Structure 121020027117562 · Harris County, TX

IH 610 over Post Oak BLVD

Carries IH 610 over Post Oak BLVD, 1.8 Mi S Of IH 10.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT516 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 7/9 · sets the ratingSubstructure 8/9

516 ft end to end, longest span 142 ft: about 7 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 box-beam bridge.

Built200620 years old
Length516.1 ft157.3 m
Daily traffic190,080counted 2020
Last inspectedAugust 2024every 24 months

Location

StateTexas
CountyHarris
Location1.8 Mi S Of IH 10
CarriesIH 610
CrossesPost Oak BLVD
Coordinates29.75417, -95.45558

Physical Characteristics

MaterialSteel
DesignBox Beam - Multiple
Total Length516.1 ft (157.3 m)
Max Span142.1 ft (43.3 m)
Deck Width183.4 ft (55.9 m)
Deck Area8793.1 sq m
Main Spans3
Year Built2006

Traffic

Avg Daily Traffic190,080 (2020)
Truck Traffic6%
Lanes On Bridge10
Lanes Under Bridge8

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 Number121020027117562

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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