Structure 180430036404190 · Collin County, TX

Ohio Drive over Srt Ml & SH 121 Fr

Carries Ohio Drive over Srt Ml & SH 121 Fr, 0.5 Mi NE Of SH 289.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT476 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

476 ft end to end, longest span 130 ft: about 7 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.

Built200818 years old
Length476.0 ft145.1 m
Daily traffic16,010counted 2019
Last inspectedDecember 2023every 24 months

Location

StateTexas
CountyCollin
Location0.5 Mi NE Of SH 289
CarriesOhio Drive
CrossesSrt Ml & SH 121 Fr
Coordinates33.10031, -96.79764

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length476.0 ft (145.1 m)
Max Span129.9 ft (39.6 m)
Deck Width102.0 ft (31.1 m)
Deck Area4512.6 sq m
Main Spans4
Year Built2008

Traffic

Avg Daily Traffic16,010 (2019)
Truck Traffic3%
Lanes On Bridge5
Lanes Under Bridge16

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 Number180430036404190

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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