US Bridges

NC55 over US64

Fair

Wake County, North Carolina · @ Jct. NC55 & US64 · Structure no. 000000001830010

Built
1973
52 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
248 ft
2 main spans
Daily traffic
30,000
2021 count
Owner
State
State Highway Agency

About this bridge

NC55 over US64 is a steel stringer/multi-beam or girder carrying NC55 over US64 in Wake County, North Carolina. It was built in 1973, so it is 52 years old, older than the North Carolina average of 38.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 30,000 vehicles a day, roughly 12% of them trucks, projected to reach 60,000 by 2040. The structure is 248 ft (75.5 m) long and 70 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesNC55
CrossesUS64
Location@ Jct. NC55 & US64
RouteState Highway 55
CountyWake County
StateNorth Carolina
Coordinates35.74823, -78.87541
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating42 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length248 ft (75.5 m)
Longest span124 ft (37.7 m)
Deck width70 ft (21.3 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30,000 (2021)
Projected traffic60,000 by 2040
Trucks12%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was NC55 over US64 built?

It was built in 1973, making it 52 years old in 2025.

What condition is NC55 over US64 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2024.

How much traffic does NC55 over US64 carry?

About 30,000 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is NC55 over US64?

The structure is 248 ft (75.5 m) long with a longest span of 124 ft (37.7 m) and a deck 70 ft wide.

Who owns NC55 over US64?

It is owned by the State Highway Agency.