Structure 121020B46713230 · Harris County, TX

Neiman RD over Drainage Ditch

Carries Neiman RD over Drainage Ditch, 0.01 Mi S Of Shoreshadow.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT73 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

73 ft end to end. 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 or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built196066 years old
Length73.2 ft22.3 m
Daily traffic70counted 2009
Last inspectedAugust 2023every 24 months

Location

StateTexas
CountyHarris
Location0.01 Mi S Of Shoreshadow
CarriesNeiman RD
CrossesDrainage Ditch
Coordinates30.05370, -95.12110

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length73.2 ft (22.3 m)
Max Span29.9 ft (9.1 m)
Deck Width21.7 ft (6.6 m)
Deck Area147.2 sq m
Main Spans1
Year Built1960

Traffic

Avg Daily Traffic70 (2009)
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical5 — Stable for scour
Structure Number121020B46713230

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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