US Bridges

Bissonnet RD WB over Keegans Bayou

Fair

Fort Bend County, Texas · 0.1 MI W of SH 6 · Structure no. 120800AA0237002

Built
1984
41 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
125 ft
3 main spans
Daily traffic
3,545
2016 count
Owner
County
County Highway Agency

About this bridge

Bissonnet RD WB over Keegans Bayou is a prestressed concrete box beam or girders - multiple carrying Bissonnet RD WB over Keegans Bayou in Fort Bend County, Texas. It was built in 1984, so it is 41 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 3,545 vehicles a day, projected to reach 1,000 by 2029. The structure is 125 ft (38.1 m) long and 34 ft wide.

Location

Open in Google Maps
CarriesBissonnet RD WB
CrossesKeegans Bayou
Location0.1 MI W of SH 6
RouteCounty Highway 0
CountyFort Bend County
StateTexas
Coordinates29.67701, -95.64532
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation6: Equal to present minimum 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

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length125 ft (38.1 m)
Longest span42 ft (12.8 m)
Deck width34 ft (10.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,545 (2016)
Projected traffic1,000 by 2029
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$8,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Bissonnet RD WB over Keegans Bayou built?

It was built in 1984, making it 41 years old in 2025.

What condition is Bissonnet RD WB 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 Bissonnet RD WB over Keegans Bayou carry?

About 3,545 vehicles per day (2016 count).

How long is Bissonnet RD WB over Keegans Bayou?

The structure is 125 ft (38.1 m) long with a longest span of 42 ft (12.8 m) and a deck 34 ft wide.

Who owns Bissonnet RD WB over Keegans Bayou?

It is owned by the County Highway Agency.