US Bridges

Chimney Rock RD over Brays Bayou

Good

Harris County, Texas · 0.1 MI N of S Braeswood · Structure no. 121020B14401602

Built
2022
3 years old
Condition
Good
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
234 ft
3 main spans
Daily traffic
15,230
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Chimney Rock RD over Brays Bayou is a prestressed concrete box beam or girders - multiple carrying Chimney Rock RD over Brays Bayou in Harris 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 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 15,230 vehicles a day, roughly 4% of them trucks, projected to reach 21,322 by 2042. The structure is 234 ft (71.3 m) long and 77 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesChimney Rock RD
CrossesBrays Bayou
Location0.1 MI N of S Braeswood
RouteCity Street 0
StateTexas
Coordinates29.67749, -95.47667
Functional classUrban Minor Arterial

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.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length234 ft (71.3 m)
Longest span84 ft (25.6 m)
Deck width77 ft (23.6 m)
Roadway width55 ft (16.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,230 (2022)
Projected traffic21,322 by 2042
Trucks4%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Chimney Rock RD over Brays Bayou built?

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

What condition is Chimney Rock RD over Brays 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 August 2023.

How much traffic does Chimney Rock RD over Brays Bayou carry?

About 15,230 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is Chimney Rock RD over Brays Bayou?

The structure is 234 ft (71.3 m) long with a longest span of 84 ft (25.6 m) and a deck 77 ft wide.

Who owns Chimney Rock RD over Brays Bayou?

It is owned by the City or Municipal Highway Agency.