US Bridges

US74 Byp over SR3909

Good

Union County, North Carolina · 0.3 Mi. W. Jct. Stallings · Structure no. 000000001790540

Built
2018
7 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
132 ft
1 main span
Daily traffic
63,000
2022 count
Owner
State
State Highway Agency

About this bridge

US74 Byp over SR3909 is a prestressed concrete stringer/multi-beam or girder carrying US74 Byp over SR3909 in Union County, North Carolina. It was built in 2018, so it is 7 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 63,000 vehicles a day, roughly 12% of them trucks, projected to reach 126,000 by 2040. The structure is 132 ft (40.2 m) long and 128 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesUS74 Byp
CrossesSR3909
Location0.3 Mi. W. Jct. Stallings
RouteU.S. Route 74
Coordinates35.10133, -80.67935
Functional classUrban Other Principal Arterial

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.
Substructure8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating74 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length132 ft (40.2 m)
Longest span128 ft (39 m)
Deck width128 ft (38.9 m)
Roadway width122 ft (37.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic63,000 (2022)
Projected traffic126,000 by 2040
Trucks12%
Lanes on structure6
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate 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 US74 Byp over SR3909 built?

It was built in 2018, making it 7 years old in 2025.

What condition is US74 Byp over SR3909 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 May 2024.

How much traffic does US74 Byp over SR3909 carry?

About 63,000 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is US74 Byp over SR3909?

The structure is 132 ft (40.2 m) long with a longest span of 128 ft (39 m) and a deck 128 ft wide.

Who owns US74 Byp over SR3909?

It is owned by the State Highway Agency.