Structure 121020017707196 · Harris County, TX

US 59 Hov T/rp over US 59 NB

Carries US 59 Hov T/rp over US 59 NB, 0.88 Mi S Of Bwy 8.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT545 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

545 ft end to end: about 1.5 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 box-beam bridge.

Built199729 years old
Length544.9 ft166.1 m
Daily traffic1,463counted 2023
Last inspectedOctober 2024every 24 months

Location

StateTexas
CountyHarris
Location0.88 Mi S Of Bwy 8
CarriesUS 59 Hov T/rp
CrossesUS 59 NB
Coordinates29.92901, -95.30034

Physical Characteristics

MaterialSteel
DesignBox Beam - Single/Spread
Total Length544.9 ft (166.1 m)
Max Span109.9 ft (33.5 m)
Deck Width32.8 ft (10 m)
Deck Area1,661 sq m
Main Spans1
Year Built1997

Traffic

Avg Daily Traffic1,463 (2023)
Truck Traffic3%
Lanes On Bridge2
Lanes Under Bridge8

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number121020017707196

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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