US Bridges

KY-1640 over Green River

Fair

Casey County, Kentucky · .45 MI N.W. of JCT US 127 · Structure no. 023B00022N

Built
1972
53 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
219 ft
3 main spans
Daily traffic
1,019
2022 count
Owner
State
State Highway Agency

About this bridge

KY-1640 over Green River is a prestressed concrete continuous stringer/multi-beam or girder carrying KY-1640 over Green River in Casey County, Kentucky. It was built in 1972, so it is 53 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 1,019 vehicles a day, projected to reach 1,019 by 2042. The structure is 219 ft (66.8 m) long and 28 ft wide. If it were closed, the detour would be 32.9 mi (53 km).

Location

Open in Google Maps
CarriesKY-1640
CrossesGreen River
Location.45 MI N.W. of JCT US 127
RouteState Highway 1640
CountyCasey County
StateKentucky
Coordinates37.20611, -85.00722
Functional classRural Minor 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to 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 rating66 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length219 ft (66.8 m)
Longest span72 ft (21.8 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,019 (2022)
Projected traffic1,019 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed32.9 mi (53 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was KY-1640 over Green River built?

It was built in 1972, making it 53 years old in 2025.

What condition is KY-1640 over Green River 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 August 2024.

How much traffic does KY-1640 over Green River carry?

About 1,019 vehicles per day (2022 count).

How long is KY-1640 over Green River?

The structure is 219 ft (66.8 m) long with a longest span of 72 ft (21.8 m) and a deck 28 ft wide.

Who owns KY-1640 over Green River?

It is owned by the State Highway Agency.