Structure 234750000000000 · Grant County, OK

N3100 over Creek

Carries N3100 over Creek, .4n2.2e2.7nof Deer Creek.

Overall conditionPoor

Set by its lowest-rated component: Deck and Superstructure and Substructure at 0 of 9.

How ratings work
Decksets the rating0/9 · Failed
Superstructuresets the rating0/9 · Failed
Substructuresets the rating0/9 · Failed
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
21 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 0/9Superstructure 0/9Substructure 0/9

21 ft end to end. 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 or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built195076 years old
Length21.0 ft6.4 m
Daily traffic24counted 2022
Last inspectedMay 2023every 24 months

Location

StateOklahoma
CountyGrant
Location.4n2.2e2.7nof Deer Creek
CarriesN3100
CrossesCreek
Coordinates36.63500, -97.48000

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length21.0 ft (6.4 m)
Max Span20.0 ft (6.1 m)
Deck Width18.0 ft (5.5 m)
Deck Area35.2 sq m
Main Spans1
Year Built1950

Traffic

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

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number234750000000000

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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