US Bridges

I73/74 US220 over Cabin Creek

Fair

Montgomery County, North Carolina · 2.5 MI.S.JCT.NC24&NC27 · Structure no. 000000001230019

Built
1979
46 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
15,500
2020 count
Owner
State
State Highway Agency

About this bridge

I73/74 US220 over Cabin Creek is a concrete continuous culvert carrying I73/74 US220 over Cabin Creek in Montgomery County, North Carolina. It was built in 1979, so it is 46 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 15,500 vehicles a day, roughly 23% of them trucks, projected to reach 31,000 by 2040. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesI73/74 US220
CrossesCabin Creek
Location2.5 MI.S.JCT.NC24&NC27
RouteInterstate 73
CountyMontgomery County
StateNorth Carolina
Coordinates35.32948, -79.74592
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46 US tons
Inventory rating35.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length21 ft (6.4 m)
Longest span7 ft (2.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,500 (2020)
Projected traffic31,000 by 2040
Trucks23%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I73/74 US220 over Cabin Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is I73/74 US220 over Cabin Creek 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 I73/74 US220 over Cabin Creek carry?

About 15,500 vehicles per day (2020 count), of which roughly 23% are trucks.

How long is I73/74 US220 over Cabin Creek?

The structure is 21 ft (6.4 m) long with a longest span of 7 ft (2.1 m).

Who owns I73/74 US220 over Cabin Creek?

It is owned by the State Highway Agency.