Structure 121020AA6012008 · Harris County, TX

W Greens RD over Detention Basin

Carries W Greens RD over Detention Basin, 0.10 Mi W Of Hollister RD.

Overall conditionGood

Set by its lowest-rated component: Culvert at 7 of 9.

How ratings work
Culvertsets the rating7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT32 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 32 ft across with 3 openings. Lengths and the car 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, so those are drawn as typical for a culvert.

Built201214 years old
Length32.2 ft9.8 m
Daily traffic500counted 2014
Last inspectedOctober 2023every 24 months

Location

StateTexas
CountyHarris
Location0.10 Mi W Of Hollister RD
CarriesW Greens RD
CrossesDetention Basin
Coordinates29.94361, -95.58822

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length32.2 ft (9.8 m)
Max Span8.9 ft (2.7 m)
Deck Area143.1 sq m
Main Spans3
Year Built2012

Traffic

Avg Daily Traffic500 (2014)
Lanes On Bridge4

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical6 — Scour calculated, stable
Structure Number121020AA6012008

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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