Jim_Creek__888-3.15_FSSS_2_25_14.pdf

Table of Contents

Table of Contents

Preface

101 - Terms, Format, and Definitions

102 - Bid, Award, and Execution of Contract

103 - Scope of Work

104 - Control of Work

105 - Control of Material

106 - Acceptance of Work

107 - Legal Relations and Responsibility to the Public

108 - Prosecution and Progress

109 - Measurement and Payment

151 - Mobilization

153 – Contractor Quality Control

155 - Schedules for Construction Contracts

156 - Public Traffic

157 - Soil Erosion Control

201 – Clearing and Grubbing

203 - Removal of Structures and Obstructions

204 - Excavation and Embankment

208 - Structure Excavation and Backfill for Selected Major Structures

251 - Riprap

272 - Geocell Abutment Stabilization

404 - Minor Hot Asphalt Concrete

553 – Prestressed Concrete

553A – Precast Concrete Structures

622 - Rental Equipment

625 – Turf Establishment

703 - Aggregate

725 - Miscellaneous Material

736 - Geocell

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

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:

mp Milepost ppm Part Per Million

101.04 Definitions.

Delete the following definitions and substitute the following:

Bid Schedule--The Schedule of Items.

Bridge--No definition.

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.

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, 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.

103.01 Intent of Contract. Delete this subsection and replace with the following:

This project is for the removal of an existing timber bridge on Jim Creek and replacing it with a new precast, prestressed concrete bridge. This project is located in the Flathead National Forest on National Forest System Road No. 888 at Mile Post 3.15 in the Swan Lake Ranger District in Section 32, T. 22 N., R. 17 W., Lake County, Montana.

The work includes but is not limited to clearing and grubbing, erosion control measures, structure excavation, roadway embankment, backfilling, compacting, removing and disposing an existing timber bridge, salvaging existing timber stringers and curbs, riprap, furnishing and installing precast, prestressed concrete girders and precast concrete foundations, furnishing and placing crushed aggregate, furnishing and placing hot asphalt concrete, and all other incidental items necessary to complete the project in accordance with the plans and specifications. The precise details of performing the work are not stipulated except as considered essential for the successful completion of the work.

104 - Control of Work

Deletions

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:

Riprap Source – Contractor Furnished. There is no available Government source for Riprap for this project.

Crushed Aggregate Source – Contractor Furnished. There is no available Government source for Crushed Aggregate for this project.

Coarse Granular Backfill – Contractor Furnished. There is no available Government source for Coarse Granular for construction of the geocell abutment stabilization.

Waste Site – Government Furnished. A waste site for excess and unsuitable material will be the Piper Creek Pit located in the SE ¼ of Section 18, T 22 N., R. 17 W. This site is to be used for the disposal of unsuitable or excess excavated material only. All other materials designated for removal and disposal must be disposed of away from Forest Lands as per SPS Section 202.

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

107.02 Protection and Restoration of Property and Landscape.

Add the following:

Work within the wetted perimeter of streams will be allowed only during low flow from July 15th to August 31st.

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 the 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 definition:

(p) Thousand Board Feet (Mbf). 1,000 board feet based on nominal widths, thickness, and extreme usable length of each piece of lumber or timber actually incorporated in the job. For glued laminated timber, 1,000 board feet based on actual width, thickness, and length of each piece actually incorporated in the job.

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.

(c) Lump Sum Quantities (LSQ). These quantities denote one complete unit of work as required by or described in the contract, including necessary materials, equipment, and labor to complete the job.

151 - Mobilization

151.01 Description

Add the following at the end of the last sentence:

“Work also includes cleaning of all equipment used at the project site. Clean all construction equipment prior to entry on the project site. Remove all dirt, plant parts and material that may carry noxious weed seeds into the area. Only construction equipment inspected by the Forest Service will be allowed to operate within the project area. Treat subsequent move-ins of equipment the same as the initial move-in. Clean truck beds and dump boxes hauling to the project site prior to entering the work area.”

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

Log No.

Incidental to

Pay Item(s) Description of Submittal

Type of Submittal

Requirement found in

Specification No.

/Drawings

Additional Specification References

1 151 Weed Free Material Source Certification

Material Certification

FSSS 105.02(b)

2 151 Hazardous Spill Plan Plan FSSS 107.10

3 151 Contractor Quality Control Plan Plan 153.02 552.09

4 151 Traffic Control Plan Plan FSSS 156.03

5 157 Dewatering and Soil Erosion and Pollution Control Plan

Plan FSSS 157.03

6 204 Material Moisture/Density Testing Test Results Table 204-1 106

7 204 Embankment Compaction Testing Test Results 204.11 106

8 208 Material Moisture/Density Testing Test Results Table 208-1 106

9 208 Structure Backfill Compaction Testing

Test Results 208.11, 208.12 106

10 208 Excavation Plan Plan FSSS 208.01

11 251 Riprap Material

Certification 251.07

106, 705, Drawings

12 272 Geocell Abutment Stabilization Material

Certification 272.06

106, FSSS 736,

Drawings

13 272 Geocell: Course Granular Backfill Material

Certification 272.06

106, FSSS 703.03,

Drawings

14 272 Geocell: Geotextile – Type IV Material

Certification 272.06

106, 714, Drawings

15 308 Aggregate Gradation Material

Certification 308.06

703.05, Drawings

16 308 Material Moisture/Density Testing Test Results Table 308-1 106

17 308 Aggregate Compaction Testing Test Results 308.05 106

18 404 Asphalt Mix Design 404.02 106

Submittal Log

Log No.

Incidental to

Pay Item(s) Description of Submittal

Type of Submittal

Requirement found in

Specification No.

/Drawings

Additional Specification References

19 404 Asphalt Testing Test Results 404.09 106

20 552 Structural Concrete: Mix Design Mix Design 552.03 553,553A Drawings

21 553 Prestressed Concrete Shop Drawing 104.03 553, Drawings

22 553 Prestressed Concrete: PCI Certification

Fabrication Certification

FSSS 553.03

23 553 Prestressed Concrete: Prestressing Method

Approval

553.03 Drawings

24 553 Prestressed Concrete: Materials Material

Certification

106, 552, 554, 709, Drawings

25 553 Prestressed Concrete: Testing Test Results 553.11 106, 552, Drawings

26 553 Reinforcing Steel and Wire Rope Material

Certification 709.01

553, Drawings

27 553 Miscellaneous Material: Grout Material

Certification

FSSS 725.40

553, Drawings

28 553 Miscellaneous Material: Grout Product

Approval

FSSS 725.40

553, Drawings

29 553 Welder Certification Copy of

Certification Sheet 2 of Plans 555.18

30 553A Precast Concrete Structures Shop Drawing FSSS 553A.03 104, 552, 553, 31 553A Precast Concrete Structures: PCI Certification

Fabrication Certification

FSSS 553A.02

32 553A Precast Concrete Structures: Testing Test Results FSSS 553A.06 106, 554, 562

33 553, 553A Reinforcing Steel Order List 554.03 553, 553A, 709, Drawings

34 622 Equipment Rental Equipment Approval

FSSS 622.02

35 625 Fertilizer, Seed Mix, & Mulch Material

Certification 625.10

106, FSSS 625,

155 - Schedules for Construction Contracts

155 Delete.

Delete Section 155 in its entirety.

156 - Public Traffic

156.03 Accommodating Traffic During Work.

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. 888 in the immediate vicinity of the project to public traffic during construction for a period of three (3) weeks under this contract. Provide at least 21 days advance written notice to the CO prior to any road closure period, to allow public notice of the closure period by the Forest Service.

As a part of the sign plan, the Contractor will be required to furnish and install advance road closed signs at the junction of the Road No. 966 & Road No. 888 and at the junction of Road No.

888 and Road No. 903.

If the Contractor is not working at the site for a period of longer than 96 hours the road shall be left in a passable condition unless approved by the CO.

It is the responsibility of the Contractor to schedule delivery of materials, equipment and all necessary supplies to the site, to ensure that the bridge can be substantially completed within the specified contract time.

The Contractor shall be responsible for providing, installing, maintaining, and removal of warning signs and barricades required for the road closure period in accordance with MUTCD as submitted and approved in the traffic control plan.

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.

157 - Soil Erosion Control

157.02 Materials

Add the following:

Provide bales, wattles, logs and rolls from a certified noxious weed free source.

157.03 General.

Delete the first two paragraphs and replace with the following:

Submit a Dewatering and 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 or practice without approval. Submit the erosion control plan proposal 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 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.

The Dewatering Plan must specifically address the means and methods to be used during placement of riprap to isolate the work zone from flowing or standing water to prevent turbid water and sediments from being discharged into the stream.

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.

157.08 Water Crossings.

Add the following:

At any channel crossing where there is running water, dewater by rerouting water flow around the site before and during excavation and embankment operations.

201 – Clearing and Grubbing

Construction Requirements

201.06 Disposal. Delete this subsection and substitute the following:

Dispose of construction slash by either scattering outside the clearing limits without damaging trees, or by placing on embankment slopes to reduce soil erosion. When placing slash on embankment slopes start at the toe of the fill and place as flat as practicable on the completed slope.

Merchantable timber is the Government’s property. Limb and deck merchantable timber on site as directed by the CO.

Measurement

201.08. Delete this subsection and replace with the following:

“Do not measure clearing and grubbing for payment.”

203 - Removal of Structures and Obstructions

203.03 Salvaging Material. Add the following:

Salvage all of the timber stringers and curbs from the existing bridge. Remove and dispose the deck and all abutment timbers. Take care during deck removal to minimize damage to the stringers.

Load and transport all salvaged material to the USFS wareyard at 10 Hungry Horse Drive, Hungry Horse, Montana. Provide 24 hour notice prior to delivery of materials by calling 406- 387-3800. Materials may only be delivered Monday through Friday, 8:30 a.m. to 4:00 p.m., except on Federal holidays. At the wareyard assist rigging and stacking during off-loading of the salvaged pieces.

203.05 Disposing of Material.

Modify this subsection as follows:

(a) Remove from project. Add the following:

All materials designated for removal become the property of the Contractor and are to be disposed of by removing off of Forest Service 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. Priority for use of available slash is for: (1) through fills; (2) insides of curves; and (3) ditch relief outlets. All slash material not suitable for embankment slopes shall be disposed off Forest Service Lands in accordance with all local, state and federal requirements or as approved by the CO.

204 - Excavation and Embankment

204.13 Sloping, Shaping, and Finishing.

Delete section (d) and add the following:

(d) Finishing. For crushed aggregate surfaced roads, remove all material larger than 6 inches from the top 6 inches of the roadbed. For all roads, finish the roadbed to be smooth and uniform, and shaped to conform to the typical sections. Remove unsuitable material from the roadbed and replace it with suitable material.

Ensure that the subgrade for both surfaced and unsurfaced roads is visibly moist during shaping and dressing. Bring low sections, holes, cracks, or depressions to grade with suitable material.

Maintain proper ditch drainage.

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 approved by the CO.

208 - Structure Excavation and Backfill for Selected Major Structures

208.01 Delete this subsection and replace with the following:

This work consists of excavating material for the construction of the bridge and for new channels. This work includes preserving channels, shoring and bracing, constructing cofferdams, sealing foundations, dewatering, excavating, hauling and spreading excess excavated material, preparing foundations, backfilling, constructing the road subgrade and subsequent removal of safety features and cofferdams.

208.02 Add the following:

Backfill material 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 at designated sites shown on the drawings or as directed by the CO.

Submit an Excavation Plan for approval prior to beginning the work. As a minimum, the Excavation Plan must include: drawings and a written outline illustrating and describing the proposed excavation limits, methods, equipment to be used, location of stockpiles, and estimated quantities. The Excavation Plan must comply with all applicable OSHA requirements and list the soil type assumed.

208.10 Backfill.

Delete the first sentence and replace with the following:

Backfill with material meeting the requirements of Subsection 704.03, Backfill Material.

251 - Riprap

251.01 Description

Delete the first sentence and add the following:

This work consists of furnishing, hauling, and placing of riprap for bank protection, slope protection, drainage structures, erosion control, and other features shown on the plans.

251.07 Acceptance

Delete the fourth sentence and add the following:

Structure excavation and backfill will be evaluated under section 208.

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:

Granular Backfill Type (c) 703.03 Geotextile, Type IV (A, B, C) 714.01 Geocell 736

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.

404 - Minor Hot Asphalt Concrete

404.02 Composition of Mix (Job-Mix Formula).

Add the following:

After review of the submitted mix design the CO may increase the asphalt content to be used for construction, up to .3% over that recommended by the Laboratory mix design.

404.07 Compacting (a).

Delete the first sentence and add the following:

Compact the mix to a minimum of 92% of maximum specific gravity (density).

404.09 Acceptance.

Add the following:

The acceptable range of asphalt content for the mix will be the CO approved asphalt mix content + or - 0.4%.

553 – Prestressed Concrete

Construction Requirements

553.03 Method Approval.

Add the following:

Precast prestressed concrete members must be manufactured by a plant with one of the following certifications:

Precast / Prestressed Concrete Institute (PCI) o Bridge 4, Prestressed Deflected-Strand Bridge Beams (superstructure).

National Precast Concrete Association (NPCA) o Precast and Prestressed

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

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.

553A – Precast Concrete Structures

Description

553A.01 Work. Construct precast concrete members. In addition, manufacture, test materials for, transport, store, and install all precast concrete portions except piling, 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:

High-Strength Nonshrink Grout ……………………………… 725.40 Mortar ………………………………………………………… 725.40 Reinforcing Steel ……………………………………………… 709.01 Sealants, Fillers, Seals, & Sleeves …………………………….. 712.01 Structural Concrete ……………………………………………. 552 Structural Steel ………………………………………………… 717.01

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 / Prestressed Concrete Institute (PCI) o Bridge 4, Prestressed Deflected-Strand Bridge Beams (superstructure).

National Precast Concrete Association (NPCA) o Precast and Prestressed

Submit a copy of the transmittal letter of the latest PCI or NPCA inspection/certification with the shop drawings. Precast concrete members must be manufactured by the same certified plant that manufactures the prestressed concrete members on this project.

Construction

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

Reinforcing Steel ………………………………………………... 554 Storing, Transporting, & Erecting ………………………………. 553.08 Structural Concrete ……………………………………………… 552

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.04 Casting Yard. The precasting of concrete structural members may be done at a casting yard of a PCI/NPCA Certified plant.

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.

Payment

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.

622 - Rental Equipment

622.02 Rental Equipment

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

Provide equipment of the type listed in the Schedule of Items. Provide equipment of at least the minimum size needed to efficiently perform the work. Submit the model number of the equipment to the CO for approval before delivery to the project site. Equipment shall be no more than 15 years old and shall be reasonably free of leaks and other mechanical deficiencies.

625 – Turf Establishment

625.07 Seeding.

Add the following:

The application of seed and fertilizer to cut & fill slopes shall be within fourteen (14) days after the road has been constructed to final grade, unless otherwise agreed by the CO. Cut & Fill slopes damaged by construction activities such as surface blading or additional excavation shall be reseeded within ten (10) days of the damage.

Seeding Seasons:

Apply seed during the months marked with an 'X' below:

JAN FEB MAR APR MAY JUNE JULY AUG SEPT OCT NOV DEC

XX XX XX XX XX

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

Application Methods for Seed and Fertilizer:

Apply seed by the Dry Method. The kind of seed to be furnished and the amounts to be applied in terms of pure live seed shall be as follows:

Kind of seed Species Pounds (PLS) % by Per Acre weight

1. Blue Wildrye Elymus glaucus 12 48

2. Mountain Brome Bromus marginatus 5 20

3. Bluebunch Wheat Grass Pseudoroegneria spicata 4 16

4. Slender Wheatgrass Elymus trachycaulus 4 16 Total................25 Pounds/ Acre

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 & percent germination.

Example: (5 lbs. PLS/acre) = 6.55 lb.

(0.90 x 0.85) where purity = 90% & germination = 85%

Fertilizer shall be applied at a rate of 100 pounds per acre in one application by the Dry Method and have a chemical analysis as listed below:

Nutrient Percent

Nitrogen (N) 16 Phosphorus (P2O5) 16 Potassium (K) 16

Purchaser shall provide to the Forest Service:

1. Blue tags, or copies of blue tags from each seed lot. Only certified, blue-tagged seed shall be used. The blue tag represents a field certification and serves as evidence of the genetic purity and varietal identity of the seed contained in the seed lot.

2. Labels which indicate the percentage composition of various species in the seed mix.

625.08 Mulching.

Delete the entire subsection and replace with the following:

Apply straw or hay mulch that is Montana certified weed free within 48 hours after seeding by the following methods.

(a) Dry Method. Apply mulch by hand or with a mechanical spreader at a uniform rate of 2000 pounds per acre. Apply mulch by hand in areas inaccessible to mulching equipment.

Apply mulch uniformly over the entire disturbed area.

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.

Sieve Size Percent Passing

1 inch 100 ¾ inch 75 to 100 No. 4 0 to 60 No. 40 0 to 50 No. 200 0 to 5

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:

(1) After 72 hours, 25 MPa (3500 psi).

(2) At 7 days, 40 MPa (6000 psi).

(3) After 28 days, 50 MPa (7200 psi).

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.

Density ASTM D 1505 0.935 to 0.965 g/cm3 (58.4 to 60.2 pounds per cubic foot).

Environmental Stress Crack Resistance

ASTM D 1693 3000 hour

Strip Sheet Thickness

ASTM D 5199 1.27 mm (50 mil), minus 5 percent, plus 10 percent.

Determine thickness in the flat before any surface texturing or other surface disruption.

Short-term peel strength

U.S. Army Corps of Engineers Technical Report GL-86-19, Appendix A

2000 N (450 pound) minimum for 203 mm (8.0 inch) depth cell

Seam Hang Strength 101.6 mm (4”) weld joint supporting load of 72.5 kg (160 pounds) or

101.6 mm (4”) weld joint supporting load of 72.5 kg (160 pounds) while undergoing temperature change from 23O C to 54O C (74O F to 130O F) on 1 hour cycles.

30 days minimum

7 days minimum