Wall_Creek_AOP-FSSS.docx

FOREST SERVICE

SUPPLEMENTAL SPECIFICATIONS

FOR

Wall Creek Culvert

(ROAD NO. 2542E - M.P. 0.15)

U.S.D.A. Forest Service, Region 1 Idaho Panhandle National Forests Bonners Ferry Ranger District Boundary County, Idaho

Prepared by:

GREAT WEST ENGINEERING

2501 Belt View Drive Helena, MT 59604

Wall Creek Culvert (Road No. 2542E – M.P. 0.15)

FOREST SERVICE SUPPLEMENTAL SPECIFICATIONS

TABLE OF CONTENTS

ii

PREFACE

Delete all but the first paragraph and add the following:

The Forest Service, US Department of Agriculture has adopted FP-03 for construction of National Forest System Roads.

101 – TERMS, FORMAT, AND DEFINITIONS

101.01 Meaning of Terms.

Add the following:

Delete all references to the TAR (Transportation Acquisition Regulations) in the specifications.

101.03 Abbreviations.

Add the following to (a) Acronyms:

AFPA

MSHA

NIST

NESC

WCLIB

American Forest and Paper Association Mine Safety and Health Administration National Institute of Standards and Technology National Electrical Safety Code West Coast Lumber Inspection Bureau

Add the following to (b) SI Symbols:

101.04 Definitions.

Delete the following definitions and substitute the following:

Bid Schedule--The Schedule of Items.

Contractor--The individual or legal entity contracting with the Government for performance of prescribed work. In a timber sale contract, the contractor is the “purchaser”.

Culvert--No definition.

Right-of-Way--A general term denoting (1) the privilege to pass over land in some particular line (including easement, lease, permit, or license to occupy, use, or traverse public or private lands), or (2) Real property necessary for the project, including roadway, buffer areas, access, and drainage areas.

Add the following:

Adjustment in Contract Price--“Equitable adjustment,” as used in the Federal Acquisition Regulations, or “construction cost adjustment,” as used in the Timber Sale Contract, as applicable.

Change--“Change” means “change order” as used in the Federal Acquisition Regulations, or “design change” as used in the Timber Sale Contract.

Design Quantity--“Design quantity” is a Forest Service method of measurement from the FS-96 Forest Service Specifications for the Construction of Roads and Bridges. Under these FP specifications this term is replaced by the term “Contract Quantities”.

Forest Service--The United States of America, acting through the Forest Service, U.S. Department of Agriculture.

Neat Line--A line defining the proposed or specified limits of an excavation or structure.

Pioneer Road--Temporary construction access built along the route of the project.

Purchaser--The individual, partnership, joint venture, or corporation contracting with the Government under the terms of a Timber Sale Contract and acting independently or through agents, employees, or subcontractors.

Protected Streamcourse--A drainage shown on the plans or timber sale area map that requires designated mitigation measures.

Road Order--An order affecting and controlling traffic on roads under Forest Service jurisdiction. Road Orders are issued by a designated Forest Officer under the authorities of 36 CFR, part 260.

Schedule of Items--A schedule in the contract that contains a listing and description of construction items, quantities, units of measure, methods of measurement, unit price, and amount.

Utilization Standards--The minimum size and percent soundness of trees described in the specifications to determine merchantable timber.

Add Figure 101-1—Illustration of road structure terms:

Figure 101-1—Illustration of road structure terms.

102 – BID, AWARD, AND EXECUTION OF CONTRACT

102 Bid, Award, and Execution of Contract Delete Section 102 in its entirety.

103 – SCOPE OF WORK

Deletions Delete all but subsection 103.01 Intent of Contract.

The project consists of the removal of an existing culvert and replacement with a new 13’-0” span by 6’-9” rise steel structural plate arch culvert on a concrete footing foundation. The culvert is located on Forest Road No. 2542E at the Wall Creek crossing. Improvements consist of, but are not limited to: structure excavation, excavation and reshaping of the stream channel, placement of streambed material, placement of in-stream cross-vane structures, installation of precast concrete footings with stemwalls, placement of riprap, installation of the culvert structure, embankment and excavation of the roadway approaches, and road surfacing.

All in stream work must be accomplished between July 15 to March 1.

The project is located in the Bonners Ferry Ranger District of the Idaho Panhandle National Forests, approximately 15 miles Northeast of Bonners Ferry, Idaho (Section 9, Township 63 North, Range 2 East). Refer to the location map on the title sheet of the plans.

104 – CONTROL OF WORK

104 Control of Work.

Delete sections 104.01, 104.02, and 104.04.

Add the following subsection:

104.06 Use of Roads by Contractor

The Contractor is authorized to use roads under the jurisdiction of the Forest Service for all activities necessary to complete this contract, subject to the limitations and authorizations designated in the Road Order(s) or described in the contract, when such use will not damage the roads or national forest resources, and when traffic can be accommodated safely.

105 – CONTROL OF MATERIAL

105.02 Material Sources.

Add the following before the first paragraph.

Sources have been designated for this project as follows:

Crushed Aggregate Source Commercial Source – The Contractor shall source crushed aggregate. All material must be approved by the CO before placement.

Roadway Embankment & Backfill Source – Commercial Source – The Contractor may use suitable onsite material from structure excavation and roadway excavation for embankment construction. Additional material shall be obtained from Commercial Source All material must be approved by the CO before placement.

Waste Site (Government Furnished Site) – A waste site for excess or unsuitable material will be located by the CO within 2 miles of the site on National Forest lands. All other materials designated for removal and disposal must be disposed of away from National Forest lands per FSSS Section 203.05.

Riprap Source – Commercial Source

Cross-Vane and Fish Rest Stop Rock Source – Government Furnished – Contractor may salvage onsite rock for use on these projects.

Coarse Granular Backfill – Commercial Source

Approved Material Stockpile Site – The Contractor will be allowed to stockpile material, including riprap, crushed aggregate, and miscellaneous structure components at the site adjacent to the existing roadway. Materials must be stockpiled in such a manner as to avoid damage to any trees at the project site and must be placed above the ordinary high water mark of the stream. Provide the CO 72 hours advance notification prior to stockpiling any materials at the construction sites.

Add the following to section (b) Contractor-located sources:

Prior to any pit development or use of materials, the Contractor shall provide to the CO a State certification that the pit site is free of noxious weed as listed on the "All States Noxious Weeds List”.

106 – ACCEPTANCE OF WORK

106.07 Delete

Delete subsection 106.07.

107 – LEGAL RELATIONS AND RESPONSIBILITY TO THE PUBLIC

107.05 Responsibility for Damage Claims.

Delete the entire subsection.

107.06 Contractor’s Responsibility for Work.

Delete the following from the first paragraph.

“except as provided in Subsection 106.07”

107.09 Legal Relationship of the Parties.

Delete the entire subsection:

107.10 Environmental Protection.

Add the following:

Design and locate equipment repair shops, stationary refueling sites, or other facilities to minimize the potential and impacts of hazardous material spills on Government land.

Before beginning any work, submit a Hazardous Spill Plan. List actions to be taken in the event of a spill. Incorporate preventive measures to be taken, such as the location of mobile refueling facilities, storage and handling of hazardous materials, and similar information. Immediately notify the CO of all hazardous material spills. Provide a written narrative report form no later than 24 hours after the initial report and include the following:

· Description of the item spilled (including identity, quantity, manifest number, and other identifying information).

· Whether amount spilled is EPA or state reportable, and if so whether it was reported, and to whom.

· Exact time and location of spill including a description of the area involved.

· Containment procedures.

· Summary of any communications contractor had with news media, Federal, state and local regulatory agencies and officials, or Forest Service officials.

· Description of clean-up procedures employed or to be employed at the site including final disposition and disposal location of spill residue.

When available provide copies of all spill related clean up and closure documentation and correspondence from regulatory agencies.

The Contractor is solely responsible for all spills or leaks that occur during the performance of this contract. Clean up spills or leaks to the satisfaction of the CO and in a manner that complies with Federal, state, and local laws and regulations.

108 – PROSECUTION AND PROGRESS

108 Delete Delete Section 108 in its entirety.

109 – MEASUREMENT AND PAYMENT

109 Deletions Delete the following entire subsections:

109.06 Pricing of Adjustments.

109.07 Eliminated Work.

109.08 Progress Payments.

109.09 Final Payment.

109.02 Measurement Terms and Definitions.

(b) Contract quantity.

Add the following:

Contract quantities will be adjusted only when there are errors in the original design of 15% or more.

Change the following:

“(b) Cubic yard” to “(c) Cubic yard”.

Add the following Subsection:

109.10 Methods of Measurement

One of the following methods of measurement for determining final payment is DESIGNATED IN THE SCHEDULE OF ITEMS for each PAY ITEM:

(a) Actual Quantities (AQ). These quantities are determined from measurements of completed work.

(b) Contract Quantities (CQ). As defined in 109.02 (b) and supplemented above.

151 – MOBILIZATION

151.01 Description

Add the following at the end of the last sentence:

Noxious Weed Control Requirements:

All construction equipment to be used at the job site shall be cleaned and certified free of noxious weeds and their seeds prior to entrance on to forest lands, whether they are owned, leased or borrowed by the Contractor or any subcontractors. “Construction equipment” does not include personal vehicles or support equipment that remains on the main travel route.

Cleaning shall occur off forest land.

Construction equipment shall be visually inspected by the COR and each one certified in writing to be reasonably clean and weed free. Inspections will take place at a forest administrative site with the Contractor providing at least 24 hours notice. The location of the administrative site is to be agreed upon in advance between the COR and the Contractor or Subcontractor. Equipment is expected to proceed directly to the job site following the inspection and to not leave the designated weed management district wherein the job site exists.

Certification shall remain valid for each identified piece of equipment for the duration of the specified project and only as long as the equipment remains at the job site or within the designated weed management district. Equipment leaving the designated weed management district will need to be recertified as weed free before being allowed to return to the job site.

151.03 Payment

Include all costs associated with the bridge shoring and cleaning of equipment in the unit price for Mobilization.

152 – CONSTRUCTION SURVEY AND STAKING

152.03 Survey and Staking Requirements.

Conduct all construction staking under the direction of a licensed professional engineer or land surveyor who is closely associated and familiar with construction staking.

153 – CONTRACTOR QUALITY CONTROL

Add the following.

153.07. Project Submittals

At a minimum the contractor shall provide project submittals as shown on the below Submittal Log. Submittal requirements are listed in the Standard Specifications, Supplemental Specifications, and Plans.

Submittal Log

Pay Item(s)

/Drawings Additional Specification References

FSSS 157.03

157.09

Certification

Certification

FSSS 703.03, Drawings

Certification

Certification

Certification

Approval

FSSS 622.02

155 – SCHEDULES FOR CONSTRUCTION CONTRACTS

155 Delete Delete Section 155 in its entirety.

156 – PUBLIC TRAFFIC

156.03 Accommodating Traffic During Work.

Delete the following from the last paragraph:

According to Subsection 106.07(b)

Delete the first paragraph and replace with the following:

Accommodate traffic according to the requirements set forth below, MUTCD, and Section 635. Submit a traffic control plan for acceptance at least 30 days before intended use.

Add the following project specific requirements:

The Contractor will be allowed to close Road No. 2542E at the Wall Creek Culvert site to thru traffic for a maximum of 12 days including no more than 2 weekends. It is the responsibility of the Contractor to schedule delivery of materials, equipment and all necessary supplies to the sites, to ensure that the culvert can be substantially completed within the specified contract time. The Contractor shall give the C.O. at least two weeks advanced written notice prior to any road closure. The Contractor shall be responsible for providing, installing, maintaining, and removal of warning signs and type 3 barricades required for the road closure period in accordance with MUTCD as submitted and approved in the traffic control plan. At the Contractors written request, traffic delays up to one hour will be approved should the project work necessitate short traffic delays outside the closure period.

All in stream work must be accomplished between July 15 to March 1.

Contractor shall provide and install one road closed ahead sign for the duration of the project. The road closed sign is to be placed at the start of Road No. 2542E.

ROAD CLOSED

AHEAD

XX MILES

Note: Sign to have orange background with minimum of 4” black letters.

Delete the following from the last sentence of the last paragraph:

according to Subsection 106.07(b)

156.08 Traffic and Safety Supervisor.

Delete this subsection in its entirety.

156.10 Measurement and payment.

Delete this subsection in its entirety and replace with the following:

Do not measure Public Traffic for payment. Compensation for this item shall be incidental to Mobilization.

157 – SOIL EROSION CONTROL

157.02 Materials.

Add the following:

Provide bales, wattles, logs, in-stream sediment trapping devices, and rolls from a certified noxious weed free source.

157.03 General.

Delete the first two paragraphs and replace with the following:

Submit an Erosion Control Plan detailing permanent and temporary control measures to minimize erosion and sedimentation during and after construction in accordance with the plans and storm water permits. Do not modify the type, size, or location of any control without approval. Submit the erosion control and dewatering plan proposals at least 7 days before operations begin to the CO for approval.

Reflect in the Erosion Control Plan special concerns and measures necessary to protect resources and government improvements. Include:

(a) The construction activities and sequence of implementation relating to specific erosion control measures.

(b) The location and type of permanent controls to be implemented during construction.

(c) The location and type of temporary controls to be implemented during construction.

(d) For work in stream channels with running water, provide a detailed dewatering plan.

(e) For work in stream channels without flowing water describe level of ground and vegetative disturbance and measures to reduce potential sediment delivery.

(f) Description of the monitoring plan.

Add the following to the third paragraph:

Upon completion of construction at the site, remove all temporary erosion control devices, dewatering materials and equipment from Government property and reclaim all disturbed areas.

203 – REMOVAL OF STRUCTURES AND OBSTRUCTIONS

203.05 Disposing of Material.

Modify this subsection as follows:

(a) Remove from project. Add the following:

All materials designated for removal become property of the Contractor and are to be disposed of by removing off of National Forest Lands in accordance with all local, state, and federal requirements.

(b) Burn. Delete this section.

(c) Bury. Delete this section.

Add the following:

(e) Placing Slash on Embankment Slopes. Place construction slash on completed embankment slopes or scatter as directed by the CO to reduce soil erosion. Place construction slash as flat as practicable on the completed slope. Do not place slash on embankment slopes closer than 2 feet, slope distance, from the road surface. Priority for use of available slash is for: (1) through fills; (2) insides of curves; and (3) ditch relief outlets. All remaining material may be disposed of at the designated waste site or as approved by the CO.

204 – EXCAVATION AND EMBANKMENT

204.11 Compaction.

Delete and replace with the following:

Layer Placement (Roller Compaction) Method. Place material by end dumping to the minimum depth needed for operation of spreading equipment. Adjust the moisture content of the material to obtain a mass that will not visibly deflect under the load of the hauling and spreading equipment. Operate compaction equipment over the full width of each layer until visible deformation of the layer ceases. Make at least six complete passes.

204.14 Disposal of Unsuitable or Excess Material.

Delete the text of the first paragraph and substitute the following:

Dispose of unsuitable or excess material at designated sites or as directed by the CO.

208 – STRUCTURE EXCAVATION AND BACKFILL FOR SELECTED MAJOR STRUCTURES

208.02 General.

Delete Structural Backfill and Add the Following:

Backfill 704.03

208.04 General.

Add the following:

Use all suitable material in the construction of the roadway embankment and for structural backfill. Field drain and dry excessively wet material that is otherwise suitable for embankment before placement. Place and shape unsuitable or excess material in the designated sites or as directed by the CO.

208.08 Dewatering.

Delete the subsection and add the following:

Submit a dewatering plan according to Section 157.03.

Construct diversion prior to performing any excavation and according to Section 157.09. Construct diversions using water tight, non-eroding methods. Employ settling basins or other methods so that muddy water is not returned to stream. Install, operate, and remove diversions in a manner that minimizes erosion and sedimentation.

208.11 Compacting.

Add the following:

Compact structural backfill material to at least 95 percent of the maximum density to a depth of 2 feet over the new culvert. Compact backfill material above this point per FSSS 204.

Compact backfill material behind the culvert structure in accordance with FP-03 208.

Backfill material shall be tested per FP-03 208 (AASHTO T99, Method C).

251 – RIPRAP

251.01 Description.

Delete the first sentence and add the following:

This work consists of furnishing and placing riprap for bank protection, slope protection, drainage structures, and erosion control.

251.07 Acceptance.

Delete the fourth sentence and add the following:

Structure excavation and backfill will be evaluated under section 208.

Government furnished material will not require sampling and testing. CO will visually inspect and approve rock.

251.09 Payment.

The cost of excavation, embankment, and haul required for placement of riprap is incidental to the riprap pay item.

272 – GEOCELL ABUTMENT STABILIZATION

Description

272.01 This work consists of constructing geocell abutment stabilization at each abutment using a cellular confinement system such as Presto Geoweb Cellular Confinement System or Webtec TerraCell in accordance with the plans and manufacturers recommendations.

Materials

272.02 Requirements. Ensure that material conforms to specifications in the following subsections:

Construction Requirements

272.03 General. Perform the work specified in Section 208 or 209. Use ditches, grading or similar methods to prevent surface runoff that may occur during inclement weather from ponding in the foundation excavation.

272.04 Storage and Handling of Material. During shipment and storage, wrap geotextile materials in heavy-duty protective covering. Protect the material from mud, soil, dust, debris and sunlight prior to installation.

272.05 Geotextile Installation. Place the geotextile according to Section 207. Have the surface approved by the CO prior to placing geotextile.

Sew or overlap adjacent strips a minimum of 12” at joints. Insert securing pins through both strips of overlapped geotextile at minimum intervals of 3 feet, but no closer than 2 inches to each edge, to prevent the geotextile from being displaced.

Have the installed geotextile approved by the CO prior to setting the geocells.

272.06 Geocell Installation. Furnish the CO with product literature and certification as required in Section 106.03 for review and approval 7 days prior to installation. When requested by the CO, furnish a sample of the geocell from each lot for verification testing.

Place the geocell sections directly on the prepared subgrade. Expand the geocell sections into position at the grades and lines as shown on the plans. Hold the expanded geocell sections with suitable “stretcher frames”, steel stakes driven inside selected outer cell walls, or other similar methods as allowed by the manufacturer prior to filling. Ensure that the individual cells have expanded to the minimum dimensions required by the manufacturer. If necessary field cut sections as per the manufacturer’s recommendations to the lines shown on the plans.

Connect geocell panels in accordance with the manufacturer’s recommendations.

272.07 Infill Placement. Furnish the CO with the manufacturer’s specific recommendations for backfilling 7 days prior to placement of the geocells.

Place coarse granular backfill meeting Subsection 703.03 into the expanded cells with equipment appropriate for the site conditions such as a backhoe or a front-end loader. Do not drop infill material more than 3 feet to avoid damage or displacement of the cell walls.

Overfill the geocell cells and level to a minimum of 2 inches above the top of the cell walls. A front-end loader may be used to place the infill provided that it only traffics above geocell sections that have been filled and covered with the minimum 2 inches of additional material. Compact the infill material with a vibratory plate compacter. Operate compaction equipment over the full width of the geocell. Make at least three complete passes or until visible deformation of the infill ceases. Grade the surface to be ½ inch above the top of the cells. Ensure that the cell walls are not exposed after fine grading is completed.

Use the geocell manufacturer’s specific recommendations for backfilling if they are more stringent than stated above.

272.08 Acceptance. Geotextile will be evaluated under Subsections 106.02 and 714.01.

Material for geocell will be evaluated under Subsections 106.2 and 106.03.

Granular backfill material will be evaluated under Section 106.02 and 106.04.

Measurement

272.09 Method. Measure the items listed in the bid schedule according to Subsection 109.02 and the following.

Measure geocell by the square yard in place, exclusive of wastage.

Payment

272.10 Basis. The accepted quantities will be paid for at the contract price per unit of measurement for the Section 272 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05.

The cost for furnishing and placing the granular backfill required in Sections 207, 208, and 209 for geocell infill is incidental to this pay item and no separate payment will be made. The cost for furnishing and placing geotextile for the geocell installation is incidental to this pay item and no separate payment will be made.

308 – MINOR CRUSHED AGGREGATE

Delete section 308 in its entirety and replace with the following:

Description

308.01 This work consists of placing Government furnished roadway aggregate or furnishing and placing crushed aggregate for bedding, backfill and roadway aggregate course.

Material

308.02 Conform to the following Subsections:

Construction Requirements

308.03 Preparing Surface. Prepare the roadway surface on which aggregate course is placed as shown on the plans.

308.04 Placing Crushed Aggregate.

(a) Roadway aggregate. Mix the aggregate and adjust the moisture content to obtain a uniform mixture with a moisture content suitable for compaction. Watering, if needed for suitable moisture content, is incidental to this Item. Spread and shape the mixture on the prepared surface in a uniform layer.

Do not place the mixture in a layer exceeding 6 inches in compacted thickness. When more than one layer is necessary, compact each layer according to Subsection 308.05(a) before placing the next layer.

308.05 Compacting and Finishing Crushed Aggregate.

(a) Roadway aggregate.

Compact the aggregate by operating compaction equipment over the total width until visible deformation ceases. A minimum of three complete roller passes shall be made at a moisture content suitable for compaction. Watering, if needed for suitable moisture content, is incidental to this Item.

Blade the surface of each layer during the compaction operations to remove irregularities and produce a smooth, even surface.

Shape the final surface to the required template shown in the drawings. The final road template shall not vary more than ±1 inch.

308.06 Acceptance. Crushed aggregate will be evaluated under Subsections 106.02.

Construction of roadway aggregate courses will be evaluated under Subsections 106.02 and 106.04. Compaction of roadway aggregate courses will be evaluated under Section 106.04.

Preparation of the surfaces on which crushed aggregate is placed will be evaluated under Section 303 as applicable.

Measurement

308.07 Measure the Section 308 items listed in the bid schedule according to Subsection 109.02 and the following as applicable.

Measure crushed aggregate by the cubic yard in place.

Payment

308.08 The accepted quantities will be paid at the contract price per unit of measurement for the Section 308 pay item listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05.

553A – PRECAST CONCRETE STRUCTURES

553A.01 Work. Construct precast concrete members. In addition, manufacture, test materials for, transport, store, and install all precast concrete portions and perform all necessary grouting, welding, or other connections. Furnish precast concrete members complete and in place, including all concrete reinforcing steel and incidentals connected therewith.

Materials

553A.02 Requirements. Provide materials that meet the requirements specified in the following subsections:

Provide precast concrete members of the size, shape, strength, air content, and finish that are SHOWN ON THE DRAWINGS. Precast concrete members must be manufactured by a plant with one of the following certifications:

Precast Concrete Footings

· Precast / Prestressed Concrete Institute (PCI)

· Bridge 1, Precast Bridge Products (no prestressed reinforcing).

· Commercial 1, Precast Concrete Products (no prestressed reinforcing).

· National Precast Concrete Association (NPCA)

· Precast

· American Concrete Pipe Association (ACPA)

· QCast

Submit a copy of the transmittal letter of the latest PCI or NPCA inspection/certification with the shop drawings.

In lieu of PCI or NPCA certification, Contractor shall retain a professional engineer to provide quality assurance for the work by inspecting and certifying in writing the concrete members are constructed in accordance to the specification and shall include but not limited to:

a) Shop drawing review.

b) Concrete member dimensions.

c) Concrete mix design.

d) Aggregate sources and test results.

e) Steel reinforcing placement.

f) Concrete curing and strength test results.

g) Concrete material certifications.

h) Placement mixing, delivery and sampling.

Certification of the above shall be received by the CO prior to shipment and installation at the job site.

Perform all sampling, testing, and inspection necessary to ensure quality control of the component materials and the concrete. Sample and test for quality control and acceptance testing in accordance with the AASHTO or ASTM test methods prescribed in Section 552.

Maintain adequate records of all inspections and tests. Keep records that indicate the nature and number of observations made, the number and type of deficiencies found, the quantities approved and rejected, and the nature of any corrective action taken.

Construction

553A.03 Performance. Construct precast concrete structural members in accordance with the following sections and subsections, as applicable:

Submit four sets of shop drawings to the CO for approval, including the concrete mix design for each class of concrete proposed for use, a minimum of 21 days before fabrication of the precast member(s).

553A.05 Handling, Transporting, & Erecting. Provide additional reinforcement, as needed, to meet the requirements of handling, transporting, and erecting precast members.

553A.06 Acceptance. Reinforcing steel, anchor devices, elastomeric bearings, and material for concrete and grout will be evaluated under Subsection 106.03. Furnish production certifications for hydraulic cement and reinforcing steel.

Concrete for precast concrete members will be evaluated under Subsections 106.02, 106.03, and 106.04.

Construction of precast concrete members will be evaluated under Subsections 106.02 and 106.04.

Reinforcing steel will be evaluated under Section 554.

Falsework and forms will be evaluated under Section 562.

Measurement 553A.07 Measure the Section 553A items listed in the bid schedule according to Subsection 109.02 and the following as applicable.

Do not measure reinforcing steel, concrete, anchorages, plates, nuts, and other material contained within or attached to the unit for precast concrete structural members.

553A.08 The accepted quantities will be paid at the contract price per unit of measurement for the Section 553A pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05.

603 – STRUCTURAL PLATE STRUCTURES

603.03 General.

Delete the first sentence and add the following:

Excavation and backfill will be evaluated under Section 208.

603.05 Acceptance.

Delete the third sentence and add the following:

Excavation and backfill will be evaluated under Section 208.

622 – RENTAL EQUIPMENT

622.02 Rental Equipment.

Delete the first two sentences of the first paragraph and add the following:

Hydraulic Excavator. Provide a track mounted hydraulic excavator. Excavator shall be reasonably free of leaks and other mechanical deficiencies. Bucket must be equipped with a hydraulic "thumb". Contractor shall supply an excavator of a size capable of performing the excavation needs for the project, i.e. structure excavation, riprap construction, in-stream structures, fish rest stop rocks, etc., or other work that may be directed under this section. Submit the model number of the equipment to the CO for approval before delivery to the project site. Contractor is required to get approval of the size of the Hydraulic Excavator from the CO prior to any work taking place.

Large Dump Truck. Provide a large dump truck with a minimum capacity of 12 cubic yards, 1990 model year or newer. Contractor is required to get approval of the size of the Dump Truck from the CO prior to any work with the dump truck taking place.

625 - Turf Establishment

625.03 General.

Delete this subsection and replace with the following:

Seeding Seasons "Time of application shall be as specified:

Should climatic conditions permit, application may be performed outside the months marked above upon written approval by the Contracting Officer."

"Unless otherwise approved, a maximum of 5000 lineal feet of roads(s) may unseeded after October 1. A maximum of 5000 lineal feet of road(s) (including pioneer roads) may remain unseeded at the end of any construction season."

"Seed shall be placed on portions of road fill and/or back slopes, waste areas, and other disturbed areas that have been constructed to template lines within 5 days of the construction activity or as specified in writing by the Contracting Officer.

625.04 Preparing Seedbed.

Delete entire subsection.

625.05 Watering

Delete entire subsection.

625.06 Fertilizing.

N = nitrogen, P = phosphorus, K = potassium.

1. Timing: Fertilize at time of seeding,

2. Type: 16N-16P-16K

3. Rate: 200 lbs/acre.

625.07 Seeding.

Delete the first sentence and add the following.

Apply seed mix by the following methods.

(a) Dry method. Delete the third sentence.

Add the following after subsection (b).

Application: “The kinds of seed to be furnished and the amounts to be applied in terms of pure seed (PLS) shall be as follows:

NATIVE CULTIVAR MOIST SITE MIX

1Quickguard Sterile Triticale (Triticum aestivum x Secale cereal) OR 1 ReGreen Sterile Wheat (Triticum aestivum) 2.0

*All seed is required to be Blue Tag Certified (“Blue Tagged”) and certified noxious weed free.

1 This seed may either be “Source Identified” or “Uncertified”, but must have lab inspections indicating it meets certification standards for seed purity and can not have noxious weed species.

**Refers to “Pure Live Seed.”

Zone Botanist may provide acceptable substitutions specifications when certain cultivars/ or species are unavailable.

Pounds of seed to be furnished per acre shall be obtained by dividing the pounds of pure live seed (PLS) required per acre by the product of the percent purity and percent germination.

625.08 Mulching.

Delete the entire subsection and replace with the following:

Vegetative mulch should be applied as needed. Uniformly apply mulch after seeding and fertilizing at a rate of 2,000 pounds/acre. Purchased mulch material should be wood straw or certified (tagged) weed free straw.

625.09 Protecting and Caring for Seeded Areas

Delete the first sentence and add the following:

Protect and care for seeded areas until final acceptance.

625.11 Measurement.

Delete the entire Subsection and replace with the following:

Measure the Section 625 items listed in the bid schedule according to Subsection 109.02.

648 – STREAM SIMULATION

648.01 This work consists of placing rock and channel material to simulate a natural streambed, profile, and cross section though road stream crossings. The placement of rock for cross-vane structures is included within this specification.

Material

648.02 Conform to the following subsections:

Construction Requirements

648.03 General. Place native streambed material on a prepared surface to form a well-graded, low permeability mass, similar in appearance and texture to the natural streambed.

648.04 Channel Excavation and Embankment.

Do not disturb material and vegetation outside the construction limits.

Construct the new stream channel as shown on the plans or as directed by the CO. Do not operate equipment in the live stream unless given approval by the CO. Only excavators with an operating weight less than 40,000 lbs may be used for channel excavation. Minimize disruption of the existing landscape and impacts to the stream. Provide adequate pumping equipment, piping or other acceptable measures, as approved by the CO, to dispose of any water encountered during excavation in a manner that will cause minimal sedimentation to the existing stream.

Scarify earth cuts to 6 inches below subgrade within the channel construction limits. Compact the scarified material according to Subsection 648.06.

Native streambed material shall be used to construct the channel section shown on the plans. Channel excavation or structure excavation material may be used. Incorporate only suitable material into embankments.

Dispose of unsuitable or excess excavation material at the waste site designated in Section 105.

Compact the material according to Subsection 648.06.

648.05 Placed Streambed Material and Cross-Vane Rock

(a) Method A, Machine Placed. Place native streambed material in one or more layers with a layer depth less than 1 ½ times the maximum dimension of the material. Place material by methods that do not cause segregation or damage to the prepared surface. Place or rearrange individual rocks by mechanical methods to obtain a compact, low permeability mass matching the natural stream configuration. Fill voids before placing the next lift.

(b) Method B, Placed Cross-Vane Rock. Place or rearrange individual rocks by mechanical or hand labor methods to obtain the configuration shown on the drawings.

648.06 Compaction.

Compact the material using mechanical and/or hand labor methods to form a well-graded, low permeability mass, similar in appearance and texture to the natural streambed.

648.07 Acceptance. Channel excavation and embankment and channel rock will be evaluated under Subsections 106.02 and 106.04.

Measurement

648.08 Measure the items listed in the bid schedule according to Subsection 109.02.

648.09 The accepted quantities, measured as provided in Subsection 109.02, will be paid at the contract unit price per unit of measurement for Section 648 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05.

670 – SLASH FILTER

670.01 This work consists of placing construction slash for the purpose of creating a sediment trap or filter to reduce erosion effects from constructed fill slopes at the locations shown on the plans.

Materials

670.02 Description. Contractor may use suitable onsite slash filter material. All other slash filter material may come from National Forest Lands two miles from the project site as approved by the CO.

Conserve suitable material from Section 201, Clearing and Grubbing, and Section 230, Roadside Brushing or created from non-merchantable timber felled as indicated by the CO. Provide tops, limbs and brush that does not exceed 5 inches in diameter and 10 feet in length. Do not include stumps and root wads. If there is insufficient quantities generated from the Clearing and Grubbing, materials will be obtained within 5 miles of the site.

Construction Requirements

670.03 Clearing. The clearing limits cannot exceed those shown on the plans.

670.04 Performance. Place slash in contact with the ground and with long dimension perpendicular to the slope of the ground. Mat down all material in the windrow with construction equipment to form a compact and uniform slash filter. Use a hydraulic excavator or method approved by the CO to construct the slash filter. Construct slash filters only in areas shown on the plans or designated by the CO. Do not place material in stream channels or location to interfere with the functioning of the drainage structures.

Reposition or cut off any slash material such as jillpokes which protrude more than 16 inches from the windrow.

Measurement

670.05 The method of measurement, as measured along the toe of the fill and described in Section 109, will be designated on the bid schedule.

703 – AGGREGATE

703.03 Granular Backfill.

Add the following:

(c) Coarse Granular Backfill. Furnish backfill material that consists of clean, hard durable particles or fragments of crushed stone, crushed slag or crushed gravel meeting the gradation shown below.

704 – SOIL

704.03 Backfill Material.

Delete this section and replace with the following:

Utilize onsite material that is well-graded, compactable material free of excess moisture, muck, frozen lumps, roots, sod, or other deleterious material. Maximum particle size cannot exceed 6 inches. Material must be stockpiled and sampled to develop a proctor for use in density compaction testing.

705 – ROCK

705.02 Riprap Rock.

Add the following:

All riprap material to be used shall be approved by the CO prior to placement.

Government Furnished rock will not require sampling or testing.

Add the following:

705.07 Native Streambed Material.

(a) Contractor shall salvage streambed material from channel excavation or excess structure excavation.

705.08 Cross-Vane and Fish Rest Stop Rock.

(a) General. Furnish onsite rock that is hard, durable material that consists of intact blocks without open fractures, foliation, or other planes of weakness.

(b) Size and Shape. Furnish onsite rocks that are generally cubical, tabular, or rectangular in shape, with dimensions as designated, or as specified in the plans.

725 – MISCELLANEOUS MATERIAL

Add the following section:

725.40 High-Strength Nonshrink Grout

Furnish grout that is packaged and ready for use with the addition of water at the construction site. Ensure that each bag is stamped to show the last date on which it may be used. Use grout that consists of a hydraulic cementitious system, graded and processed natural fine aggregate, and additional technical components such that the product meets the following conditions:

(a) Free of inorganic accelerators, including chlorides.

(b) Free of oxidizing catalysts.

(c) Free of gas-producing agents.

(d) When mixed to 130 percent flow on flow table (ASTM C 230 at 10 drops), it does not reduce in linear dimension when tested in accordance with ASTM C157. Take measurements at 72 hours and 7 days.

(e) Produces no bleeding for the first 2 hours after mixing when mixed to 130 percent flow on flow table (ASTM C 230 at 10 drops), as tested in accordance with ASTM C232.

(f) Has a minimum strength as follows when tested in accordance with ASTM C 109:

Provide performance characteristics at 115 to 120 percent flow on flow table (ASTM C 230 at 10 drops).

(g) It must be designed, as stated by the manufacturer, to be mixed, placed, and cured at atmospheric temperatures of 5O C to 30O C (40O F to 85O F). Submit products proposed for use for approval by the CO and accompany them with manufacturer’s submittals substantiating all requirements in this subsection, including graphs or charts showing the time, temperature, and humidity requirements for curing to achieve the specified grout strengths; and recommendations for storage, mixing, application, and curing procedures.

As specified as grout on the contract plans, the following products meet the above requirements.

1. MASTERFLOW 928 GROUT, manufactured by Chemrex.

2. CRYSTEX GROUT, manufactured by L&M Construction Chemicals, Inc.

3. CEMENT ALL, manufactured by CTS Cement Manufacturing Co.

4. SURE-GRIP HIGH PERFORMANCE GROUT manufactured by Dayton Superior.

725.41 Mortar

Furnish mortar that is packaged and ready for use with the addition of water at the construction site. Ensure that each bag is stamped to show the latest date on which it may be used. Use mortar that consists of a cementitious system made up of:

(a) Natural aggregate, 3/8” maximum size, that meets the requirements specified in ASTM C 33 except for grading. Accomplish grading by blending sieve sizes to obtain the optimum density.

(b) Metallic aggregate free from nonferrous material, soluble alkaline compounds, and visible rust.

(c) Water reducers, workability agents, air-entraining agents, and catalysts.

Blend the materials to minimize bleeding, increase workability, resist exposure to freeze-thaw cycles and deicing salts, and prevent shrinkage within and at the perimeter of the patch, keyway, or other area to be filled.

Ensure that the minimum compressive strength of the mortar, as tested by ASTM C 109 for a 3” slump, is:

· 24-hour..........................................................................................35MPa (5000 psi)

· 7-day.............................................................................................60 MPa (8500 psi)

· 28-day........................................................................................70 MPa (10,000 psi)

Ensure that the durability of the products when tested at 300 cycles, ASTM C 666, procedure A is:

Submerged in: DF (%)

Water 98

5% CaCl2 solution 95

5% NaCL solution 85

Ensure that the scaling resistance has a rating of 3, Moderate Scaling, after 50 cycles when tested in accordance with ASTM C 672.

Provide certification from the manufacturer that the product is compatible for work that is 1” or more in depth and more than 1” in width; and where the mixing, placing, and curing temperatures may range from 5O C to 30O C (40O F to 85O F).

Submit products proposed for use to the CO for approval, and accompany them with the manufacturer’s submittals substantiating all requirements in this section, including (1) graphs or charts showing the time, temperature, humidity, and curing requirements to achieve mortar strengths equal to the adjacent concrete; and (2) complete recommendations for storage, mixing, application, and curing procedures.

As specified as mortar on the contract plans, the following products meet the above requirements.

1. EMACO T425 or T430, manufactured by Chemrex.

2. RAPID SET DOT REPAIR MIX manufactured by CTS Cement Manufacturing Co.

3. SURE-GRIP HIGH PERFORMANCE GROUT (when extended with pea gravel) manufactured by Dayton Superior .

736 – GEOCELL

736.01 Geocell.

Furnish geocell material consisting of sheet strips fabricated from high-density polyethylene (H.D.P.E.), connected in series at off-set, full-depth ultrasonic seams aligned perpendicular to the longitudinal axis of the strips. When expanded, the interconnected strips form the walls of a flexible, three-dimensional cellular confinement structure into which the specified infill material is placed.

736.02 Requirements. Furnish geocells consisting of polyethylene material treated to resist ultraviolet degradation and conforming to the requirements shown in table 736-1.

Table 736-1 – requirements for geocells.