Structure 180570000911353 · Dallas County, TX

IH 30 Wbml over IH 635

Carries IH 30 Wbml over IH 635, At IH 635 Interchange.

Overall conditionPoor

Set by its lowest-rated component: Deck at 4 of 9.

How ratings work
Decksets the rating4/9 · Poor
Superstructure6/9 · Satisfactory
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT350 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 6/9Substructure 6/9

350 ft end to end, longest span 100 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 multi-beam bridge.

Built1971rebuilt 1998
Length350.1 ft106.7 m
Daily traffic81,504counted 2019
Last inspectedApril 2024every 24 months

Location

StateTexas
CountyDallas
LocationAt IH 635 Interchange
CarriesIH 30 Wbml
CrossesIH 635
Coordinates32.82324, -96.62972

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length350.1 ft (106.7 m)
Max Span100.1 ft (30.5 m)
Deck Width54.1 ft (16.5 m)
Deck Area1760.5 sq m
Main Spans4
Year Built1971 (reconstructed 1998)

Traffic

Avg Daily Traffic81,504 (2019)
Truck Traffic8%
Lanes On Bridge3
Lanes Under Bridge8

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure Number180570000911353

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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