Structure 1831055 · Wake County, NC

Nc55 over Kit Creek

Carries Nc55 over Kit Creek, 1.4 Mi. W. Jct. Sr1630.

Overall conditionGood

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

How ratings work
Culvertsets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT33 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 33 ft across with 3 openings. Lengths and the car 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, so those are drawn as typical for a culvert.

Built197056 years old
Length32.8 ft10 m
Daily traffic16,500counted 2021
Last inspectedJune 2023every 24 months

Location

StateNorth Carolina
CountyWake
Location1.4 Mi. W. Jct. Sr1630
CarriesNc55
CrossesKit Creek
Coordinates35.85345, -78.89461

Physical Characteristics

MaterialConcrete Continuous
DesignCulvert
Total Length32.8 ft (10 m)
Max Span9.8 ft (3 m)
Deck Area256 sq m
Main Spans3
Year Built1970

Traffic

Avg Daily Traffic16,500 (2021)
Truck Traffic12%
Lanes On Bridge4

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000001831055

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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