FLOOD10385

• County: Jefferson
• Community: Golden, Lakewood
• Stream Name: Upper Lena Gulch
• Basin: South Platte
• Title: Major Drainageway Planning - Upper Lena Gulch - Phase B Report
• Date: 3/1/1994
• Prepared For: UDFCD
• Prepared By: Boyle Engineering Corporation
• Floodplain - Doc Type: Floodplain Report/Masterplan

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ORA NAGEW A Y
Upper Le Gu

MAJOR

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na

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For

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ct

.

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Distr

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Contro

Flood

and

Drainage

Urban

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Lakewood

of

ty

.

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C

Golden

of

ty

.

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C

County

Jefferson

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COVER
PLAN AND PROFILE INDEX
PLAN AND PROFILE INDEX
STATION 450+00 TO 470+00
STATION 425+00 TO 450+00
STATION 400+00 TO 425+00
TO 400+00
TO 374+00

NOTE S

ALL HYDRAULIC CROSS-SECTION DATA IS MEASURED LEFT TO
RIGHT LOOKING DOWNSTREAM.

DISCHARGES AND VELOCITIES TABULATED IN CROSS-SECTIONS
ARE TOTAL DISCHARGE AND MAIN CHANNEL VELOCITY, RESPECTIVELY
UNLESS NOTED OTHERWISE. WHERE MAJOR FLOW SPLITS OCCUR,
THE DISCHARGES FOR EACH FLOW PATH ARE SHOWN ON THE
DRAWINGS. WHERE CHANNEL FLOW IS SUPER-CRITICAL
THE FLOOD ELEVATIONS ARE BASED ON CRITICAL DEPTH.

GENERAL

-
N

,

URBAN DRAINAGE AND FLOOD
CONTROL DISTRICT BOUNDARY

,

NDEX

SHEET

I

I

I,

FLOODPLAIN LIMITS AND WATER SURFACE ELEVATIONS ARE BASED
ON CHANNEL AND ROAD CROSSING CONDITIONS AT THE TIME OF
PUBLICATION. THE USER IS ADVISED TO CONTACT THE APPROPRIATE
LOCAL GOVERNMENT TO DETERMINE IF MODIFICATIONS OR
REVISIONS TO THE INFORMATION PORTRAYED IN TH.IS REPORT HAVE
OCCURRED.

LENA GULCH
LENA GULCH
LENA GULCH
LENA GULCH
LENA GULCH

SHEET
SHEET

UPPER
LENA
GULCH
BASIN

374+00
350+00
327+00

STATION
STATION
STATION

LEVEL.

FLOODPLAIN LIMITS-EXISTING
FLOODPLAIN LIMITS-WITH IMPROVEMENTS
CROSS-SECTION

ARE

ELEVATIONS ARE USGS DATUM,
ELEVATIONS SHOWN

SEA

UTILITIES WILL BE REQUIRED

MEAN

LEGEND

LOCA TlONS AND

00- YEAR
00- YEAR
HYDRAULIC MODEL

ALL GROUND

THE EXISTING UTILITY
APPROXIMA TE.
THE FIELD LOCATION OF ALL
DURING FINAL DESIGN.

---

455.43 I I

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TRIBUTARY
TRIBUTARY

TO 350+00 LENA GULCH
TO 327+00 LENA GULCH
TO 303+00 LENA GULCH
TO 275+00 LENA GULCH
TO 246+00 LENA GULCH
TO 219+00 LENA GULCH
TO 191+00 LENA GULCH
TO 40+05 PLEASANT VIEW
TO 24+00 PLEASANT VIEW
TO 28+75 APEX GULCH
TO 28+75 APEX GULCH PLAN
DRAINAGE STRUCTURE CROSS-SECTIONS
DRAINAGE STRUCTURE CROSS SECTIONS

STA TION 303+00
275+00
246+00
219+00
91+00
63+00
24+00
0+00
0+00
0+00

STA TlON
STATION
STATION
STA TlON
STATION
STATION
STATION
STATION
STATION

2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
8

I

I

I

I

I

WATER SURFACE PROFILE-EXISTING
WATER SURFACE PROFILE-WITH IMPROVEMENTS
BOUNDARIES

LIMIT

00- YEAR
00- YEAR
CITY/COUNTY
EXISTING GAS

---

----

- -Z'G-

DOUGLAS

I

I

LINE

EXISTING WATER LINE
EXISTING SANITARY SEWER
BURIED)

---,(',,--

MILES
10

ELECTRIC

EXISTING

8.8.-

20

5

5

o

I

EXISTING CULVERT

-

)E------1(

VICINITY MAP

I

COVER

BENCHMARK

FLOODPLAIN DELINEATION
AND
PROPOSED IMPROVEMENTS

~ LG-6

MAJOR DRAINAGEWAY PLANNING
UPPER LENA GULCH

URBAN DRAINAGE AND FLOOD CONTROL DISTRICT
JEFFERSON COUNTY, CITY OF GOLDEN. CITY OF LAKEWOOD

BOYL.E
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