US Bridges

I73N I74W US220N over US220A

Good

Montgomery County, North Carolina · 0.8 Mi. S. Jct. SR1348 · Structure no. 000000001230244

Built
1994
31 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
210 ft
3 main spans
Daily traffic
7,500
2020 count
Owner
State
State Highway Agency

About this bridge

I73N I74W US220N over US220A is a steel stringer/multi-beam or girder carrying I73N I74W US220N over US220A in Montgomery County, North Carolina. It was built in 1994, so it is 31 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 7,500 vehicles a day, roughly 23% of them trucks, projected to reach 15,000 by 2040. The structure is 210 ft (64 m) long and 41 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI73N I74W US220N
CrossesUS220A
Location0.8 Mi. S. Jct. SR1348
RouteInterstate 73
Coordinates35.45201, -79.78059
Functional classRural Principal Arterial - Interstate

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88 US tons
Inventory rating52.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length210 ft (64 m)
Longest span102 ft (31 m)
Deck width41 ft (12.4 m)
Roadway width37 ft (11.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,500 (2020)
Projected traffic15,000 by 2040
Trucks23%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I73N I74W US220N over US220A built?

It was built in 1994, making it 31 years old in 2025.

What condition is I73N I74W US220N over US220A 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 May 2024.

How much traffic does I73N I74W US220N over US220A carry?

About 7,500 vehicles per day (2020 count), of which roughly 23% are trucks.

How long is I73N I74W US220N over US220A?

The structure is 210 ft (64 m) long with a longest span of 102 ft (31 m) and a deck 41 ft wide.

Who owns I73N I74W US220N over US220A?

It is owned by the State Highway Agency.