US Bridges

Antoine DR NB over Greens Bayou

Good

Harris County, Texas · 0.2 MI N of W Greens RD · Structure no. 121020AA2430001

Built
1991
34 years old
Condition
Good
inspected November 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
151 ft
3 main spans
Daily traffic
5,000
2010 count
Owner
County
County Highway Agency

About this bridge

Antoine DR NB over Greens Bayou is a prestressed concrete box beam or girders - multiple carrying Antoine DR NB over Greens Bayou in Harris County, Texas. It was built in 1991, so it is 34 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 5,000 vehicles a day, projected to reach 6,000 by 2030. The structure is 151 ft (46 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesAntoine DR NB
CrossesGreens Bayou
Location0.2 MI N of W Greens RD
RouteCounty Highway 0
CountyHarris County
StateTexas
Coordinates29.9462, -95.48377
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length151 ft (46 m)
Longest span50 ft (15.2 m)
Deck width33 ft (10 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,000 (2010)
Projected traffic6,000 by 2030
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$9,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Antoine DR NB over Greens Bayou built?

It was built in 1991, making it 34 years old in 2025.

What condition is Antoine DR NB over Greens 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 November 2023.

How much traffic does Antoine DR NB over Greens Bayou carry?

About 5,000 vehicles per day (2010 count).

How long is Antoine DR NB over Greens Bayou?

The structure is 151 ft (46 m) long with a longest span of 50 ft (15.2 m) and a deck 33 ft wide.

Who owns Antoine DR NB over Greens Bayou?

It is owned by the County Highway Agency.