Structure 1830950 · Wake County, NC

I 440 Ramp SB over I440

Carries I 440 Ramp SB over I440, Jct I440 & Us64 Byp..

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 FT1,330 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

1,330 ft end to end, longest span 175 ft: about 3.7 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.

Built200521 years old
Length1329.7 ft405.3 m
Daily traffic93,000counted 2020
Last inspectedMarch 2023every 24 months

Location

StateNorth Carolina
CountyWake
LocationJct I440 & Us64 Byp.
CarriesI 440 Ramp SB
CrossesI440
Coordinates35.78189, -78.57353

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1329.7 ft (405.3 m)
Max Span174.9 ft (53.3 m)
Deck Width42.3 ft (12.9 m)
Deck Area5228.4 sq m
Main Spans9
Year Built2005

Traffic

Avg Daily Traffic93,000 (2020)
Truck Traffic16%
Lanes On Bridge2
Lanes Under Bridge6

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000001830950

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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