Structure 180570000911313 · Dallas County, TX

IH 30 EB Conn A over IH 45 Conn C & D

Carries IH 30 EB Conn A over IH 45 Conn C & D, 0.3 Mi E Of Preston ST.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT999 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 6/9

999 ft end to end, longest span 176 ft: about 2.8 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.

Built197155 years old
Length999.0 ft304.5 m
Daily traffic19,270counted 2013
Last inspectedMarch 2024every 24 months

Location

StateTexas
CountyDallas
Location0.3 Mi E Of Preston ST
CarriesIH 30 EB Conn A
CrossesIH 45 Conn C & D
Coordinates32.77857, -96.78215

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length999.0 ft (304.5 m)
Max Span175.9 ft (53.6 m)
Deck Width26.9 ft (8.2 m)
Deck Area2496.9 sq m
Main Spans4
Year Built1971

Traffic

Avg Daily Traffic19,270 (2013)
Truck Traffic8%
Lanes On Bridge1
Lanes Under Bridge10

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure Number180570000911313

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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