US Bridges

SR1970 over Southern Railway

Fair

Guilford County, North Carolina · 0.4 Mi. W. Jct. US311 · Structure no. 000000000810012

Built
1973
52 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
424 ft
3 main spans
Daily traffic
10,500
2021 count
Owner
State
State Highway Agency

About this bridge

SR1970 over Southern Railway is a steel continuous stringer/multi-beam or girder carrying SR1970 over Southern Railway in Guilford County, North Carolina. It was built in 1973, so it is 52 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 10,500 vehicles a day, roughly 12% of them trucks, projected to reach 21,000 by 2040. The structure is 424 ft (129.2 m) long and 71 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSR1970
CrossesSouthern Railway
Location0.4 Mi. W. Jct. US311
RouteState Highway 1970
CountyGuilford County
StateNorth Carolina
Coordinates35.96036, -79.99866
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73 US tons
Inventory rating44 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+2 approach)
Design loadHS 20 + Mod
Structure length424 ft (129.2 m)
Longest span122 ft (37.1 m)
Deck width71 ft (21.6 m)
Roadway width62 ft (18.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,500 (2021)
Projected traffic21,000 by 2040
Trucks12%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed3.7 mi (6 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR1970 over Southern Railway built?

It was built in 1973, making it 52 years old in 2025.

What condition is SR1970 over Southern Railway 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 September 2024.

How much traffic does SR1970 over Southern Railway carry?

About 10,500 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is SR1970 over Southern Railway?

The structure is 424 ft (129.2 m) long with a longest span of 122 ft (37.1 m) and a deck 71 ft wide.

Who owns SR1970 over Southern Railway?

It is owned by the State Highway Agency.