Plans.pdf

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D S pw://COE-NAEPWP01CON.nae.ds.usace.army.mil:coe-naepwp01con.nae.ds.usace.army.mil/Documents/Military Installations/New Boston Air Force Station, NH/Dam Repairs - Greentree & Seavey Ponds/30000 - Planning & Engineering & Design/40000 Design Products/CAD_BIM

B2

SCALE: 1" = 20' 20' 40'0

SITE PLAN - SEAVEY POND DAM

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IMPACT 200 SF

TEMPORARY WETLAND

FILTER SOCK

SILT FENCE/COMPOST

(SEE SHEET S-101)

EXISTING CONCRETE WEIR

STRUCTURE TO REPLACE

PROPOSED CONCRETE WEIR

IMPACT 150 SF

WETLANDS

TEMPORARY

(SEE SHEET S-701, PHOTO C8)

EXISTING OUTLET

(SEE SHEET S-101)

EXISTING 24" DIAMETER CMP

PROPOSED 24" HDPE TO REPLACE

COFFERDAM

PROPOSED SAND BAG

HEADWALL

PROPOSED

(SEE SHEET S-701, PHOTO A8)

INLET EMBANKMENT

(SEE SHEET S-701, PHOTO A4)

OUTLET EMBANKMENT

(APPROXIMATE)

EXISTING ACCESS ROAD

STAGING/STOCKPILE AREA

APPROXIMATE CONSTRUCTION

(SEE SHEET S-701, PHOTO A1)

EXISTING INLET

(SEE NOTE 2)

DRY HYDRANT AND CONCRETE PAD

REMOVE AND DISPOSE OF EXISTING

LOAMED AND SEEDED.

ANY UNSUITABLE OR EXCESS MATERIAL WILL REMAIN IN THE STOCKPILE AND BE

3. ALL EXCAVATED MATERIAL SHALL BE STOCKPILED AND REUSED.

SHALL BE REMOVED FROM THE SITE TO AN APPROVED LOCATION.

2. THE DRY HYDRANT AND PIPING, THE CULVERT AND EXISTING CONCRETE STRUCTURES

EROSION IN ACCORDANCE WITH SPECIFICATION SECTION 31 00 00 EARTHWORK.

STOCKPILE MATERIAL TO HAVE A 1V:3H SLOPE. STABILIZE THE SPOIL STOCKPILE FROM

1. ALL MATERIAL REMOVED FROM THE EARTHEN DAM SHALL BE STOCKPILED.

SEAVEY POND NOTES:

(APPROXIMATE)

EXISTING TREE LINE

E6EPDLPT

Typewritten Text

LPT

INV. EL. 727.82

TWIN CULVERTS

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INV. EL. 724.97

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INV. EL. 725.57

18" CULVERT

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INV. EL. 726.38

18" CULVERT

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INV. EL. 727.31

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