US Bridges

I-77 over Little Fisher River

Fair

Surry County, North Carolina · .3 MI.N.JCT.NC89 · Structure no. 000000001710207

Built
1975
50 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete Continuous
Length
44 ft
3 main spans
Daily traffic
21,500
2020 count
Owner
State
State Highway Agency

About this bridge

I-77 over Little Fisher River is a concrete continuous culvert carrying I-77 over Little Fisher River in Surry County, North Carolina. It was built in 1975, so it is 50 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 21,500 vehicles a day, roughly 23% of them trucks, projected to reach 43,000 by 2040. The structure is 44 ft (13.4 m) long. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI-77
CrossesLittle Fisher River
Location.3 MI.N.JCT.NC89
RouteInterstate 77
Coordinates36.48737, -80.74901
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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42 US tons
Inventory rating32 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length44 ft (13.4 m)
Longest span12 ft (3.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,500 (2020)
Projected traffic43,000 by 2040
Trucks23%
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 I-77 over Little Fisher River built?

It was built in 1975, making it 50 years old in 2025.

What condition is I-77 over Little Fisher River 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 November 2023.

How much traffic does I-77 over Little Fisher River carry?

About 21,500 vehicles per day (2020 count), of which roughly 23% are trucks.

How long is I-77 over Little Fisher River?

The structure is 44 ft (13.4 m) long with a longest span of 12 ft (3.6 m).

Who owns I-77 over Little Fisher River?

It is owned by the State Highway Agency.