US Bridges

SH 6 over Keegans Bayou

Good

Fort Bend County, Texas · 4.35 MI N of US 90A · Structure no. 120800168506032

Built
1981
44 years old, rebuilt 1992
Condition
Good
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
120 ft
3 main spans
Daily traffic
57,901
2024 count
Owner
State
State Highway Agency

About this bridge

SH 6 over Keegans Bayou is a prestressed concrete box beam or girders - multiple carrying SH 6 over Keegans Bayou in Fort Bend County, Texas. It was built in 1981 and reconstructed in 1992, so it is 44 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 57,901 vehicles a day, roughly 5% of them trucks, projected to reach 56,330 by 2033. The structure is 120 ft (36.6 m) long and 116 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSH 6
CrossesKeegans Bayou
Location4.35 MI N of US 90A
RouteState Highway 6
StateTexas
Coordinates29.67451, -95.64348
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
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 loadHS 20
Structure length120 ft (36.6 m)
Longest span40 ft (12.2 m)
Deck width116 ft (35.4 m)
Roadway width106 ft (32.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic57,901 (2024)
Projected traffic56,330 by 2033
Trucks5%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SH 6 over Keegans Bayou built?

It was built in 1981, making it 44 years old in 2025. It was reconstructed in 1992.

What condition is SH 6 over Keegans 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 October 2024.

How much traffic does SH 6 over Keegans Bayou carry?

About 57,901 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is SH 6 over Keegans Bayou?

The structure is 120 ft (36.6 m) long with a longest span of 40 ft (12.2 m) and a deck 116 ft wide.

Who owns SH 6 over Keegans Bayou?

It is owned by the State Highway Agency.