US Bridges

Broad Street over US421

Good

Forsyth County, North Carolina · 0.6 Mi. S. JCT NC67 · Structure no. 000000000670178

Built
2019
6 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
129 ft
1 main span
Daily traffic
14,000
2017 count
Owner
State
State Highway Agency

About this bridge

Broad Street over US421 is a prestressed concrete stringer/multi-beam or girder carrying Broad Street over US421 in Forsyth County, North Carolina. It was built in 2019, so it is 6 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 14,000 vehicles a day, roughly 7% of them trucks, projected to reach 28,000 by 2040. The structure is 129 ft (39.3 m) long and 66 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesBroad Street
CrossesUS421
Location0.6 Mi. S. JCT NC67
RouteCity Street 0
Coordinates36.09182, -80.25174
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation9: Superior to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95.9 US tons
Inventory rating72 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length129 ft (39.3 m)
Longest span126 ft (38.4 m)
Deck width66 ft (20.2 m)
Roadway width47 ft (14.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,000 (2017)
Projected traffic28,000 by 2040
Trucks7%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Broad Street over US421 built?

It was built in 2019, making it 6 years old in 2025.

What condition is Broad Street over US421 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 July 2023.

How much traffic does Broad Street over US421 carry?

About 14,000 vehicles per day (2017 count), of which roughly 7% are trucks.

How long is Broad Street over US421?

The structure is 129 ft (39.3 m) long with a longest span of 126 ft (38.4 m) and a deck 66 ft wide.

Who owns Broad Street over US421?

It is owned by the State Highway Agency.