Structure 180570019702430 · Dallas County, TX

US 175 WB over S Lamar ST & Sm Wright

Carries US 175 WB over S Lamar ST & Sm Wright, US 175 At Sm Wright.

Overall conditionGood

Set by its lowest-rated component: Deck and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT977 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

977 ft end to end, longest span 122 ft: about 2.7 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 bridge of this kind.

Built20206 years old
Length977.0 ft297.8 m
Daily traffic36,295counted 2022
Last inspectedMay 2024every 24 months

Location

StateTexas
CountyDallas
LocationUS 175 At Sm Wright
CarriesUS 175 WB
CrossesS Lamar ST & Sm Wright
Coordinates32.74600, -96.75840

Physical Characteristics

MaterialOther
DesignOther
Total Length977.0 ft (297.8 m)
Max Span122.0 ft (37.2 m)
Deck Width70.5 ft (21.5 m)
Deck Area6402.7 sq m
Main Spans8
Year Built2020

Traffic

Avg Daily Traffic36,295 (2022)
Truck Traffic6%
Lanes On Bridge2
Lanes Under Bridge12

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number180570019702430

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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