Structure 143790000000000 · Oklahoma County, OK

NE 23rd Turn Lane over I-35 Under (s.bridge Und

Carries NE 23rd Turn Lane over I-35 Under (s.bridge Und, 1.7 Mi N Of Jct W/i40.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT115 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

115 ft end to end, longest span 57 ft. Lengths and the car 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 rigid-frame bridge.

Built195967 years old
Length115.2 ft35.1 m
Daily traffic5,000counted 2022
Last inspectedJune 2024every 24 months

Location

StateOklahoma
CountyOklahoma
Location1.7 Mi N Of Jct W/i40
CarriesNE 23rd Turn Lane
CrossesI-35 Under (s.bridge Und
Coordinates35.49279, -97.46540

Physical Characteristics

MaterialConcrete Continuous
DesignFrame
Total Length115.2 ft (35.1 m)
Max Span57.1 ft (17.4 m)
Deck Width39.4 ft (12 m)
Deck Area421.2 sq m
Main Spans2
Year Built1959

Traffic

Avg Daily Traffic5,000 (2022)
Truck Traffic5%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number143790000000000

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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