US Bridges

I77 Sbl over I-L Creek

Fair

Iredell County, North Carolina · 1.0 Mi. S. Jct. SR2342 · Structure no. 000000000970122

Built
1968
57 years old
Condition
Fair
inspected March 2024
Type
Culvert
Concrete Continuous
Length
40 ft
3 main spans
Daily traffic
26,750
2020 count
Owner
State
State Highway Agency

About this bridge

I77 Sbl over I-L Creek is a concrete continuous culvert carrying I77 Sbl over I-L Creek in Iredell County, North Carolina. It was built in 1968, so it is 57 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 26,750 vehicles a day, roughly 23% of them trucks, projected to reach 53,500 by 2040. The structure is 40 ft (12.1 m) long. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI77 Sbl
CrossesI-L Creek
Location1.0 Mi. S. Jct. SR2342
RouteInterstate 77
CountyIredell County
StateNorth Carolina
Coordinates35.70977, -80.85605
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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 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 length40 ft (12.1 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,750 (2020)
Projected traffic53,500 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 I77 Sbl over I-L Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is I77 Sbl over I-L 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 March 2024.

How much traffic does I77 Sbl over I-L Creek carry?

About 26,750 vehicles per day (2020 count), of which roughly 23% are trucks.

How long is I77 Sbl over I-L Creek?

The structure is 40 ft (12.1 m) long with a longest span of 9 ft (2.7 m).

Who owns I77 Sbl over I-L Creek?

It is owned by the State Highway Agency.