US Bridges

I-77 Nbl over Ut to South Yadkin Rive

Fair

Iredell County, North Carolina · 1.0 Mi. S. Jct. SR1890 · Structure no. 000000000970196

Built
1973
52 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
19,000
2022 count
Owner
State
State Highway Agency

About this bridge

I-77 Nbl over Ut to South Yadkin Rive is a concrete continuous culvert carrying I-77 Nbl over Ut to South Yadkin Rive 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 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 19,000 vehicles a day, roughly 23% of them trucks, projected to reach 38,000 by 2040. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI-77 Nbl
CrossesUt to South Yadkin Rive
Location1.0 Mi. S. Jct. SR1890
RouteInterstate 77
Coordinates35.90222, -80.85511
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.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 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 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 traffic19,000 (2022)
Projected traffic38,000 by 2040
Trucks23%
Lanes on structure2
Traffic directionOne-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 I-77 Nbl over Ut to South Yadkin Rive built?

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

What condition is I-77 Nbl over Ut to South Yadkin Rive 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 July 2024.

How much traffic does I-77 Nbl over Ut to South Yadkin Rive carry?

About 19,000 vehicles per day (2022 count), of which roughly 23% are trucks.

How long is I-77 Nbl over Ut to South Yadkin Rive?

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

Who owns I-77 Nbl over Ut to South Yadkin Rive?

It is owned by the State Highway Agency.