US Bridges

Rocky Valley DR over Keegans Bayou

Fair

Fort Bend County, Texas · 0.125 MI N of Bissonet · Structure no. 120800AA1179001

Built
1999
26 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
100 ft
3 main spans
Daily traffic
1,000
2013 count
Owner
County
County Highway Agency

About this bridge

Rocky Valley DR over Keegans Bayou is a prestressed concrete box beam or girders - multiple carrying Rocky Valley DR over Keegans Bayou in Fort Bend County, Texas. It was built in 1999, so it is 26 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 1,000 vehicles a day, projected to reach 200 by 2033. The structure is 100 ft (30.5 m) long and 44 ft wide.

Location

Open in Google Maps
CarriesRocky Valley DR
CrossesKeegans Bayou
Location0.125 MI N of Bissonet
RouteCounty Highway 0
CountyFort Bend County
StateTexas
Coordinates29.67827, -95.64925
Functional classUrban Local

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length100 ft (30.5 m)
Longest span40 ft (12.2 m)
Deck width44 ft (13.3 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2013)
Projected traffic200 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Rocky Valley DR over Keegans Bayou built?

It was built in 1999, making it 26 years old in 2025.

What condition is Rocky Valley DR 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 September 2023.

How much traffic does Rocky Valley DR over Keegans Bayou carry?

About 1,000 vehicles per day (2013 count).

How long is Rocky Valley DR over Keegans Bayou?

The structure is 100 ft (30.5 m) long with a longest span of 40 ft (12.2 m) and a deck 44 ft wide.

Who owns Rocky Valley DR over Keegans Bayou?

It is owned by the County Highway Agency.