Structure 121020005009119 · Harris County, TX

US 290 WB Ml over Bwy 8 Frontage Rds

Carries US 290 WB Ml over Bwy 8 Frontage Rds, US 290 At Beltway 8.

Overall conditionFair

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT770 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

770 ft end to end, longest span 130 ft: about 2.1 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.

Built199036 years old
Length770.0 ft234.7 m
Daily traffic97,535counted 2016
Last inspectedOctober 2022every 48 months

Location

StateTexas
CountyHarris
LocationUS 290 At Beltway 8
CarriesUS 290 WB Ml
CrossesBwy 8 Frontage Rds
Coordinates29.87349, -95.55521

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length770.0 ft (234.7 m)
Max Span129.9 ft (39.6 m)
Deck Width70.9 ft (21.6 m)
Deck Area5069.5 sq m
Main Spans6
Year Built1990

Traffic

Avg Daily Traffic97,535 (2016)
Truck Traffic8%
Lanes On Bridge4
Lanes Under Bridge6

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 Number121020005009119

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.

Nearby Bridges