Structure 32860000000000 · Johnston County, OK

S.h. 99 over Big Sandy Creek

Carries S.h. 99 over Big Sandy Creek, .2 Mi S Jct Sh7 East.

Overall conditionGood

Set by its lowest-rated component: Culvert at 8 of 9.

How ratings work
Culvertsets the rating8/9 · Very Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
22 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 8/9

A culvert 22 ft across with 3 openings. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights, so those are drawn as typical for a culvert.

Built1931rebuilt 2018
Length22.0 ft6.7 m
Daily traffic1,900counted 2022
Last inspectedMay 2024every 24 months

Location

StateOklahoma
CountyJohnston
Location.2 Mi S Jct Sh7 East
CarriesS.h. 99
CrossesBig Sandy Creek
Coordinates34.35584, -96.63589

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length22.0 ft (6.7 m)
Max Span5.9 ft (1.8 m)
Deck Width24.0 ft (7.3 m)
Deck Area48.9 sq m
Main Spans3
Year Built1931 (reconstructed 2018)

Traffic

Avg Daily Traffic1,900 (2022)
Truck Traffic16%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number032860000000000

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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