Structure 180570004707483 · Dallas County, TX

US 75 NB over Cottonwood Creek

Carries US 75 NB over Cottonwood Creek, 0.3 Mi NE Of IH 635.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT268 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

268 ft end to end, longest span 91 ft: 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.

Built200521 years old
Length268.0 ft81.7 m
Daily traffic—reported figure implausible
Last inspectedSeptember 2023every 24 months

Location

StateTexas
CountyDallas
Location0.3 Mi NE Of IH 635
CarriesUS 75 NB
CrossesCottonwood Creek
Coordinates32.92860, -96.75986

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length268.0 ft (81.7 m)
Max Span90.9 ft (27.7 m)
Deck Width58.1 ft (17.7 m)
Deck Area1446.1 sq m
Main Spans3
Year Built2005

Traffic

Avg Daily Traffic219,814 (2020)
That is about 73,271 vehicles per lane per day — beyond what any U.S. road carries (the busiest freeways run about 25,000–30,000). It is almost certainly a data-entry error in the National Bridge Inventory, so we leave this bridge out of traffic rankings.
Truck Traffic9%
Lanes On Bridge3

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number180570004707483

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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