US Bridges

Belknap Rd. over Keegans Bayou Trib.

Good

Fort Bend County, Texas · 0.63 N of W. Bellfort Ave · Structure no. 120800AA0139241

Built
1975
50 years old
Condition
Good
inspected December 2023
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
1,270
2020 count
Owner
County
County Highway Agency

About this bridge

Belknap Rd. over Keegans Bayou Trib. is a concrete culvert carrying Belknap Rd. over Keegans Bayou Trib. in Fort Bend County, Texas. It was built in 1975, so it is 50 years old, older 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 1,270 vehicles a day, roughly 1% of them trucks, projected to reach 5,510 by 2040. The structure is 33 ft (10.1 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesBelknap Rd.
CrossesKeegans Bayou Trib.
Location0.63 N of W. Bellfort Ave
RouteCounty Highway 0
StateTexas
Coordinates29.67151, -95.62333
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length33 ft (10.1 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,270 (2020)
Projected traffic5,510 by 2040
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Belknap Rd. over Keegans Bayou Trib. built?

It was built in 1975, making it 50 years old in 2025.

What condition is Belknap Rd. over Keegans Bayou Trib. 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 December 2023.

How much traffic does Belknap Rd. over Keegans Bayou Trib. carry?

About 1,270 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Belknap Rd. over Keegans Bayou Trib.?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m).

Who owns Belknap Rd. over Keegans Bayou Trib.?

It is owned by the County Highway Agency.