Structure 811272 · Guilford County, NC

Sr4121 over Deep River

Carries Sr4121 over Deep River, 0.25 Mi.w.jct. Oakdale RD.

Overall conditionGood

Set by its lowest-rated component: Deck at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructure9/9 · Excellent
Substructure9/9 · Excellent
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT400 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9 · sets the ratingSuperstructure 9/9Substructure 9/9

400 ft end to end, longest span 153 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.

Built20224 years old
Length399.9 ft121.9 m
Daily traffic100counted 2020
Last inspectedMarch 2023every 24 months

Location

StateNorth Carolina
CountyGuilford
Location0.25 Mi.w.jct. Oakdale RD
CarriesSr4121
CrossesDeep River
Coordinates35.98600, -79.93100

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length399.9 ft (121.9 m)
Max Span152.9 ft (46.6 m)
Deck Width43.0 ft (13.1 m)
Deck Area1596.9 sq m
Main Spans3
Year Built2022

Traffic

Avg Daily Traffic100 (2020)
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000811272

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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