Structure 1830260 · Wake County, NC

I440 over Us70

Carries I440 over Us70, 1.88 Mi E Jct Sr1676.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT250 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

250 ft end to end, longest span 70 ft: about 3 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.

Built1960rebuilt 1993
Length250.0 ft76.2 m
Daily traffic120,000counted 2020
Last inspectedJuly 2024every 24 months

Location

StateNorth Carolina
CountyWake
Location1.88 Mi E Jct Sr1676
CarriesI440
CrossesUs70
Coordinates35.83542, -78.66948

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length250.0 ft (76.2 m)
Max Span69.9 ft (21.3 m)
Deck Width141.1 ft (43 m)
Deck Area3276.6 sq m
Main Spans4
Year Built1960 (reconstructed 1993)

Traffic

Avg Daily Traffic120,000 (2020)
Truck Traffic16%
Lanes On Bridge8
Lanes Under Bridge7

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000001830260

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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