US Bridges

US311 over I73 US220

Fair

Randolph County, North Carolina · 0.6 Mi. N. Jct. US220BUS · Structure no. 000000001510010

Built
1971
54 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
286 ft
2 main spans
Daily traffic
9,200
2022 count
Owner
State
State Highway Agency

About this bridge

US311 over I73 US220 is a steel continuous stringer/multi-beam or girder carrying US311 over I73 US220 in Randolph 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 9,200 vehicles a day, roughly 14% of them trucks, projected to reach 18,400 by 2040. The structure is 286 ft (87.1 m) long and 70 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesUS311
CrossesI73 US220
Location0.6 Mi. N. Jct. US220BUS
RouteU.S. Route 311
CountyRandolph County
StateNorth Carolina
Coordinates35.80192, -79.8219
Functional classRural Principal Arterial - Other

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
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 rating65.9 US tons
Inventory rating38.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20 + Mod
Structure length286 ft (87.1 m)
Longest span104 ft (31.6 m)
Deck width70 ft (21.3 m)
Roadway width68 ft (20.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,200 (2022)
Projected traffic18,400 by 2040
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
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 US311 over I73 US220 built?

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

What condition is US311 over I73 US220 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 November 2024.

How much traffic does US311 over I73 US220 carry?

About 9,200 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is US311 over I73 US220?

The structure is 286 ft (87.1 m) long with a longest span of 104 ft (31.6 m) and a deck 70 ft wide.

Who owns US311 over I73 US220?

It is owned by the State Highway Agency.