Structure 121020027107568 · Harris County, TX

IH 10 WB over Antoine DR

Carries IH 10 WB over Antoine DR, 1.4 Mi W Of IH 610.

Overall conditionGood

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT355 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

355 ft end to end, longest span 131 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 multi-beam bridge.

Built200818 years old
Length355.0 ft108.2 m
Daily traffic160,776counted 2019
Last inspectedDecember 2024every 24 months

Location

StateTexas
CountyHarris
Location1.4 Mi W Of IH 610
CarriesIH 10 WB
CrossesAntoine DR
Coordinates29.78403, -95.47546

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length355.0 ft (108.2 m)
Max Span130.6 ft (39.8 m)
Deck Width132.9 ft (40.5 m)
Deck Area4382.1 sq m
Main Spans2
Year Built2008

Traffic

Avg Daily Traffic160,776 (2019)
Truck Traffic7%
Lanes On Bridge7
Lanes Under Bridge8

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number121020027107568

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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