Keith Hautala

By

Landslides: A Threat in Kentucky Too

Published: Mar 27, 2014

LEXINGTON, Ky. (March 27, 2014) — Kentucky geologists say Saturday morning's landslide in rural Snohomish County, Wa., should serve as a reminder that other parts of the country, including the Commonwealth, face similar threats.

 

The incident in Washington state, reported to cover about a square mile, occurred as a result of recent heavy rains that saturated the ground. Kentucky has also been affected by landslides, though most of them are not as large or devastating as the Washington state slide.

 

The Kentucky Geological Survey (KGS) at the University of Kentucky is compiling a landslide inventory database to better document the distribution and geologic context of Kentucky’s landslides.

 

“The purpose of the database is to provide users easy access to landslide information, raise awareness of landslide causes, and avoid property damage or injury,” says Matt Crawford, who maintains the database at KGS. “Landslides are more likely to occur in areas of existing slides, because the rocks and soil are already weakened, although the style and rate of movement may be different.”


Knowing landslide locations and their relationship to geologic properties (bedding, mineral composition, porosity, slope, thickness, strength, etc.) can mitigate potential problems associated with construction of roads, foundations, and bridges, and contribute to overall practical hillslope development.


“Landslide” is a broad term referring to the downslope movement of rock, soil, or both under the influence of gravity. The type of material in a landslide and its style of movement influences decisions needed for hazard mitigation and risk reduction. The majority of landslides in Kentucky occur within colluvial soils or along the soil-bedrock contact. Colluvial soils are formed by weathering and erosion of rock and soil accompanied by downslope movement by gravity. When disturbed or loaded, by heavy rainfall saturating a slope, for example, these soils are susceptible to landslides.


The Greater Cincinnati/Northern Kentucky area and Eastern Kentucky are particularly susceptible to landslides. These areas have steep slopes, easily weathered rock types, and locally thick, weak soils. When combined with several triggers such as intense rainfall, water-level change, or modification of slopes by humans, landslides can occur. Crawford and others at KGS have visited multiple landslide sites to assess them and help local governments with long-term solutions.


Local governments and regional planning agencies have requested his help with assessing damaging incidents in Lawrence and Boyd Counties, where homeowners have been forced to move out after sudden movement of the ground undermined their homes. Crawford has monitored a landslide in rural Boyd County, where a home has been abandoned. He used soil sampling and instruments to determine groundwater levels, the speed of the ground movement, and the depth and shape of the sliding groundmass at the site.


In addition to the landslide inventory and site assessments, a study correlating highway maintenance-cost data for landslides and rockfalls to geologic units has been recently completed by another KGS researcher. Seven years of Kentucky Transportation Cabinet data were analyzed to determine the geologic and geographic context of slides and falls that cost $37.4 million in repairs. Bethany Overfield found that not all geologic units have an equal likelihood for these hazards. According to Overfield, repair-cost analysis highlighted geologic units that were the most costly to maintain and most frequently repaired. This analysis provides transportation engineers and planners with a predictive tool for better assessing future roadway construction and budgets.


KGS has resources available to help people find out more about landslides in this region. Information, photos, and a KGS fact sheet are available at www.uky.edu/KGS/geologichazards/landslide.htm.

 

The KGS landslide database was used to create an online landslide information map that shows locations of known landslides and areas susceptible to landslides in a geologic and geomorphic context. It can be seen at kgs.uky.edu/kgsmap/kgsgeoserver/viewer.asp?layoutid=25#.

 

KGS partnered with the geological surveys of Indiana and Ohio, as well as the University of Cincinnati geology department, to produce a detailed pamphlet about the region’s landslide conditions. Duke Energy provided funding to print “Landslides and Your Property” in 2013. Folded, ready-to-use paper copies are available from the KGS Public Information Center on the UK campus for $4 each. They may be ordered by calling 859-257-3896 or toll-free at 1-877-778-7827 and asking for publication 17740. A low-resolution version of the publication can also be viewed at kgs.uky.edu/kgsweb/olops/pub/kgs/LandslidesBrochure.pdf.

 

 

 

MEDIA CONTACT: Keith Hautala, 859-323-2396; keith.hautala@uky.edu

a.jpgb.jpgc.jpgd.jpge.jpg
Tags:
August
 
 
 
 
 
1
Employee Educational Assistance Award
Landscape/Mindscape: Selections from the Wells Fargo Collection
Fri
2
Employee Educational Assistance Award
Landscape/Mindscape: Selections from the Wells Fargo Collection
Sat
3
Employee Educational Assistance Award
Landscape/Mindscape: Selections from the Wells Fargo Collection
Artful Sunday: Wrapped Art
Sun
4
Employee Educational Assistance Award
Mon
5
Employee Educational Assistance Award
Landscape/Mindscape: Selections from the Wells Fargo Collection
Tue
6
Employee Educational Assistance Award
Landscape/Mindscape: Selections from the Wells Fargo Collection
Get Moving - A Walking Group for Caregivers
Wed
7
Employee Educational Assistance Award
Landscape/Mindscape: Selections from the Wells Fargo Collection
Thu
8
Employee Educational Assistance Award
Landscape/Mindscape: Selections from the Wells Fargo Collection
Fri
9
Employee Educational Assistance Award
Landscape/Mindscape: Selections from the Wells Fargo Collection
Sat
10
Employee Educational Assistance Award
Landscape/Mindscape: Selections from the Wells Fargo Collection
Sun
11
Employee Educational Assistance Award
Mon
12
Employee Educational Assistance Award
Landscape/Mindscape: Selections from the Wells Fargo Collection
UK Working Moms Connection
Tue
13
Employee Educational Assistance Award
Landscape/Mindscape: Selections from the Wells Fargo Collection
Wed
14
Employee Educational Assistance Award
Landscape/Mindscape: Selections from the Wells Fargo Collection
Thu
15
Employee Educational Assistance Award
Landscape/Mindscape: Selections from the Wells Fargo Collection
Fri
16
Employee Educational Assistance Award
Landscape/Mindscape: Selections from the Wells Fargo Collection
Sat
17
Employee Educational Assistance Award
Landscape/Mindscape: Selections from the Wells Fargo Collection
Sun
18
Employee Educational Assistance Award
Mon
19
Employee Educational Assistance Award
Tue
20
Employee Educational Assistance Award
Chronic Disease Self-Management Program
Wed
21
Employee Educational Assistance Award
Thu
22
Employee Educational Assistance Award
Midnight Dodgeball Tournament
CARES First Year Focus Parent Meetings
CARES First Year Focus Parent Meetings
Parent and Families Reception
Residence Hall Floor Meeting
Off-campus Freshmen Check-in
K Team Meeting: K Week Kick-off
Death By Chocolate
Fri
23
Employee Educational Assistance Award
A Parent's Guide to Life after August 23
Campus Safety Information Session
Donut Avoid The Study
Common Cents: Money Management for College Students Session 1
See Blue...See Community
Succeeding in A Large Lecture Classroom
Horses, Bluegrass, Basketball, and More: Welcome to Kentucky
Success at Any Age: College Tips for Adult Learners
Write Right: Tips for Writing Well in College
Common Cents: Money Management for College Students Session 2
How to Graduate in Four Years
Parental Involvement in Fraternity and Sorority Life
Parents Watch for Warning Signs: Suicide Prevention for College Students
Preparing to be a Pre-Professional
Presentation U!: Where YOU are the Ultimate Presentation
Religious Life at UK
Successful Off-Campus Living
The Transfer Student Cruise: Navigating your way through UK
UK Parking & Transportation 101
You Heard It Here First: Tips From A Faculty Member
New Student Induction Ceremony
Minority Student Welcome
Transfer Student Cookout
K Team Meeting: K Week Overview
Men's Soccer vs. Georgia State
Big Blue U
Campus Ruckus
Campus Ruckus
Sat
24
Employee Educational Assistance Award
LNFS Presents: Jackass 3
LNFS Presents: Godzilla
Pedalpalooza
K Team Meeting: Lunch and Campus Tour
Center for Community Outreach: Do Good, Start Here.
UK Lex-Mart
Alternative Service Breaks: See the World, Change the World
From the Real World to the Amazing Race, Don't Wipeout: Your Advisor, Advising, and You
Blackboard Basics
Student Government Association Information Session
EMPOWER: Women’s Leadership Retreat Interest Session
Student Center Spectacular
Student Center Spectacular
Sun
25
Employee Educational Assistance Award
UK FUSION
UK Parking & Transportation 101
University of Kentucky Association for Transfer Students Interest Session
Candy, Condoms, Coffee
Cleaner, Healthier, Cheaper, Faster: Why Bicycling is the Best Way to Get Around Campus (and how to do it safely)
Working on Campus
K Team Meeting: Dinner with your K Team
Meijer Mania
Mon
26
Employee Educational Assistance Award
Last Day to Drop a Course with 100% Refund
Chem at UK Cafe-N-OJ with the Student American Chemical Society
Coffee (or Coke), Cookies, & Communication!: Come see blue. at Presentation U!
Don't Blow Yourself Up: Surviving Chemistry
Fraternity Recruitment Info Session
OMG! Did I Just E-Mail That to My Professor???
Surviving Your First Year and Beyond: Strategies To Do Well in Your Classes
Sustainable UK: Exploring Environmental Programs in the College of Agriculture, Food, and Environment (CAFE)
A User Guide for Your Mathematics Class
Discover the UK Art Museum
K Team Meeting: Common Reading Experience Discussion
Common Reading Introduction for International Students
Transfer Student Meet and Greet
We Are UK
Rec 'N Roll 2014
Big Blue Bingo Night
Mic Check
Tue
27
Employee Educational Assistance Award
Fraternity Recruitment Info Session
LNFS Presents: Jurassic Park
First Day of Classes
Open House - Special Collections Research Center
King Cookout
Campus Outreach
Opening Act: The Amazing Spider-Man 2
Wed
28
Employee Educational Assistance Award
Internship Info Session
LNFS Presents: Her
LNFS Presents: Captain America: The Winter Soldier
Student Involvement Fair
OrgSync Info session
LGBTQ* Welcome Back
Dive Into Diversity!
CATalyst's Dive Into Diversity Session
Residence Hall Floor Meetings
Thu
29
Employee Educational Assistance Award
Sea of Blue
One Last Beach Bash: RSA Block Party
LNFS Presents: Team America: World Police
Pills and Pizza
K Week Event: Pills and Pizza
Kentucky Volleyball vs. Wichita State
Kentucky Women's Soccer vs. Francis Marion
Fri
30
Employee Educational Assistance Award
LNFS Presents: Neighbors
The Tailgate "Kick-Off"
Kentucky Volleyball vs. Butler
Kentucky Football vs. UT-Martin
Kentucky Volleyball vs. Virginia Tech
Sat
31
Employee Educational Assistance Award
Kentucky Women's Soccer vs. Ohio
Men's Soccer vs. Belmont
Sun
 
 
 
 
 
 
Aug 30
LNFS Presents: Neighbors 08/30/2014
Reset Page