Attachment1_BillyGoatAOPCulvert_SpecialProjectSpecs.pdf

FOREST SERVICE

SUPPLEMENTAL SPECIFICATIONS

For

BILLY GOAT AOP

CULVERT REPLACEMENT

NO. 7108-0.21

DJ&A, P.C.

Engineers - Planners - Surveyors

3203 So. Russell St

Missoula, MT 59801

U.S.D.A. FOREST SERVICE

GALLATIN NATIONAL FOREST

May 2010

Table of Contents

Table of Contents

Preface

101 - Terms, Format, and Definitions

101.01 Meaning of Terms

101.03 Abbreviations

101.04 Definitions

102 - Bid, Award, and Execution of Contract

102 Bid, Award, and Execution of Contract

103 - Scope of Work

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

104 - Control of Work

Deletions

104.06 Use of Roads by Contractor

105 - Control of Material

105.02 Material Sources

106 - Acceptance of Work

106.07 Delete

107 - Legal Relations and Responsibility to the Public

107.02 Protection and Restoration of Property and Landscape

107.05 Responsibility for Damage Claims

107.06 Contractor’s Responsibility for Work

107.09 Legal Relationship of the Parties

107.10 Environmental Protection

108 - Prosecution and Progress

108 Delete

109 - Measurement and Payment

109 Deletions

109.02 Measurement Terms and Definitions

109.10 Methods of Measurement

153 – Contractor Quality Control

153.07. Project Submittals

155 - Schedules for Construction Contracts

155 Delete

156 - Public Traffic

156.03 Accommodating Traffic During Work

156.08 Traffic and Safety Supervisor

157 - Soil Erosion Control

157.02 Materials

157.03 General

157.08 Water Crossings

203 - Removal of Structures and Obstructions

203.05 Disposing of Material

204 - Excavation and Embankment

204.11 Compaction

204.14 Disposal of Unsuitable or Excess Material

208 - Structure Excavation and Backfill for Selected Major Structures

208.04 General

208.11 Compacting

208.12 Acceptance

251 - Riprap

251.01 Description

251.07 Acceptance

272 - Geocell Abutment Stabilization

308 - Minor Crushed Aggregate

553 – Prestressed Concrete

553.03 Method Approval

553A – Precast Concrete Structures

622 - Rental Equipment

622.02 Rental Equipment

625 – TURF ESTABLISHMENT

625.08 Mulching

703 - Aggregate

703.03 Granular Backfill

725 - Miscellaneous Material

725.40 High-Strength Nonshrink Grout

725.41 Mortar

736 - Geocell

736.01 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.

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, 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

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

The intent of the contract is to remove and replace an existing culvert over Smith Creek on Road

No. 7108 (Billy Goat Road) on the Gallatin National Forest with a prestressed concrete bridge on precast concrete abutments. The structure is located in the Livingston Ranger District in Section

6, T5N., R10E., Meagher County, Montana.

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.

Delete the remaining subsections in this Section.

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 – Government Furnished. The Government source for Riprap for this project is the Sunlight Pit along Sunlight Road in Section 27, T5N, R10E.

Riprap may require sorting to meet the specified gradation.

Suitable riprap material may also be conserved from the excavation.

Crushed Aggregate Source – Government Furnished. The Government source for

Crushed Aggregate for this project is the Sunlight Pit where described above.

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

Waste Site – Government Furnished – A waste site for excess and unsuitable material is located at the beginning of Billy Goat Road 0.21 miles from the site in Section 6, T5N, R10E. 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.

Materials Stockpile Site- Government Furnished – Prior to the closure of Road 7108, the

Contractor will be allowed to stockpile material, except crushed aggregate, but including riprap and bridge components, approximately 200 yards from the site on Billy Goat

Road. Materials must be stockpiled in such a manner as to allow for safe passage of the general public along Road 7108 and to avoid damage to any trees at the site. Provide the

CO 72 hours advance notification prior to stockpiling any materials at the site.

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 as specified in the approved

124 permit.

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) Designed Quantities (DQ). These quantities denote the final number of units to be paid for under the terms of the contract. They are based upon the original design data available prior to advertising the project. Original design data include the preliminary survey information, design assumptions, calculations, drawings, and the presentation in the contract. Changes in the number of units DESIGNATED IN THE SCHEDULE OF ITEMS may be authorized under any of the following conditions:

(1) Changes in the work authorized by the CO.

(2) A determination by the CO that errors exist in the original design that cause a

PAY ITEM quantity to change by 15 percent or more.

(3) A written request submitted to the CO showing evidence of errors in the original design that cause the quantity of a PAY ITEM to change by 15 percent or more.

The evidence must be verifiable and consist of calculations, drawings, or other data that show how the designed quantity is in error.

(b) Stake Quantities (SQ). These quantities are determined from staked measurements prior to construction.

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

(d) Vehicle Quantities (VQ). These quantities are measured or weighed in hauling vehicles.

(e) 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.

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 Soil Erosion and Pollution Control

Plan Plan FSSS 157.03

6 251 Riprap Material

Certification 251.07

106, 705, Drawings

7 272 Geocell Abutment Stabilization Material

Certification 272.06

106, FSSS 736,

Drawings

8 272 Geocell: Course Granular Backfill Material

Certification 272.06

106, FSSS 703.03,

Drawings

9 272 Geocell: Geotextile – Type II Material

Certification 272.06

106, 714, Drawings

10 553 Prestressed Concrete Shop Drawing 104.03 553, Drawings

11 553 Prestressed Concrete: PCI

Certification

Fabrication

Certification

FSSS 553.03

12 553 Prestressed Concrete: Prestressing Method

Approval

553.03 Drawings

13 553 Prestressed Concrete: Materials Material

Certification

106, 552, 554, 709, Drawings

14 553 Prestressed Concrete: Testing Test Results 553.11 106, 552, Drawings

15 553A Precast Concrete Structures Shop Drawing FSSS 553A.03 104, 552, 553, Submittal Log

Log

No.

Incidental to

Pay

Item(s) Description of Submittal

Type of

Submittal

Requirement found in

Specification No.

/Drawings

Additional

Specification

References

16 553A Precast Concrete Structures: PCI

Certification

Fabrication

Certification

FSSS 553A.02

17 553A Precast Concrete Structures: Testing Test Results FSSS 553A.06 106, 554, 562

18 553, 553A Reinforcing Steel Order List 554.03

553, 553A, 709, Drawings

19 622 Equipment Rental Equipment

Approval

FSSS 622.02

20 625 Fertilizer, Seed Mix, & Mulch Material

Certification 625.10

106, FSSS 625, 713

21 553 Reinforcing Steel and Wire Rope Material

Certification 709.01

553, Drawings

22 553 Miscellaneous Material: Grout Material

Certification

FSSS 725.40

553, Drawings

23 553 Miscellaneous Material: Grout Product

Approval

FSSS 725.40

553, Drawings

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. 7108 to thru traffic for the duration of the project.

Provide and install advance road closed signs and a Type III barricade at the intersection with

Smith Creek Road No. 991 and at the private property beyond the bridge site.

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 give the CO at least two weeks advanced written notice prior to any road closure. The Contractor shall be responsible for providing, installing, maintaining, and removal of warning signs and 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 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 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.

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.

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.

(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.

(f) Scattering. Scatter construction slash outside the clearing limits without damaging trees.

Limb all logs. Place logs and stumps away from trees, positioned so they will not roll, and are not on top of one another. Limb and scatter other construction slash to reduce slash concentrations.

204 - Excavation and Embankment

204.11 Compaction.

Delete section and add 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 or, in when a sheepsfoot roller is used, the roller “walks out” of the layer. Make at least three 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 approved by the CO.

208 - Structure Excavation and Backfill for Selected Major Structures

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.

208.11 Compacting.

Delete this section and add the following:

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 or, in when a sheepsfoot roller is used, the roller “walks out” of the layer. Make at least three complete passes.

208.12 Acceptance.

Delete reference to Table 208-1:

Delete Table 208-1:

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 sampling and testing requirements of Table 251-1.

Delete the fourth sentence and add the following:

Structure excavation and backfill will be evaluated under section 208.

Delete Table 251-1.

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 (a) 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

308.05 Compacting and Finishing Crushed Aggregate.

(a) Roadway aggregate. Delete this subsection and replace with the following:

Adjust the moisture content of the material to a level suitable for compaction. Operate compaction equipment over the full width of each layer until visible deformation of the layer ceases. Make at least three complete passes

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

Ensure that the thickness and width of the compacted aggregate conform to the dimensions

SHOWN ON THE DRAWINGS, and that measurements on the compacted aggregate meet the following criteria:

(a) The maximum variation from the compacted specified thickness is ½ inch.

(b) The compacted thickness is not consistently above or below the specified thickness and the average thickness of 4 random measurements for any ½ mile of road segment is within + ¼ inch of the specified thickness.

(c) The maximum variation from the specified width will not exceed +12 inches at any point.

(d) The compacted width is not consistently above the specified width and the average of any four random measurements along any ½ mile of road segment is within +4 inches of the specified width.

553 – Prestressed Concrete

Construction Requirements

553.03 Method Approval.

Add the following:

Precast prestressed concrete members must be manufactured by a plant certified by the

Prestressed Concrete Institute (PCI). Submit a copy of the transmittal letter of the latest PCI inspection with the shop drawings.

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 certified by the Prestressed Concrete Institute (PCI). Submit a copy of the transmittal letter of the latest PCI inspection with the shop drawings.

In lieu of PCI 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:

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 only be done at a casting yard of a PCI 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.

Application Methods for Seed and Fertilizer:

Apply seed by the Dry Method at an application rate of 30 lbs. per acre. The seed will be furnished by the Government.

625.08 Mulching

Delete the entire subsection and replace with the following:

Apply Mulch within 24 hours after seeding by the following methods.

(a) Dry Method. Apply mulch by hand or with a mechanical spreader at a rate of 1000 pounds per acre. Mulch areas inaccessible to mulching equipment by hand. Apply mulch uniformly over the entire disturbed area.

703 - Aggregate

703.03 Granular Backfill.

(c) Course 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 5 O C to 30

O C (40

O F to 85

O 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 5 O C to 30

O C (40

O F to 85

O 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/cm (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 23 O C to 54 O

C (74 O

F to 130 O

F) on 1 hour cycles.

30 days minimum

7 days minimum