Structure 166430000000000 · McIntosh County, OK

Ind. Nation Tp over N. Canadian River

Carries Ind. Nation Tp over N. Canadian River, 8.23 Mis S. Jct I-40.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,202 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 6/9

1,202 ft end to end, longest span 100 ft: about 3.3 football fields. 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.

Built1965rebuilt 1986
Length1202.1 ft366.4 m
Daily traffic8,100counted 2022
Last inspectedFebruary 2023every 24 months

Location

StateOklahoma
CountyMcIntosh
Location8.23 Mis S. Jct I-40
CarriesInd. Nation Tp
CrossesN. Canadian River
Coordinates35.31398, -95.95390

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length1202.1 ft (366.4 m)
Max Span100.1 ft (30.5 m)
Deck Width74.1 ft (22.6 m)
Deck Area8280.6 sq m
Main Spans12
Year Built1965 (reconstructed 1986)

Traffic

Avg Daily Traffic8,100 (2022)
Truck Traffic25%
Lanes On Bridge4

Inspection & Ownership

Last InspectionFebruary 2023
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number166430000000000

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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