US Bridges

KY-11 over Marshall Branch

Fair

Mason County, Kentucky · .65 MI Nor. of JCT Ky 597 · Structure no. 081B00006N

Built
1989
36 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
32 ft
1 main span
Daily traffic
5,928
2022 count
Owner
State
State Highway Agency

About this bridge

KY-11 over Marshall Branch is a concrete culvert carrying KY-11 over Marshall Branch in Mason County, Kentucky. It was built in 1989, so it is 36 years old, younger 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 5,928 vehicles a day, roughly 13% of them trucks, projected to reach 5,928 by 2042. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesKY-11
CrossesMarshall Branch
Location.65 MI Nor. of JCT Ky 597
RouteState Highway 11
CountyMason County
StateKentucky
Coordinates38.53139, -83.75611
Functional classRural Minor Arterial

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 inspectionNovember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating93.3 US tons
Inventory rating55.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 25 or greater
Structure length32 ft (9.8 m)
Longest span32 ft (9.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,928 (2022)
Projected traffic5,928 by 2042
Trucks13%
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was KY-11 over Marshall Branch built?

It was built in 1989, making it 36 years old in 2025.

What condition is KY-11 over Marshall 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 November 2023.

How much traffic does KY-11 over Marshall Branch carry?

About 5,928 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is KY-11 over Marshall Branch?

The structure is 32 ft (9.8 m) long with a longest span of 32 ft (9.8 m).

Who owns KY-11 over Marshall Branch?

It is owned by the State Highway Agency.