Structure 180430036404178 · Collin County, TX

Srt SB over Legacy Drive

Carries Srt SB over Legacy Drive, 1.0 Mi SW Of Dnt.

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 FT313 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

313 ft end to end: about 4 semi-trucks nose to tail. 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.

Built2010rebuilt 2020
Length313.0 ft95.4 m
Daily traffic110,632counted 2020
Last inspectedDecember 2023every 24 months

Location

StateTexas
CountyCollin
Location1.0 Mi SW Of Dnt
CarriesSrt SB
CrossesLegacy Drive
Coordinates33.08679, -96.83890

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length313.0 ft (95.4 m)
Max Span128.9 ft (39.3 m)
Deck Width82.7 ft (25.2 m)
Deck Area2404.1 sq m
Main Spans1
Year Built2010 (reconstructed 2020)

Traffic

Avg Daily Traffic110,632 (2020)
Truck Traffic5%
Lanes On Bridge5
Lanes Under Bridge11

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerLocal Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number180430036404178

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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