Structure 230084 · Burke County, NC

Us70 over Silver Creek

Carries Us70 over Silver Creek, .1 Mi.w.jct.us70byp..

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
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT298 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

298 ft end to end, longest span 41 ft: about 4 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 tee-beam bridge.

Built1931rebuilt 1971
Length297.9 ft90.8 m
Daily traffic14,500counted 2022
Last inspectedJanuary 2024every 24 months

Location

StateNorth Carolina
CountyBurke
Location.1 Mi.w.jct.us70byp.
CarriesUs70
CrossesSilver Creek
Coordinates35.73593, -81.71238

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length297.9 ft (90.8 m)
Max Span40.7 ft (12.4 m)
Deck Width76.1 ft (23.2 m)
Deck Area2106.6 sq m
Main Spans7
Year Built1931 (reconstructed 1971)

Traffic

Avg Daily Traffic14,500 (2022)
Truck Traffic6%
Lanes On Bridge5

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000230084

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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