Structure 6585 · Boone County, AR

US 65 Boone over Dry Branch

Carries US 65 Boone over Dry Branch, 0.09 Mi N W Jct SH 206.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT102 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

102 ft end to end, longest span 36 ft. Lengths and the car 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 multi-beam bridge.

Built199630 years old
Length102.0 ft31.1 m
Daily traffic18,000counted 2018
Last inspectedMarch 2022every 48 months

Location

StateArkansas
CountyBoone
Location0.09 Mi N W Jct SH 206
CarriesUS 65 Boone
CrossesDry Branch
Coordinates36.20099, -93.04930

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length102.0 ft (31.1 m)
Max Span36.1 ft (11 m)
Deck Width73.8 ft (22.5 m)
Deck Area699.8 sq m
Main Spans3
Year Built1996

Traffic

Avg Daily Traffic18,000 (2018)
Truck Traffic9%
Lanes On Bridge5

Inspection & Ownership

Last InspectionMarch 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000006585

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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