DWR_2731751

• Document Date: 12/18/2014
• Document Type - Dam Safety: Report
• Division: 1
• Dam ID: 020615
• Subject: HAVANA STREET DAM - SEPT. 2013 DAM FAILURE FORENSIC INVESTIGATION
• DWR Send/Recipient: DAM SAFETY BRANCH - COLORADO DIVISION OF WATER RESOURCES

STAGE - STORAGE - DISCHARGE
WATER SURFACE STAGE STORAGE (AF) DISCHARGE (CFS)
OPERATING 5248 0 0
3
5249 35.05 11.00
172662.02
5250 76.78 41.00
2180069.98
5251 124.24 54.89
SPILLWAY 5251.4 146.47 56.54
172719.34
1
5252 176.73 131.94 3.75" BRASS CAP
5253 234.43 401.15
5254 297.91 820.03
5255 368.94 1386.72
DAM CREST 5255.4 399.69 1655.70
CONTROL POINTS
CONTROL POINT
NUMBER NORTHING EASTING
1 172529.47 2179566.89
2 172570.78 2179620.55
3 172615.10 2179683.13
4 172662.02 2179778.69
5 172709.79 2180069.98
6 172717.14 2180638.65
7 172718.62 2180739.73
8 172719.34
1
2180850.49
f' I
i
i
i
j
tengOverflow Channel _ 5240 ` REMOVE EXISTING 18" PIPE AND { CONTROL POINT TYP.
L
NEW 30" RC
STRUCTURE.
OUTLET
f '
EE
STRUCTURE, ILTER DIAPHRAGM, I
TABLE THIS ET
DERDRAIN AND LOW __ -_ _ _ -.._'^ _ -- -----5245- RESTORE EXISTING -_ - -.. _ - - --
5i545TAILWATERBASIN. SEE SHEET -DAM CREST __ _
HORIZONT AL
GRAVEL ACCESS ROAD - _ _:_CONTROL LINE.
f. - -- - - - _ - - ELEVATION = 5255.4 - - -- - - f/ r TO PRE - CONSTRUCTION _ _ _ _ . __ -- -_ -_ - -- -. _- _ _- _- 5250 ---- - -SEE TABLE ON THIS____...__ - -- - -- - -
CONDITION -- _
i
SHEETSEC[
TH=1 - - - - Ti°1 -2
5250 - -- -- - -- -- - _ _ -- - - -- - -- - -
g - - -- sting Access Roa - 5255 --..__-' - "_ .$`
1 I MONUMENT TYP. = =R =12 -
SEE TABLE THIS SHEET X
ba NG GAGING
STATI
i TALL
RESTOREINS ' REMOVED
O BE
ERODEDPROTECTIONPERDETAILREPLACEDBYRSlSLOPE
RETRO IT EXISTIN
SPILLWAY
J - i /, - _ ON SHEET 7SH
SEE SHEET 13` , - ` ro j i
i t r
J
55 % Existing Reservoir'
1 PROPOSED i
PERMANENT WATE
SURFACE= . CE = 248 4irk „"
r
r /
l 1
SEE SPIFFY 4 FOR
h A5-BUILT INFO ASSOCIATEDry
SQ _ h WITH DAM FMB. / f
rmanent Water Surface at
W _ 3 ime of Survey. Elevation ! / z"'
l'
arses Through The Year. I
RECORD DRAWING55.0
R NG
h %;
I '
v`
v July 9, 2012 t
THIS RECORD DRAWING HAS BEEN PREPARED, IN PART, BASED UPON
INFORMATION FURNISHED BY OTHERS. WHILE THIS INFORMATION IS BELIEVED '
@
EL•55.5 Ss Existing Concrete Spillway TO BE RELIABLE, MULLER ENGINEERING COMPANY, INC. CANNOT ASSURE ITS
g ; Crest Elevation = 525 1.4 '' ACCURACY, AND THUS IS NOT RESPONSIBLE FOR THE ACCURACY OF THIg
RECORD DRAWING OR FOR ANY ERRORS OR OMISSIONS WHICH MAY HAVE
I / Xr \ v
BEEN INCORPORATED INTO IT AS A RESULT. THOSE RELYING ON THIS RECORD `+
DRAWING ARE ADVISED TO OBTAIN INDEPENDENT VERIFICATION OF ITS I /
1
ACCURACY BEFORE APPLYING IT FOR ANY PURPOSE.
dr
1
f ESTORE EXISTING
l IGRAVELACCESSROAD Dotl
TO PRE - CONSTRUCTION
tiaCONDITION
o(q
g DESIGNED: DATE: MULLER ENGINEERING CO., INC.
SEO # C -1991
SITE PLAN WITH SHEET
4 DRAWN: DATE:
a CHECKED: DATE: 777SOVINW"wOR GD:100 URBAN DRAINAGE AND FLOOD CONTROL DISTRICT HAVANA STREET DAM IMPROVEMENTSREVISED: DATE: W DCOLD W-4- SPILLWAY MODIFICATIONS 12
REVISED: DATE: PROJECT NO. 07 -030.08
F -12
MONUMENT LEGEND
ASQ CHISELED SQUARE N: 172477.86
E: 2179537.07 PROJECT DATUM:
Z: 5251.4 PROJECT COORDINATE SYSTEM IS BASED ON SURVEY
ARM4 3.75" BRASS CAP N: 172647.79 CONTROL COORDINATES FOR THE ROCKY MOUNTAIN
E: 2179708.04 ARSENAL AS OF OCTOBER 28, 1997. NAD 27 COLORADO
Z: 5254.6 NORTH ZONE, NGVD 1929.
ARM3 3.75" BRASS CAP N: 172702.94
E: 2179898.94
Z: 5254.7
ASEC NO. 5 REBAR IN N: 172733.15
CONCRETE MARKED "2" E: 2180172.58
Z: 5253.4
f' I
i
i
i
j
tengOverflow Channel _ 5240 ` REMOVE EXISTING 18" PIPE AND { CONTROL POINT TYP.
L
NEW 30" RC
STRUCTURE.
OUTLET
f '
EE
STRUCTURE, ILTER DIAPHRAGM, I
TABLE THIS ET
DERDRAIN AND LOW __ -_ _ _ -.._'^ _ -- -----5245- RESTORE EXISTING -_ - -.. _ - - --
5i545TAILWATERBASIN. SEE SHEET -DAM CREST __ _
HORIZONT AL
GRAVEL ACCESS ROAD - _ _:_CONTROL LINE.
f. - -- - - - _ - - ELEVATION = 5255.4 - - -- - - f/ r TO PRE - CONSTRUCTION _ _ _ _ . __ -- -_ -_ - -- -. _- _ _- _- 5250 ---- - -SEE TABLE ON THIS____...__ - -- - -- - -
CONDITION -- _
i
SHEETSEC[
TH=1 - - - - Ti°1 -2
5250 - -- -- - -- -- - _ _ -- - - -- - -- - -
g - - -- sting Access Roa - 5255 --..__-' - "_ .$`
1 I MONUMENT TYP. = =R =12 -
SEE TABLE THIS SHEET X
ba NG GAGING
STATI
i TALL
RESTOREINS ' REMOVED
O BE
ERODEDPROTECTIONPERDETAILREPLACEDBYRSlSLOPE
RETRO IT EXISTIN
SPILLWAY
J - i /, - _ ON SHEET 7SH
SEE SHEET 13` , - ` ro j i
i t r
J
55 % Existing Reservoir'
1 PROPOSED i
PERMANENT WATE
SURFACE= . CE = 248 4irk „"
r
r /
l 1
SEE SPIFFY 4 FOR
h A5-BUILT INFO ASSOCIATEDry
SQ _ h WITH DAM FMB. / f
rmanent Water Surface at
W _ 3 ime of Survey. Elevation ! / z"'
l'
arses Through The Year. I
RECORD DRAWING55.0
R NG
h %;
I '
v`
v July 9, 2012 t
THIS RECORD DRAWING HAS BEEN PREPARED, IN PART, BASED UPON
INFORMATION FURNISHED BY OTHERS. WHILE THIS INFORMATION IS BELIEVED '
@
EL•55.5 Ss Existing Concrete Spillway TO BE RELIABLE, MULLER ENGINEERING COMPANY, INC. CANNOT ASSURE ITS
g ; Crest Elevation = 525 1.4 '' ACCURACY, AND THUS IS NOT RESPONSIBLE FOR THE ACCURACY OF THIg
RECORD DRAWING OR FOR ANY ERRORS OR OMISSIONS WHICH MAY HAVE
I / Xr \ v
BEEN INCORPORATED INTO IT AS A RESULT. THOSE RELYING ON THIS RECORD `+
DRAWING ARE ADVISED TO OBTAIN INDEPENDENT VERIFICATION OF ITS I /
1
ACCURACY BEFORE APPLYING IT FOR ANY PURPOSE.
dr
1
f ESTORE EXISTING
l IGRAVELACCESSROAD Dotl
TO PRE - CONSTRUCTION
tiaCONDITION
o(q
g DESIGNED: DATE: MULLER ENGINEERING CO., INC.
SEO # C -1991
SITE PLAN WITH SHEET
4 DRAWN: DATE:
a CHECKED: DATE: 777SOVINW"wOR GD:100 URBAN DRAINAGE AND FLOOD CONTROL DISTRICT HAVANA STREET DAM IMPROVEMENTSREVISED: DATE: W DCOLD W-4- SPILLWAY MODIFICATIONS 12
REVISED: DATE: PROJECT NO. 07 -030.08
F -12