Structure 230081 · Burke County, NC

Us64 Wbl Nc18 over Catawba River

Carries Us64 Wbl Nc18 over Catawba River, 0.1 Mi.w.jct.sr1593.

Overall conditionFair

Set by its lowest-rated component: Superstructure and Substructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT450 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 5/9 · sets the rating

450 ft end to end, longest span 73 ft: about 6 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.

Built196660 years old
Length449.8 ft137.1 m
Daily traffic6,500counted 2022
Last inspectedDecember 2023every 24 months

Location

StateNorth Carolina
CountyBurke
Location0.1 Mi.w.jct.sr1593
CarriesUs64 Wbl Nc18
CrossesCatawba River
Coordinates35.77249, -81.69024

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length449.8 ft (137.1 m)
Max Span72.8 ft (22.2 m)
Deck Width33.8 ft (10.3 m)
Deck Area1412.1 sq m
Main Spans6
Year Built1966

Traffic

Avg Daily Traffic6,500 (2022)
Truck Traffic12%
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000230081

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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