US Bridges

US-150 over NS RR and Harding ST

Fair

Boyle County, Kentucky · .2 MI W of Maple Avenue · Structure no. 011B00043N

Built
1949
76 years old, rebuilt 2003
Condition
Fair
inspected October 2022
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
756 ft
3 main spans
Daily traffic
13,146
2022 count
Owner
State
State Highway Agency

About this bridge

US-150 over NS RR and Harding ST is a steel continuous stringer/multi-beam or girder carrying US-150 over NS RR and Harding ST in Boyle County, Kentucky. It was built in 1949 and reconstructed in 2003, so it is 76 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 13,146 vehicles a day, roughly 9% of them trucks, projected to reach 13,146 by 2042. The structure is 756 ft (230.4 m) long and 43 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesUS-150
CrossesNS RR and Harding ST
Location.2 MI W of Maple Avenue
RouteU.S. Route 150
Coordinates37.64583, -84.78528
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating78.6 US tons
Inventory rating47.2 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+9 approach)
Design loadH 20
Structure length756 ft (230.4 m)
Longest span141 ft (43.1 m)
Deck width43 ft (13 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,146 (2022)
Projected traffic13,146 by 2042
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed3.1 mi (5 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$10.2 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was US-150 over NS RR and Harding ST built?

It was built in 1949, making it 76 years old in 2025. It was reconstructed in 2003.

What condition is US-150 over NS RR and Harding ST 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 2022.

How much traffic does US-150 over NS RR and Harding ST carry?

About 13,146 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is US-150 over NS RR and Harding ST?

The structure is 756 ft (230.4 m) long with a longest span of 141 ft (43.1 m) and a deck 43 ft wide.

Who owns US-150 over NS RR and Harding ST?

It is owned by the State Highway Agency.