US Bridges

SR1103 over US421

Fair

Yadkin County, North Carolina · .5 MI.N.JCT.SR1112 · Structure no. 000000001970039

Built
1974
51 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
244 ft
2 main spans
Daily traffic
380
2016 count
Owner
State
State Highway Agency

About this bridge

SR1103 over US421 is a steel continuous stringer/multi-beam or girder carrying SR1103 over US421 in Yadkin County, North Carolina. It was built in 1974, so it is 51 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 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 380 vehicles a day, roughly 6% of them trucks, projected to reach 760 by 2040. The structure is 244 ft (74.3 m) long and 38 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesSR1103
CrossesUS421
Location.5 MI.N.JCT.SR1112
RouteState Highway 1103
CountyYadkin County
StateNorth Carolina
Coordinates36.12403, -80.82071
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.9 US tons
Inventory rating32 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 15
Structure length244 ft (74.3 m)
Longest span94 ft (28.6 m)
Deck width38 ft (11.5 m)
Roadway width36 ft (10.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic380 (2016)
Projected traffic760 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR1103 over US421 built?

It was built in 1974, making it 51 years old in 2025.

What condition is SR1103 over US421 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 June 2023.

How much traffic does SR1103 over US421 carry?

About 380 vehicles per day (2016 count), of which roughly 6% are trucks.

How long is SR1103 over US421?

The structure is 244 ft (74.3 m) long with a longest span of 94 ft (28.6 m) and a deck 38 ft wide.

Who owns SR1103 over US421?

It is owned by the State Highway Agency.