US Bridges

LN-9008 over Mt. Pisgah Rd-Swanniganc

Good

Barren County, Kentucky · Ebl 4.2 MI E-Ky 90 Ntrch · Structure no. 005B00075R

Built
1973
52 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
213 ft
4 main spans
Daily traffic
3,474
2022 count
Owner
State
State Highway Agency

About this bridge

LN-9008 over Mt. Pisgah Rd-Swanniganc is a prestressed concrete continuous stringer/multi-beam or girder carrying LN-9008 over Mt. Pisgah Rd-Swanniganc in Barren County, Kentucky. It was built in 1973, so it is 52 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 3,474 vehicles a day, roughly 28% of them trucks, projected to reach 3,474 by 2042. The structure is 213 ft (64.9 m) long and 33 ft wide.

Location

Open in Google Maps
CarriesLN-9008
CrossesMt. Pisgah Rd-Swanniganc
LocationEbl 4.2 MI E-Ky 90 Ntrch
RouteState Highway 9008
CountyBarren County
StateKentucky
Coordinates36.99611, -85.82361
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110 US tons
Inventory rating68.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length213 ft (64.9 m)
Longest span56 ft (17.1 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,474 (2022)
Projected traffic3,474 by 2042
Trucks28%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$853,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was LN-9008 over Mt. Pisgah Rd-Swanniganc built?

It was built in 1973, making it 52 years old in 2025.

What condition is LN-9008 over Mt. Pisgah Rd-Swanniganc 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 August 2024.

How much traffic does LN-9008 over Mt. Pisgah Rd-Swanniganc carry?

About 3,474 vehicles per day (2022 count), of which roughly 28% are trucks.

How long is LN-9008 over Mt. Pisgah Rd-Swanniganc?

The structure is 213 ft (64.9 m) long with a longest span of 56 ft (17.1 m) and a deck 33 ft wide.

Who owns LN-9008 over Mt. Pisgah Rd-Swanniganc?

It is owned by the State Highway Agency.