US Bridges

I77 Sbl over N. Little Hunting Crk.

Fair

Yadkin County, North Carolina · 2.0 MI.S.JCT.US421 · Structure no. 000000001970014

Built
1973
52 years old, rebuilt 2013
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
219 ft
3 main spans
Daily traffic
13,750
2020 count
Owner
State
State Highway Agency

About this bridge

I77 Sbl over N. Little Hunting Crk. is a prestressed concrete stringer/multi-beam or girder carrying I77 Sbl over N. Little Hunting Crk. in Yadkin County, North Carolina. It was built in 1973 and reconstructed in 2013, 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 13,750 vehicles a day, roughly 23% of them trucks, projected to reach 27,500 by 2040. The structure is 219 ft (66.7 m) long and 43 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI77 Sbl
CrossesN. Little Hunting Crk.
Location2.0 MI.S.JCT.US421
RouteInterstate 77
CountyYadkin County
StateNorth Carolina
Coordinates36.08926, -80.81429
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating44 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length219 ft (66.7 m)
Longest span71 ft (21.6 m)
Deck width43 ft (13 m)
Roadway width38 ft (11.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,750 (2020)
Projected traffic27,500 by 2040
Trucks23%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
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 N. Little Hunting Crk. built?

It was built in 1973, making it 52 years old in 2025. It was reconstructed in 2013.

What condition is I77 Sbl over N. Little Hunting Crk. 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 2023.

How much traffic does I77 Sbl over N. Little Hunting Crk. carry?

About 13,750 vehicles per day (2020 count), of which roughly 23% are trucks.

How long is I77 Sbl over N. Little Hunting Crk.?

The structure is 219 ft (66.7 m) long with a longest span of 71 ft (21.6 m) and a deck 43 ft wide.

Who owns I77 Sbl over N. Little Hunting Crk.?

It is owned by the State Highway Agency.