US Bridges

KY-408 over Towns Branch

FairPosted for load

Marshall County, Kentucky · .20 MI East of JCT US 641 · Structure no. 079B00100N

Built
1927
98 years old
Condition
Fair
inspected June 2024
Type
Tee Beam
Concrete
Length
43 ft
1 main span
Daily traffic
4,813
2022 count
Owner
State
State Highway Agency

About this bridge

KY-408 over Towns Branch is a concrete tee beam carrying KY-408 over Towns Branch in Marshall County, Kentucky. It was built in 1927, so it is 98 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 4,813 vehicles a day, projected to reach 4,813 by 2042. The structure is 43 ft (13.1 m) long and 22 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesKY-408
CrossesTowns Branch
Location.20 MI East of JCT US 641
RouteState Highway 408
CountyMarshall County
StateKentucky
Coordinates36.85722, -88.34556
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.9 US tons
Inventory rating26.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length43 ft (13.1 m)
Longest span40 ft (12.2 m)
Deck width22 ft (6.7 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,813 (2022)
Projected traffic4,813 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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$131,000
NavigationNo navigation control on waterway

Frequently asked questions

When was KY-408 over Towns Branch built?

It was built in 1927, making it 98 years old in 2025.

What condition is KY-408 over Towns 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 June 2024.

How much traffic does KY-408 over Towns Branch carry?

About 4,813 vehicles per day (2022 count).

How long is KY-408 over Towns Branch?

The structure is 43 ft (13.1 m) long with a longest span of 40 ft (12.2 m) and a deck 22 ft wide.

Who owns KY-408 over Towns Branch?

It is owned by the State Highway Agency.