Structure 121020005009513 · Harris County, TX

US 290 Ml over Dacoma RD

Carries US 290 Ml over Dacoma RD, 0.75 Mi NW Of IH 610.

Overall conditionGood

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT361 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

361 ft end to end, longest span 131 ft: about 5 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 box-beam bridge.

Built20179 years old
Length360.9 ft110 m
Daily traffic214,220counted 2013
Last inspectedAugust 2022every 48 months

Location

StateTexas
CountyHarris
Location0.75 Mi NW Of IH 610
CarriesUS 290 Ml
CrossesDacoma RD
Coordinates29.80735, -95.45566

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length360.9 ft (110 m)
Max Span130.9 ft (39.9 m)
Deck Width172.2 ft (52.5 m)
Deck Area5,775 sq m
Main Spans3
Year Built2017

Traffic

Avg Daily Traffic214,220 (2013)
Truck Traffic8%
Lanes On Bridge10
Lanes Under Bridge8

Inspection & Ownership

Last InspectionAugust 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number121020005009513

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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