Structure 230360 · Burke County, NC

Sr1304 over Catawba River

Carries Sr1304 over Catawba River, 0.4 Mi.n.jct.us70.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructure7/9 · Good
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 FT350 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 7/9Substructure 5/9 · sets the rating

350 ft end to end, longest span 92 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.

Built197452 years old
Length349.7 ft106.6 m
Daily traffic13,500counted 2021
Last inspectedNovember 2023every 24 months

Location

StateNorth Carolina
CountyBurke
Location0.4 Mi.n.jct.us70
CarriesSr1304
CrossesCatawba River
Coordinates35.73993, -81.72442

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length349.7 ft (106.6 m)
Max Span91.9 ft (28 m)
Deck Width46.3 ft (14.1 m)
Deck Area1503.1 sq m
Main Spans3
Year Built1974

Traffic

Avg Daily Traffic13,500 (2021)
Truck Traffic6%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000000230360

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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