Structure M1860 · Newton County, AR

SH 123 Newton over Lagrue River

Carries SH 123 Newton over Lagrue River, 1.0 Mi SE Jct SH 74w &123.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT32 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 7/9

32 ft end to end. 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.

Built196462 years old
Length32.2 ft9.8 m
Daily traffic779counted 2018
Last inspectedJuly 2023every 24 months

Location

StateArkansas
CountyNewton
Location1.0 Mi SE Jct SH 74w &123
CarriesSH 123 Newton
CrossesLagrue River
Coordinates35.95547, -93.05762

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length32.2 ft (9.8 m)
Max Span27.9 ft (8.5 m)
Deck Width25.3 ft (7.7 m)
Deck Area75.5 sq m
Main Spans1
Year Built1964

Traffic

Avg Daily Traffic779 (2018)
Truck Traffic2%
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 Critical5 — Stable for scour
Structure Number0000000000M1860

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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