A-7_AttachmentJ2_FSSS.docx

FOREST SERVICE

SUPPLEMENTAL SPECIFICATIONS

FOR

BIG CREEK BRIDGE

ROAD NO. 311 – M.P. 10.5

U.S.D.A Forest Service, Region 1 Nez Perce-Clearwater National Forest Red River Ranger District Idaho County, Idaho

Prepared by:

GREAT WEST ENGINEERING

2501 Belt View Drive Helena, MT 59604

BIG CREEK BRIDGE

Road No. 311 – M.P. 10.5

FOREST SERVICE SUPPLEMENTAL SPECIFICATIONS

TABLE OF CONTENTS

iii

PREFACE

Delete all but the first paragraph and add the following:

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

101 - TERMS, FORMAT, AND DEFINITIONS

101.01 Meaning of Terms.

Add the following:

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

101.03 Abbreviations.

Add the following to (a) Acronyms:

AFPA

MSHA

NIST

NESC

WCLIB

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

Add the following to (b) SI Symbols:

101.04 Definitions.

Delete the following definitions and substitute the following:

Bid Schedule--The Schedule of Items.

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.

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

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

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

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

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

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

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

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

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

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

Figure 101-1—Illustration of road structure terms.

102 - BID, AWARD, AND EXECUTION OF CONTRACT

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

103 - SCOPE OF WORK

Deletions Delete all but subsection 103.01 Intent of Contract.

The project consists of the removal of an existing timber bridge and the construction of a new 60’-0” span by 18’-0” useable width steel girder bridge with a timber glulam deck and concrete grade beam foundation. The bridge is located on Forest Service Road No. 311 at the Big Creek crossing at milepost 10.5. Improvements consist of, but are not limited to: structure excavation, placement of riprap, geocell abutment stabilization, installation of concrete grade beams, furnishing and erecting a new steel girder bridge with timber glue-laminated deck and timber running planks, backfill, installation of glue-laminated curb, embankment and excavation of the roadway approaches, and placing new crushed aggregate surfacing.

The project is located in the Red River Ranger District of the Nez Perce-Clearwater National Forests, southwest of Elk City in Idaho County, Idaho (Section 18, Township 26 North, Range 7 East). Refer to the location map on the title sheet of the plans.

104 - CONTROL OF WORK

104 Control of Work.

Delete sections 104.01, 104.02, and 104.04.

Add the following subsection:

104.06 Use of Roads by Contractor

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

105 - CONTROL OF MATERIAL

105.02 Material Sources.

Add the following before the first paragraph.

Sources have been designated for this project as follows:

Waste Site – Government Furnished - A waste site for excess or unsuitable material will be located at the Burpee Pit as shown on the cover sheet of the plans.

All other materials designated for removal and disposal must be disposed of away from National Forest lands per FSSS Section 203.05.

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

Roadway Embankment Source – Government Furnished - The Contractor shall use suitable onsite material from structure excavation and roadway excavation for embankment construction. All material must be approved by the CO before placement. A source for additional roadway embankment material (if necessary) will be at the Burpee Pit as shown on the cover sheet of the plans.

Backfill Material – Government Furnished – Suitable structure excavation material may be utilized as backfill. Additional material shall come from the Burpee Pit as shown on the cover sheet of the plans. This material can be used for backfill material as approved by the CO.

Riprap Source – Government Furnished – Contractor may salvage onsite riprap for use on this project. It is estimated that 15 cubic yards of riprap may be salvaged at the site. Additional Class 5 riprap rock is located at the Burpee Pit as shown on the cover sheet of the plans. Rock will require development and sorting to meet the specified gradation.

Crushed Aggregate Source – Contractor Furnished

Coarse Granular Backfill Source – Contractor Furnished

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

Delete the following entire subsections:

109.06 Pricing of Adjustments.

109.07 Eliminated Work.

109.08 Progress Payments.

109.09 Final Payment.

Add the following Definition:

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.

151 - MOBILIZATION

151.01 Description

A preliminary construction schedule shall be submitted 7 days prior to the preconstruction meeting.

All temporary or portable signs shall be included as a subsidiary item to section 151. Signs and sign placement shall meet the requirements of the “MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES” (MUTCD), published by the U.S. Department of Transportation, Federal Highway Administration. Work on the project shall not be started until all required signs are in place and approved by the C.O.

Removal and replacement of road closure devices such as concrete barriers or earth barriers to gain access to the project shall be included as incidental to Section 151 Mobilization.

Work also includes cleaning all construction equipment prior to entry on to Forest Lands. 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. The Contractor shall give the Forest Service at least 24 hours advance notification when equipment is ready for inspection. The location for inspection shall be as agreed upon in the preconstruction meeting.

151.03 Payment

Add the following:

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

152 – CONSTRUCTION SURVEY AND STAKING

152.03 Survey and Staking Requirements.

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

Pay Item(s)

/Drawings Additional Specification References

Certification FSSS 105.02(b)

Certification

FSSS 736, Drawings

Certification

FSSS 703.03, Drawings

Approval

FSSS 622.02

155 – SCHEDULES FOR CONSTRUCTION CONTRACTS

155 Delete Delete Section 155 in its entirety.

156 - PUBLIC TRAFFIC

156.03 Accommodating Traffic During Work.

Delete the following from the last paragraph:

According to Subsection 106.07(b)

Delete the first paragraph and replace with the following:

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

Add the following project specific requirements:

The Contractor will be allowed to close Road No. 311 at the bridge site to through traffic for up to 60 calendar days. 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 contract time. The Contractor shall give the CO at least three weeks advanced written notice prior to any road closure. The Contractor shall be responsible for providing, installing, maintaining, and removal of warning signs and type 3 barricades required for the road closure period. At the Contractor’s written request, traffic delays up to one hour will be approved should the project work necessitate short traffic delays outside the closure period.

Contractor shall provide and install two ‘road closed ahead’ signs for the duration of the work. The signs shall be located at:

· Road No. 311 turnoff in Orogrande

· Road No. 222 and Road No. 1188 intersection.

ROAD CLOSED

XX MILES AHEAD

156.08 Traffic and Safety Supervisor.

Delete this subsection in its entirety.

156.10 Measurement and payment.

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

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

157 – SOIL EROSION CONTROL

157.02 Materials.

Add the following:

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

157.03 General.

Delete the first two paragraphs and replace with the following:

Submit an Erosion Control Plan detailing permanent and temporary control measures to minimize erosion and sedimentation during and after construction in accordance with the plans and storm water permits. Do not modify the type, size, or location of any control without approval. Submit the erosion control 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.

Add the following to the third paragraph:

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

203 – REMOVAL OF STRUCTURES AND OBSTRUCTIONS

203.01 Delete and replace with the following:

This work consists of disposing of clearing slash, salvaging, removing and disposing of buildings, fences, structures, pavements, culverts, utilities, curbs, sidewalks, and other obstructions.

203.05 Disposing of Material.

Modify this subsection as follows:

(a) Remove from project. Add the following:

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

(b) Burn. Delete this section.

(c) Bury. Delete this section.

Add the following:

(e) Placing Slash on Embankment Slopes. Place construction slash on completed embankment slopes or scatter as directed by the CO to reduce soil erosion. Place construction slash as flat as practicable on the completed slope. 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

204.11 Compaction.

Delete and replace with the following:

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

204.14 Disposal of Unsuitable or Excess Material.

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

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

204.15 Acceptance.

Delete reference to Table 204-1.

208 - STRUCTURE EXCAVATION AND BACKFILL FOR SELECTED MAJOR STRUCTURES

208.02 Material.

Delete Structural Backfill and Add the Following:

Backfill 704.03

208.04 General.

Add the following:

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

208.08 Dewatering.

Delete the subsection and add the following:

Submit a dewatering plan according to Section 157.03.

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

208.11 Compacting.

Add the following:

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

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

251 - RIPRAP

251.01 Description.

Delete the first sentence and add the following:

This work consists of furnishing, hauling, and placing 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.

Delete the first sentence and add the following:

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

251.09 Payment.

Add the following:

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

272 – GEOCELL ABUTMENT STABILIZATION

Description

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

Materials

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

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 shall consist of hauling, placing, finishing, and compacting roadway aggregate.

Material

308.02 Conform to the following Subsections:

Construction Requirements

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

308.04 Placing Crushed Aggregate.

(a) Roadway aggregate.

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

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

308.05 Compacting and Finishing Crushed Aggregate.

(a) Roadway aggregate.

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

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

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

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

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

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

Measurement

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

Measure crushed aggregate by the cubic yard in the hauling vehicle.

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

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:

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

Precast Concrete Grade Beam

· Precast / Prestressed Concrete Institute (PCI)

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

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

· National Precast Concrete Association (NPCA)

· Precast

· American Concrete Pipe Association (ACPA)

· QCast

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

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

a) Shop drawing review.

b) Concrete member dimensions.

c) Concrete mix design.

d) Aggregate sources and test results.

e) Steel reinforcing placement.

f) Concrete curing and strength test results.

g) Concrete material certifications.

h) Placement mixing, delivery and sampling.

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

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

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

Construction

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

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

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

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

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

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

Reinforcing steel will be evaluated under Section 554.

Falsework and forms will be evaluated under Section 562.

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

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

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.

555 - STEEL STRUCTURES

555.03 General.

Add the following:

In lieu of AISC Simple Steel Bridge Structures certification, Contractor shall retain a professional engineer to provide quality assurance for the work by inspecting and certifying in writing the steel members are fabricated in accordance to the specifications and shall include but not limited to:

a) Shop drawing review.

b) Material mill certifications.

c) Welding - qualifications of personnel.

d) Welding.

e) Fabrication.

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

555.06 Drawings.

Add the following to paragraph (b) Erection Drawings:

The contractor is responsible to make field adjustments to account for any differential camber between girders to ensure glulam deck panels are in full contact with all girders. Along with erection drawings, provide a plan detailing methods to be used, if necessary, for making field adjustments to ensure full contact between girders and deck panels is achieved.

555.15 Preassembly of Field Conditions.

Add the following to the end of this section:

Measure and document the girder camber at the 1/10th points along the span at the time of preassembly and submit the resulting camber diagram to the CO.

555.19 Erection.

Add the following to paragraph (c) Erection Procedure, subparagraph (3) Maintaining alignment and camber:

After the girders are assembled and erected, verify the camber at the 1/10th points along the span. Notify the CO if differential camber between girders exceeds ¼” at any point. Do not set deck panels until any differential camber issues have been resolved to the CO’s satisfaction. See FSSS Section 555.06 for erection drawing requirements. Positive camber after bridge completion is required.

622 - RENTAL EQUIPMENT

622.01 Description

Add the following to Subsection 622.01 Work is to correct minor site discrepancies not noted in the contract documents that occurred between award of contract and implementation of work needed to result in a complete project. Examples of work may include:

a. Excavating and placing embankment,

b. Slide removal,

c. Drainage and roadway repair,

d. Haul and placement of material such as rocks, logs, or debris, or

e. Sign or gate installation

622.02 Rental Equipment.

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

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

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

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.

622.04 & 622.05 Measurement and Payment.

Add the following:

The contractor shall be aware of the following statement within section F of the Contract under FAR 52.211-18 Variation in Estimated Quantities: “Adjustment of contract prices as described in this section shall not apply to section 622…. The government reserves the right to reduce or eliminate entirely the work under this item with no adjustment in the contract unit price.”

625 – TURF ESTABLISHMENT

625.04.

Delete this entire subsection:

625.05.

Delete this entire subsection:

625.06.

Delete this entire subsection:

625.07 Seeding.

Add the following after subsection (b):

Application Methods for Seed:

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:

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.

Seed Certification:

Certified, blue-tagged seed shall be used where a named variety or cultivar is specified. Blue Tags that are removed to mix or spread the seed will be saved and provided to the forest. All seed purchased will be certified free of seeds from weeds listed on the current “All States Noxious Weeds List.”

625.08.

Delete this section and replace with the following:

No fertilizer will be required.

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.

703.06 Crushed Aggregate.

Delete this subsection and add the following:

Furnish crushed surface aggregate meeting the following gradation. Variations may be approved by the CO.

704 – SOIL

704.03 Backfill Material.

Delete this section and replace with the following:

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

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.

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 image2.wmf image1.gif