Attachment C - Plan Design.pdf

Plum Bluff Part 2 EmErgEncy ProtEction gEorgE coiunty

USER TO ENTER SEEDING INFO

USER TO ENTER PRACTICES

USER TO ENTER SEEDING INFO

USER TO ENTER PRACTICES

USER TO ENTER INFORMATIONUSER TO ENTER INFORMATION

USER TO INSERT SHEET LIST TABLE

SAFETY REGULATIONS

ALL EXCAVATION AND METHODS OF CONSTRUCTION SHALL BE IN ACCORDANCE WITH THE

MARYLAND OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION (MOSHA) STANDARDS AS

SET FORTH IN THE LATEST VERSION OF THE CODE OF MARYLAND REGULATIONS

The Contractor/Owner is to notify the SOIL CONSERVATION DISTRICT at least 72 hours prior to construction to facilitate any scheduling, layout, or preliminary mobilization necessary to ensure proper construction inspection to enable appropriate certification of the project.

It is the Landowner's responsibility to obtain all County, State, and Federal permits that may be needed, and to maintain this structure and related regulations.

CONSTRUCTION NOTIFICATION

George

THERE WILL BE NO CHANGES IN SPECIFICATION, DIMENSIONS, OR

MATERIALS UNLESS APPROVED BY THE ENGINEER RESPONSIBLE FOR

THIS DRAWING. THE DRAWINGS ARE PREPARED COOPERATIVELY BY THE

NATURAL RESOURCE CONSERVATION SERVICE FOR THE NAMED

LANDOWNER.

CONSTRUCTION FOUND NOT IN ACCORDANCE WITH THESE DRAWINGS

AND SPECIFICATIONS SHALL VIOLATE THE COOPERATIVE AGREEMENT

AND ALL DRAWINGS, SPECIFICATIONS, AND QUANTITIES ESTIMATE SHALL

IMMEDIATELY BE RETURNED TO THE LOCAL NRCS OFFICE.

I CERTIFY THAT THIS DESIGN HAS BEEN EXPLAINED TO ME

BY A REPRESENTATIVE OF THE PROJECT ENGINEER

, AND I UNDERSTAND THE CONTENTS, ALL CONSTRUCTION

WILL BE DONE ACCORDING TO THESE PLANS AND

SPECIFICATIONS, I FURTHER UNDERSTAND THAT ALL

CONSTRUCTION WILL BE UNDER THE INSPECTION OF THIS

OFFICE.

OWNER/OPERATOR SIGNATURE DATE

CONTRACTOR'S SIGNATURE DATE

SIGNATURE DATE

INSPECTED BY

CONSTRUCTION APPROVAL

SCE Approval

SIGNATURE DATE

SIGNATURE DATE

GENERAL NOTES:

· PLEASE CONTACT THE PROJECT ENGINEER NORMAN PATTERSON 6019093525 AT LEAST 3

DAYS PRIOR TO CONSTRUCTION TO ARRANGE A PRE-CONSTRUCTION MEETING

· A CONSERVATION TECHNICIAN SHALL SET CUT/GRADE STAKES AT THE CONTRACTORS

REQUEST

USER TO UPDATE SEQUENCE AS NEEDED

CONSTRUCTION SEQUENCE:

1. Contact the Project Engineer at 6019093525 to arrange a pre-construction meeting

2. Contact miss utility at 811

3. Install upper sandbag diversion

4. Install upper dewatering basin

5. Install upper pump around device

6. Excavate area for footer stone and install footer stone

7. Install footer imbricated riprap, backfilling with #57 clean stone and geotextile fabric

8. Install next course of imbricated riprap, install final course when previous course has been backfilled with #57 stone and geotextile fabric

9. Backfill top course with topsoil and grade into existing bank

10. Install erosion control matting(jute) and shrubs on shoreline as indicated on the plan

11. Remove sediment controls and stabilize disturbed areas in upper section

12. Install lower sandbag diversion

13. Install lower dewaterwing device

14. Install lower pump around device

15. Follow same procedure as explained above in #6 - #10

16. Remove all sediment controls and stabilize all disturbed areas

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THE CONSERVATION PRACTICE(S) MEETS OR EXCEEDS NRCS STANDARDS AND SPECIFICATIONS

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VICINITY MAP

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UNIT

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PRICE

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CONTRACT

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ESTIMATE

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AMOUNT

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UNIT

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AMOUNT

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DOLLARS

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QUANTITIES

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ITEM

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FINAL PAY

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TOTAL

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AutoCAD SHX Text 5390.68

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PLUM BLUFF 2

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STREAMBANK PROTECTION

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PLAN VIEW

AutoCAD SHX Text George County, MS County, MSMS

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PLUM BLUFF 2

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STREAMBANK PROTECTION

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PLAN VIEW (2)

George County, MS County, MSMS

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AutoCAD SHX Text Rock Riprap Shall Be Gradation No____ Quality Designation "A" As Per IDOT Standard Specification.

AutoCAD SHX Text Backfill Trench With Soil And Compact To A Density Equal To Or Greater Than Surrounding Soil.

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SECTION

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ROCK RIPRAP GRADATION CHART

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GRADATION NO. 1

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STONE

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WEIGHT

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POUNDS

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STONE

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POUNDS

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CUMULATIVE

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PERCENT LIGHTER

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BY WEIGHT

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AutoCAD SHX Text Note: Spalls and rock dust that will pass a

AutoCAD SHX Text 3" sieve shall consist of not more

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ROCK RIPRAP KEY DETAIL

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NOT TO SCALE

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PLUM BLUFF 2

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LAYOUT W DOC FIELDS

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NOTES: 1. MATCH THE FINISHED GRADE OF THE CROSSING TO THE SLOPE AND ELEVATIONS OF THE THALWEG (LOW FLOW CHANNEL) OF THE EXISTING STREAMBED. FOLLOW THE EXISTING STREAMBED GRADE AS CLOSELY AS POSSIBLE. 2. IF BEDROCK IS PRESENT, FIELD ADJUST THE CROSSING WITH INPUT FROM THE NRCS TECHNICAL REPRESENTATIVE. THE CRUSHED AGGREGATE SURFACING AND BASE FILL IS NOT REQUIRED WHERE THE BEDROCK IS AT THE CORRECT BED ELEVATION FOR THE CROSSING. 3. USE WELL-GRADED STONE WITH A RANGE OF MATERIALS TO FILL VOIDS AND ALLOW COMPACTION (SEE BASE MATERIAL SIZE REQUIREMENTS). COMPACT BY ROLLING OVER SURFACE OF BASE WITH HEAVY EQUIPMENT USED IN CONSTRUCTION. 4. USE CLASS I, NON-WOVEN GEOTEXTILE FABRIC PER GEOTEXTILE SPECIFICATION. 5. SEED AND MULCH DISTURBED AREAS ABOVE BANKFULL FLOW ELEVATION, INCLUDING SIDE CUT SLOPES. SEE SEEDING SPECIFICATION. 6. LOCATE AT THE HEAD OF A RIFFLE AND IN A STRAIGHT, STABLE REACH OF STREAM AWAY FROM THE INFLUENCE OF MEANDERS. IF THAT IS NOT POSSIBLE, LOCATE IN THE FARTHEST UPSTREAM PORTION OF THE RIFFLE POSSIBLE, OR IN A STRAIGHT SHALLOW STREAM REACH. 7. CONSTRUCT DURING LOW FLOW ONLY. WHILE WORKING ON ONE SIDE OF STREAM, DIVERT FLOW TO THE OTHER SIDE. MINIMIZE DISTURBANCE TO STREAMBED.

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