Flood Tank

Flood Tank

I was given the opportunity to also learn more about civil and environmental engineering relating to flooding and have a chance to participate in developing and evaluating a possible simulation lab that could be incorporated into middle and high schools in the the area.

The flood tank is a physical model of how floodplains play in the existence of watersheds and the impact of unplanned development from humans.

Components for Simulation

Rainfall Simulation:

  • Two plastic boards with two different size holes that simulated light or heavy rainfall and the frequency.

Different biomes Simulation the rain falls onto:

  • Wetlands (simulated by sponges)

  • Parking lot(flat piece of plastic)

  • Retention pond (that could be put underneath the parking lot)

Other:

  • There were also miniature cars and trees to put on the parking lot and wet lands, or on the floodplain.

Terms

Floodplain: Area adjacent to a stream or river that is periodically covered with high water.

Watershed: Land area that drains into a specific body of water (also known as a river basin).

No Adverse Impact (NAI): Approach to floodplain management ensures action of one property owner or community does not adversely impact properties and rights of other property owners [measured by: flood peaks, flood stage, flood velocity, erosion, sedimentation, current costs, and future costs].

Wetlands: Areas water saturates the soil or covers the land for most or all the year (ex: marshes, swamps, bogs).

Runoff footprint: Measures of impact by human activities on flooding, or potential flooding, in terms of amount of water that is discharged (runoff) from a drainage area over given period of time.

Bankfull Stage: An established gage heigh at a given location along a river or stream above which a rise in water surface will cause the river or stream to overflow the lowest natural stream bank somewhere along the river.

Flood Stage: Defined by National Weather Service. An established gage height for a given location above which a rise in water surface level begins to create a hazard to lives, property, or commerce.

Levee Systems: Usually earthen embankments designed and constructed to contain, control, or divert the flow of water to provide some level of protection from flooding.

Retention Ponds: Man-made low areas designed to capture and store runoff for a limited period of time before being released through an outlet, at a controlled release rate.

Related Activities

The tank came with A Stormwater Floodplain Simulation System Activities. My task was to read through the activities (and to follow some using the flood tank if they were confusing). While reading through the activities, I would try to determine which are best for Middle Schoolers and which are better for High Schoolers.


The Activities:

  • Activity 1 - Case Study: A Flooded Community

  • Activity 2 - Fate of Rain

  • Activity 3 - Modeling Flood Risk Factors

  • Activity 4 - Man-Made Attempts to Minimize Flooding

  • Activity 5 - Factors Affecting Flood Forecasting

  • Activity 6 - Planning a Flood-Safe Community

  • Activity 7 - River Crest Analysis

  • Activity 8 - Turn Around Don't DrownTM


My Examination of the Labs:

Middle vs High School

Middle School: 1, 2, 3, 4, 5, 6, 7?

High School: 2, 3, 4, 6, 7, 8

My Comments

Activity 1: Good introducer to the unit and what affects floods (best for middle school as is).

Activity 2: Simplistic first lab of a unit. Could be used to get used to the information and causes and prevention's of floods.

Activity 3/4: Both good for testing using the flood tank (could be for both middle school and high school - only depends on the student's level).

Activity 5: A bit simplistic introduction. Maybe best suited for middle schoolers.

Activity 6: Good for real life impacts on a real life community.

Activity 7: Another lab about the real life causes and issues. Could be a bit more complicated for middle schoolers (just depends on their current level of mathematics and analysis).

Activity 8: A good closing activity of the unit. For high school it could be useful in an activism club relating to flooding.

Changes/ Alterations to the Labs

Activity 1: To make it more engaging in the class by maybe testing out some of the proposed ideas (then this activity could be more suited for High Schoolers as well). It also could be combined with another lab and used as background.

Activity 2: Could test out the claims of the fate of rain as well as learning about them. It also could be combined with another lab and used as background.

Activity 5: To make it more engaging would be to test the factors that affect flooding in a community. It also could be combined with another lab.

Activity 6: This lab could be followed by the students creating a safe community of their own in the flood tank and testing it.

Changes/ Alterations to the Labs

Add sand or other natural materials (dirt, moss, grass) to see how they are moved around and affected by the rainfall and flooding.


Create a house set up to minimize flooding.