US Bridges

SR1639 over West Fork Muddy Creek

Good

Forsyth County, North Carolina · 0.1 Mi. W. Jct. SR1893 · Structure no. 000000000670142

Built
2017
8 years old
Condition
Good
inspected December 2021
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
87 ft
1 main span
Daily traffic
1,300
2019 count
Owner
State
State Highway Agency

About this bridge

SR1639 over West Fork Muddy Creek is a prestressed concrete box beam or girders - multiple carrying SR1639 over West Fork Muddy Creek in Forsyth County, North Carolina. It was built in 2017, so it is 8 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 1,300 vehicles a day, roughly 7% of them trucks, projected to reach 2,600 by 2040. The structure is 87 ft (26.5 m) long and 30 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesSR1639
CrossesWest Fork Muddy Creek
Location0.1 Mi. W. Jct. SR1893
RouteState Highway 1639
Coordinates36.2575, -80.32368
Functional classUrban Local

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.9 US tons
Inventory rating66.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length87 ft (26.5 m)
Longest span84 ft (25.6 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2019)
Projected traffic2,600 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR1639 over West Fork Muddy Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is SR1639 over West Fork Muddy 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 December 2021.

How much traffic does SR1639 over West Fork Muddy Creek carry?

About 1,300 vehicles per day (2019 count), of which roughly 7% are trucks.

How long is SR1639 over West Fork Muddy Creek?

The structure is 87 ft (26.5 m) long with a longest span of 84 ft (25.6 m) and a deck 30 ft wide.

Who owns SR1639 over West Fork Muddy Creek?

It is owned by the State Highway Agency.