Structure 180570237402444 · Dallas County, TX

IH 635 EB over SH 78 & Kcs Rr

Carries IH 635 EB over SH 78 & Kcs Rr, 1.1 Mi E Of Jupiter RD.

Overall conditionPoor

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

How ratings work
Decksets the rating4/9 · Poor
Superstructure6/9 · Satisfactory
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT308 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 6/9Substructure 7/9

308 ft end to end, longest span 107 ft: about 4 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.

Built196759 years old
Length308.1 ft93.9 m
Daily traffic76,110counted 2013
Last inspectedAugust 2023every 24 months

Location

StateTexas
CountyDallas
Location1.1 Mi E Of Jupiter RD
CarriesIH 635 EB
CrossesSH 78 & Kcs Rr
Coordinates32.86808, -96.66795

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length308.1 ft (93.9 m)
Max Span107.0 ft (32.6 m)
Deck Width70.5 ft (21.5 m)
Deck Area2018.8 sq m
Main Spans4
Year Built1967

Traffic

Avg Daily Traffic76,110 (2013)
Truck Traffic13%
Lanes On Bridge4
Lanes Under Bridge3

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure Number180570237402444

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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