US Bridges

US401 Sbl over Middle Creek

Good

Wake County, North Carolina · 0.3 MI.S.JCT.SR2724 · Structure no. 000000001830063

Built
2008
17 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
171 ft
3 main spans
Daily traffic
14,250
2022 count
Owner
State
State Highway Agency

About this bridge

US401 Sbl over Middle Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying US401 Sbl over Middle Creek in Wake 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 14,250 vehicles a day, roughly 12% of them trucks, projected to reach 28,500 by 2040. The structure is 171 ft (52.1 m) long and 59 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS401 Sbl
CrossesMiddle Creek
Location0.3 MI.S.JCT.SR2724
RouteU.S. Route 401
Coordinates35.63212, -78.71586
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating70 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length171 ft (52.1 m)
Longest span55 ft (16.7 m)
Deck width59 ft (18 m)
Roadway width55 ft (16.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,250 (2022)
Projected traffic28,500 by 2040
Trucks12%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US401 Sbl over Middle Creek built?

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

What condition is US401 Sbl over Middle Creek 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 November 2024.

How much traffic does US401 Sbl over Middle Creek carry?

About 14,250 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is US401 Sbl over Middle Creek?

The structure is 171 ft (52.1 m) long with a longest span of 55 ft (16.7 m) and a deck 59 ft wide.

Who owns US401 Sbl over Middle Creek?

It is owned by the State Highway Agency.