Structure 121020002709183 · Harris County, TX

US 90a (o.s.t.) over SH 288

Carries US 90a (o.s.t.) over SH 288, 1.5 Mi N Of IH 610.

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 FT339 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

339 ft end to end, longest span 121 ft: about 5 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 slab bridge.

Built198343 years old
Length339.2 ft103.4 m
Daily traffic23,656counted 2022
Last inspectedAugust 2024every 24 months

Location

StateTexas
CountyHarris
Location1.5 Mi N Of IH 610
CarriesUS 90a (o.s.t.)
CrossesSH 288
Coordinates29.70089, -95.37547

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignSlab
Total Length339.2 ft (103.4 m)
Max Span121.4 ft (37 m)
Deck Width74.1 ft (22.6 m)
Deck Area2336.8 sq m
Main Spans3
Year Built1983

Traffic

Avg Daily Traffic23,656 (2022)
Truck Traffic3%
Lanes On Bridge5
Lanes Under Bridge12

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number121020002709183

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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