Structure 180570035304126 · Dallas County, TX

Sp 348 over Lake Carolyn

Carries Sp 348 over Lake Carolyn, 2.2 Mi NW Of Lp 12.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT30 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

30 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.

Built197551 years old
Length29.9 ft9.1 m
Daily traffic15,941counted 2023
Last inspectedJanuary 2024every 24 months

Location

StateTexas
CountyDallas
Location2.2 Mi NW Of Lp 12
CarriesSp 348
CrossesLake Carolyn
Coordinates32.87562, -96.93528

Physical Characteristics

MaterialConcrete
DesignStringer/Multi-beam
Total Length29.9 ft (9.1 m)
Max Span29.9 ft (9.1 m)
Deck Width88.3 ft (26.9 m)
Deck Area244.8 sq m
Main Spans1
Year Built1975

Traffic

Avg Daily Traffic15,941 (2023)
Truck Traffic10%
Lanes On Bridge4

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical8 — Stable, low risk
Structure Number180570035304126

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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