US Bridges

SR1564 over US70 US401 NC50

Fair

Wake County, North Carolina · 0.8 Mi.N. of SR2684 · Structure no. 000000001830581

Built
1982
43 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
361 ft
4 main spans
Daily traffic
11,000
2021 count
Owner
State
State Highway Agency

About this bridge

SR1564 over US70 US401 NC50 is a steel stringer/multi-beam or girder carrying SR1564 over US70 US401 NC50 in Wake County, North Carolina. It was built in 1982, so it is 43 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 11,000 vehicles a day, roughly 7% of them trucks, projected to reach 22,000 by 2040. The structure is 361 ft (110 m) long and 47 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSR1564
CrossesUS70 US401 NC50
Location0.8 Mi.N. of SR2684
RouteState Highway 1564
CountyWake County
StateNorth Carolina
Coordinates35.7417, -78.64916
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating61.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4 (+2 approach)
Design loadHS 20 + Mod
Structure length361 ft (110 m)
Longest span125 ft (38.1 m)
Deck width47 ft (14.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,000 (2021)
Projected traffic22,000 by 2040
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR1564 over US70 US401 NC50 built?

It was built in 1982, making it 43 years old in 2025.

What condition is SR1564 over US70 US401 NC50 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 February 2023.

How much traffic does SR1564 over US70 US401 NC50 carry?

About 11,000 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is SR1564 over US70 US401 NC50?

The structure is 361 ft (110 m) long with a longest span of 125 ft (38.1 m) and a deck 47 ft wide.

Who owns SR1564 over US70 US401 NC50?

It is owned by the State Highway Agency.