US Bridges

I77 over Fifth Creek

Fair

Iredell County, North Carolina · 0.2 Mi. N. Jct. US21 · Structure no. 000000000970184

Built
1973
52 years old
Condition
Fair
inspected June 2024
Type
Culvert
Concrete Continuous
Length
36 ft
3 main spans
Daily traffic
38,500
2020 count
Owner
State
State Highway Agency

About this bridge

I77 over Fifth Creek is a concrete continuous culvert carrying I77 over Fifth Creek in Iredell County, North Carolina. It was built in 1973, so it is 52 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 38,500 vehicles a day, roughly 23% of them trucks, projected to reach 77,000 by 2040. The structure is 36 ft (10.9 m) long. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI77
CrossesFifth Creek
Location0.2 Mi. N. Jct. US21
RouteInterstate 77
Coordinates35.85133, -80.85939
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to 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 spans3
Design loadHS 20 + Mod
Structure length36 ft (10.9 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic38,500 (2020)
Projected traffic77,000 by 2040
Trucks23%
Lanes on structure6
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 I77 over Fifth Creek built?

It was built in 1973, making it 52 years old in 2025.

What condition is I77 over Fifth 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 June 2024.

How much traffic does I77 over Fifth Creek carry?

About 38,500 vehicles per day (2020 count), of which roughly 23% are trucks.

How long is I77 over Fifth Creek?

The structure is 36 ft (10.9 m) long with a longest span of 10 ft (3 m).

Who owns I77 over Fifth Creek?

It is owned by the State Highway Agency.