70 MI W of FM 521 · Structure no. 120200AA0107301

Built
2022
3 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
70 ft
1 main span
Daily traffic
2,438
2016 count
Owner
County
County Highway Agency

About this bridge

CR 30 over Styles Bayou is a prestressed concrete stringer/multi-beam or girder carrying CR 30 over Styles Bayou in Brazoria County, Texas. It was built in 2022, so it is 3 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,438 vehicles a day, projected to reach 2,500 by 2031. The structure is 70 ft (21.3 m) long and 40 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesCR 30
CrossesStyles Bayou
Location0.70 MI W of FM 521
RouteCounty Highway 30
CountyBrazoria County
StateTexas
Coordinates29.204, -95.48678
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
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 evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length70 ft (21.3 m)
Longest span70 ft (21.3 m)
Deck width40 ft (12.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,438 (2016)
Projected traffic2,500 by 2031
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was CR 30 over Styles Bayou built?

It was built in 2022, making it 3 years old in 2025.

What condition is CR 30 over Styles Bayou 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 CR 30 over Styles Bayou carry?

About 2,438 vehicles per day (2016 count).

How long is CR 30 over Styles Bayou?

The structure is 70 ft (21.3 m) long with a longest span of 70 ft (21.3 m) and a deck 40 ft wide.

Who owns CR 30 over Styles Bayou?

It is owned by the County Highway Agency.