US Bridges

SR1103 over Silvermine Creek

Good

Swain County, North Carolina · .15 MI.N.JCT.SR1104 · Structure no. 000000001730149

Built
1965
60 years old, rebuilt 2023
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
26 ft
1 main span
Daily traffic
100
2018 count
Owner
State
State Highway Agency

About this bridge

SR1103 over Silvermine Creek is a steel stringer/multi-beam or girder carrying SR1103 over Silvermine Creek in Swain County, North Carolina. It was built in 1965 and reconstructed in 2023, so it is 60 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 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 100 vehicles a day, projected to reach 200 by 2040. The structure is 26 ft (7.9 m) long and 25 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesSR1103
CrossesSilvermine Creek
Location.15 MI.N.JCT.SR1104
RouteState Highway 1103
Coordinates35.31424, -83.61591
Functional classRural 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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating68.9 US tons
Inventory rating40.9 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span23 ft (7 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2018)
Projected traffic200 by 2040
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 SR1103 over Silvermine Creek built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 2023.

What condition is SR1103 over Silvermine 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 November 2023.

How much traffic does SR1103 over Silvermine Creek carry?

About 100 vehicles per day (2018 count).

How long is SR1103 over Silvermine Creek?

The structure is 26 ft (7.9 m) long with a longest span of 23 ft (7 m) and a deck 25 ft wide.

Who owns SR1103 over Silvermine Creek?

It is owned by the State Highway Agency.