Structure 258650000000000 · Canadian County, OK

NW 122nd St. over Kilpatrick Tp Under

Carries NW 122nd St. over Kilpatrick Tp Under, 119.90.

Overall conditionGood

Set by its lowest-rated component: Substructure at 7 of 9.

How ratings work
Deck8/9 · Very Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT216 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 7/9 · sets the rating

216 ft end to end, longest span 108 ft: about 3 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.

Built200026 years old
Length215.9 ft65.8 m
Daily traffic820counted 2022
Last inspectedMarch 2023every 24 months

Location

StateOklahoma
CountyCanadian
Location119.90
CarriesNW 122nd St.
CrossesKilpatrick Tp Under
Coordinates35.59499, -97.68779

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length215.9 ft (65.8 m)
Max Span107.9 ft (32.9 m)
Deck Width30.8 ft (9.4 m)
Deck Area618.5 sq m
Main Spans2
Year Built2000

Traffic

Avg Daily Traffic820 (2022)
Truck Traffic5%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number258650000000000

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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