US Bridges

SR2004 over I77

Fair

Mecklenburg County, North Carolina · 0.36 Mi. W. Jct. US21 · Structure no. 000000001190355

Built
1975
50 years old, rebuilt 2013
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
356 ft
2 main spans
Daily traffic
5,400
2018 count
Owner
State
State Highway Agency

About this bridge

SR2004 over I77 is a steel continuous stringer/multi-beam or girder carrying SR2004 over I77 in Mecklenburg County, North Carolina. It was built in 1975 and reconstructed in 2013, 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 6 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 5,400 vehicles a day, roughly 7% of them trucks, projected to reach 10,800 by 2040. The structure is 356 ft (108.5 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSR2004
CrossesI77
Location0.36 Mi. W. Jct. US21
RouteState Highway 2004
CountyMecklenburg County
StateNorth Carolina
Coordinates35.39385, -80.85288
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating42 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20 + Mod
Structure length356 ft (108.5 m)
Longest span134 ft (40.8 m)
Deck width42 ft (12.8 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,400 (2018)
Projected traffic10,800 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 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 SR2004 over I77 built?

It was built in 1975, making it 50 years old in 2025. It was reconstructed in 2013.

What condition is SR2004 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 August 2024.

How much traffic does SR2004 over I77 carry?

About 5,400 vehicles per day (2018 count), of which roughly 7% are trucks.

How long is SR2004 over I77?

The structure is 356 ft (108.5 m) long with a longest span of 134 ft (40.8 m) and a deck 42 ft wide.

Who owns SR2004 over I77?

It is owned by the State Highway Agency.