US Bridges

NC24 NC27 over I73 I74 US220

Fair

Montgomery County, North Carolina · 0.18 Mi. E. Jct. SR1577 · Structure no. 000000001230035

Built
1977
48 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
272 ft
4 main spans
Daily traffic
12,500
2022 count
Owner
State
State Highway Agency

About this bridge

NC24 NC27 over I73 I74 US220 is a steel stringer/multi-beam or girder carrying NC24 NC27 over I73 I74 US220 in Montgomery County, North Carolina. It was built in 1977, so it is 48 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 6 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 12,500 vehicles a day, roughly 8% of them trucks, projected to reach 25,000 by 2040. The structure is 272 ft (82.9 m) long and 71 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesNC24 NC27
CrossesI73 I74 US220
Location0.18 Mi. E. Jct. SR1577
RouteState Highway 24
Coordinates35.36103, -79.76534
Functional classRural Minor Arterial

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98 US tons
Inventory rating59 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length272 ft (82.9 m)
Longest span97 ft (29.5 m)
Deck width71 ft (21.5 m)
Roadway width68 ft (20.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,500 (2022)
Projected traffic25,000 by 2040
Trucks8%
Lanes on structure4
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 NC24 NC27 over I73 I74 US220 built?

It was built in 1977, making it 48 years old in 2025.

What condition is NC24 NC27 over I73 I74 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 December 2023.

How much traffic does NC24 NC27 over I73 I74 US220 carry?

About 12,500 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is NC24 NC27 over I73 I74 US220?

The structure is 272 ft (82.9 m) long with a longest span of 97 ft (29.5 m) and a deck 71 ft wide.

Who owns NC24 NC27 over I73 I74 US220?

It is owned by the State Highway Agency.