US Bridges

KY-123 over Laster Branch

Good

Hickman County, Kentucky · .60 MI Sou. of JCT Ky 182 · Structure no. 053B00031N

Built
1934
91 years old
Condition
Good
inspected January 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
336
2021 count
Owner
State
State Highway Agency

About this bridge

KY-123 over Laster Branch is a concrete culvert carrying KY-123 over Laster Branch in Hickman County, Kentucky. It was built in 1934, so it is 91 years old, older than the Kentucky average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 336 vehicles a day, roughly 15% of them trucks, projected to reach 336 by 2041. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesKY-123
CrossesLaster Branch
Location.60 MI Sou. of JCT Ky 182
RouteState Highway 123
Coordinates36.65472, -89.05833
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length21 ft (6.4 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 traffic336 (2021)
Projected traffic336 by 2041
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedReplacement because of relocation of road
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was KY-123 over Laster Branch built?

It was built in 1934, making it 91 years old in 2025.

What condition is KY-123 over Laster Branch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2024.

How much traffic does KY-123 over Laster Branch carry?

About 336 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is KY-123 over Laster Branch?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns KY-123 over Laster Branch?

It is owned by the State Highway Agency.