Structure 121020325602027 · Harris County, TX

Bw 8 EB over Imperial Valley

Carries Bw 8 EB over Imperial Valley, 0.6 Mi E Of Greenspoint.

Overall conditionFair

Set by its lowest-rated component: Deck at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT472 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

472 ft end to end, longest span 124 ft: about 7 semi-trucks nose to tail. 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.

Built1986rebuilt 2014
Length472.1 ft143.9 m
Daily traffic80,357counted 2021
Last inspectedOctober 2022every 48 months

Location

StateTexas
CountyHarris
Location0.6 Mi E Of Greenspoint
CarriesBw 8 EB
CrossesImperial Valley
Coordinates29.93913, -95.39722

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length472.1 ft (143.9 m)
Max Span124.0 ft (37.8 m)
Deck Width81.4 ft (24.8 m)
Deck Area3568.7 sq m
Main Spans3
Year Built1986 (reconstructed 2014)

Traffic

Avg Daily Traffic80,357 (2021)
Truck Traffic8%
Lanes On Bridge5
Lanes Under Bridge10

Inspection & Ownership

Last InspectionOctober 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number121020325602027

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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