Feed LotFeed Lot Run Off!!! Run Off!!!UNL Environmental Engineering

Lesson July 2007

Marie Nielsen

College of Engineering

Architectural Engineering Biological Systems Engineering

Chemical and Biomolecular

Engineering Civil Engineering Computer Science & Engineerin

g Computer & Electronics Engine

ering Construction Management Construction Systems Electrical Engineering Engineering Mechanics Industrial & Management Syste

ms Engineering Mechanical Engineering

Special Programs & Units Faculty Directory:

Environmental Engineering**

Mid-America Transportation Center**

Midwest Roadside Safety Facility

Six Sigma Study Abroad**

* = Omaha Campus ** = Omaha & Lincoln

Campuses

Environmental Engineering Slide Show

http://www.sos.state.ne.us/business/regsearch/Rules/Environmental_Quality_Dept_of/Title-198/Appendix-A.pdf

Runoff settling basin and holding pond

Manure is scraped periodically from feedlots and spread on croplands

Good management practices decrease risk of contaminating water supplies

http://www.ces.purdue.edu/extmedia/WQ/WQ-7.html

Proper Storage of Liquid waste

Can be used as a viable fertilizer

Reduces chance of surface and ground water contamination

Meets regulations

http://www.state.sd.us/denr/DES/Ground/AWMS/AWMS.htm

Pen USDA Research Project

Effects of Pond Ash as a Feedlot Pen Surface and Animal Stress-Level on the Prevalence, Levels, and …

Project Number: 5438-32000-026-03 Project Type: Trust Start Date: May 01, 2006 End Date: Apr 30, 2008 http://www.ars.usda.gov/research/projects/projects.htm

?ACCN_NO=410515

Table of Runoff Curve Numbers (SCS, 1986)

http://www.lmnoeng.com/Hydrology/hydrology.htm

Calculating Rainwater peak Runoff

Rational Method The formula is: Q=CiA

Q = peak runoff rate (cfs) I = is rainfall intensity

(in/hr) A = drainage area (acres) C is runoff coefficient

(Activity 4.5.3A)

http://webmail.nicolet.k12.wi.us/~Jason_Huber/FOV2-00014049/FOV2-00019020/FOV2-0001903C/Rainwater%20Runoff.pdf?FCItemID=S008265FE

Water run off in the community http://edweb.sdsu.edu/

sciencetg/elementary/pond/pond4.html

(Area of Pavement & Buildings) ____________________________  X 100% = % of rain lost to run off (Area of entire playground)

Heavy Rains Drench G.I. Heavy rains drench

G.I. Rainfall early Sunday

brought 5.07 inches of water

Grand Island had flooded: parking lots streets low-lying areas

            

Maxed out G.I. rain detention cell

Foreground is Lawrence Lane

Behind is maxed out rain detention cell

Far back is spillage on to State Street in front of McDonalds occurred

http://www.flickr.com/photos/candleshoe/941130784/

Nebraska Weather and Climate Page

http://www.hprcc.unl.edu/nebraska/

Image © Mike Hollingshead. Saturday evening, September 16, 2006. Lightning over Omaha.

Calculating Storm Water Run-on @ Construction Sites

Run-on water that comes

from off-site locations

drains onto construction site

Q - run-on flow (m3 /sec)

C - run-off coefficient for drainage area (%)

i - rainfall intensity (mm/hour)

A - area draining onto the site (km2 )

http://www.dot.ca.gov/hq/env/stormwater/publicat/const/Dec_2000.pdf

Teach engineering

http://www.teachengineering.org/view_activity.php?url=http://www.teachengineering.com/collection/cub_/activities/cub_air/cub_air_lesson03_activity2.xml

Resources for K-12 Students

http://www.engineeringpathway.com/ep/

http://www.free.ed.gov/resource.cfm?resource_id=1629&subject_id=43