Structure 121020017707274 · Harris County, TX

US 59 NB over Bw 8 Fr

Carries US 59 NB over Bw 8 Fr, 5.0 Mi S Of FM 1960.

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 FT535 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

535 ft end to end, longest span 115 ft: about 7 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 bridge of this kind.

Built199531 years old
Length535.1 ft163.1 m
Daily traffic104,844counted 2023
Last inspectedOctober 2024every 24 months

Location

StateTexas
CountyHarris
Location5.0 Mi S Of FM 1960
CarriesUS 59 NB
CrossesBw 8 Fr
Coordinates29.94007, -95.29552

Physical Characteristics

MaterialPrestressed Concrete
DesignOther
Total Length535.1 ft (163.1 m)
Max Span115.2 ft (35.1 m)
Deck Width82.7 ft (25.2 m)
Deck Area4110.1 sq m
Main Spans2
Year Built1995

Traffic

Avg Daily Traffic104,844 (2023)
Truck Traffic7%
Lanes On Bridge5
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 Number121020017707274

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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