Structure 630010 · Durham County, NC

Us501n over I85 Us15 Us70

Carries Us501n over I85 Us15 Us70, 1.23 Mi S. Of Jct Sr1407.

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 FT373 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

373 ft end to end, longest span 114 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.

Built200620 years old
Length372.7 ft113.6 m
Daily traffic5,250counted 2021
Last inspectedNovember 2023every 24 months

Location

StateNorth Carolina
CountyDurham
Location1.23 Mi S. Of Jct Sr1407
CarriesUs501n
CrossesI85 Us15 Us70
Coordinates36.02058, -78.90525

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length372.7 ft (113.6 m)
Max Span113.8 ft (34.7 m)
Deck Width58.7 ft (17.9 m)
Deck Area2033.4 sq m
Main Spans4
Year Built2006

Traffic

Avg Daily Traffic5,250 (2021)
Truck Traffic12%
Lanes On Bridge4
Lanes Under Bridge11

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000630010

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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