US Bridges

IH 69 Nbfr over Greens Bayou

Good

Harris County, Texas · 1.64 MI S of Bwy 8 · Structure no. 121020017707243

Built
1991
34 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
275 ft
3 main spans
Daily traffic
22,770
2023 count
Owner
State
State Highway Agency

About this bridge

IH 69 Nbfr over Greens Bayou is a prestressed concrete stringer/multi-beam or girder carrying IH 69 Nbfr 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 22,770 vehicles a day, roughly 5% of them trucks, projected to reach 31,878 by 2042. The structure is 275 ft (83.8 m) long and 60 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIH 69 Nbfr
CrossesGreens Bayou
Location1.64 MI S of Bwy 8
RouteInterstate 69
StateTexas
Coordinates29.91841, -95.30633
Functional classUrban Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating40 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length275 ft (83.8 m)
Longest span92 ft (28 m)
Deck width60 ft (18.2 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,770 (2023)
Projected traffic31,878 by 2042
Trucks5%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$35,000
NavigationNo navigation control on waterway

Frequently asked questions

When was IH 69 Nbfr over Greens Bayou built?

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

What condition is IH 69 Nbfr 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 September 2024.

How much traffic does IH 69 Nbfr over Greens Bayou carry?

About 22,770 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is IH 69 Nbfr over Greens Bayou?

The structure is 275 ft (83.8 m) long with a longest span of 92 ft (28 m) and a deck 60 ft wide.

Who owns IH 69 Nbfr over Greens Bayou?

It is owned by the State Highway Agency.