Structure 121020B32105010 · Harris County, TX

Hirsch RD SB over Uprr

Carries Hirsch RD SB over Uprr, 0.5 Mi N Of Kelley ST.

Overall conditionGood

Set by its lowest-rated component: Deck and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT565 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

565 ft end to end, longest span 185 ft: about 1.6 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.

Built201610 years old
Length565.0 ft172.2 m
Daily traffic3,200counted 2022
Last inspectedDecember 2023every 24 months

Location

StateTexas
CountyHarris
Location0.5 Mi N Of Kelley ST
CarriesHirsch RD SB
CrossesUprr
Coordinates29.81997, -95.32872

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length565.0 ft (172.2 m)
Max Span185.0 ft (56.4 m)
Deck Width35.1 ft (10.7 m)
Deck Area1842.5 sq m
Main Spans3
Year Built2016

Traffic

Avg Daily Traffic3,200 (2022)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number121020B32105010

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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