Structure 121020002713172 · Harris County, TX

US 59 SB over Main ST To Almeda RD

Carries US 59 SB over Main ST To Almeda RD, 0.10 Mi W Of SH 288.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT3,298 FT OVERALL500 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

3,298 ft end to end, longest span 123 ft: about 9.2 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.

Built197551 years old
Length3297.9 ft1005.2 m
Daily traffic91,370counted 2013
Last inspectedNovember 2022every 24 months

Location

StateTexas
CountyHarris
Location0.10 Mi W Of SH 288
CarriesUS 59 SB
CrossesMain ST To Almeda RD
Coordinates29.73265, -95.37986

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length3297.9 ft (1005.2 m)
Max Span123.0 ft (37.5 m)
Deck Width50.9 ft (15.5 m)
Deck Area15580.6 sq m
Main Spans27
Year Built1975

Traffic

Avg Daily Traffic91,370 (2013)
Truck Traffic9%
Lanes On Bridge3
Lanes Under Bridge38

Inspection & Ownership

Last InspectionNovember 2022
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure Number121020002713172

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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