Structure 180570009403275 · Dallas County, TX

SH 356 WB Conn over SH 183

Carries SH 356 WB Conn over SH 183, 4.3 Mi W Of Lp 12.

Overall conditionFair

Set by its lowest-rated component: Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT600 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

600 ft end to end, longest span 126 ft: about 1.7 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.

Built198838 years old
Length600.1 ft182.9 m
Daily traffic13,980counted 2016
Last inspectedFebruary 2024every 24 months

Location

StateTexas
CountyDallas
Location4.3 Mi W Of Lp 12
CarriesSH 356 WB Conn
CrossesSH 183
Coordinates32.83628, -96.98914

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length600.1 ft (182.9 m)
Max Span126.0 ft (38.4 m)
Deck Width28.9 ft (8.8 m)
Deck Area1609.5 sq m
Main Spans5
Year Built1988

Traffic

Avg Daily Traffic13,980 (2016)
Truck Traffic11%
Lanes On Bridge1
Lanes Under Bridge9

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number180570009403275

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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