Structure 121020B00114206 · Harris County, TX

W 11th ST over White Oak Bayou

Carries W 11th ST over White Oak Bayou, 0.10 Mi W Of Tc Jester.

Overall conditionFair

Set by its lowest-rated component: Deck and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT195 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 6/9 · sets the rating

195 ft end to end, longest span 72 ft: about 3 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.

Built195571 years old
Length194.9 ft59.4 m
Daily traffic15,000counted 2011
Last inspectedOctober 2023every 24 months

Location

StateTexas
CountyHarris
Location0.10 Mi W Of Tc Jester
CarriesW 11th ST
CrossesWhite Oak Bayou
Coordinates29.79011, -95.41708

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length194.9 ft (59.4 m)
Max Span71.9 ft (21.9 m)
Deck Width53.5 ft (16.3 m)
Deck Area968.2 sq m
Main Spans3
Year Built1955

Traffic

Avg Daily Traffic15,000 (2011)
Truck Traffic2%
Lanes On Bridge4

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical6 — Scour calculated, stable
Structure Number121020B00114206

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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