4-APPENDIX E CONTRACT DRAWINGS - GENERAL PERMIT DRAWINGS.pdf

ALUMINUM BOX CULVERT

11'8" X 5'9" X 40.5 LF (SEE DETAIL)

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PROJECT PURPOSE:

THE PURPOSE OF THIS PROJECTS IS TO REPLACE AN EXISTING 4' ROUND CMP

CULVERT WITH A NEW 11'-8"-"X 5'9" ALUMINUM BOX CULVERT. THE EXISTING

CULVERT IS DETERIORATING AND UNDER SIZED. THIS IS CAUSING FLOODING

ISSUES . THE NEW CULVERT WILL PROVIDE ADDITIONAL FLOW CAPACITY,

ADEQUATE COVER OVER THE CULVERT AND HAVE AN ASSOCIATED RESTORED

STREAM BED TO FACILITY AQUATIC ORGANISM PASSAGE AND STREAM BED

CONTINUITY. ASSOCIATED WITH THIS PLAN IS A CHAPTER 105 WATER

OBSTRUCTION AND ENCROACHMENT GENERAL PERMIT REGISTRATION,

SPECIFICALLY A GP#11, FOR THE REPLACEMENT OF AN EXISTING WATER

OBSTRUCTION.

The soil that will be disturbed by this project is:

· KaB - Kedron Silt Loam

General Soil Characteristics:

Soils: Erosion Potential Frost Action Potential Topsoil Road Fill KaB poorly drained/high runoff High Unsuitable Variable

CHAPTER 93 STREAM CLASSIFICATION

All storm water run-off generated from this site is currently (and will continue to be) directed to Dotters Creek. This section has a Chapter 93 Receiving Watercourse designation of Exceptional Value - Cold Water Fisheries (EV-CWF) and is classified as supporting Migratory Fishes (MF).

Wetland Statement:

Steven Hawk of Keystone Consulting Engineers, Inc. has determined, through field verification, State and Federally Regulated Wetlands exist within the project site's limit of disturbance. This inventory for wetland conditions was conducted according to Federal and State guidelines as described in the Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Northcentral and Northeast Region, Version 2.0 as agreed to process for identifying and delineating wetlands in Pennsylvania. Wetland are shown in plan view.

SEQUENCE OF CONSTRUCTION:

AT LEAST 7 DAYS BEFORE STARTING ANY EARTH DISTURBANCE ACTIVITIES, THE CONTRACTOR

SHALL INVITE ALL CONTRACTORS INVOLVED IN THOSE ACTIVITIES, THE LANDOWNER, ALL

APPROPRIATE MUNICIPAL OFFICIALS, THE EROSION AND SEDIMENTATION CONTROL PLAN

PREPARER, AND A REPRESENTATIVE OF THE MONROE CONSERVATION DISTRICT TO A ON-SITE

PRE-CONSTRUCTION MEETING, ALSO AT LEAST 3 DAYS BEFORE STARTING ANY EARTH

DISTURBANCE ACTIVITIES, ALL CONTRACTORS INVOLVED IN THOSE ACTIVITIES SHALL NOTIFY THE PENNSYLVANIA ONE CALL SYSTEM INCORPORATED AT 1-800-242-1776 FOR BURIED UTILITY

LOCATIONS.

BELOW IS A GENERAL SEQUENCE OF CONSTRUCTION RELATIVE TO INSTALLATION OF EROSIONS

AND SEDIMENT CONTROL ASSOCIATED AND ASSOCIATED CONSTRUCTION STEPS. THE BELOW

SEQUENCE ASSUMES A BY-PASS PUMP, BY-PASSING IN-STREAM FLOWS AROUND THE ENTIRE

SECTION OF STREAM SECTION TO BE RESTORED. AT THE TIME OF CONSTRUCTION, DEPENDING

ON AVAILABLE RECOURSES, THE PROJECT CAN BE COMPLETED IN PHASES UNDER THE

DISCRETION OF THE TOWNSHIP ENGINEER AND MCCD.

1. INSTALL ALL COMPOST FILTER RUNS.

2. PROCEED ONLY WHEN STREAM BED MATERIAL IS STOCKPILED ON-SITE AND CULVERT IS

ASSEMBLED. PLACE COFFER DAM AND INSTALL PUMP. INSTALL PUMPED WATER FILTER

BAG.

3. PLACE ROCK FILTER ACROSS CHANNEL AS SHOWN ON DETAIL.

4. COMPLETE ROAD CUT AND REMOVE EXISTING CULVERT, OVER EXCAVATE FOR FOOTING

INSTALLATION.

5. INSTALL FOOTING PER SPECIFICATIONS.

6. IN CONJUNCTION WITH PREVIOUS STEP, EXCAVATE TO PREPARE FOR STREAM BED

MATERIAL PLACEMENT AND CHANNEL CONSTRUCTION. STOCKPILE EXCAVATED NATIVE

STREAMBED MATERIAL AS SHOWN ON THE PLAN. CONTACT TOWNSHIP ENGINEER TO

ASSESS STOCKPILED NATIVE MATERIAL.

7. WORKING FROM UPSTREAM, DOWNSTREAM. PLACE STREAM BED MATERIAL PER THE

SPECIFICATIONS SUPPLIED ON THIS SHEET (SEE STREAMBED MATERIAL PLACEMENT

NOTE), CONSTRUCTING THE PROPOSED RESTORED CHANNEL. INSTALL RIFFLE CRESTS

UP-SLOPE AND DOWN-SLOPE OF THE CULVERT PER THE ELEVATION SET ON THE PLAN.

8. INSTALL THE CULVERT AND ASSOCIATED HEADWALL AND WING WALLS PER THE

SPECIFICATION ON THE CULVERT INSTALLATION PLAN. COMPLETE FINAL GRADING

9. SOIL AND SEED ANY AREAS DISTURBED DURING THE CONSTRUCTION OF THE CULVERT

AND STREAM BED IN ACCORDANCE WITH THE PLANS AND SEEDING SCHEDULE.

REPLACE ANY EXISTING TOPSOIL, FROM THE STOCKPILE LOCATION, OR ADD TOPSOIL

FROM OFFSITE (IF NEEDED) TO OBTAIN A CONSISTENT 4" TOPSOIL THICKNESS. RAKE THE

TOPSOIL TO REMOVE ANY STONES AND TREAT IT WITH LIME AND FERTILIZER PRIOR TO

SEEDING AND MULCHING. AFTER PREPARING THE SOIL, IMMEDIATELY SEED THE

DISTURBED AREAS ACCORDING TO THE SEEDING CHART AS SHOWN ON THE PLANS.

ALL DISTURBED AREAS SHALL BE MATTED WITH NAG S75 SLOPE MATTING FOR

TEMPORARY STABILIZATION.

10. REMOVE COFFER DAM, PUMPS AND ROCK FILTER.

11. COMPLETE THE PAVING OF THE ROADWAY. STABILIZE, MULCH, AND SEED ALL

DISTURBED AREAS ADJACENT TO THE ROADWAY AREAS UPON COMPLETION.

12. THE CONTRACTOR SHALL REMOVE ALL THE TEMPORARY EROSION AND SEDIMENT

CONTROL MEASURES WHEN THE SITE IS PROPERLY STABILIZED. THE SITE WILL BE

CONSIDERED PROPERLY STABILIZED WHEN 70% COVER HAS BEEN ACHIEVED; ONLY AT

THIS TIME CAN THE EROSION AND SEDIMENT CONTROL MEASURES BE REMOVED.

At any time during construction operations when work on this project ceases, all disturbed areas shall be stabilized with a temporary grass seed.

0 5 10 20 40

( IN FEET )

1 inch = 10 ft.

GRAPHIC SCALE

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STANDARD CONSTRUCTION DETAIL #4-1

COMPOST FILTER SOCK

STANDARD CONSTRUCTION DETAIL #11-1

EROSION CONTROL BLANKET INSTALLATION

STANDARD CONSTRUCTION DETAIL #4-14

ROCK FILTER

STANDARD CONSTRUCTION DETAIL #3-16

PUMPED WATER FILTER BAG