Structure 121020AA6581001 · Harris County, TX

Wilson RD over Garners Bayou

Carries Wilson RD over Garners Bayou, 1.10 Mi N Of Bw 8.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
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 FT258 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 6/9 · sets the rating

258 ft end to end, longest span 86 ft: about 4 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.

Built1988rebuilt 2018
Length257.9 ft78.6 m
Daily traffic19,910counted 2016
Last inspectedDecember 2023every 24 months

Location

StateTexas
CountyHarris
Location1.10 Mi N Of Bw 8
CarriesWilson RD
CrossesGarners Bayou
Coordinates29.95124, -95.24965

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length257.9 ft (78.6 m)
Max Span86.0 ft (26.2 m)
Deck Width89.9 ft (27.4 m)
Deck Area2153.6 sq m
Main Spans3
Year Built1988 (reconstructed 2018)

Traffic

Avg Daily Traffic19,910 (2016)
Truck Traffic5%
Lanes On Bridge4

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number121020AA6581001

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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