Structure 176110000000000 · Muskogee County, OK

S.h. 100 over Arkansas River

Carries S.h. 100 over Arkansas River, Sequoyah C/l.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,928 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 6/9

1,928 ft end to end, longest span 334 ft: about 5.4 football fields. 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 girder bridge.

Built196957 years old
Length1928.1 ft587.7 m
Daily traffic3,300counted 2022
Last inspectedJuly 2023every 24 months

Location

StateOklahoma
CountyMuskogee
LocationSequoyah C/l
CarriesS.h. 100
CrossesArkansas River
Coordinates35.52072, -95.12358

Physical Characteristics

MaterialSteel Continuous
DesignGirder and Floorbeam
Total Length1928.1 ft (587.7 m)
Max Span334.0 ft (101.8 m)
Deck Width35.4 ft (10.8 m)
Deck Area6347.2 sq m
Main Spans3
Year Built1969

Traffic

Avg Daily Traffic3,300 (2022)
Truck Traffic15%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number176110000000000

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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