US Bridges

SR1345 over I-77

Fair

Surry County, North Carolina · .1 MI.S.JCT.SR1331 · Structure no. 000000001710187

Built
1975
50 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
375 ft
2 main spans
Daily traffic
2,100
2022 count
Owner
State
State Highway Agency

About this bridge

SR1345 over I-77 is a steel continuous stringer/multi-beam or girder carrying SR1345 over I-77 in Surry County, North Carolina. It was built in 1975, so it is 50 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 2,100 vehicles a day, roughly 6% of them trucks, projected to reach 4,200 by 2040. The structure is 375 ft (114.3 m) long and 36 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSR1345
CrossesI-77
Location.1 MI.S.JCT.SR1331
RouteState Highway 1345
CountySurry County
StateNorth Carolina
Coordinates36.46038, -80.76646
Functional classRural Minor 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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74 US tons
Inventory rating44 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20 + Mod
Structure length375 ft (114.3 m)
Longest span121 ft (36.8 m)
Deck width36 ft (10.9 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,100 (2022)
Projected traffic4,200 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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 SR1345 over I-77 built?

It was built in 1975, making it 50 years old in 2025.

What condition is SR1345 over I-77 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 SR1345 over I-77 carry?

About 2,100 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is SR1345 over I-77?

The structure is 375 ft (114.3 m) long with a longest span of 121 ft (36.8 m) and a deck 36 ft wide.

Who owns SR1345 over I-77?

It is owned by the State Highway Agency.