US Bridges

SR1131 over I-77

Fair

Surry County, North Carolina · .03 MI.W.JCT.SR1197 · Structure no. 000000001710120

Built
1974
51 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
356 ft
2 main spans
Daily traffic
100
2018 count
Owner
State
State Highway Agency

About this bridge

SR1131 over I-77 is a steel continuous stringer/multi-beam or girder carrying SR1131 over I-77 in Surry 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 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 100 vehicles a day, projected to reach 200 by 2040. The structure is 356 ft (108.5 m) long and 32 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesSR1131
CrossesI-77
Location.03 MI.W.JCT.SR1197
RouteState Highway 1131
CountySurry County
StateNorth Carolina
Coordinates36.3013, -80.80904
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.
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 geometry7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48 US tons
Inventory rating28 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadH 15
Structure length356 ft (108.5 m)
Longest span118 ft (35.9 m)
Deck width32 ft (9.7 m)
Roadway width29 ft (8.9 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
CrossesHighway
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR1131 over I-77 built?

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

What condition is SR1131 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 SR1131 over I-77 carry?

About 100 vehicles per day (2018 count).

How long is SR1131 over I-77?

The structure is 356 ft (108.5 m) long with a longest span of 118 ft (35.9 m) and a deck 32 ft wide.

Who owns SR1131 over I-77?

It is owned by the State Highway Agency.