Structure 1831046 · Wake County, NC

Nc540n.ramp over Dirt

Carries Nc540n.ramp over Dirt, .34 Mi N Of Sr147 Ramp.

Overall conditionGood

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT334 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

334 ft end to end, longest span 139 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.

Built200719 years old
Length334.0 ft101.8 m
Daily traffic9,125counted 2019
Last inspectedNovember 2023every 24 months

Location

StateNorth Carolina
CountyWake
Location.34 Mi N Of Sr147 Ramp
CarriesNc540n.ramp
CrossesDirt
Coordinates35.85383, -78.85847

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length334.0 ft (101.8 m)
Max Span138.8 ft (42.3 m)
Deck Width42.3 ft (12.9 m)
Deck Area1313.2 sq m
Main Spans3
Year Built2007

Traffic

Avg Daily Traffic9,125 (2019)
Truck Traffic12%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000001831046

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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