US Bridges

NC104 over Johnson Creek

Good

Surry County, North Carolina · 0.1 MI.E.JCT.SR1722 · Structure no. 000000001710034

Built
2017
8 years old
Condition
Good
inspected January 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
130 ft
1 main span
Daily traffic
2,900
2021 count
Owner
State
State Highway Agency

About this bridge

NC104 over Johnson Creek is a prestressed concrete box beam or girders - multiple carrying NC104 over Johnson Creek in Surry County, North Carolina. It was built in 2017, so it is 8 years old, younger than the North Carolina average of 38.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,900 vehicles a day, roughly 7% of them trucks, projected to reach 5,800 by 2040. The structure is 130 ft (39.6 m) long and 36 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesNC104
CrossesJohnson Creek
Location0.1 MI.E.JCT.SR1722
RouteState Highway 104
Coordinates36.5363, -80.58126
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 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 evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating47 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1 (+1 approach)
Design loadHL 93
Structure length130 ft (39.6 m)
Longest span93 ft (28.3 m)
Deck width36 ft (10.9 m)
Roadway width33 ft (10 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,900 (2021)
Projected traffic5,800 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was NC104 over Johnson Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is NC104 over Johnson Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2024.

How much traffic does NC104 over Johnson Creek carry?

About 2,900 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is NC104 over Johnson Creek?

The structure is 130 ft (39.6 m) long with a longest span of 93 ft (28.3 m) and a deck 36 ft wide.

Who owns NC104 over Johnson Creek?

It is owned by the State Highway Agency.