US Bridges

Kirby DR SB over Brays Bayou

FairPosted for load

Harris County, Texas · 0.01 MI S of Braeswod Blv · Structure no. 121020B36537093

Built
1962
63 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete Continuous
Length
202 ft
5 main spans
Daily traffic
9,950
2013 count
Owner
City
City or Municipal Highway Agency

About this bridge

Kirby DR SB over Brays Bayou is a concrete continuous slab carrying Kirby DR SB over Brays Bayou in Harris County, Texas. It was built in 1962, so it is 63 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. Its operating status is: posted for load restriction.

It carries about 9,950 vehicles a day, projected to reach 1,321 by 2033. The structure is 202 ft (61.6 m) long and 35 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesKirby DR SB
CrossesBrays Bayou
Location0.01 MI S of Braeswod Blv
RouteCity Street 0
CountyHarris County
StateTexas
Coordinates29.69734, -95.41801
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
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 typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadUnknown
Structure length202 ft (61.6 m)
Longest span50 ft (15.2 m)
Deck width35 ft (10.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,950 (2013)
Projected traffic1,321 by 2033
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$14,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Kirby DR SB over Brays Bayou built?

It was built in 1962, making it 63 years old in 2025.

What condition is Kirby DR SB over Brays 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 October 2023.

How much traffic does Kirby DR SB over Brays Bayou carry?

About 9,950 vehicles per day (2013 count).

How long is Kirby DR SB over Brays Bayou?

The structure is 202 ft (61.6 m) long with a longest span of 50 ft (15.2 m) and a deck 35 ft wide.

Who owns Kirby DR SB over Brays Bayou?

It is owned by the City or Municipal Highway Agency.