Structure 121020002713088 · Harris County, TX

US 59 Nbml over Rice AVE

Carries US 59 Nbml over Rice AVE, 0.51 Mi W Of IH 610 W.

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
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 65 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.

Built1961rebuilt 1993
Length194.9 ft59.4 m
Daily traffic165,050counted 2018
Last inspectedAugust 2022every 48 months

Location

StateTexas
CountyHarris
Location0.51 Mi W Of IH 610 W
CarriesUS 59 Nbml
CrossesRice AVE
Coordinates29.72602, -95.46817

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length194.9 ft (59.4 m)
Max Span65.0 ft (19.8 m)
Deck Width112.9 ft (34.4 m)
Deck Area2043.4 sq m
Main Spans3
Year Built1961 (reconstructed 1993)

Traffic

Avg Daily Traffic165,050 (2018)
Truck Traffic6%
Lanes On Bridge8
Lanes Under Bridge8

Inspection & Ownership

Last InspectionAugust 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure Number121020002713088

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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