FLOOD10386

• County: Jefferson
• Community: Golden, Lakewood
• Stream Name: Upper Lena Gulch
• Basin: South Platte
• Title: FHAD - Upper Lena Gulch
• Date: 1/1/1993
• Prepared For: UDFCD
• Prepared By: Boyle Engineering Corporation
• Floodplain - Doc Type: Floodplain Report/Masterplan

FLOOD HAZARD AREA DEL NEA TION
Upper Lena Gulch
For ~~o FLOOD
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Flood Control District - :;;0
Urban Drainage and <( l)f) 0
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Jefferson County, City of Golden, City of Lakewood
/--- - URBAN DRAINAGE AND FLOOD
CONTROL DISTRICT BOUNDARY
SHEET INDEX GENERAL NOTES
- ALL HYDRAULIC CROSS-SECTION DATA IS MEASURED LEFT TO
COVER RIGHT LOOKING DOWNSTREAM.
PLAN AND PROFILE SHEET INDEX - 1 N
DISCHARGES AND VELOCITlES TABULATED IN FLOOD WAY TABLES
PLAN AND PROFILE SHEET INDEX - 2 ARE TOTAL FLOW AND MAIN CHANNEL VELOCITY UNLESS NOTED
STATION 450+00 TO 470+00 LENA GULCH O'THERWlSE. WHERE MAJOR FLOW SPLITS OCCUR, 'THE
2 STATION 425+00 TO 450+00 LENA GULCH DISCHARGES DOWN EACH FlOW PAlH ARE SHOWN ON lHE
DRAWINGS. WHERE CHANNEL FLOW IS SUPER-CRITlCAL
3 STATION 400+00 TO 425+00 LENA GULCH 'THE FLOOD ELEVATIONS ARE BASED ON CRITlCAL DEP'TH.
4 STATION 374+00 TO 400+00 LENA GULCH UPPER FLOODPLAIN LIMITS AND WATER SURFACE ELEVATIONS ARE BASEO
5 STATION 350+00 TO 374+00 LENA GULCH LENA ON CHANNEL AND ROAD CROSSING CONDITlONS AT 'THE TIME OF
6 STATION 327+00 TO 350+00 LENA GULCH GULCH PUBLICATION. lHE USER IS ADVISED TO CONTACT TliE URBAN
I BASIN DRAINAGE AND FlOOD CONTROL DISTRICT TO DETERMINE IF
7 STATION 303+00 TO 327+00 LENA GULCH MODIFlCATIONS OR REVISIONS TO 'THE INFORMATION PORTRAYED IN
8 STATION 275+00 TO 303+00 LENA GULCH 'THIS REPORT HAVE OCCURRED.
9 STATION 246+00 TO 275+00 LENA GULCH ALL GROUND ELEVATIONS ARE USGS DA ruM, MEAN SEA LEVEL.
10 STATION 219+00 TO 246+00 LENA GULCH
11 STATION 191+00 TO 219+00 LENA GULCH
12 STATION 163+00 TO 191+00 LENA GULCH 0
i
13 STATION 24+00 TO 40+05 PLEASANT VIEW TRIBUTARY '"
14 STATION 0+00 TO 24+00 PLEASANT VIEW TRIBUTARY LEGEND
15 STATION 0+00 TO 28+75 APEX GULCH
16 STATION 0+00 TO 28+75 APEX GULCH PLAN
17 DRAINAGE STRUCruRE CROSS-SECTIONS 100-YEAR FLOODPLAIN LIMITS
18 DRAINAGE STRUCTURE CROSS SECTIONS 455.43 f- I HYDRAULIC MODEL CROSS-SECTION
100- YEAR WA TER SURF ACE PROFILE
- - -- --- 10-YEAR WATER SURFACE PROFILE
~ 100-YEAR WATER SURFACE ELEVATION CONTOURS
MILES - CITY/COUNTY LIMIT BOUNDARIES
~....-t, 10 15 20
. , . I
0 5 10 15
KILOMETERS
VICINITY MAP
-
URBAN DRAINAGE AND FLOOD CONTROL DISTRICT FLOOD HAZARD AREA DELINEATION
JEFFERSON COUNTY, CITY OF GOLDEN, CITY OF LAKEWOOD UPPER LENA GULCH FLOODPLAIN DEUNEA TlON COVER

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