19-MileFSSS.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

152 – Construction Survey and Staking

153 – Contractor Quality Control

155 - Schedules for Construction Contracts

156 - Public Traffic

157 - Soil Erosion Control

203 - Removal of Structures and Obstructions

208 - Structure Excavation and Backfill for Selected Major Structures

251 - Riprap

272 - Geocell Abutment Stabilization

308 - Minor Crushed Aggregate

553A – Precast Concrete Structures

603 - Structural Plate Structures

622 - Rental Equipment

625 – Turf Establishment

626 - Plants, Trees, Shrubs, Vines, and Groundcovers

703 - Aggregate

705 - Rock

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.

The intent of the contract is to remove an existing timber bridge and replace it with a structural plate arch culvert on precast concrete footings on Nineteen Mile Creek on Road No. 233 in the Nez Perce – Clearwater National Forests. The structure is located in the Moose Creek Ranger District in Section 29, T. 32 N., R. 8 E., Idaho County, Idaho.

This project includes removing and disposing an existing timber bridge, structure excavation, roadway embankment, backfilling, compacting, furnishing and installing a new structural plate arch culvert on precast footings, riprap, and hauling and placing crushed aggregate surfacing.

The precise details of performing the work are not stipulated except as considered essential for the successful completion of the work. Furnish all labor, material, equipment, tools, transportation, and supplies necessary to complete the work according to the contract.

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 Government source for Riprap for this project.

Crushed Aggregate Source – Government Furnished. The Government source for Crushed Aggregate is O’Hara Pit described above.

Backfill (704.03) Material – Government Furnished. The Government source for Backfill (704.03) is O’Hara Pit described above.

Waste Site – Government Furnished. The waste site for excess and unsuitable material is the O’Hara Pit described above. 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

107.05 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.

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).

(c) Lump Sum Quantities (LSQ). As defined in 109.02(h)

151 - Mobilization

151.01 Description

Add the following at the end of the last sentence:

Work also includes cleaning of all heavy equipment used at the project site. Clean all construction equipment and make it available to the Forest Service for inspection prior to entry on the project site. Remove all dirt, plant parts and material that may carry noxious weed seeds into the area. Heavy construction equipment includes but is not limited to the following:

excavators, dozers, dump trucks, graders and trailer beds bringing in heavy equipment. Unless otherwise agreed, the Contractor shall give the Forest Service at least 24 hours’ notice when equipment is ready for inspection. 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.

152 – Construction Survey and Staking

152.01(a) Personnel.

Add the following:

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

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 Contractor Quality Control Plan Plan 153.02 552.09

3 151 Traffic Control Plan Plan FSSS 156.03

4 157 Dewatering and Soil Erosion and Pollution Control Plan

Plan FSSS 157.03

5 208 Excavation Plan Plan FSSS 208.04

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

10 251 Riprap Material

Certification 251.07

106, 705, Drawings

11 272 Geocell Abutment Stabilization Material

Certification 272.06

106, FSSS 736,

Drawings

12 272 Geocell: Course Granular Backfill Material

Certification 272.06

106, FSSS 703.03,

Drawings

13 272 Geocell: Geotextile – Type II Material

Certification 272.06

106, 714, Drawings

14 552 Structural Concrete: Mix Design Mix Design 552.03 553, 553A, Drawings

15 552 Structural Concrete: Testing Test Results 552.19 106, Drawings

16 553A Miscellaneous Material: Grout Material

Certification

FSSS 725.40

553, Drawings

17 553A Miscellaneous Material: Grout Product

Approval

FSSS 725.40

553, Drawings

Submittal Log

Log No.

Incidental to

Pay Item(s) Description of Submittal

Type of Submittal

Requirement found in

Specification No.

/Drawings

Additional Specification References

18 553A Welder Certification Copy of

Certification Sheet 2 of Plans

19 553A Precast Concrete Structures Shop Drawing FSSS 553A.03 104, 552, 553, 20 553A Precast Concrete Structures: Industry Certification

Fabrication Certification

FSSS 553A.02

21 553A Precast Concrete Structures: Testing Test Results FSSS 553A.06 106, 554, 562

22 553A Reinforcing Steel Order List 554.03 553A, 709, Drawings

23 603 Structural Plate Structures Assembly

Instructions 603.04

106, Drawings

24 603 Structural Plate Structures Material

Certification 603.04

106, Drawings

25 622 Equipment Rental Equipment Approval

FSSS 622.02

26 625 Seed Mix & Mulch Material

Certification 625.07

106, FSSS 625,

27 680 Temporary Bridge Bridge

Specifications

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 14 days before intended use.

Add the following project specific requirements:

The contractor will not be allowed to close Road No. 223 in the immediate vicinity of the culvert during construction. Construct and remove a Detour Road as specified in the project drawings, and in Section 680 of the Forest Service Supplemental Specifications to allow public traffic to be maintained around the site for the duration of construction activities.

Develop a construction sign plan identifying the type and location of all advanced warning signs necessary to safely restrict or pass public traffic. The traffic control plan must include provisions to safely accommodate and guide public traffic on the detour road at all hours of the day. Install construction signs conforming to the Manual on Uniform Traffic Control Devices (MUTCD) prior to proceeding with any construction work. Furnish, maintain and remove all barricades and signs required for construction signing.

It is the responsibility of the Contractor to schedule delivery of materials, equipment and all necessary supplies to the site, to ensure that the culvert 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)

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 Soil Erosion and Pollution Control Plan detailing permanent and temporary control measures to minimize erosion and sedimentation during and after construction in accordance with the plans. 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 Dewatering and Soil Erosion and Pollution 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. The following pollution prevention measures are a requirement for endangered species protection:

i. All equipment will be inspected for leaks prior to commencing work each day and any identified problems corrected before equipment is allowed to operate.

ii. Fueling, maintenance and staging of equipment will occur in designated areas away from water bodies.

iii. A spill containment kit will be available onsite at all times during construction, and proper notification procures will be in place in the event of a hazardous release.

iv. Absorbent pads will be placed beneath fuel tanks during fueling and maintenance.

Pads will also be placed under any pumps while operating.

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

The following dewatering, fish salvage, and turbidity control measures are a requirement for endangered species protection:

i. All instream work must be completed during the designated instream fisheries work window.

ii. The Contracting Officer shall be notified at least 72 hours in advance of commencing dewatering and rewatering activities.

iii. The Contractor shall coordinate and participate in the fish salvage operations in cooperation with the Contracting Officer’s fisheries biologist(s). The Contracting

Officer will provide fisheries biologists and capture equipment to lead the fish salvage effort. The Contractor shall provide pumps, equipment, labor and resources during the fish salvage operations to ensure fish passage and flow conditions per the Drawings and specifications.

iv. Work area isolation and fish capture activities will occur during periods of the coolest air and water temperatures possible, normally early in the morning, and during conditions appropriate to minimize mortality for the species present.

Electrofishing during cooler water temperatures would reduce the stress levels of salmonids.

v. Flows will be completely diverted around the instream work site through a combination of pumping and/or pre-approved, alternative methods and returned to the channel below the project area. Pump screen openings shall not exceed 3/32 or

0.0938 inches (2.38 mm). If the diversion inlet is not screened, the diversion outlet will be placed in a location that facilitates safe reentry of fish into the stream channel.

vi. Flow diversion structures will be constructed with sand bags covered with plastic sheeting. Cofferdams, portable bladder dams, or other technologies constructed of non-erodible material may also be used to contain stream flow. Once channel rehabilitation is complete, the streambed will be washed and sediment-laden water within the isolation area should be pumped to the forest floor and not allowed to return to the stream. Once the isolated streambed is washed, water will be slowly released back into the channel to minimize sediment suspension, reaching full streamflow over a period of at least one hour.

(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.

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.

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 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.

208 - Structure Excavation and Backfill for Selected Major Structures

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.

Add the following:

251.04a Rock Weirs.

Furnish riprap in accordance with FSSS 105 and as shown on the drawings. Place or rearrange individual rocks by mechanical methods to obtain a shape as shown on the drawings.

Fill all voids left during placement of rock weirs adjacent to the culvert with excess structural excavation material.

All weir locations must be approved by the CO prior to excavation or placement of rock.

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 II (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.

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 aggregate or furnishing and placing crushed aggregate for bedding, backfill and roadway aggregate course.

Material

308.02 Conform to the following Subsections:

Crushed aggregate 703.06 Water 725.01

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. 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.

(b) Bedding and backfill aggregate. Place and shape the mixture in layers that, when compacted, do not exceed 6 inches in depth.

308.05 Compacting and Finishing Crushed Aggregate.

(a) Roadway aggregate. Compact using the methods below, specified in the Schedule of Items.

(1) Method 1. Operate equipment over the full width of spread aggregate.

(2) Method 2. 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.

(b) Bedding and backfill aggregate. Compact in 6 inch lifts by using a Forest Service approved mechanical compactor until no visible deformation is observed over the entire area of aggregate.

308.06 Acceptance. Crushed aggregate will be evaluated under Subsections 106.02 and 106.03.

Furnish a production certification including gradation and quality properties for each source.

Construction of roadway aggregate courses will be evaluated under Subsections 106.02 and

106.04. Method 2 compaction will be evaluated under Section 106.04.

Placement of bedding and backfill aggregate will be evaluated under Subsection 106.02 and Section 209.

Preparation of the surfaces on which crushed aggregate is placed will be evaluated under Section 303 and 209 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 on the road.

Measure width horizontally to include the top of aggregate width including designed widenings.

Measure the length horizontally along the centerline of the roadway.

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 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 any of the following certifications:

Precast / Prestressed Concrete Institute (PCI) o Bridge 1, Precast Bridge Products (no prestressed reinforcing).

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

National Precast Concrete Association (NPCA) o Precast

American Concrete Pipe Association (ACPA) o QCast

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

In lieu of the above certifications, the 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:

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 either a casting yard of an precast industry certified plant or a casting yard of the Contractor’s choice with the appropriate certifications discussed above.

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.

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:

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 reasonably free of leaks and other mechanical deficiencies.

625 – Turf Establishment

625.07 Seeding.

The application of seed to all areas disturbed within the construction site shall be within fourteen

(14) days after the road has been constructed to final grade, unless otherwise agreed by the CO.

Other areas damaged by construction activities shall be reseeded within ten (10) days of the damage.

Application Methods for Seed: Apply seed by the Dry Method.

Add the following after subsection (b).

Seed Mix. Furnish the kinds of seed and the amounts to be applied in terms of pure live seed as follows:

Grass Species and ‘Variety’

Pounds of Pure Live Seed / Acre (rounded to nearest pound)

Annual Rye (Lolium multiflorum)

‘Garnet’ Mountain brome (Bromus marginatus)

Blue wildrye (Elymus glaucus)

‘Nezpurs’ Idaho fescue (Festuca idahoensis)

Note : Minimum 90% Purity, 90% germination.

Pounds of Pure Live Seed / Acre

626 - Plants, Trees, Shrubs, Vines, and Groundcovers

626 Delete entire section and replace with the following:

Description

626.01 This work consists of furnishing or excavating on site, transporting and re-planting trees, shrubs, vines groundcovers, and other native plants with machinery.

Materials

626.02 Existing plant material will be made available within 500 feet of project site for re-planting on newly constructed embankment slopes, and stream channel banks. Do not excavate plant materials unless the Contractor’s operations will permit re-planting within 1 hour.

Construction Requirements

626.03 General. Do not plant in frozen ground, when snow covers the ground, or when the soil is over saturated, extremely dry, or is otherwise unsatisfactory for planting.

Plant clumps shall not be excavated from critical locations, riparian areas, along streams, areas that may be prone to future erosion, or as determined by the CO. When excavating plants contractor shall leave minimum spacing of 10’ to 20’ between removals. Excavated plant areas shall have holes refilled with good quality native material. Pack soil firmly into hole.

The excavated plant shall have the entire root system, and native dirt clump, including duff layer to establish a healthy growing condition. Plants shall be healthy,and growing vigorously.

Loosen soil at the sidewalls and bottom of plant pit to a sufficient depth before setting the plant.

Remove all weeds, roots and other unsuitable material from the planting site. Remove air pockets from around the root mass when planting. Spacing of clump plantings shall be shown on the drawings or determined by the CO.

Keep all plant material moist and exercise care to prevent damage to bark, branches, and root systems. Employ all necessary means to preserve the plants in a healthy growing condition during plant establishment period.

626.04 Acceptance. Planting of trees, shrubs, and other native plants will be evaluated under Subsections 106.02 and 106.04.

Measurement

626.05 Measure the Section 626 items listed in the bid schedule according to Subsection 109.02.

Payment

626.06 The accepted quantities will paid at the contract price per unit of measurement for section 626 pay item listed in the bid schedule. Payment will be full compensation for the work prescribed in this section. See Subsection 109.05

680 – Detour Road

680.01

This work consists of constructing, maintaining, and removing the detour roadway and temporary bridge as shown on the plans.

This work includes clearing and grubbing, removing and replacing topsoil, excavating, embankment, grading, and temporary surfacing, if required. This work also consists of transporting and installing a Government-furnished temporary bridge for use over Nineteen Mile Creek at the site and maintaining the detour bridge during construction of the new culvert. The Contractor may also furnish a detour bridge provided the minimum requirements for length, road width, and minimum clear height are met. Installation of the temporary bridge includes temporary sills, excavation and backfill, and anchoring bridge superstructures to abutments as required. It also includes removing all items and reshaping all ground slopes back to their original condition when the detour is no longer needed, seeding and mulching disturbed areas, as well as any incidental work necessary to complete and remove the detour roadway.

Materials

680.02

Conform to the following Subsections:

Excavation and Embankment 204

Construction Requirements

680.03 General. Construct the detour road alignments to the lines and grades as shown on the plans. Remove the detour roadway and all roadway materials from the project upon completion of the permanent bridge. Materials may be incorporated into the permanent roadway if approved by the CO. Reshape the ground under the detour lines to their present contours; replace conserved topsoil, seed and mulch.

Furnish and install temporary traffic control devices per Section 635 of the specifications, and in accordance with the Contractor’s Traffic Control Plan. Minimum requirements for traffic control signage are shown in the drawings.

Perform excavation, backfill, and embankment work under Sections 204 and 208. Dispose of all debris resulting from operations in accordance with Section 203.

The detour road must have a minimum width and a maximum grade as shown in the plans.

Surfacing will not be required. Provide erosion control measures to prevent runoff from the surface entering directly into the stream.

See Section H of the contract documents for location and description of the Government-furnished detour bridge. Inventory bridge with Forest Service personnel upon pick-up and document any missing or damaged parts. After the work is complete, return the detour bridge to the Forest Service to the same location where it was picked up or an alternate location agreed to with the CO. Replace all bridge components lost or damaged during the course of installation and subsequent use of the bridge prior to returning the bridge.

680.04 Bridge Requirements.

Either a Government- or contractor-furnished bridge may be used for the detour bridge. The bridge must meet the following requirements:

1. Size. Provide a minimum structure length of 28 feet, a minimum curb-to-curb structure width of 12 feet and minimum clear height of 2 feet from the low chord elevation to the 2-year water surface.

2. Railing. At a minimum, railing must consist of a 15 inch high curb. Approach railing is not required.

3. Load Capacity. The bridge must be able to accommodate all legal highway vehicles.

For a contactor-furnished bridge, provide load rating calculations using LFR or LRFR AASHTO rating methodologies to demonstrate the operating rating or safe load capacity, respectively, in accordance with AASHTO’s Manual For Bridge Evaluation for Type 3, 3S2 and 3-3 AASHTO Trucks. Load Rating must be completed by a Professional Engineer registered in the State of Idaho. The Government-furnished bridge will have an acceptable load rating.

4. Hydraulic Capacity. The bridge must be able to pass, at a minimum, the 2-year flow of 62 cfs. The estimated water surface at the upstream edge of the detour bridge during the 2-year event is 1577.9 feet.

Install, maintain, and remove the detour bridge at the approximate location shown on the plans.

Ensure that no approach fill enters the stream. Perform any in-stream work required to construct the detour bridge during the allowed in-stream work period.

680.05 Abutments and Approaches. The Contractor is responsible to install all necessary substructure elements to complete the detour bridge installation. Timber or concrete sills may be used to construct the bridge to the grade shown in the drawings. All costs associated with additional materials required for the abutments should be considered incidental to the work.

Construct required sills, bearing, and abutments according to Division 500. Construct approaches including excavation and backfill according to sections 204 and 208.

680.06 Acceptance.

Detour roadway, including construction and erection of the bridge superstructure, will be evaluated under Subsection 106.02 and 106.04.

Measurement

680.07 Method. Excavation and embankment for the detour road will not be measured.

Payment

680.08

Construction, maintenance, and subsequent removal of the detour road and bridge will be paid at the contract price per unit of measurement for the Section 680 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05.

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

705 - Rock

705.07 Streambed Simulation Rock.

(a) General. Furnish a mixture of soil, gravel, cobble, and boulders to simulate a natural streambed. The cobbles and boulders should be hard, durable rock that conforms to test values in 705.02.

Table 705-5 – Gradation requirements for Streambed Simulation Material inches or sieve size

Bed Class 100% passing 84% passing 50% passing 16% passing 10% passing

2 5 2 3/4 1/4 No. 10

4 10 4 1 3/4 1/2 No. 10

6 14 6 2 1/2 3/4 No. 10

8 22 8 3 1 No. 10

10 24 10 4 1 No. 10

12 30 12 5 1 1/2 No. 10

14 36 14 6 1 3/4 No. 10

16 42 16 7 2 No. 10

20 48 20 8 3 No. 10

24 60 24 10 3 No. 10

36 72 36 14 4 No. 10

48 96 48 18 6 No. 10

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