Structure 121020027107600 · Harris County, TX

Bw 8 Nbfr over IH 10

Carries Bw 8 Nbfr over IH 10, 4.9 Mi E Of SH 6.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,615 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

1,615 ft end to end, longest span 160 ft: about 4.5 football fields. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a box-beam bridge.

Built200719 years old
Length1615.2 ft492.3 m
Daily traffic13,862counted 2024
Last inspectedNovember 2024every 24 months

Location

StateTexas
CountyHarris
Location4.9 Mi E Of SH 6
CarriesBw 8 Nbfr
CrossesIH 10
Coordinates29.78311, -95.56260

Physical Characteristics

MaterialSteel Continuous
DesignBox Beam - Multiple
Total Length1615.2 ft (492.3 m)
Max Span160.1 ft (48.8 m)
Deck Width34.4 ft (10.5 m)
Deck Area5169.1 sq m
Main Spans5
Year Built2007

Traffic

Avg Daily Traffic13,862 (2024)
Truck Traffic1%
Lanes On Bridge2
Lanes Under Bridge14

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number121020027107600

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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