Structure 710095 · Gaston County, NC

Closed (was Us321) over South Fork Catawba River

Carries Closed (was Us321) over South Fork Catawba River, 6.2mi.n.jct.nc275.

Overall conditionPoor

Set by its lowest-rated component: Deck and Superstructure at 4 of 9.

How ratings work
Decksets the rating4/9 · Poor
Superstructuresets the rating4/9 · Poor
Substructure6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT514 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 4/9 · sets the ratingSubstructure 6/9

514 ft end to end, longest span 152 ft: about 7 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 through truss.

Built193195 years old
Length513.8 ft156.6 m
Daily traffic6,900counted 1991
Last inspectedAugust 2022every 24 months

Location

StateNorth Carolina
CountyGaston
Location6.2mi.n.jct.nc275
CarriesClosed (was Us321)
CrossesSouth Fork Catawba River
Coordinates35.39738, -81.20360

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length513.8 ft (156.6 m)
Max Span151.9 ft (46.3 m)
Deck Width28.5 ft (8.7 m)
Deck Area1362.4 sq m
Main Spans2
Year Built1931

Traffic

Avg Daily Traffic6,900 (1991)
Truck Traffic7%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2022
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalUnknown
Structure Number000000000710095

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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