US Bridges

I73S I40E US421S over SR1541

Good

Guilford County, North Carolina · 0.9 Mi. W. Jct. SR4126 · Structure no. 000000000810864

Built
2008
17 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
225 ft
2 main spans
Daily traffic
28,500
2020 count
Owner
State
State Highway Agency

About this bridge

I73S I40E US421S over SR1541 is a steel continuous stringer/multi-beam or girder carrying I73S I40E US421S over SR1541 in Guilford County, North Carolina. It was built in 2008, so it is 17 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 28,500 vehicles a day, roughly 16% of them trucks, projected to reach 57,000 by 2040. The structure is 225 ft (68.5 m) long and 79 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesI73S I40E US421S
CrossesSR1541
Location0.9 Mi. W. Jct. SR4126
RouteInterstate 73
Coordinates36.05031, -79.91575
Functional classUrban Principal Arterial - Interstate

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum 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 rating99 US tons
Inventory rating80.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length225 ft (68.5 m)
Longest span109 ft (33.2 m)
Deck width79 ft (24.1 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,500 (2020)
Projected traffic57,000 by 2040
Trucks16%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I73S I40E US421S over SR1541 built?

It was built in 2008, making it 17 years old in 2025.

What condition is I73S I40E US421S over SR1541 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 February 2024.

How much traffic does I73S I40E US421S over SR1541 carry?

About 28,500 vehicles per day (2020 count), of which roughly 16% are trucks.

How long is I73S I40E US421S over SR1541?

The structure is 225 ft (68.5 m) long with a longest span of 109 ft (33.2 m) and a deck 79 ft wide.

Who owns I73S I40E US421S over SR1541?

It is owned by the State Highway Agency.