Structure 180570000911312 · Dallas County, TX

IH 30 WB Conn B over IH 45 Conn C & D

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

Overall conditionFair

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,160 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

1,160 ft end to end, longest span 156 ft: about 3.2 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
Length1160.1 ft353.6 m
Daily traffic19,270counted 2013
Last inspectedMarch 2024every 24 months

Location

StateTexas
CountyDallas
Location0.3 Mi E Of Preston ST
CarriesIH 30 WB Conn B
CrossesIH 45 Conn C & D
Coordinates32.77927, -96.78189

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1160.1 ft (353.6 m)
Max Span155.8 ft (47.5 m)
Deck Width26.9 ft (8.2 m)
Deck Area2899.5 sq m
Main Spans4
Year Built1971

Traffic

Avg Daily Traffic19,270 (2013)
Truck Traffic8%
Lanes On Bridge1
Lanes Under Bridge12

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure Number180570000911312

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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