Structure 1830549 · Wake County, NC

Sr1664 over Sr1728

Carries Sr1664 over Sr1728, 0.16 Mi. S. Jct. Sr1774.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 4 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT251 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 4/9 · sets the rating

251 ft end to end, longest span 89 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.

Built196957 years old
Length251.0 ft76.5 m
Daily traffic16,500counted 2021
Last inspectedDecember 2023every 24 months

Location

StateNorth Carolina
CountyWake
Location0.16 Mi. S. Jct. Sr1774
CarriesSr1664
CrossesSr1728
Coordinates35.80408, -78.70694

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length251.0 ft (76.5 m)
Max Span88.9 ft (27.1 m)
Deck Width71.9 ft (21.9 m)
Deck Area1675.3 sq m
Main Spans4
Year Built1969

Traffic

Avg Daily Traffic16,500 (2021)
Truck Traffic6%
Lanes On Bridge5
Lanes Under Bridge4

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000001830549

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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