FLOOD01336

• County: Douglas
• Community: Parker
• Stream Name: Sulphur Gulch
• Title: Floodplain Study - Sheet 2
• Date: 3/6/1997
• Prepared For: Villages of Parker Elementary School
• Prepared By: Merrick & Company
• Floodplain - Doc Type: Drawing/Map

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~ 500 YEAR FLOODPLAIN

!CD 100 YEAR FLOODWAY

c=J 100 YEAR FLOODPLAIN
- ELEMENTARY SCHOOL PROPERTY
- PROPOSED CONTOUR
l!XX1<<:~1 RIPRAP REQUIRED

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LETTER OF MAP REVISION

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I, M~rk F. Ericson, 0 R.egistered. Professional Engineer in the State of Colorado, hereby
certify that the hydraulic analysIs of the Villages of Porker Elementary School and
Sulphur Gulch prepared by Merrick & Company was performed In accordance with sound
engineering practice based on the Army Corps of Engineers HEC-2 computer software.
This certification includes the analysis of the revised project and the
existing culvert under Riva Ridge Road.

I, David R. Franzen, a Registered Professional Land Surveyor
in the State of Colorado, hereby certify that the two foot
contour interval mapping used in the Conditional Letter of
Mop Revision for the Villages of Porker Elementary School
and Sulphur Gulch prepared by Merrick & Company was based
on aerial photography flown by Merrick & Company during
September, 1994. I further certify that the mopping meets
Notional Mopping Standards.

----------------------------------
Mark F, Ericson P,L No. 20828
for and on behalf of
Merrick & Company
Job No. 20008789
Dote:
-----------------------------

--------------------------------

David R, Franzen P.L.S, No. 29036
For and on behalf of
Merrick & Company
IN: 20008789

Date:___________________________

NOTE:

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BAR SCALE
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Scale 1" = 200'
CONTOUR INTERVAL = 2'

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1. CONTOURS ARE SHOWN IN TWO FOOT INTERVALS
2. THE MAPPING IS REFERENCED TO THE NATIONAL
GEODETIC VERTICAL DATUM OF 1929
3. THIS MAP IS A REVISION TO FIRM COMMUNITY
PANEL NO. 0800490090 C, SEPTEMBER 30, 1987

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Scale

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DRAWING NAME
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Date

02-28-94
20008789

Job No.
Sheet

of

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6

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