Structure 237860000000000 · Noble County, OK

N3160 over Dean Creek

Carries N3160 over Dean Creek, 2.5w 3n Of I-35/CM Tpk.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 3 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating3/9 · Serious
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
20 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 3/9 · sets the rating

20 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.

Built199432 years old
Length20.0 ft6.1 m
Daily traffic50counted 2022
Last inspectedAugust 2024every 6 months

Location

StateOklahoma
CountyNoble
Location2.5w 3n Of I-35/CM Tpk
CarriesN3160
CrossesDean Creek
Coordinates36.44239, -97.37241

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length20.0 ft (6.1 m)
Max Span19.4 ft (5.9 m)
Deck Width24.0 ft (7.3 m)
Deck Area44.5 sq m
Main Spans1
Year Built1994

Traffic

Avg Daily Traffic50 (2022)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 6 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number237860000000000

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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