US Bridges

Northborough DR over Greens Bayou

FairPosted for load

Harris County, Texas · 0.4 MI N of Greens RD · Structure no. 121020B47630001

Built
1979
46 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
164 ft
5 main spans
Daily traffic
15,710
2015 count
Owner
City
City or Municipal Highway Agency

About this bridge

Northborough DR over Greens Bayou is a concrete stringer/multi-beam or girder carrying Northborough DR over Greens Bayou in Harris County, Texas. It was built in 1979, so it is 46 years old, older 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. Its operating status is: posted for load restriction.

It carries about 15,710 vehicles a day, roughly 1% of them trucks, projected to reach 18,000 by 2035. The structure is 164 ft (50 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesNorthborough DR
CrossesGreens Bayou
Location0.4 MI N of Greens RD
RouteCity Street 0
CountyHarris County
StateTexas
Coordinates29.95521, -95.42315
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load 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 typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadUnknown
Structure length164 ft (50 m)
Longest span40 ft (12.2 m)
Deck width52 ft (15.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,710 (2015)
Projected traffic18,000 by 2035
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$16,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Northborough DR over Greens Bayou built?

It was built in 1979, making it 46 years old in 2025.

What condition is Northborough DR over Greens 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 August 2023.

How much traffic does Northborough DR over Greens Bayou carry?

About 15,710 vehicles per day (2015 count), of which roughly 1% are trucks.

How long is Northborough DR over Greens Bayou?

The structure is 164 ft (50 m) long with a longest span of 40 ft (12.2 m) and a deck 52 ft wide.

Who owns Northborough DR over Greens Bayou?

It is owned by the City or Municipal Highway Agency.