US Bridges

I-74S over Mile Branch

Good

Guilford County, North Carolina · 1.0 MI W JCT I-85S · Structure no. 000000000810979

Built
2023
2 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete Continuous
Length
38 ft
3 main spans
Daily traffic
24,500
2020 count
Owner
State
State Highway Agency

About this bridge

I-74S over Mile Branch is a concrete continuous culvert carrying I-74S over Mile Branch 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 24,500 vehicles a day, roughly 16% of them trucks, projected to reach 49,000 by 2040. The structure is 38 ft (11.5 m) long. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesI-74S
CrossesMile Branch
Location1.0 MI W JCT I-85S
RouteInterstate 74
CountyGuilford County
StateNorth Carolina
Coordinates35.93669, -79.94281
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.9 US tons
Inventory rating30 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length38 ft (11.5 m)
Longest span11 ft (3.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,500 (2020)
Projected traffic49,000 by 2040
Trucks16%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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-74S over Mile Branch built?

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

What condition is I-74S over Mile Branch 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 August 2023.

How much traffic does I-74S over Mile Branch carry?

About 24,500 vehicles per day (2020 count), of which roughly 16% are trucks.

How long is I-74S over Mile Branch?

The structure is 38 ft (11.5 m) long with a longest span of 11 ft (3.3 m).

Who owns I-74S over Mile Branch?

It is owned by the State Highway Agency.