BridgeSafety
Harris County, TX · Structure #121020325601137

BW 8 NBML

BW 8 NBML in 1.7 MI N Of US 59, Harris County, Texas received a condition grade of B (74/100). Built in 1987, the bridge carries 143K vehicles daily on BW 8 NBML over Hcfcd Ditch.

B
74/100
74
Condition Score
143K
Daily Traffic
1987
Year Built
29.3m
Length

Component Ratings

DeckGood
7/9

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

SuperstructureGood
7/9

Beams, girders, and trusses that support the deck

SubstructureFair
6/9

Piers, abutments, and foundations below the deck

Bridge Details

Road
BW 8 NBML
Crosses Over
Hcfcd Ditch
State
Texas
County
Harris County
Location
1.7 MI N Of US 59
Year Built
1987
Reconstructed
2007
Age
39 years
Daily Traffic
142,789
Lanes
5
Length
29.3 meters
Owner
Local Toll Authority
Structure Number
121020325601137

About This Bridge

BW 8 NBML is a 39-year-old bridge located 1.7 MI N Of US 59 in Harris County, Texas. The bridge carries BW 8 NBML over Hcfcd Ditch with 5 traffic lanes, handling approximately 143K vehicles per day. Built in 1987 and reconstructed in 2007, the structure spans 29.3 meters.

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

This bridge is owned and maintained by Local Toll Authority.

Location Map

1.7 MI N Of US 59, Harris County, Texas

29.684708, -95.558286

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Frequently Asked Questions

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

BW 8 NBML was built in 1987 and reconstructed in 2007, making it 39 years old. The average bridge age in the United States is 48 years.

BW 8 NBML carries approximately 143K vehicles per day (average daily traffic). The bridge has 5 traffic lanes. It is 29.3 meters long and located on BW 8 NBML in 1.7 MI N Of US 59, Harris County, Texas.

No, BW 8 NBML 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 NBML is located 1.7 MI N Of US 59 in Harris County, Texas. The bridge carries BW 8 NBML over Hcfcd Ditch. Its coordinates are 29.684708, -95.558286. It is maintained by Local Toll Authority.

BW 8 NBML carries BW 8 NBML over Hcfcd Ditch. The bridge is 29.3 meters long and was built in 1987, with reconstruction in 2007.

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.