Structure 121020002709303 · Harris County, TX

US 90a over Bw 8 Frs

Carries US 90a over Bw 8 Frs, 3.3 Mi SE Of US 59.

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 FT590 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

590 ft end to end, longest span 100 ft: about 1.6 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 multi-beam bridge.

Built199828 years old
Length589.9 ft179.8 m
Daily traffic44,440counted 2013
Last inspectedSeptember 2022every 48 months

Location

StateTexas
CountyHarris
Location3.3 Mi SE Of US 59
CarriesUS 90a
CrossesBw 8 Frs
Coordinates29.62618, -95.51848

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length589.9 ft (179.8 m)
Max Span100.1 ft (30.5 m)
Deck Width93.8 ft (28.6 m)
Deck Area5142.3 sq m
Main Spans6
Year Built1998

Traffic

Avg Daily Traffic44,440 (2013)
Truck Traffic2%
Lanes On Bridge6
Lanes Under Bridge8

Inspection & Ownership

Last InspectionSeptember 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number121020002709303

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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