Structure 810492 · Guilford County, NC

Merritt Drive over South Buffalo Creek

Carries Merritt Drive over South Buffalo Creek, 0.4mi.s.jct.patterson St..

Overall conditionFair

Set by its lowest-rated component: Culvert at 6 of 9.

How ratings work
Culvertsets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT50 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 50 ft across with 4 openings. Lengths and the car 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, so those are drawn as typical for a culvert.

Built1971rebuilt 1999
Length49.9 ft15.2 m
Daily traffic17,500counted 2021
Last inspectedFebruary 2024every 24 months

Location

StateNorth Carolina
CountyGuilford
Location0.4mi.s.jct.patterson St.
CarriesMerritt Drive
CrossesSouth Buffalo Creek
Coordinates36.04921, -79.85489

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length49.9 ft (15.2 m)
Max Span11.8 ft (3.6 m)
Deck Area264.5 sq m
Main Spans4
Year Built1971 (reconstructed 1999)

Traffic

Avg Daily Traffic17,500 (2021)
Truck Traffic7%
Lanes On Bridge5

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000810492

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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