US Bridges

Roark RD over Keegans Bayou

Fair

Harris County, Texas · 0.5 MI SW of Beltway 8 · Structure no. 121020002713071

Built
1960
65 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete
Length
105 ft
4 main spans
Daily traffic
6,954
2021 count
Owner
State
State Highway Agency

About this bridge

Roark RD over Keegans Bayou is a concrete slab carrying Roark RD over Keegans Bayou in Harris County, Texas. It was built in 1960, so it is 65 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 5 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 6,954 vehicles a day, roughly 3% of them trucks, projected to reach 43,690 by 2030. The structure is 105 ft (32 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesRoark RD
CrossesKeegans Bayou
Location0.5 MI SW of Beltway 8
RouteU.S. Route 59
CountyHarris County
StateTexas
Coordinates29.65596, -95.56245
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadOther
Structure length105 ft (32 m)
Longest span26 ft (7.9 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,954 (2021)
Projected traffic43,690 by 2030
Trucks3%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Roark RD over Keegans Bayou built?

It was built in 1960, making it 65 years old in 2025.

What condition is Roark RD over Keegans 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 August 2024.

How much traffic does Roark RD over Keegans Bayou carry?

About 6,954 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Roark RD over Keegans Bayou?

The structure is 105 ft (32 m) long with a longest span of 26 ft (7.9 m) and a deck 28 ft wide.

Who owns Roark RD over Keegans Bayou?

It is owned by the State Highway Agency.