Structure 19380000000000 · Seminole County, OK

N3560 over Salt Creek

Carries N3560 over Salt Creek, 2.7 S Of Wolf.

Overall conditionPoor

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating3/9 · Serious
Substructure5/9 · Fair
Channelnot part of overall3/9 · Serious
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT313 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 3/9 · sets the ratingSubstructure 5/9

313 ft end to end, longest span 84 ft: about 4 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 through truss.

Built192799 years old
Length312.7 ft95.3 m
Daily traffic100counted 2022
Last inspectedJune 2023every 24 months

Location

StateOklahoma
CountySeminole
Location2.7 S Of Wolf
CarriesN3560
CrossesSalt Creek
Coordinates35.04772, -96.67000

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length312.7 ft (95.3 m)
Max Span84.0 ft (25.6 m)
Deck Width23.0 ft (7 m)
Deck Area667.1 sq m
Main Spans2
Year Built1927

Traffic

Avg Daily Traffic100 (2022)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical4 — Foundations need monitoring
Structure Number019380000000000

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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