US Bridges

SR1166 over South Deep Creek

Fair

Yadkin County, North Carolina · .1 MI.N.JCT.SR1136 · Structure no. 000000001970015

Built
1993
32 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
136 ft
3 main spans
Daily traffic
400
2019 count
Owner
State
State Highway Agency

About this bridge

SR1166 over South Deep Creek is a prestressed concrete stringer/multi-beam or girder carrying SR1166 over South Deep Creek in Yadkin County, North Carolina. It was built in 1993, so it is 32 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 400 vehicles a day, roughly 6% of them trucks, projected to reach 800 by 2040. The structure is 136 ft (41.4 m) long and 33 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesSR1166
CrossesSouth Deep Creek
Location.1 MI.N.JCT.SR1136
RouteState Highway 1166
Coordinates36.09927, -80.70649
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92.9 US tons
Inventory rating40.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length136 ft (41.4 m)
Longest span80 ft (24.3 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2019)
Projected traffic800 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 SR1166 over South Deep Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is SR1166 over South Deep Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.

How much traffic does SR1166 over South Deep Creek carry?

About 400 vehicles per day (2019 count), of which roughly 6% are trucks.

How long is SR1166 over South Deep Creek?

The structure is 136 ft (41.4 m) long with a longest span of 80 ft (24.3 m) and a deck 33 ft wide.

Who owns SR1166 over South Deep Creek?

It is owned by the State Highway Agency.