US Bridges

I-73S over Haw River

Good

Guilford County, North Carolina · 1.25 MI S JCT US158 · Structure no. 000000000810852

Built
2019
6 years old
Condition
Good
inspected November 2023
Type
Slab
Prestressed Concrete
Length
299 ft
4 main spans
Daily traffic
14,500
2019 count
Owner
State
State Highway Agency

About this bridge

I-73S over Haw River is a prestressed concrete slab carrying I-73S over Haw River in Guilford County, North Carolina. It was built in 2019, so it is 6 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 14,500 vehicles a day, projected to reach 29,000 by 2040. The structure is 299 ft (91.1 m) long and 44 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesI-73S
CrossesHaw River
Location1.25 MI S JCT US158
RouteInterstate 73
CountyGuilford County
StateNorth Carolina
Coordinates36.2285, -79.91431
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46 US tons
Inventory rating35.9 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 10
Structure length299 ft (91.1 m)
Longest span93 ft (28.3 m)
Deck width44 ft (13.5 m)
Roadway width41 ft (12.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,500 (2019)
Projected traffic29,000 by 2040
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-73S over Haw River built?

It was built in 2019, making it 6 years old in 2025.

What condition is I-73S over Haw River 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 2023.

How much traffic does I-73S over Haw River carry?

About 14,500 vehicles per day (2019 count).

How long is I-73S over Haw River?

The structure is 299 ft (91.1 m) long with a longest span of 93 ft (28.3 m) and a deck 44 ft wide.

Who owns I-73S over Haw River?

It is owned by the State Highway Agency.