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bluesnote: Disabling due to major floods. See photos from my friend's house who lives in the downtown area. Hopping for the best for everyone effected from California.

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EarthCache

Ellicott City - The Great Floods

A cache by bluesnote Send Message to Owner Message this owner
Hidden : 12/30/2015
Difficulty:
2 out of 5
Terrain:
1 out of 5

Size: Size: other (other)

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Geocache Description:

Lower Ellicott City had been prone to flooding since it was founded. There has been at least four different major floods in recorded history in Downtown Ellicott City. So what makes it so prone?

First of all, Ellicott City sits at the confluence of the Tiber and Patapsco Rivers. This in itself moves a lot of water. Another issue is that Ellicott City sits in a shallow valley, with many of the expanding buildings and homes having to be build literally over the Tiber river. This makes water from almost all directions converge in the valley to the Tiber River before being emptied in the Patapsco. And this isn't even the biggest issue.

watersheds work

The Tiber River is tiny compared to the Patapsco River. The Patapsco can carry larger amounts of water than the Tiber River can, adding to the quickness of the flooding downtown. The valley and large water confluence causes the natural watershed to be turned into a river itself. Water rushed from all directions until the larger Patapsco River can't handle the volume. It then backs up like how a dam backs up water. This causes water levels to rise, and rise, and rise.Flooding can cause billions in damaged and can be cause by numerous things such as hurricanes or unusual rainy periods and have unfortunately caused deaths in Ellicott City.

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Photos from the flooding in 1972 from Hurricane Agnes can be seen here: *
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And photos from the more recent 1997 Elorise Floods can be seen here: *
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* Note More photos from these historic floods can be seen with the works cited website with the astrid symbol (*).

Works Cited

**http://www.ellicottcity.net/tourism/history/floods/**

http://imgarcade.com/1/river-flooding-diagram/

http://www.wheatleyriver.ca/welcome/what-is-a-watershed/

TO LOG A FIND ON THIS CACHE YOU MUST GIVE ME THE CORECT ANSWERS BEFORE YOU LOG A FIND. YOU CAN CONTACT ME THROUGH MY EMAIL OR THE GEOCACHING MESSAGE CENTER. ANY INCORRECT ANSWERS WILL RESULT IN A DELETED LOG

1. Ellicott City - The Great Floods on the first line of your email.

2. There was a major flood in Ellicott City in summer of 2016. Look for any damages from this recent flood and describe these dangers to buildings, roads, and other objects you can see from GZ. ALSO describe where the water was coming from and where it was heading. You can do this by lookin at the grade of nearby Old US 40.

3. What flood precautionary techniques, if any, do you see around GZ?

4. What flood precautionary techniques could you add in addition to the ones already implemented?

* NOTE - You will likely not receive an email back from me, unless I need clarification on your answers. Please, don't wait for me to tell you you have it correct or not. I do review your emails within 12 hours of getting them in my inbox and with other of my earthcaches, it has become too hard to do. As soon as you send the email, you can log this earthcache.

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Last Updated: on 5/27/2018 6:03:39 PM Pacific Daylight Time (1:03 AM GMT)
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Coordinates are in the WGS84 datum

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