Structure 7287 · Washington County, AR

I-49 SB Lns over Porter Road

Carries I-49 SB Lns over Porter Road, 2.69 No Jct 49 & 62.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT391 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 7/9 · sets the ratingSubstructure 8/9

391 ft end to end, longest span 167 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 multi-beam bridge.

Built201511 years old
Length391.1 ft119.2 m
Daily traffic69,203counted 2018
Last inspectedDecember 2021every 48 months

Location

StateArkansas
CountyWashington
Location2.69 No Jct 49 & 62
CarriesI-49 SB Lns
CrossesPorter Road
Coordinates36.08967, -94.19337

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length391.1 ft (119.2 m)
Max Span167.0 ft (50.9 m)
Deck Width111.2 ft (33.9 m)
Deck Area4040.9 sq m
Main Spans3
Year Built2015

Traffic

Avg Daily Traffic69,203 (2018)
Truck Traffic12%
Lanes On Bridge6
Lanes Under Bridge2

Inspection & Ownership

Last InspectionDecember 2021
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000007287

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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