Structure 84B00020N · Mercer County, KY

Ky-598 over Dry Branch

Carries Ky-598 over Dry Branch, .01 Mi E Of Jct Ky 1915.

Overall conditionGood

Set by its lowest-rated component: Culvert at 7 of 9.

How ratings work
Culvertsets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT29 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 29 ft across with 2 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.

Built196660 years old
Length29.2 ft8.9 m
Daily traffic214counted 2021
Last inspectedAugust 2022every 48 months

Location

StateKentucky
CountyMercer
Location.01 Mi E Of Jct Ky 1915
CarriesKy-598
CrossesDry Branch
Coordinates37.72333, -84.86139

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length29.2 ft (8.9 m)
Max Span14.1 ft (4.3 m)
Deck Width32.2 ft (9.8 m)
Deck Area87.2 sq m
Main Spans2
Year Built1966

Traffic

Avg Daily Traffic214 (2021)
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical8 — Stable, low risk
Structure Number084B00020N

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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