Structure 183150000000000 · Tulsa County, OK

36th St. N. EB over U.s. 75 Under

Carries 36th St. N. EB over U.s. 75 Under, 3.9 Mi N Jct. I-244.

Overall conditionFair

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

How ratings work
Deck8/9 · Very Good
Superstructure8/9 · Very Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT203 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 6/9 · sets the rating

203 ft end to end, longest span 100 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.

Built197254 years old
Length202.8 ft61.8 m
Daily traffic5,000counted 2022
Last inspectedOctober 2024every 24 months

Location

StateOklahoma
CountyTulsa
Location3.9 Mi N Jct. I-244
Carries36th St. N. EB
CrossesU.s. 75 Under
Coordinates36.20611, -95.94639

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length202.8 ft (61.8 m)
Max Span100.1 ft (30.5 m)
Deck Width33.8 ft (10.3 m)
Deck Area636.5 sq m
Main Spans2
Year Built1972

Traffic

Avg Daily Traffic5,000 (2022)
Truck Traffic5%
Lanes On Bridge2
Lanes Under Bridge6

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number183150000000000

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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