Structure 630593 · Durham County, NC

Us70 over Nc98

Carries Us70 over Nc98, 0.9 Mi E. Jct Sr1801.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT133 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 8/9

133 ft end to end. 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
Length132.9 ft40.5 m
Daily traffic65,700counted 2015
Last inspectedApril 2023every 24 months

Location

StateNorth Carolina
CountyDurham
Location0.9 Mi E. Jct Sr1801
CarriesUs70
CrossesNc98
Coordinates35.99127, -78.86297

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length132.9 ft (40.5 m)
Max Span128.0 ft (39 m)
Deck Width149.0 ft (45.4 m)
Deck Area1838.7 sq m
Main Spans1
Year Built2015

Traffic

Avg Daily Traffic65,700 (2015)
Truck Traffic7%
Lanes On Bridge5
Lanes Under Bridge4

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000630593

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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