KYTC Lightweight Material on Culvert Design

Site Information
Designed By		Design Date
County*		District
Route No.*	e.g. US 27	Direction
Speed Limit	M.P.H.	Site Description
MP from	to	Latitude Longitude

Existing Condition: Profile Design Case # (for retrieving different case only)
Culvert Width (ft.)*	Culvert Height (ft.)*
Soil Type*	E soil (psf)* Density soil (pcf)*
Existing Fill Height (ft.)*
New Fill Condition
New Fill Height (ft.)*
Lightweight Material Type*	E LWM (psf)* Density LWM (pcf)*
New Design Fill Profile
h (ft.)	h fixed if this box checked. h = Fill Height above LWM
t (ft.)	t fixed if this box checked. t = Thickness of LWM
L (ft.)	L fixed if this box checked. L = Lenghth of LWM
d (ft.)	d fixed if this box checked. d = Distance between Culvert Top and LWM Bottom
	This design utilizes a minimal amount of lightweight material.
Check Design
Top Panel Target Ratio:	Top Panel New Design Ratio: Pass or Fail:
Side Wall Target Ratio:	Side Wall New Design Ratio: Pass or Fail:
Design Results
Option# TopRatio WallRatio h t L d 01 0.69612 0.86554 14.0 5.0 37.0 11.0 02 0.85392 0.85386 5.0 5.0 48.0 20.0 03 0.85475 0.85843 4.0 5.0 49.0 21.0 04 0.85558 0.86281 3.0 5.0 50.0 22.0 05 0.85642 0.85035 2.0 5.0 52.0 23.0 - This design involves minimal excavation.

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File Name	Type	Size	Uploaded By	Organization	Date	Registered User Only

Attached Files for This Design

LWMonCulvertDesign.PNG	image/png	89643	1 Charlie Sun	University of Kentucky	Oct 15, 2023	3
LWMonCulvertDesign2.PNG	image/png	1625761	1 Charlie Sun	University of Kentucky	Oct 15, 2023	4
LWMonCulvertDesign3b.PNG	image/png	1596547	1 Charlie Sun	University of Kentucky	Oct 15, 2023	5


County		District
Route No.		Route Direction
Existing Fill Height:	Culvert Width: Culvert Height:
NewFillHeight:	Submit By: Submit Date
Design Results


This lightweight material profile design has been accepted by:
Central Office KYLHRS Manager:		Accept Date:

Central Office KYLHRS Manager's Decision:

Request Changes

	Comments (Limited to 120 characters):

	Central Office Lightweight Material Profile Design Manager's Name:
	Today's Date: July 01, 2025

	The following email will be sent to submitter by system:
	Hello (First Name),
	Your new design information, (Route Number, County and Route Description), cannot be accepted at this time. The following items need to be modified before further consideration: (item list customized by sender) Thank you.

	My Name
	Central Office KYLHRS Administrator
	My Phone Number

	You can customize red portion by modifying following to fit your needs if you want:
		(item list customized by sender)