Structure 121020005009146 · Harris County, TX

US 290 Hov Ramp over US 290 EB

Carries US 290 Hov Ramp over US 290 EB, 0.35 Mi SE Of Bwy 8.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,296 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

1,296 ft end to end, longest span 90 ft: about 3.6 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.

Built198838 years old
Length1295.9 ft395 m
Daily traffic15,750counted 2016
Last inspectedOctober 2024every 24 months

Location

StateTexas
CountyHarris
Location0.35 Mi SE Of Bwy 8
CarriesUS 290 Hov Ramp
CrossesUS 290 EB
Coordinates29.87101, -95.54988

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length1295.9 ft (395 m)
Max Span89.9 ft (27.4 m)
Deck Width22.6 ft (6.9 m)
Deck Area2725.5 sq m
Main Spans2
Year Built1988

Traffic

Avg Daily Traffic15,750 (2016)
Truck Traffic8%
Lanes On Bridge1
Lanes Under Bridge4

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number121020005009146

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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