US Bridges

KY-3630 over Dry Branch

Fair

Jackson County, Kentucky · 1.5 MI NE of JCT Ky 2002 · Structure no. 055B00009N

Built
1935
90 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
664
2023 count
Owner
State
State Highway Agency

About this bridge

KY-3630 over Dry Branch is a concrete culvert carrying KY-3630 over Dry Branch in Jackson County, Kentucky. It was built in 1935, so it is 90 years old, older than the Kentucky average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 664 vehicles a day, roughly 7% of them trucks, projected to reach 664 by 2043. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesKY-3630
CrossesDry Branch
Location1.5 MI NE of JCT Ky 2002
RouteState Highway 3630
CountyJackson County
StateKentucky
Coordinates37.30029, -84.03202
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating44 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic664 (2023)
Projected traffic664 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was KY-3630 over Dry Branch built?

It was built in 1935, making it 90 years old in 2025.

What condition is KY-3630 over Dry Branch in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2024.

How much traffic does KY-3630 over Dry Branch carry?

About 664 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is KY-3630 over Dry Branch?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns KY-3630 over Dry Branch?

It is owned by the State Highway Agency.