Structure 38050000000000 · Bryan County, OK

0746c (old US 69) over Blue River

Carries 0746c (old US 69) over Blue River, .1 NE Of Armstrong.

Overall conditionPoor

Set by its lowest-rated component: Superstructure at 4 of 9.

How ratings work
Deck5/9 · Fair
Superstructuresets the rating4/9 · Poor
Substructure5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT267 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 4/9 · sets the ratingSubstructure 5/9

267 ft end to end: 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.

Built193294 years old
Length267.4 ft81.5 m
Daily traffic100counted 2022
Last inspectedJanuary 2024every 12 months

Location

StateOklahoma
CountyBryan
Location.1 NE Of Armstrong
Carries0746c (old US 69)
CrossesBlue River
Coordinates34.05358, -96.34204

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length267.4 ft (81.5 m)
Max Span140.1 ft (42.7 m)
Deck Width25.9 ft (7.9 m)
Deck Area643.9 sq m
Main Spans1
Year Built1932

Traffic

Avg Daily Traffic100 (2022)
Truck Traffic15%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number038050000000000

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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