US Bridges

Bw 8 SB over Armand Bayou

Fair

Harris County, Texas · 4.7 MI NE of IH 45 (s) · Structure no. 121020325603379

Built
1995
30 years old, rebuilt 2021
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
143 ft
1 main span
Daily traffic
70,069
2023 count
Owner
Toll Authority
Local Toll Authority

About this bridge

Bw 8 SB over Armand Bayou is a prestressed concrete stringer/multi-beam or girder carrying Bw 8 SB over Armand Bayou in Harris County, Texas. It was built in 1995 and reconstructed in 2021, so it is 30 years old, younger 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.

It carries about 70,069 vehicles a day, roughly 10% of them trucks, projected to reach 98,097 by 2042. The structure is 143 ft (43.6 m) long and 83 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesBw 8 SB
CrossesArmand Bayou
Location4.7 MI NE of IH 45 (s)
CountyHarris County
StateTexas
Coordinates29.65482, -95.15625
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1 (+2 approach)
Design loadHS 20
Structure length143 ft (43.6 m)
Longest span52 ft (15.9 m)
Deck width83 ft (25.4 m)
Roadway width81 ft (24.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70,069 (2023)
Projected traffic98,097 by 2042
Trucks10%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a toll road
National Highway SystemYes

Ownership and planned work

OwnerLocal Toll Authority
Maintained byLocal Toll Authority
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 Bw 8 SB over Armand Bayou built?

It was built in 1995, making it 30 years old in 2025. It was reconstructed in 2021.

What condition is Bw 8 SB over Armand 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 October 2024.

How much traffic does Bw 8 SB over Armand Bayou carry?

About 70,069 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Bw 8 SB over Armand Bayou?

The structure is 143 ft (43.6 m) long with a longest span of 52 ft (15.9 m) and a deck 83 ft wide.

Who owns Bw 8 SB over Armand Bayou?

It is owned by the Local Toll Authority.