US Bridges

US52 US311 NC8 over I40 US311

Fair

Forsyth County, North Carolina · 0.6 Mi. S. Jct. SR3875 · Structure no. 000000000670078

Built
1971
54 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
226 ft
4 main spans
Daily traffic
63,500
2020 count
Owner
State
State Highway Agency

About this bridge

US52 US311 NC8 over I40 US311 is a steel stringer/multi-beam or girder carrying US52 US311 NC8 over I40 US311 in Forsyth County, North Carolina. It was built in 1971, so it is 54 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 63,500 vehicles a day, roughly 12% of them trucks, projected to reach 127,000 by 2040. The structure is 226 ft (68.8 m) long and 97 ft wide.

Location

Open in Google Maps
CarriesUS52 US311 NC8
CrossesI40 US311
Location0.6 Mi. S. Jct. SR3875
RouteU.S. Route 52
CountyForsyth County
StateNorth Carolina
Coordinates36.06262, -80.23152
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length226 ft (68.8 m)
Longest span67 ft (20.4 m)
Deck width97 ft (29.7 m)
Roadway width92 ft (28.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic63,500 (2020)
Projected traffic127,000 by 2040
Trucks12%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 US52 US311 NC8 over I40 US311 built?

It was built in 1971, making it 54 years old in 2025.

What condition is US52 US311 NC8 over I40 US311 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 December 2023.

How much traffic does US52 US311 NC8 over I40 US311 carry?

About 63,500 vehicles per day (2020 count), of which roughly 12% are trucks.

How long is US52 US311 NC8 over I40 US311?

The structure is 226 ft (68.8 m) long with a longest span of 67 ft (20.4 m) and a deck 97 ft wide.

Who owns US52 US311 NC8 over I40 US311?

It is owned by the State Highway Agency.