US Bridges

SR1100 over US601 Byp

Fair

Surry County, North Carolina · .2 MI.E.JCT.SR2248 · Structure no. 000000001710041

Built
1968
57 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
212 ft
4 main spans
Daily traffic
2,000
2021 count
Owner
State
State Highway Agency

About this bridge

SR1100 over US601 Byp is a prestressed concrete stringer/multi-beam or girder carrying SR1100 over US601 Byp in Surry County, North Carolina. It was built in 1968, so it is 57 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 5 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 2,000 vehicles a day, roughly 7% of them trucks, projected to reach 4,000 by 2040. The structure is 212 ft (64.6 m) long and 50 ft wide.

Location

Open in Google Maps
CarriesSR1100
CrossesUS601 Byp
Location.2 MI.E.JCT.SR2248
RouteState Highway 1100
CountySurry County
StateNorth Carolina
Coordinates36.39193, -80.70532
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating51.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length212 ft (64.6 m)
Longest span61 ft (18.5 m)
Deck width50 ft (15.2 m)
Roadway width47 ft (14.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (2021)
Projected traffic4,000 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 SR1100 over US601 Byp built?

It was built in 1968, making it 57 years old in 2025.

What condition is SR1100 over US601 Byp 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 December 2023.

How much traffic does SR1100 over US601 Byp carry?

About 2,000 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is SR1100 over US601 Byp?

The structure is 212 ft (64.6 m) long with a longest span of 61 ft (18.5 m) and a deck 50 ft wide.

Who owns SR1100 over US601 Byp?

It is owned by the State Highway Agency.