US Bridges

LN-9008 over Middle Prong Creek

Fair

Adair County, Kentucky · 2.5 MI East of Ky 80 Op · Structure no. 001B00056N

Built
1971
54 years old
Condition
Fair
inspected July 2021
Type
Culvert
Concrete
Length
38 ft
2 main spans
Daily traffic
6,013
2023 count
Owner
State
State Highway Agency

About this bridge

LN-9008 over Middle Prong Creek is a concrete culvert carrying LN-9008 over Middle Prong Creek in Adair County, Kentucky. It was built in 1971, so it is 54 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 6,013 vehicles a day, roughly 29% of them trucks, projected to reach 6,013 by 2043. The structure is 38 ft (11.5 m) long and 159 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesLN-9008
CrossesMiddle Prong Creek
Location2.5 MI East of Ky 80 Op
RouteState Highway 9008
CountyAdair County
StateKentucky
Coordinates37.05472, -85.43361
Functional classRural Principal Arterial - Other

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 protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110 US tons
Inventory rating110 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length38 ft (11.5 m)
Longest span18 ft (5.5 m)
Deck width159 ft (48.5 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,013 (2023)
Projected traffic6,013 by 2043
Trucks29%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was LN-9008 over Middle Prong Creek built?

It was built in 1971, making it 54 years old in 2025.

What condition is LN-9008 over Middle Prong Creek 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 July 2021.

How much traffic does LN-9008 over Middle Prong Creek carry?

About 6,013 vehicles per day (2023 count), of which roughly 29% are trucks.

How long is LN-9008 over Middle Prong Creek?

The structure is 38 ft (11.5 m) long with a longest span of 18 ft (5.5 m) and a deck 159 ft wide.

Who owns LN-9008 over Middle Prong Creek?

It is owned by the State Highway Agency.