Structure 1010507 · Johnston County, NC

Us70e.ramp over Us70

Carries Us70e.ramp over Us70, 0.5 Mi.w.jct.us301.

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 FT356 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

356 ft end to end, longest span 117 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.

Built199135 years old
Length356.0 ft108.5 m
Daily traffic5,666counted 2017
Last inspectedSeptember 2021every 48 months

Location

StateNorth Carolina
CountyJohnston
Location0.5 Mi.w.jct.us301
CarriesUs70e.ramp
CrossesUs70
Coordinates35.52900, -78.30720

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length356.0 ft (108.5 m)
Max Span116.8 ft (35.6 m)
Deck Width41.0 ft (12.5 m)
Deck Area1356.2 sq m
Main Spans4
Year Built1991

Traffic

Avg Daily Traffic5,666 (2017)
Truck Traffic14%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionSeptember 2021
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000001010507

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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