US Bridges

I-840 Wbl over SR 3300

Good

Guilford County, North Carolina · 1.3 Mi. W. Jct. SR 2523 · Structure no. 000000000811248

Built
2023
2 years old
Condition
Good
inspected May 2023
Type
Slab
Prestressed Concrete
Length
110 ft
1 main span
Daily traffic
32,750
2021 count
Owner
State
State Highway Agency

About this bridge

I-840 Wbl over SR 3300 is a prestressed concrete slab carrying I-840 Wbl over SR 3300 in Guilford County, North Carolina. It was built in 2023, so it is 2 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 32,750 vehicles a day, roughly 16% of them trucks, projected to reach 65,500 by 2040. The structure is 110 ft (33.5 m) long and 70 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI-840 Wbl
CrossesSR 3300
Location1.3 Mi. W. Jct. SR 2523
RouteInterstate 840
CountyGuilford County
StateNorth Carolina
Coordinates36.13906, -79.79744
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionMay 2023
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 rating84 US tons
Inventory rating57 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length110 ft (33.5 m)
Longest span107 ft (32.6 m)
Deck width70 ft (21.2 m)
Roadway width66 ft (20.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32,750 (2021)
Projected traffic65,500 by 2040
Trucks16%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-840 Wbl over SR 3300 built?

It was built in 2023, making it 2 years old in 2025.

What condition is I-840 Wbl over SR 3300 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 2023.

How much traffic does I-840 Wbl over SR 3300 carry?

About 32,750 vehicles per day (2021 count), of which roughly 16% are trucks.

How long is I-840 Wbl over SR 3300?

The structure is 110 ft (33.5 m) long with a longest span of 107 ft (32.6 m) and a deck 70 ft wide.

Who owns I-840 Wbl over SR 3300?

It is owned by the State Highway Agency.