Structure B6686 · Washington County, AR

US 412-east Bound over Beaver Lake

Carries US 412-east Bound over Beaver Lake, 7.1 Mi E. Jct HWY US 71b.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT890 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 7/9Substructure 5/9 · sets the rating

890 ft end to end, longest span 190 ft: about 2.5 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 multi-beam bridge.

Built199927 years old
Length890.1 ft271.3 m
Daily traffic7,513counted 2018
Last inspectedSeptember 2023every 24 months

Location

StateArkansas
CountyWashington
Location7.1 Mi E. Jct HWY US 71b
CarriesUS 412-east Bound
CrossesBeaver Lake
Coordinates36.17117, -94.02127

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length890.1 ft (271.3 m)
Max Span190.3 ft (58 m)
Deck Width40.4 ft (12.3 m)
Deck Area3337.0 sq m
Main Spans5
Year Built1999

Traffic

Avg Daily Traffic7,513 (2018)
Truck Traffic9%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number0000000000B6686

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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