Structure 1190664 · Mecklenburg County, NC

I77 Ramp over I77 I485 & Sugar

Carries I77 Ramp over I77 I485 & Sugar, 0.8 Mi. N. Jct. Sr1126.

Overall conditionFair

Set by its lowest-rated component: Deck at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,747 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 7/9

1,747 ft end to end, longest span 190 ft: about 4.9 football fields. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built199432 years old
Length1746.7 ft532.4 m
Daily traffic22,500counted 2022
Last inspectedAugust 2024every 24 months

Location

StateNorth Carolina
CountyMecklenburg
Location0.8 Mi. N. Jct. Sr1126
CarriesI77 Ramp
CrossesI77 I485 & Sugar
Coordinates35.12569, -80.91755

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1746.7 ft (532.4 m)
Max Span190.0 ft (57.9 m)
Deck Width44.9 ft (13.7 m)
Deck Area7293.9 sq m
Main Spans10
Year Built1994

Traffic

Avg Daily Traffic22,500 (2022)
Truck Traffic16%
Lanes On Bridge2
Lanes Under Bridge9

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000001190664

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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