Structure 180430004706427 · Collin County, TX

US 75 SB over E 15th Street

Carries US 75 SB over E 15th Street, 1.10 Mi N Of G Bush Tnpke.

Overall conditionFair

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT277 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 6/9 · sets the rating

277 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.

Built198937 years old
Length276.9 ft84.4 m
Daily traffic109,019counted 2019
Last inspectedOctober 2023every 48 months

Location

StateTexas
CountyCollin
Location1.10 Mi N Of G Bush Tnpke
CarriesUS 75 SB
CrossesE 15th Street
Coordinates33.01972, -96.70951

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length276.9 ft (84.4 m)
Max Span110.9 ft (33.8 m)
Deck Width73.2 ft (22.3 m)
Deck Area1882.1 sq m
Main Spans1
Year Built1989

Traffic

Avg Daily Traffic109,019 (2019)
Truck Traffic6%
Lanes On Bridge5
Lanes Under Bridge7

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number180430004706427

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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