Structure 1190355 · Mecklenburg County, NC

Sr2004 over I77

Carries Sr2004 over I77, 0.36 Mi. W. Jct. Us21.

Overall conditionFair

Set by its lowest-rated component: Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT356 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

356 ft end to end, longest span 134 ft: about 5 semi-trucks nose to tail. 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.

Built1975rebuilt 2013
Length356.0 ft108.5 m
Daily traffic5,400counted 2018
Last inspectedAugust 2024every 24 months

Location

StateNorth Carolina
CountyMecklenburg
Location0.36 Mi. W. Jct. Us21
CarriesSr2004
CrossesI77
Coordinates35.39385, -80.85288

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length356.0 ft (108.5 m)
Max Span133.9 ft (40.8 m)
Deck Width42.0 ft (12.8 m)
Deck Area1388.8 sq m
Main Spans2
Year Built1975 (reconstructed 2013)

Traffic

Avg Daily Traffic5,400 (2018)
Truck Traffic7%
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 CriticalNot applicable
Structure Number000000001190355

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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