US Bridges

I77 over Cornelius Creek

Fair

Iredell County, North Carolina · 2.8 Mi. N. Jct. NC150 · Structure no. 000000000970537

Built
1966
59 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete Continuous
Length
28 ft
2 main spans
Daily traffic
54,000
2020 count
Owner
State
State Highway Agency

About this bridge

I77 over Cornelius Creek is a concrete continuous culvert carrying I77 over Cornelius Creek in Iredell County, North Carolina. It was built in 1966, so it is 59 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 54,000 vehicles a day, roughly 16% of them trucks, projected to reach 108,000 by 2040. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI77
CrossesCornelius Creek
Location2.8 Mi. N. Jct. NC150
RouteInterstate 77
Coordinates35.62909, -80.86233
Functional classUrban 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.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length28 ft (8.5 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic54,000 (2020)
Projected traffic108,000 by 2040
Trucks16%
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 I77 over Cornelius Creek built?

It was built in 1966, making it 59 years old in 2025.

What condition is I77 over Cornelius 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 January 2024.

How much traffic does I77 over Cornelius Creek carry?

About 54,000 vehicles per day (2020 count), of which roughly 16% are trucks.

How long is I77 over Cornelius Creek?

The structure is 28 ft (8.5 m) long with a longest span of 8 ft (2.4 m).

Who owns I77 over Cornelius Creek?

It is owned by the State Highway Agency.