US Bridges

I40 Bus over Lowery Street

Fair

Forsyth County, North Carolina · 0.8 Mi. E. Jct. SR4325 · Structure no. 000000000670355

Built
1958
67 years old, rebuilt 1989
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
149 ft
3 main spans
Daily traffic
74,500
2022 count
Owner
State
State Highway Agency

About this bridge

I40 Bus over Lowery Street is a steel stringer/multi-beam or girder carrying I40 Bus over Lowery Street in Forsyth County, North Carolina. It was built in 1958 and reconstructed in 1989, so it is 67 years old, older than the North Carolina average of 38.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 74,500 vehicles a day, roughly 12% of them trucks, projected to reach 149,000 by 2040. The structure is 149 ft (45.4 m) long and 90 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesI40 Bus
CrossesLowery Street
Location0.8 Mi. E. Jct. SR4325
RouteInterstate 40
Coordinates36.09594, -80.21457
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74 US tons
Inventory rating44 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length149 ft (45.4 m)
Longest span51 ft (15.5 m)
Deck width90 ft (27.5 m)
Roadway width83 ft (25.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic74,500 (2022)
Projected traffic149,000 by 2040
Trucks12%
Lanes on structure5
Traffic directionTwo-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 I40 Bus over Lowery Street built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1989.

What condition is I40 Bus over Lowery Street in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2023.

How much traffic does I40 Bus over Lowery Street carry?

About 74,500 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is I40 Bus over Lowery Street?

The structure is 149 ft (45.4 m) long with a longest span of 51 ft (15.5 m) and a deck 90 ft wide.

Who owns I40 Bus over Lowery Street?

It is owned by the State Highway Agency.