US Bridges

SR2147 over I77

Fair

Mecklenburg County, North Carolina · 0.3 Mi. W. Jct. US21 · Structure no. 000000001190362

Built
1976
49 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
302 ft
4 main spans
Daily traffic
12,000
2018 count
Owner
State
State Highway Agency

About this bridge

SR2147 over I77 is a steel stringer/multi-beam or girder carrying SR2147 over I77 in Mecklenburg County, North Carolina. It was built in 1976, so it is 49 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 12,000 vehicles a day, roughly 7% of them trucks, projected to reach 24,000 by 2040. The structure is 302 ft (92 m) long and 38 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesSR2147
CrossesI77
Location0.3 Mi. W. Jct. US21
RouteState Highway 2147
CountyMecklenburg County
StateNorth Carolina
Coordinates35.46384, -80.87542
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.9 US tons
Inventory rating31 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length302 ft (92 m)
Longest span119 ft (36.2 m)
Deck width38 ft (11.5 m)
Roadway width36 ft (10.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,000 (2018)
Projected traffic24,000 by 2040
Trucks7%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR2147 over I77 built?

It was built in 1976, making it 49 years old in 2025.

What condition is SR2147 over I77 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 May 2023.

How much traffic does SR2147 over I77 carry?

About 12,000 vehicles per day (2018 count), of which roughly 7% are trucks.

How long is SR2147 over I77?

The structure is 302 ft (92 m) long with a longest span of 119 ft (36.2 m) and a deck 38 ft wide.

Who owns SR2147 over I77?

It is owned by the State Highway Agency.