Structure 1381 · Clark County, AR

Us67 Sec4 Lm 0.01 over Little Missouri River

Carries Us67 Sec4 Lm 0.01 over Little Missouri River, 2.2 Mi S SH 51.

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 FT1,161 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 4/9 · sets the ratingSubstructure 5/9

1,161 ft end to end, longest span 112 ft: about 3.2 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 through truss.

Built193195 years old
Length1161.1 ft353.9 m
Daily traffic1,492counted 2018
Last inspectedJanuary 2023every 24 months

Location

StateArkansas
CountyClark
Location2.2 Mi S SH 51
CarriesUs67 Sec4 Lm 0.01
CrossesLittle Missouri River
Coordinates33.87794, -93.30596

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length1161.1 ft (353.9 m)
Max Span111.9 ft (34.1 m)
Deck Width26.9 ft (8.2 m)
Deck Area2902.0 sq m
Main Spans3
Year Built1931

Traffic

Avg Daily Traffic1,492 (2018)
Truck Traffic14%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is on the National Register of Historic Places
Scour Critical5 — Stable for scour
Structure Number000000000001381

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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