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Existing Culvert
Scale 1" = 20'
Location
SILT FENCE.
SOIL EROSION & SEDIMENT CONTROL NOTES
I Unnecessary clearing of any vegetation or ground cover will be avoided. Any disturbed
area left unvegetated for more than five days Will be covered with a hay or straw mulch
to minimize erosion material.
2. Following final grading, all disturbed areas will be covered with 6" loam and seeded as
described below. If any seeded areas are disturbed or damaged, reseeding will occur as
soon as possible.
Seed Mixture Seeding Rate
by Wt. Lbs./Ac,
Red Fescue 75 100
Colonial Bentgrass-Exeter 5
Perennial Ryegrass 5
Birdsfoot Trefoil -Empire 15
If final grading occurs past October 15, disturbed areas will be seeded with winter rye-
grass and mulched with hay or straw at a rate of 1.5 - 2 tons per acre.
3. Any proposed vegetation which has not survived one growing season VL411 be replaced.
4. All suitable material excavated for roadway construction to be used elsewhere on site.
Unsuitable material will be removed from the site and deposited in a suitable location.
5. All construction activity to occur between March 15 and October 15 to avoid adverse
impacts on intermittent stream flow.
10X I" X3'
Stake
FLOW Bales placed
Perpendicular to Flow
Compacted
Backfill
STAKED HAYBALE DETAIL
SCALE: N.T.S.
Tree)Line
Rip -Rap Stone
along steep slopes
Inlet PN ection
Flared Inlet
Be
Spil
EIE
HAY BALE INSTALLATION
1. Bales shall be placed in a single row, lengthwise,
oriented perpendicular to the expected flow, with
ends of adjacent bales tightly abutting one another.
2. Bales shall be entrenched and backfilled. A trench
shall be excavated the width of a bale and the
length of the proposed barrier to a minimum
depth of4 inches.
3. Each bale shall be securely anchored by at least
two (2) stakes.
4. The gaps between bales shall be wedged with straw
to prevent water from escaping between the bales.
5. The barrier shall be extended to such a length
that the bottoms of the end bales are higher in
elevation than the top of the lowest middle bale
to assure that sediment laden run-offwill flow
either through or over the barrier, but not
around it.
HAY BALE INSTALLATION
Inspection shall be made after each storm
event and repair or replacement shall be made
promptly as needed.
2. Cleanout of accumulated sediment behind the
bales is necessary if 1/2 of the original
height of the bales becomes filled in with
sediment.
7
Erosi Control S t Fence
WL141 SodStock
Pile Area
fV1 1LVU1 LV
Er si Control Silt Fence
and 1
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Hay Bales in FlAw Path
Silt
r
w Path
Proposed Triple
18" Chia Culvert
Location
Scale 111 - - 101
a
TES:
THIS SURVEY AND MAP HAS BEEN PREPARED PURSUANT TO THE
REGULATIONS OF CONNECTICUT SATE AGENCIES SECTIONS 20-300b-1
THROUGH 20-300b-20 AND THE "STPNDARDS FOR SURVEYS AND MAPS IN THE
STATE OF CONNECTICUT" AS ADOPTED BY THE CONNECTICUT ASSOCIATION
OF LAND SURVEYORS, INC. ON SEPTEMBER 26, 1996. BOUNDARY
INFORMATION ON THIS PLAN WAS COMPILED FROM OTHER MAPS, RECORD
RESEARCH OR OTHER SOURCES 0: INFORMATION. IT IS NOT TO BE
CONSTRUED AS HAVING BEEN OBT,kINED AS THE RESULT OF A FIELD SURVEY,
AND IS SUBJECT TO SUCH CHANGE AS AN ACCURATE FIELD SURVEY MAY
DISCLOSE. BOUNDARY INFORMATI)N SHOW HEREON IS SHOWN FOR
ORIENTATION PURPOSES ONLY.
TYPE OF SURVEY: TOPOGRAPHIC SJRVEY
roPOGRAH IC ACCURACY CLASS: 7-2`
3OUNDARY DETERMINATION CATEGORY: COMPILATION MAP
HORIZONTAL ACCURACY CLASS: I'D
2. NORTH ARROW IS BASED ON REFERENCE NO. 2.
3. ELEVATIONS AND CONTOURS SHOIVN HEREON ARE DERIVED FROM FIELD
MEASUREMENTS TAKEN 7/26/2014 SND ARE BASED ON AN ASSUMED DATUM.
REFERENCES:
1, MAP ENTITLED "CHARTER OAK SUBDIVISION, PROPERTY OF ALEJO ORTEGA,
RAYMOND HILL RD, MONTVILLE, CCNN.", SCALE. 1"40', DATE: MARCH 4, 1974,
PREPARED BY BERNARD F. STONE 3t ASSOC.
2. CONNECTICUT DEPARTMENT OF TRANSPORTATION STATEWIDE OVERFLIGHT,
2004 ORTHOMETRIC PHOTOS AND LiDAR DATA.
Scale 1"=1,000'
Design and Construction Notes:
This plan depicts the installation of three 18" culverts to replace two undersized
culverts. New culverts are sized for the 25 year storm event. Wetlands delineated
by Eric Davison Davison Environmental. This plan was modified to incorporate
comments from Town of Montville Engineer, CLA Engineers letter by Robert Russo
dated 29 Sept. 2014
or1. Construction shou be done when large rainfall events are not expected.
2. Install erosion control silt fence and hay bales
3. Then install outlet protection velocity dissipater.
4. Excavate and remove 15" & 18" CMP culverts
5. Excavate and construct 13'x 20' scour hole.
6. Install bedding sand for new culverts.
7. Install new 18" HDPE culverts, back fill and compact.
8. Install culvert flared inlet and outlet
9. Install inlet protection
10. Hydroseed all excavated areas and stabilized with loose hay
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cj-
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cIrD WrF WL2
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N
a
TES:
THIS SURVEY AND MAP HAS BEEN PREPARED PURSUANT TO THE
REGULATIONS OF CONNECTICUT SATE AGENCIES SECTIONS 20-300b-1
THROUGH 20-300b-20 AND THE "STPNDARDS FOR SURVEYS AND MAPS IN THE
STATE OF CONNECTICUT" AS ADOPTED BY THE CONNECTICUT ASSOCIATION
OF LAND SURVEYORS, INC. ON SEPTEMBER 26, 1996. BOUNDARY
INFORMATION ON THIS PLAN WAS COMPILED FROM OTHER MAPS, RECORD
RESEARCH OR OTHER SOURCES 0: INFORMATION. IT IS NOT TO BE
CONSTRUED AS HAVING BEEN OBT,kINED AS THE RESULT OF A FIELD SURVEY,
AND IS SUBJECT TO SUCH CHANGE AS AN ACCURATE FIELD SURVEY MAY
DISCLOSE. BOUNDARY INFORMATI)N SHOW HEREON IS SHOWN FOR
ORIENTATION PURPOSES ONLY.
TYPE OF SURVEY: TOPOGRAPHIC SJRVEY
roPOGRAH IC ACCURACY CLASS: 7-2`
3OUNDARY DETERMINATION CATEGORY: COMPILATION MAP
HORIZONTAL ACCURACY CLASS: I'D
2. NORTH ARROW IS BASED ON REFERENCE NO. 2.
3. ELEVATIONS AND CONTOURS SHOIVN HEREON ARE DERIVED FROM FIELD
MEASUREMENTS TAKEN 7/26/2014 SND ARE BASED ON AN ASSUMED DATUM.
REFERENCES:
1, MAP ENTITLED "CHARTER OAK SUBDIVISION, PROPERTY OF ALEJO ORTEGA,
RAYMOND HILL RD, MONTVILLE, CCNN.", SCALE. 1"40', DATE: MARCH 4, 1974,
PREPARED BY BERNARD F. STONE 3t ASSOC.
2. CONNECTICUT DEPARTMENT OF TRANSPORTATION STATEWIDE OVERFLIGHT,
2004 ORTHOMETRIC PHOTOS AND LiDAR DATA.
Scale 1"=1,000'
Design and Construction Notes:
This plan depicts the installation of three 18" culverts to replace two undersized
culverts. New culverts are sized for the 25 year storm event. Wetlands delineated
by Eric Davison Davison Environmental. This plan was modified to incorporate
comments from Town of Montville Engineer, CLA Engineers letter by Robert Russo
dated 29 Sept. 2014
or1. Construction shou be done when large rainfall events are not expected.
2. Install erosion control silt fence and hay bales
3. Then install outlet protection velocity dissipater.
4. Excavate and remove 15" & 18" CMP culverts
5. Excavate and construct 13'x 20' scour hole.
6. Install bedding sand for new culverts.
7. Install new 18" HDPE culverts, back fill and compact.
8. Install culvert flared inlet and outlet
9. Install inlet protection
10. Hydroseed all excavated areas and stabilized with loose hay