BridgeSafety
Harris County, TX · Structure #121020325602234

BW 8 WBML

BW 8 WBML in 1.5 MI E Of Antoine, Harris County, Texas received a condition grade of B (74/100). Built in 1989, the bridge carries 146K vehicles daily on BW 8 WBML over Greens Bayou.

BW 8 WBML carries a B on the BridgeSafety Condition Score with 74/100. Most component ratings are solid; one or two may show wear consistent with the structure’s age, but the bridge is not flagged as structurally deficient.

The bridge was built in 1989, making it 37 years old — past the early-life period but still well within typical service life. Routine inspections and modest repair work are normal for bridges in this age band. BW 8 WBML carries an average daily traffic count of 145,904 vehicles, with 4 lane(s) crossing Greens Bayou. The owning agency is Local Toll Authority; bridge inspection records flow into the federal NBI database annually.

B
74/100
74
Condition Score
146K
Daily Traffic
1989
Year Built
107.9m
Length

Component Ratings

DeckFair
6/9

The riding surface, evaluated for cracking, spalling, and wear

SuperstructureGood
7/9

Beams, girders, and trusses that support the deck

SubstructureGood
7/9

Piers, abutments, and foundations below the deck

Bridge Details

Road
BW 8 WBML
Crosses Over
Greens Bayou
State
Texas
County
Harris County
Location
1.5 MI E Of Antoine
Year Built
1989
Reconstructed
2004
Age
37 years
Daily Traffic
145,904
Lanes
4
Length
107.9 meters
Owner
Local Toll Authority
Structure Number
121020325602234

About This Bridge

BW 8 WBML is a 37-year-old bridge located 1.5 MI E Of Antoine in Harris County, Texas. The bridge carries BW 8 WBML over Greens Bayou with 4 traffic lanes, handling approximately 146K vehicles per day. Built in 1989 and reconstructed in 2004, the structure spans 107.9 meters.

The bridge received a Condition Grade of B (74/100) based on Federal Highway Administration inspection data. Its deck is rated 6/9 (fair), superstructure 7/9 (good), and substructure 7/9 (good).

This bridge is owned and maintained by Local Toll Authority.

Location Map

1.5 MI E Of Antoine, Harris County, Texas

29.937686, -95.457503

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Frequently Asked Questions

BW 8 WBML has a Condition Score of 74/100 (Grade B). Its deck is rated 6/9, superstructure 7/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.

BW 8 WBML was built in 1989 and reconstructed in 2004, making it 37 years old. The average bridge age in the United States is 48 years.

BW 8 WBML carries approximately 146K vehicles per day (average daily traffic). The bridge has 4 traffic lanes. It is 107.9 meters long and located on BW 8 WBML in 1.5 MI E Of Antoine, Harris County, Texas.

No, BW 8 WBML is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.

BW 8 WBML is located 1.5 MI E Of Antoine in Harris County, Texas. The bridge carries BW 8 WBML over Greens Bayou. Its coordinates are 29.937686, -95.457503. It is maintained by Local Toll Authority.

BW 8 WBML carries BW 8 WBML over Greens Bayou. The bridge is 107.9 meters long and was built in 1989, with reconstruction in 2004.

Last updated:

Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.

Source: FHWA National Bridge Inventory, 2026.