US Bridges

US220ALT over I73 I74 US220

Good

Montgomery County, North Carolina · 0.7 Mi. S. Jct. SR1608 · Structure no. 000000001230254

Built
2006
19 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
275 ft
2 main spans
Daily traffic
2,200
2022 count
Owner
State
State Highway Agency

About this bridge

US220ALT over I73 I74 US220 is a steel stringer/multi-beam or girder carrying US220ALT over I73 I74 US220 in Montgomery County, North Carolina. It was built in 2006, so it is 19 years old, younger than the North Carolina average of 38.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,200 vehicles a day, roughly 7% of them trucks, projected to reach 4,400 by 2040. The structure is 275 ft (83.8 m) long and 58 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS220ALT
CrossesI73 I74 US220
Location0.7 Mi. S. Jct. SR1608
RouteU.S. Route 220
Coordinates35.25347, -79.72964
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating68.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length275 ft (83.8 m)
Longest span138 ft (42 m)
Deck width58 ft (17.7 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,200 (2022)
Projected traffic4,400 by 2040
Trucks7%
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 US220ALT over I73 I74 US220 built?

It was built in 2006, making it 19 years old in 2025.

What condition is US220ALT over I73 I74 US220 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2023.

How much traffic does US220ALT over I73 I74 US220 carry?

About 2,200 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is US220ALT over I73 I74 US220?

The structure is 275 ft (83.8 m) long with a longest span of 138 ft (42 m) and a deck 58 ft wide.

Who owns US220ALT over I73 I74 US220?

It is owned by the State Highway Agency.