US Bridges

Knight RD NB over Brazos Rvr Auth Canal

Good

Fort Bend County, Texas · 0.00 Mi. N of Mckeever RD · Structure no. 120800AA0997005

Built
2022
3 years old
Condition
Good
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
65 ft
1 main span
Daily traffic
136
2016 count
Owner
County
County Highway Agency

About this bridge

Knight RD NB over Brazos Rvr Auth Canal is a prestressed concrete box beam or girders - multiple carrying Knight RD NB over Brazos Rvr Auth Canal in Fort Bend County, Texas. It was built in 2022, so it is 3 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 136 vehicles a day, projected to reach 1 by 1900. The structure is 65 ft (19.8 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesKnight RD NB
CrossesBrazos Rvr Auth Canal
Location0.00 Mi. N of Mckeever RD
RouteCounty Highway 0
CountyFort Bend County
StateTexas
Coordinates29.5074, -95.51011
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length65 ft (19.8 m)
Longest span65 ft (19.8 m)
Deck width34 ft (10.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic136 (2016)
Projected traffic1 by 1900
Trucks0%
Lanes on structure2
Traffic directionOne-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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Knight RD NB over Brazos Rvr Auth Canal built?

It was built in 2022, making it 3 years old in 2025.

What condition is Knight RD NB over Brazos Rvr Auth Canal 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 September 2023.

How much traffic does Knight RD NB over Brazos Rvr Auth Canal carry?

About 136 vehicles per day (2016 count).

How long is Knight RD NB over Brazos Rvr Auth Canal?

The structure is 65 ft (19.8 m) long with a longest span of 65 ft (19.8 m) and a deck 34 ft wide.

Who owns Knight RD NB over Brazos Rvr Auth Canal?

It is owned by the County Highway Agency.