US Bridges

SR4000 over Monarcas Creek

Good

Forsyth County, North Carolina · 0.1 Mi. S. Jct. SR3973 · Structure no. 000000000670415

Built
1972
53 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete Continuous
Length
22 ft
3 main spans
Daily traffic
13,500
2021 count
Owner
State
State Highway Agency

About this bridge

SR4000 over Monarcas Creek is a concrete continuous culvert carrying SR4000 over Monarcas Creek in Forsyth County, North Carolina. It was built in 1972, so it is 53 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 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 13,500 vehicles a day, roughly 12% of them trucks, projected to reach 27,000 by 2040. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSR4000
CrossesMonarcas Creek
Location0.1 Mi. S. Jct. SR3973
RouteState Highway 4000
Coordinates36.15008, -80.27916
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: 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 typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length22 ft (6.7 m)
Longest span7 ft (2.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,500 (2021)
Projected traffic27,000 by 2040
Trucks12%
Lanes on structure4
Traffic directionTwo-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 SR4000 over Monarcas Creek built?

It was built in 1972, making it 53 years old in 2025.

What condition is SR4000 over Monarcas 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 October 2023.

How much traffic does SR4000 over Monarcas Creek carry?

About 13,500 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is SR4000 over Monarcas Creek?

The structure is 22 ft (6.7 m) long with a longest span of 7 ft (2.1 m).

Who owns SR4000 over Monarcas Creek?

It is owned by the State Highway Agency.