US Bridges

Grade LN over Northern Ditch

Good

Jefferson County, Kentucky · 300 Ft S of Crittenden DR · Structure no. 056C00280N

Built
2020
5 years old
Condition
Good
inspected January 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
59 ft
3 main spans
Daily traffic
12,681
2020 count
Owner
County
County Highway Agency

About this bridge

Grade LN over Northern Ditch is a prestressed concrete box beam or girders - single or spread carrying Grade LN over Northern Ditch in Jefferson County, Kentucky. It was built in 2020, so it is 5 years old, younger 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 12,681 vehicles a day, roughly 17% of them trucks, projected to reach 12,681 by 2040. The structure is 59 ft (18.1 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesGrade LN
CrossesNorthern Ditch
Location300 Ft S of Crittenden DR
RouteCounty Highway 1001
CountyJefferson County
StateKentucky
Coordinates38.1525, -85.73444
Functional classUrban Minor Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80 US tons
Inventory rating61.8 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadGreater than HL 93
Structure length59 ft (18.1 m)
Longest span20 ft (6.1 m)
Deck width33 ft (10.2 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,681 (2020)
Projected traffic12,681 by 2040
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Grade LN over Northern Ditch built?

It was built in 2020, making it 5 years old in 2025.

What condition is Grade LN over Northern Ditch 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 January 2024.

How much traffic does Grade LN over Northern Ditch carry?

About 12,681 vehicles per day (2020 count), of which roughly 17% are trucks.

How long is Grade LN over Northern Ditch?

The structure is 59 ft (18.1 m) long with a longest span of 20 ft (6.1 m) and a deck 33 ft wide.

Who owns Grade LN over Northern Ditch?

It is owned by the County Highway Agency.