US Bridges

SR4121W over Bull Run Creek

Good

Guilford County, North Carolina · 0.5 MI E JCT SR1352 · Structure no. 000000000811275

Built
2023
2 years old
Condition
Good
inspected March 2023
Type
Slab
Prestressed Concrete
Length
305 ft
3 main spans
Daily traffic
7,000
2017 count
Owner
State
State Highway Agency

About this bridge

SR4121W over Bull Run Creek is a prestressed concrete slab carrying SR4121W over Bull Run Creek 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 7,000 vehicles a day, roughly 12% of them trucks, projected to reach 14,000 by 2040. The structure is 305 ft (92.9 m) long and 44 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSR4121W
CrossesBull Run Creek
Location0.5 MI E JCT SR1352
RouteState Highway 4121
CountyGuilford County
StateNorth Carolina
Coordinates35.9877, -79.9265
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
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88 US tons
Inventory rating62.9 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length305 ft (92.9 m)
Longest span113 ft (34.4 m)
Deck width44 ft (13.5 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,000 (2017)
Projected traffic14,000 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 SystemNo

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 SR4121W over Bull Run Creek built?

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

What condition is SR4121W over Bull Run 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 March 2023.

How much traffic does SR4121W over Bull Run Creek carry?

About 7,000 vehicles per day (2017 count), of which roughly 12% are trucks.

How long is SR4121W over Bull Run Creek?

The structure is 305 ft (92.9 m) long with a longest span of 113 ft (34.4 m) and a deck 44 ft wide.

Who owns SR4121W over Bull Run Creek?

It is owned by the State Highway Agency.