Structure 121020027116443 · Harris County, TX

IH 610wb/s Postoak over S Braeswood & S Post Oak

Carries IH 610wb/s Postoak over S Braeswood & S Post Oak, 1.9 Mi W Of US 90a.

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 FT1,192 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

1,192 ft end to end, longest span 125 ft: about 3.3 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.

Built198640 years old
Length1191.9 ft363.3 m
Daily traffic14,060counted 2013
Last inspectedNovember 2024every 24 months

Location

StateTexas
CountyHarris
Location1.9 Mi W Of US 90a
CarriesIH 610wb/s Postoak
CrossesS Braeswood & S Post Oak
Coordinates29.67893, -95.45737

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1191.9 ft (363.3 m)
Max Span125.0 ft (38.1 m)
Deck Width29.9 ft (9.1 m)
Deck Area3306.0 sq m
Main Spans4
Year Built1986

Traffic

Avg Daily Traffic14,060 (2013)
Truck Traffic6%
Lanes On Bridge1
Lanes Under Bridge6

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 Number121020027116443

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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