US Bridges

KY-106 over Mud River

Fair

Logan County, Kentucky · 1 MI E of JCT Ky 1153 · Structure no. 071B00007N

Built
1935
90 years old
Condition
Fair
inspected October 2023
Type
Tee Beam
Concrete
Length
214 ft
6 main spans
Daily traffic
745
2023 count
Owner
State
State Highway Agency

About this bridge

KY-106 over Mud River is a concrete tee beam carrying KY-106 over Mud River in Logan 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 745 vehicles a day, roughly 15% of them trucks, projected to reach 745 by 2043. The structure is 214 ft (65.2 m) long and 24 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesKY-106
CrossesMud River
Location1 MI E of JCT Ky 1153
RouteState Highway 106
CountyLogan County
StateKentucky
Coordinates37.00417, -86.90722
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.7 US tons
Inventory rating40.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadH 15
Structure length214 ft (65.2 m)
Longest span45 ft (13.7 m)
Deck width24 ft (7.2 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic745 (2023)
Projected traffic745 by 2043
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$585,000
NavigationNo navigation control on waterway

Frequently asked questions

When was KY-106 over Mud River built?

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

What condition is KY-106 over Mud River 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 October 2023.

How much traffic does KY-106 over Mud River carry?

About 745 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is KY-106 over Mud River?

The structure is 214 ft (65.2 m) long with a longest span of 45 ft (13.7 m) and a deck 24 ft wide.

Who owns KY-106 over Mud River?

It is owned by the State Highway Agency.