Structure 191820000000000 · Pottawatomie County, OK

N3370 over Creek

Carries N3370 over Creek, 1.7n & 1e Of Bethel Acre.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT55 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 5/9 · sets the rating

55 ft end to end. 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 girder bridge.

Built197650 years old
Length54.8 ft16.7 m
Daily traffic24counted 2022
Last inspectedJuly 2023every 24 months

Location

StateOklahoma
CountyPottawatomie
Location1.7n & 1e Of Bethel Acre
CarriesN3370
CrossesCreek
Coordinates35.34357, -97.00072

Physical Characteristics

MaterialSteel
DesignGirder and Floorbeam
Total Length54.8 ft (16.7 m)
Max Span52.8 ft (16.1 m)
Deck Width21.0 ft (6.4 m)
Deck Area106.9 sq m
Main Spans1
Year Built1976

Traffic

Avg Daily Traffic24 (2022)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number191820000000000

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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