Structure 413 · Crawford County, AR

US Highway 64 over Big Mulberry River

Carries US Highway 64 over Big Mulberry River, 1 Mi E Jct 215 In Mulbery.

Overall conditionPoor

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

How ratings work
Deck5/9 · Fair
Superstructuresets the rating4/9 · Poor
Substructuresets the rating4/9 · Poor
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT346 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 4/9 · sets the ratingSubstructure 4/9 · sets the rating

346 ft end to end, longest span 82 ft: about 5 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 deck arch.

Built1929rebuilt 1961
Length346.1 ft105.5 m
Daily traffic1,810counted 2017
Last inspectedJuly 2024every 12 months

Location

StateArkansas
CountyCrawford
Location1 Mi E Jct 215 In Mulbery
CarriesUS Highway 64
CrossesBig Mulberry River
Coordinates35.50166, -94.03387

Physical Characteristics

MaterialConcrete
DesignArch - Deck
Total Length346.1 ft (105.5 m)
Max Span82.0 ft (25 m)
Deck Width31.5 ft (9.6 m)
Deck Area1012.8 sq m
Main Spans3
Year Built1929 (reconstructed 1961)

Traffic

Avg Daily Traffic1,810 (2017)
Truck Traffic1%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000000413

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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