HomeMy WebLinkAboutagenda.apz.19971007 44
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-SEE NOTE 6
0 = 48"ROUNDED ROCK
IN TOPSOIL
PROPOSED FACE OF SLOPE 0 1:1
L jo - 48 "" ROUNDED ROCK BEDDED
IN TOPSOIL
- SEE TOTE J6
(SEE NOTE If7
1,0 7 (0
, IRAFI 70O (O/' APPROVED
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EQUAL) GGEMEX'TILE FFARRIC,
196(L)
EXTEND MIN, 1 V�' Cil-1
DEPRESS EXISTING
STREAM BED 12 op
ROCK
OR TA B/L /ZAT/O/V BANK ST,4c31LIZRTIOhf
B/O RIPRAP DETAIL SL4&LBOULDERS
JAG 80ULDERS _ Nrs
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NOTES:`
I , EXISTING CONDITIONS CONTOURS WERE -SURVEYED BY ALPINE SURVEYS O
ARCH 14, 1997 AND REPRESENT BANK EROSION DUE TO HIGH FLOWS IN THE
SPRING OF 1995 AND POSSIBLY CHANGES TO TIE BANK CONDITIONS UPSTREAM
OF THE SITE
.2. PROPOSED GRADES .SEEK TO RESTORE THE RIVER BANK TO CONDITIONS PRIOR
TO THE SPRING OF 1995.
J. FLOOD ELEVATION INFORMATION HAS BEEN ESTIMATED RELATIVE TO THE
FEDERAL EMERGENCY MANAGEMENT AGEENCY4S° FLOOD INSURANCE RATE MAP
FOR ASPEN DATED JUKE 4, 1987 SINCE TXE SURVEY BASE MAP UTILIZE`
EL A TIONS RELA TI 'E TO AN ARBITRARY DA TU , WE HAVE EST11 A TELL TIME
:'TLOOD A AR-' ELEVATION BASED OAV THE PROJECT SITE LC ATIC ON THE
U��" D 7
y
ELL A T7 N 200 (ALPINE SURD) - �- ELEVATION 788,5, f_EA A , WATER LEVEL
DESIGNATIONS INCLUDE LOW WATER (LW), ORDINARY HIGH WATER (?HW) AND
THE FE A 100--YEAS' FLOOD ELEVATION.
4. EQUIPMENT T ACCESS TO THE PROJECT .SITE WILL REQUIRE CROSSING THE CITY
OF ASPENS H RRON PARK, ,SITE. ACCESS IS TO BE COORDINATED WITH THE CITY
OF ASPEN PARKS DEPARTMENT AND WORK THEY WILL. BE DOING TO DREDGE
-- PONDS WITHIN THE PARK THE CONTRACTOR FOR THE CREEKTREE PROJECT
SMALL ANTICIPATE CONSTRUCTING A TEMPORARY ACCESS PLATFORM THROUGH
THE PARK FOR EQUIPMENT ACCESS COMPRISING 314 INCH PLYWOOD PANELS
(FOR LOAD DISTRIBUTION) PLACED OVER A 6 INCH CLASS 6 BASE COURSE" MAT
FOR A DISTANCE OF APPROXIMATELY 150 FEET TO GET FROM THE PARK WORK
ZONE TO THE SOUTHEAST EDGE OF THE ROARING FORK RIVER (ACROSS FROM
THE PROJECT SITE). CONTRACTOR S ALL ALSO ANTICIPATE REMOVAL OF THE
TEMPORARY ACCESS PLATFORM AND CLEANUP FOLLOWING CONSTRUCTION OF
THE STREA BANK STABILIZATION.
. THE CREEKTREE SUBDIVISION RIVERBANK REPAIR STABILIZA T ION PROJECT IL. L
PLACE APPROXI ATEL Y 1.2 ODIC YARDS OF MATERIAL SOIL 8i0RIP-RAP
CF, EEKTREEA TERIAL PER LINEAR FOOT (L. F.) OF S TREA BAI K (APPROXIMA TEL Y 0. 65 C. Y.
r sut atVISION L.F. BELOW OH . TOTAL. PROJECT REQUIREMENT OVER 45 LINEAR FEET OF
BANK IS APPROXI A TEL Y 545 C. Y
6. THE FINISH SLOPE IS TO BE TOPSOIL,ED AND SEEDED WITH LOCAL. RIPARIAN
SPECIES PER THE COL ORAL?O DIVISION OF WILDLIFE SLOPE AREAS ABOVE THE
RIP —RAP ZONE MAY 8E CORED WITH A TEMPORARY EROSION CONTROL
Q� BLANKET SUCH AS EXCELSIOR STANDARD PLUS (OR APPROVED EQUAL) TO
�- c:::a PREVENT EROSION UNTIL THE PLANT COVER IS ESTABLISHED ISHED OPENINGS ARE TO
a Qf`' ' E CREATED IN THE EROSION CONTROL BLANKET FOR PLANTING NATI E
WILLOWS SEDGE GRASSES AND REED DOG OSIER W . OOD SEEDLINGS.
7. A DOUBLE ROW OF NATIVE TYPE PE WILLOWS GAL. + SHALL BE PLANTED WITHIN
-� FEET HORI. ONTAL L, Y OF THE ORD NARY HIGH, A TEr? ' fi E (OH, / OF THE
ROARIMG FORK ROE
....... ...VICINITY MAP. , A TEMPORARY .SILT' FENCE COMPRISING MIRAR 100 (OR APPROVED EQUAL)
fAv. I. . SHALL BE PLACED Ill SHALLOW WATER BE# EEN THE MAIN RIVER CHANIVEL AND
THE WORK ZONE FOR THE DURATION OF THE RE:RAIR / STABILIZATION WORK
7�95 5ANK REPAIR AND STA81LIZATION PLAN HAS BEEN PREPARED IN GENERAL
COUPLIANCE WITH THE REQUIREMENTS OF THE US ARMY CORPS OF ENGINEERS
RECIONAL,GENERAL PERMIT NUMBER GPOJ7 FOR STREAM STABILIZATION PROJECTS IN
WESTERN COLORADO WITH THE EXCEPRON OF THE MAXIMUM SLOPE STEEPNESS
LlUt'lATION eSLOPE
AMTCH ADJACENT STREAUSANK AREAS NOT DAMAGED BY EROSION. RIP —RAP
MA76RIAL COMPRISING ROUNDED ROCK HAS BEEN SIZED TO WITHSTAN
D HIGH FL OW
CIAY HA OND,�P E., �SG , INC __.� �._ � � _