Structure 630594 · Durham County, NC

Carr Road over Us70

Carries Carr Road over Us70, .10 Mi.w.jct. N.hoover RD.

Overall conditionGood

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT270 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

270 ft end to end, longest span 140 ft: about 4 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.

Built20206 years old
Length269.7 ft82.2 m
Daily traffic58,050counted 2018
Last inspectedApril 2023every 24 months

Location

StateNorth Carolina
CountyDurham
Location.10 Mi.w.jct. N.hoover RD
CarriesCarr Road
CrossesUs70
Coordinates35.98136, -78.85740

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length269.7 ft (82.2 m)
Max Span139.8 ft (42.6 m)
Deck Width49.5 ft (15.1 m)
Deck Area1241.2 sq m
Main Spans2
Year Built2020

Traffic

Avg Daily Traffic58,050 (2018)
Truck Traffic7%
Lanes On Bridge2
Lanes Under Bridge5

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 Number000000000630594

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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