Lake_Ottawa_Specifications.doc

US Department of Agriculture

Forest Service

Region 9, Eastern Region

Forest Development Project

LAKE OTTAWA

ABA COMPLIANT FISHING PIER

RECREATION SITE IMPROVEMENT PROJECT

The Ottawa National Forest

Watersmeet Ranger District

Watersmeet, Michigan May 16, 2018 Prepared by:

Mary E. Brown, RLA Landscape Architect, Technical Services T

LAKE OTTAWA ABA COMPLIANT FISHING PIER

RECREATION SITE IMPROVEMENT PROJECT

SPECIFICATIONS

Division Section Title

Pages

DIVISION 03 – CONCRETE WORK

033000

CAST-IN-PLACE CONCRETE

DIVISION 05 – METALS WORK

055000

METAL FABRICATIONS

061000

CARPENTRY

DIVISION 31 – EARTHWORK WORK

310000

EARTHWORK

310001

AGGREGATE

311100

SITE CLEARING

Copyright 2002 and 2005 by The American Institute of Architects (AIA)

Exclusively published and distributed by Architectural Computer Services, Inc. (ARCOM) for the AIA

DIVISION – 03

CONCRETE WORK

SECTION 033000 - CAST-IN-PLACE CONCRETE

GENERAL

SECTION REQUIREMENTS

Submittals: Concrete mix designs and laboratory test reports.

Comply with ASTM C 94; ACI 301, "Specification for Structural Concrete"; ACI 117, "Specifications for Tolerances for Concrete Construction and Materials"; ACI 318 “Building Code Requirements for Structural Contracts”; CRSI's "Manual of Standard Practice;" ACI 305 “Hot Weather Concreting”; ACI 306.1 “Standard Specification for Cold Weather Concreting”; and ACI 304R-90 “Guide for Measuring, Mixing, Placing and Transporting Concrete”. In the ACI publications consider advisory provisions mandatory as though the word “shall” had been substituted for “should” whenever “should” appears.

PRODUCTS

MATERIALS

Deformed Reinforcing Bars: ASTM A 615/A 615M, Grade 60.

Plain Steel Wire: ASTM A 82, as drawn.

Steel Welded-Wire Fabric: ASTM A 185, flat sheets. Rolls will not be accepted.

Portland Cement: ASTM C 150, Type I or II.

Fly Ash: ASTM C 618, Type C or F.

Aggregates: ASTM C 33, uniformly graded.

Air-Entraining Admixture: ASTM C 260.

Chemical Admixtures: ASTM C 494, water reducing and accelerating.

MIXES

Proportion normal-weight concrete mixes to provide the following properties:

Minimum Compressive Strength at 28 days: ASTM C 39: 4000 psi

Slump Limit: 4 inches at point of placement. ASTM C 143

Air Content: 5.5 to 7.0 percent for concrete exposed to freezing and thawing, 2 to 4 percent elsewhere.

EXECUTION

CONCRETING

Construct formwork and maintain tolerances and surface irregularities within ACI 117 limits of Class A for concrete exposed to view and Class C for other concrete surfaces.

Accurately position, support, and secure reinforcement.

Place concrete in a continuous operation and consolidate using mechanical vibrating equipment.

Protect concrete from physical damage, premature drying, and reduced strength due to hot or cold weather during mixing, placing, and curing according to ACI specifications.

Formed Surface Finish: Smooth-formed finish for concrete exposed to view, coated, or covered by waterproofing or other direct-applied material; rough-formed finish elsewhere.

Slab Finishes: Nonslip-broom finish to exterior concrete platforms, steps, and ramps.

Cure formed surfaces by moist curing for at least seven days.

Begin curing concrete slabs after finishing. Keep concrete continuously moist for seven days.

Contractor will engage an independent testing Agency to perform tests and to submit test reports. Perform a Slump test, an Air Content test and a Minimum Compressive Strength at 28 days test during each pour.

Protect concrete from damage. Repair surface defects in formed concrete and slabs.

END OF SECTION 033000

DIVISION – 05

METALS WORK

Copyright 2002 and 2005 by The American Institute of Architects (AIA)

Exclusively published and distributed by Architectural Computer Services, Inc. (ARCOM) for the AIA

SECTION 055000 -METAL FABRICATIONS

Verify that Section titles referenced in this Section are correct for this Project's Specifications; Section titles may have changed.

PART 1 - GENERAL

1.1

SUMMARY

A.

This Section includes miscellaneous metal materials, including all metal fasteners.

B.Adjust list below to suit Project.

Retain subparagraph below if recycled content is required for LEED-NC or LEED-CI Credits MR 4.1 and MR 4.2.

PART 2 - PRODUCTS

See Editing Instruction No. 1 in the Evaluations for cautions about naming manufacturers and products.

Edit this Article with other Part 2 articles in which manufacturers and products are named. See Division 01 Section "Product Requirements" for an explanation of the terms "Available Products," "Products," "Available Manufacturers," and "Manufacturers" and the effect these terms have on "Comparable Product" and "Product Substitution" requirements.

2.1

METALS

A.

Metals General: Provide materials, without blemishes, Hot dipped galvanized or epoxy coated. Welding shall conform to AWS requirements. Galvanizing or epoxy coating shall be done after welding to protect metals from rusting.

Retain first subparagraph below if recycled content is required for LEED-NC or LEED-CI Credits MR 4.1 and MR 4.2. The Steel Recycling Institute indicates that hollow structural shapes and steel plates are made by the basic oxygen furnace method, which typically has 23 percent postconsumer recycled content and 1.5 percent preconsumer recycled content, and rolled structural shapes are made by the electric arc furnace method, which typically has 57.5 percent postconsumer recycled content and 6.5 percent preconsumer recycled content.

Select Type 316L in first subparagraph below if required for corrosive environments.

Coordinate subparagraph and list below with Part 2 "Manufacturers" Article. Retain "Available" for nonproprietary and delete for semiproprietary specifications.

Products in list below have abrasive material metallically bonded to steel by a proprietary process.

Round steel tubing and pipe are sized differently. Tubing is designated by OD and wall thickness. Pipe is designated by nominal pipe size and weight or schedule number. See Evaluations.

First subparagraph below describes typical component of metal channel framing systems such as that manufactured by Unistrut Corporation.

2.2

FASTENERS

Usually select Type 304 in first paragraph below; select Type 316 if required for corrosive environments.

A.

General: zinc-plated fasteners with coating complying with ASTM B 633, Class Fe/Zn 5, at exterior walls. Select fasteners for type, grade, and class required.

2.3

MISCELLANEOUS MATERIALS

Retain paragraph above or paragraph and associated subparagraphs below. Paragraph above specifies a typical primer for painted finishes that provides minimum protection to steel. Paragraph below specifies a typical primer for high-performance coating.

Coordinate subparagraph and list below with Part 2 "Manufacturers" Article. Retain "Available" for nonproprietary and delete for semiproprietary specifications.

Delete first paragraph below if no galvanized fabrications.

A.

Galvanizing Repair Paint: SSPC-Paint 20, high-zinc-dust-content paint for re-galvanizing welds in steel.

B.

Non-shrink, Nonmetallic Grout: Factory-packaged, non-staining, non-corrosive, nongaseous grout complying with ASTM C 1107.

2.4

FABRICATION

A.

General: Preassemble items in the shop to greatest extent possible. Use connections that maintain structural value of joined pieces.

1.

Cut, drill, and punch metals cleanly and accurately. Remove burrs and ease edges. Remove sharp or rough areas on exposed surfaces.

Delete first paragraph below if prefabricated building columns are specified in Division 05 Section "Structural Steel Framing."

Insert UL design number here or indicate on Drawings if required.

Delete subparagraph below if not required.

Retain first paragraph below for angles supported from concrete frame. Angles connected to structural-steel framing are specified with that work in another Division 05 Section.

Delete subparagraph below if not required.

Delete subparagraph below if inserts are specified in Division 03 Section "Cast-in-Place Concrete."

Retain first paragraph and subparagraph below for structural-steel door frames built into masonry or concrete walls and not attached to structural-steel building frame. Door frames connected to structural-steel framing are specified with that work in another Division 05 Section.

ANSI A14.3 specifies minimum design requirements for ladders and safety cages.

First subparagraph below can be deleted if spacing is shown on Drawings. ANSI A14.3 minimum siderail spacing is 16 inches (406 mm); minimum spacing per ASME A17.1 is 12 inches (305 mm).

ANSI A14.3 requires safety cages for ladders longer than 24 feet (7.3 m) unless a ladder safety system is provided. 1996 BOCA Code and OSHA regulations require cages for ladders longer than 20 feet (6 m).

Retain subparagraph below if required; delete if bollards are concrete filled.

Retain subparagraph below if required for mounting bollards on structural slab or on existing pavement.

Delete subparagraph below if sleeves are not used.

Paragraph below is an example of pipe protection for parking garages and other locations where pipes are subject to damage by vehicles.

Delete first paragraph and subparagraphs below if bicycle racks are not required; if retaining, revise to suit Project. A suitable means for securing bicycles, together with changing/shower facilities, for 5 percent of building occupants is required for LEED (Version 2.0) Credit SS 4.2.

Retain one of six options in first subparagraph below with any option above. If retaining "As indicated" option, show thicknesses on Drawings.

Coordinate paragraph and subparagraphs below with Division 05 Section "Metal Stairs" and Division 08 Section "Door Hardware."

Coordinate first subparagraph and list below with Part 2 "Manufacturers" Article. Retain "Available" for nonproprietary and delete for semiproprietary specifications.

Coordinate first subparagraph and list below with Part 2 "Manufacturers" Article. Retain "Available" for nonproprietary and delete for semiproprietary specifications.

Select subparagraph above or below.

Delete subparagraph above or below if not required.

2.5

FINISHES

A.

Comply with NAAMM's "Metal Finishes Manual for Architectural and Metal Products" for recommendations for applying and designating finishes. Finish metal fabrications after assembly.

B.

Steel and Iron Finishes:

1.

Hot-dip galvanize items as indicated to comply with ASTM A 123/A 123M or ASTM A 153/A 153M as applicable.

Retain or revise first two subparagraphs below to suit Project service conditions of installed work. Insert other exposures and preparation requirements where applicable. Refer to SSPC's painting manual. Both subparagraphs apply to locations that would normally remain dry in service.

PART 3 - EXECUTION

3.1

INSTALLATION

A.

General: Perform cutting, drilling, and fitting required for installing metal fabrications. Set metal fabrications accurately in location, with edges and surfaces level, plumb, and true.

1.

Fit exposed connections accurately together. Weld connections that are not to be left as exposed joints but cannot be shop welded. Do not weld, cut, or abrade surfaces of exterior units that have been hot-dip galvanized after fabrication.

2.

Provide anchorage devices and fasteners where metal fabrications are required to be fastened to in-place construction.

Delete three paragraphs and associated subparagraphs below not applicable to Project. Insert others where needed to specify requirements applicable to a specific item not covered under general installation requirements above.

Retain one or more of three subparagraphs below for anchoring bollards.

Delete subparagraph below if bollards have metal caps.

B.

Touch up surfaces and finishes after erection.

1.

Galvanized Surfaces: Clean field welds, bolted connections, and abraded areas and repair galvanizing to comply with ASTM A 780.

END OF SECTION 055000

DIVISION – 06

WOOD, PLASTIC, AND COMPOSITES WORK

Copyright 2003 and 2005 by The American Institute of Architects (AIA)

Exclusively published and distributed by Architectural Computer Services, Inc. (ARCOM) for the AIA

SECTION 061000 - CARPENTRY

Verify that Section titles referenced in this Section are correct for this Project's Specifications; Section titles may have changed.

PART 1 - GENERAL

1.1

SUMMARY

A.

This Section includes the construction of:

1. One (1) fishing pier that conforms to ABA (Architectural Barriers Act) Guidelines. Additional details are indicated on the Drawings.

B.

Construction work requires sealed wood pilings installation as shown on drawings.

C.

Carpentry work requires specific measurement and trade skill set to meet required finished elevations. Sections 310000, 310001, 311100 and 329200 provide additional requirements for this portion of the work.

D.

Surface of each carpentry work shall be flush with the finished grade and shall properly meet with the fishing pier landing area as indicated on the Drawings.

E.

Contractor shall submit shop drawings for permanent walkway to fishing pier, showing dock construction and connection to shoreline, framing members, railing system and connections, wood treatments, fabrication of the floating pier sections, connecting elements between perpendicular and in-line floating dock sections and the articulating hinge for the moveable section of dock between the permanent structure and the floating sections. Drawings shall be submitted in electronic (AutoCAD) form or as clearly drawn hand sketches.

F.

Dock Ramp Lift Systems: While not detailed on the drawings because of the varying type of possible lift systems, the contractor shall provide and install a lifting mechanism/system for raising the one end of the 10 foot section of non- floating dock which is the transitioning section between the floating dock and permanent dock sections. The lifting mechanism shall be capable of lifting this 10 foot dock section a minimum of 36 inches above the waterline. The proposed system shall be structurally sound and able to secure the raised dock section in place throughout the extended winter period. The lifting system shall use non-electric mechanical winch(es) capable of being operated by hand or other approved methods. The contractor may attach the framing/support system to the wood piles. The contractor shall submit shop drawings for approval of the proposed system in sufficient detail for the government to understand its operations and the materials being proposed.

1.2

QUALITY ASSURANCE

A.

Provide the Government with delivery tickets for each specified wood products and material for each delivery.

B.

Perform carpentry work with a licensed, bonded and insured carpenter. Carpenter shall have a minimum of 5 years of practical experience in specified carpentry work and skill in dock and piling installation.

C.

Conform to all industry standards for piling work and finish carpentry construction, specifications, and practices.

D.

Follow all manufacturers’ recommendations for product installations, specifically for pilings work, decking support structures and decking installation.

PART 2 - PRODUCTS

2.1

WOOD PRODUCTS, GENERAL

A.

Lumber: No. 2 grade or better, southern yellow pine or approved equal, DOC PS 20 and applicable rules of grading agencies indicated. If no grading agency is indicated, provide lumber that complies with the applicable rules of any rules-writing agency certified by the ALSC Board of Review. Provide lumber graded by an agency certified by the ALSC Board of Review to inspect and grade lumber under the rules indicated.

B.

Lumber shall be free of bark, rot, grooves and imperfections over ½” in dimension.

C.

Wood members shall have grade, trade and specified marks.

D.

Wood members shall be free of loose knots, cracks, shakes, or stamps.

Select only first option in subparagraph below if authorities having jurisdiction require grade stamps on all materials.

Revise subparagraph below if rough lumber is acceptable for all work.

Delete paragraph and subparagraph below if engineered wood products are not used.

2.2

WOOD-PRESERVATIVE-TREATED LUMBER

Delete this Article if not applicable. See Evaluations for discussion of formulations.

A.

Preservative Treatment by Pressure Process: AWPA C2, except that lumber that is not in contact with the ground and is continuously protected from liquid water may be treated according to AWPA C31 with inorganic boron (SBX). Arsenic shall not be a component of the treatment products.

See Evaluations for information about treatment chemicals.

B.

Kiln-dry lumber after treatment to a maximum moisture content of 19 percent.

Select first option in paragraph below and delete subparagraphs if total treatment is required; otherwise, select second option and retain appropriate subparagraphs.

C.

Application: Treat all lumber used on the site.

Retain subparagraph below if Project includes wood adjacent to roofing or waterproofing.

Retain applicable items below. Insert other items that require treatment but are not likely to be indicated on Drawings.

Delete this Article if not applicable.

2.3

DIMENSION LUMBER FRAMING

Select one of two options in paragraph below, or delete paragraph if green lumber is acceptable in all thicknesses. See Evaluations.

A.

Maximum Moisture Content: 19 percent.

Select one of three options for grade in first paragraph below; grades are listed in order of decreasing quality (and cost).

If retaining paragraph below, select one of three options for grade or revise to suit Project; verify with structural requirements.

Edit list below. Species groups are listed in order of decreasing strength (extreme fiber in bending).

Species group below includes "Southern pine" above; delete above if retaining below.

Paragraph below is an example of a performance requirement that can be used instead of paragraph above. If retaining, select or revise values and insert other properties to suit structural requirements of Project.

Retain paragraph and subparagraphs below for high-quality appearance for exposed work. See Evaluations.

B.

Exposed Exterior Framing Indicated to Receive a Stained or Natural Finish: Provide material hand-selected for uniformity of appearance and freedom from characteristics, on exposed surfaces and edges, that would impair finish appearance, including decay, honeycomb, knot-holes, shake, splits, torn grain, and wane.

1.

Species and Grade: As indicated above for load-bearing construction of same type.

Retain subparagraph above or retain (or insert) one or more species groups below. First 10 species groups below are listed in order of decreasing strength (extreme fiber stress in bending).

2.4

MISCELLANEOUS LUMBER

A.

General: Provide miscellaneous lumber indicated and lumber for support or attachment of other construction, including the following:

1.

Blocking.

2.

Nailers.

Delete subparagraph below if prefabricated metal units are used. Prefabricated metal units may still require blocking or nailers.

B.

For items of dimension lumber size, provide Construction or No. 2 grade lumber with 19 percent maximum moisture content of any species.

Retain paragraph and subparagraphs below for furring, grounds, and nailing strips if required, and for truss bracing specified by reference to this Section.

2.5

SEALED ROUND LOG WOOD PILING PRODUCTS

A.

All sealed round log wood pilings shall be southern yellow pine or approved equal, at least 10” in diameter, products and installation shall complies with industry standards for structural integrity and longevity. Length of pilings to be varied as shown on drawings.

Suggested Possible Source: American Pole and Timber

Eric Lincoln, Sales Manager

Office: 713-434-8008 www.PoleAndTimber.com www.AmericanTimberTruss.com www.AmericanPoleAndTimber.com

2.6 RECYCLE PLASTIC WOOD LUMBER, GENERAL

A Fishing pier walkway decking, fishing pier platform decking, railing and hand-railing shall be made of 2x6 recycled plastic wood lumber, color to be approved by the Government. Lumber shall be secured to pressure treated wood joists and support railing posts with vandal-resistant decking screws or bolts in accordance with manufacture’s specification or recommendation as indicated by the manufacturer.

B.

Installation to follow and as shown on drawings and as recommended by manufacturer.

C.

Quality to comply with industry standard(s).

NOTE: Submit product sample(s) for government’s approval prior to procurement and installation.

2.7

FASTENERS

A.

General: Provide fasteners of size and type indicated that comply with requirements specified.

1.

Where rough carpentry is exposed to weather, in ground contact, pressure-preservative treated, or in area of high relative humidity, provide fasteners with hot-dip zinc coating complying with ASTM A 153/A 153M.

Standard in first paragraph below covers power-driven staples, nails, P-nails, and allied fasteners.

B.

Power-Driven Fasteners: NES NER-272.

C.

Bolts: Steel bolts complying with ASTM A 307, Grade A with ASTM A 563 hex nuts and, where indicated, flat washers.

2.8

METAL FRAMING ANCHORS AND CLIPS

See Editing Instruction No. 1 in the Evaluations for cautions about naming manufacturers and products. If naming manufacturers or products, retain one of three subparagraphs and list of manufacturers below. Refer to Division 01 Section "Product Requirements."

A.

Provide the following manufacturers products or comparable products:

1.

Simpson Strong-Tie Co., Inc.

2.

USP Structural Connectors.

If retaining first option in first paragraph below, indicate design loads for metal framing anchors on Drawings.

B.

Galvanized Steel Sheet: Hot-dip, zinc-coated steel sheet complying with ASTM A 653/A 653M, G60 coating designation.

PART 3 - EXECUTION

3.1

INSTALLATION

A.

The constructed fishing pier is to be barrier free to the public Architectural Barrier Free Act (ABA) and Forest Service Outdoor Recreation Accessibility Guidelines (FSORAG).

B.

The Government shall stake general locations only. The Contractor shall stake detail and site specific locations in the field for Contracting officer review and approval prior to the start of any work. The government shall have latitude to alter or adjust locations as needed to best fit the exact fishing pier locations to site specific conditions.

C.

Securely attach carpentry work to substrate by anchoring and fastening as indicated on the Drawings and as recognized by Industry Standards.

D.

Set carpentry to required levels and lines, with members plumb, true to line, cut, and fitted. Fit carpentry to other construction; scribe and cope as needed for accurate fit.

E.

Rout smooth all corners as shown on drawings.

F.

Provide blocking as necessary for mounting hardware.

G.

Make tight connections between framing members and install fasteners without splitting the wood.

H.

Provide all framing members with size, space and configuration shown on the Drawings.

Delete paragraph below if engineered wood products are not used.

Delete first paragraph below if metal framing anchors are not used.

I.

Metal Framing Anchors: Install metal framing to comply with manufacturer's written instructions.

J.

Bolts shall not protrude more than 1” beyond the nut on any framing member.

K.

Do not splice structural members between supports, unless otherwise indicated.

L.

Comply with AWPA M4 for applying field treatment to cut surfaces of preservative-treated lumber. Paint all drilled bolt holes and exposed and cut ends areas with two coats of copper naphtenate solution containing a minimum of 2% copper metal, or an approved equal preservative.

Retain one of six subparagraphs below, with or without subparagraph above, as required to comply with requirements of Project and local codes.

END OF SECTION 061000

DIVISION – 31

EARTH WORK

SECTION 310000 - EARTHWORK

PART 1 - GENERAL

1.1 SECTION REQUIREMENTS

A. This section specifies excavation, backfill, and grading for fishing pier landing, as shown on drawings, area including disposal of unsuitable material.

1.2 EXISTING UNDERGROUND UTILITIES

1.3 QUALITY ASSURANCE

A. Quality control is the responsibility of the Contractor. Any testing required to verify materials meet the specifications shall be conducted by an independent Testing Agency hired and paid for by the Contractor.

PART 2 - PRODUCTS AND EXECUTION

2.1 MATERIALS

A. Backfill and Fill: Backfill and fill material shall meet the Unified soil classification of GW, GP, GM, SW or SP Backfill and Fill material shall be approved by the COR prior to placement. Visual Classification consistent with requirements within ASTM D 2488 will be permitted (laboratory testing is not required).

B. Base Course Material shall meet MDOT specifications. (MDOT 22A or 23 A)

PART 3 - EXECUTION

3.1 EARTHWORK

A. Prior to beginning work, the Government shall validate and approve locations in which the Contractor proposes to install the fishing pier landing as shown on drawings.

B. The Contractor shall salvage, stockpile and re-use topsoil, when available.

C. Backfill: Place in maximum 12-inch lifts and compact thoroughly (at least two passes per lift with a 200 pound mechanical rammer type tamper) until visible deformation of the layer ceases.

D. All excess excavated materials shall be removed from the site and disposed of at a location approved by the Government. Construction debris, merchantable timber, concrete, metals and other manufactured components and garbage shall be removed from Government property and disposed of lawfully.

E. After the backfill has been completed, all disturbed areas shall be finished to a uniform grade, blending with the original contours and existing surface types, except above trenches where backfilling is indicated on the drawings.

END OF SECTION 310000

Subgrade material will be executed, prepared, and compacted using Missouri Department of Transportation’s 2004 Missouri Standard Specification Book for Highway Construction and its Supplemental Specifications, Section 203 Roadway and Drainage ExcavationCopyright 2003 by The American Institute of Architects (AIA)

Exclusively published and distributed by Architectural Computer Services, Inc. (ARCOM) for the AIA

SECTION 310001 - AGGREGATES

PART 4 - GENERAL

4.1 SUMMARY

A. This Section includes placing aggregate materials as indicated on the Drawings, grading and compacting crushed aggregate prior to placing and compacting aggregate surfacing material.

4.2 QUALITY ASSURANCE

A. Quality Control/Quality Assurance will be per MDOT.

PART 5 - PRODUCTS AND EXECUTION

5.1 AGGREGATES

A. Crushed Aggregate, MDOT 22A or 23A; supplied, executed and compacted according to MDOT Specifications.

END OF SECTION 310001

SECTION 311100 - SITE CLEARING AND GRUBBING

PART 6 - GENERAL

6.1 SECTION REQUIREMENTS

A. Traffic: Minimize interference with occupied or used facilities during site-clearing operations.

B. The limits of clearing and grubbing shall be held to the minimum required to install the fishing pier and the landing area. The clearing limits are a maximum of 10 feet beyond the earthwork areas, unless indicated on the Drawings and/or approved in writing by the Government. To-be-Saved trees within the work limits will be flagged by the Government.

C. All indicated site clearing limit must be flagged and approved by the Forest Service prior to any clearing and grubbing operations.

D. Grubbing: Within the limits of the cut areas, grubbing shall be performed to a minimum depth of 12 inches (450 mm) below the finished earth grade of the proposed fishing pier landing area. The areas below the natural ground surface shall be grubbed to a depth necessary to remove all stumps, roots, buried logs and other objectionable material.

E. Do not begin site-clearing operations until temporary erosion and sedimentation control, such as silt fencing, filter strips or turbidity curtains are in place. Comply with all local, state, and federal laws for water quality conservation.

PART 7 - EXECUTION

7.1 PREPARATION

A. Preservation of vegetation and native soil in the area is important. Re-route around obstructions such as trees when feasible. Protect site improvements to remain from damage. Restore damaged improvements to condition existing before start of site clearing.

B. Limit Lake edge/bank disturbance, clearing of vegetation or downed timber to that which is absolutely necessary for construction purposes.

C. Install and maintain erosion and sediment controls to prevent discharge from the site.

D. Locate perimeter protection to filter sediment for sheetwash downslope of all disturbed areas where sediment has the possibility of discharge into water sources (ie.silt fences).

E. Utilize measures to trap sediment (ie. turbidity curtain) when working on a riverbank or in stream control.

F. Physically screen riparian areas located down slope of construction zones with sediment controls such as silt fences, filter strips, or turbidity curtains.

G. Monitor sediment controls after rains and maintain for the duration of the project.

H. Remove all sediment protection devices from the site within 30 days of ending the construction unless determined to be needed beyond the construction period for stabilization purposes.

I. Comply with all local, state, and federal laws for water quality conservation.

7.2 SITE CLEARING

A. Remove obstructions, stumps, brush, roots, shrubs, grass, and other vegetation to permit installation of new construction.

B. Disposal of all stumps, slash, debris and merchantable timber shall be done off Government property. Burning waste materials on-site is not permitted.

END OF SECTION 311100

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