Structure 550009 · Dare County, NC

Us64 over Croatan Sound

Carries Us64 over Croatan Sound, 1.6 Mi. E. Jct. Sr1113.

Overall conditionPoor

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

How ratings work
Deck5/9 · Fair
Superstructure5/9 · Fair
Substructuresets the rating4/9 · Poor
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
14,265 FT OVERALL2,500 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 4/9 · sets the rating

14,265 ft end to end: about 40 football fields, or 2.7 miles. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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 girder bridge.

Built1955rebuilt 1966
Length14265.1 ft4,348 m
Daily traffic2,400counted 2021
Last inspectedMay 2023every 12 months

Location

StateNorth Carolina
CountyDare
Location1.6 Mi. E. Jct. Sr1113
CarriesUs64
CrossesCroatan Sound
Coordinates35.91968, -75.74582

Physical Characteristics

MaterialSteel
DesignGirder and Floorbeam
Total Length14265.1 ft (4,348 m)
Max Span129.9 ft (39.6 m)
Deck Width28.2 ft (8.6 m)
Deck Area37392.8 sq m
Main Spans1
Year Built1955 (reconstructed 1966)

Traffic

Avg Daily Traffic2,400 (2021)
Truck Traffic6%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number000000000550009

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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