US Bridges

I-64 WB over Grinstead DR

Fair

Jefferson County, Kentucky · 1.35 MI E of US 42 · Structure no. 056B00149L

Built
1968
57 years old
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Single or Spread
Concrete
Length
88 ft
1 main span
Daily traffic
34,546
2023 count
Owner
State
State Highway Agency

About this bridge

I-64 WB over Grinstead DR is a concrete box beam or girders - single or spread carrying I-64 WB over Grinstead DR in Jefferson County, Kentucky. It was built in 1968, so it is 57 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 5 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 34,546 vehicles a day, roughly 6% of them trucks, projected to reach 38,000 by 2043. The structure is 88 ft (26.7 m) long and 42 ft wide.

Location

Open in Google Maps
CarriesI-64 WB
CrossesGrinstead DR
Location1.35 MI E of US 42
RouteInterstate 64
CountyJefferson County
StateKentucky
Coordinates38.24722, -85.70028
Functional classUrban Principal Arterial - Interstate

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85.4 US tons
Inventory rating51.3 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length88 ft (26.7 m)
Longest span84 ft (25.5 m)
Deck width42 ft (12.7 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34,546 (2023)
Projected traffic38,000 by 2043
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$352,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-64 WB over Grinstead DR built?

It was built in 1968, making it 57 years old in 2025.

What condition is I-64 WB over Grinstead DR 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 April 2023.

How much traffic does I-64 WB over Grinstead DR carry?

About 34,546 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is I-64 WB over Grinstead DR?

The structure is 88 ft (26.7 m) long with a longest span of 84 ft (25.5 m) and a deck 42 ft wide.

Who owns I-64 WB over Grinstead DR?

It is owned by the State Highway Agency.