Structure 180570058101397 · Dallas County, TX

Loop 12 SB over Lawther DR

Carries Loop 12 SB over Lawther DR, 0.30 Mi S Of Spur 244.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT100 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

100 ft end to end. Lengths and the car 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.

Built195967 years old
Length100.1 ft30.5 m
Daily traffic12,204counted 2023
Last inspectedDecember 2023every 24 months

Location

StateTexas
CountyDallas
Location0.30 Mi S Of Spur 244
CarriesLoop 12 SB
CrossesLawther DR
Coordinates32.85713, -96.71773

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length100.1 ft (30.5 m)
Max Span40.0 ft (12.2 m)
Deck Width40.7 ft (12.4 m)
Deck Area378.2 sq m
Main Spans1
Year Built1959

Traffic

Avg Daily Traffic12,204 (2023)
Truck Traffic6%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure Number180570058101397

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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