Structure 180570004707390 · Dallas County, TX

Henderson/knox EB over US 75

Carries Henderson/knox EB over US 75, 3.30 Mi N Of IH 30.

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 FT153 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

153 ft end to end, longest span 76 ft: about 2 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.

Built199927 years old
Length152.9 ft46.6 m
Daily traffic13,631counted 2019
Last inspectedApril 2022every 48 months

Location

StateTexas
CountyDallas
Location3.30 Mi N Of IH 30
CarriesHenderson/knox EB
CrossesUS 75
Coordinates32.82195, -96.78608

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length152.9 ft (46.6 m)
Max Span76.1 ft (23.2 m)
Deck Width101.0 ft (30.8 m)
Deck Area1435.3 sq m
Main Spans2
Year Built1999

Traffic

Avg Daily Traffic13,631 (2019)
Lanes On Bridge4
Lanes Under Bridge8

Inspection & Ownership

Last InspectionApril 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number180570004707390

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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