Structure 121020050801277 · Harris County, TX

IH 10 Eb/us 90 EB over IH 610 & Ramps

Carries IH 10 Eb/us 90 EB over IH 610 & Ramps, At IH 10/us 90 Interchng.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,906 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

1,906 ft end to end, longest span 195 ft: about 5.3 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.

Built201016 years old
Length1905.8 ft580.9 m
Daily traffic24,000counted 2011
Last inspectedNovember 2024every 24 months

Location

StateTexas
CountyHarris
LocationAt IH 10/us 90 Interchng
CarriesIH 10 Eb/us 90 EB
CrossesIH 610 & Ramps
Coordinates29.77512, -95.26529

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1905.8 ft (580.9 m)
Max Span194.9 ft (59.4 m)
Deck Width38.4 ft (11.7 m)
Deck Area6796.5 sq m
Main Spans7
Year Built2010

Traffic

Avg Daily Traffic24,000 (2011)
Truck Traffic5%
Lanes On Bridge2
Lanes Under Bridge11

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 Number121020050801277

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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