US Bridges

Ky 1020 over Northern Ditch

Fair

Jefferson County, Kentucky · 0.8 MI S of Ky 907 · Structure no. 056B00483N

Built
2003
22 years old
Condition
Fair
inspected March 2022
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
146 ft
3 main spans
Daily traffic
25,718
2023 count
Owner
State
State Highway Agency

About this bridge

Ky 1020 over Northern Ditch is a steel continuous stringer/multi-beam or girder carrying Ky 1020 over Northern Ditch in Jefferson County, Kentucky. It was built in 2003, so it is 22 years old, younger 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 25,718 vehicles a day, roughly 18% of them trucks, projected to reach 25,718 by 2043. The structure is 146 ft (44.5 m) long and 78 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesKy 1020
CrossesNorthern Ditch
Location0.8 MI S of Ky 907
RouteState Highway 1020
CountyJefferson County
StateKentucky
Coordinates38.14417, -85.75667
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110 US tons
Inventory rating69.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length146 ft (44.5 m)
Longest span56 ft (17 m)
Deck width78 ft (23.8 m)
Roadway width65 ft (19.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,718 (2023)
Projected traffic25,718 by 2043
Trucks18%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 1020 over Northern Ditch built?

It was built in 2003, making it 22 years old in 2025.

What condition is Ky 1020 over Northern Ditch 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 March 2022.

How much traffic does Ky 1020 over Northern Ditch carry?

About 25,718 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is Ky 1020 over Northern Ditch?

The structure is 146 ft (44.5 m) long with a longest span of 56 ft (17 m) and a deck 78 ft wide.

Who owns Ky 1020 over Northern Ditch?

It is owned by the State Highway Agency.