Supplemental specx. S-10-0144 -SCHOONER-DEER Creek 11-1-08.pdf

FOREST SERVICE SUPPLEMENTAL

SPECIFICATIONS

For

SCHOONER AND DEER CREEK

CULVERT REPLACEMENTS

Schooner Creek, FS Road 222, MP 15.0

Deer Creek, FS Road 1195, MP 0.6

U.S.D.A. FOREST SERVICE

NEZ PERCE NATIONAL FOREST, RED RIVER RANGER DISTRICT

IDAHO COUNTY, IDAHO

November 2008

FOREST SERVICE SUPPLEMENTAL SPECIFICATIONS

SCHOONER AND DEER CREEK CULVERT REPLACMENTS

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

151.01 Description

155 - Schedules for Construction Contracts

156 - Public Traffic

156.03 Accommodating Traffic During Work

156.04 Maintaining Roadways During Work

156.08 Traffic and Safety Supervisor

157 - Soil Erosion Control

157.02 Materials

157.03 General

157.04 Controls and Limitations on Work

157.08 Water Crossings

203 - Removal of Structures and Obstructions

203.01 Work

203.05 Disposing of Material

204 - Excavation and Embankment

204.01 Description

204.07 Subexcavation

204.11 Compaction

204.13 Sloping, Shaping and Finishing

204.14 Disposal of Unsuitable or Excess Material

209 - Structure Excavation and Backfill

209.04 General

251 - Riprap

209.01 Description

209.07 Acceptance

209.10 Grade Control Structure

272 - Geocell Foundation Stabilization

272.01 Description

272.02 Requirements

SCHOONER AND DEER CREEK CULVERT REPLACMENTS

272.03 General

272.04 Storing and Handling Material

272.05 Geotextile Installation

272.06 Geocell Installation

272.07 Infill Placement

272.08 Acceptance

272.09 Method

272.10 Basis

301 - Untreated Aggregate Courses

301.05 Compacting

301.06 Surface Tolerance

603 - Structural Plate Structures

603.04 Erecting

622 - Rental Equipment

622.02 Rental Equipment

622.04 Measurement

625 - Turf Establishment

625.03 General

625.04 Preparing Seedbed

625.05 Watering

625.06 Fertilizing

625.07 Seeding

625.08 Mulching

625.09 Protecting and Caring for Seeded Areas

625.11 Measurement

704 - Soil

704.02 Bedding Material

705 - Rock

705.02 Riprap Rock

725 - Miscellaneous Material

725.40 High-Strength Non-shrink Grout

725.41 Mortar

736 - Geocell

736.01 Geocell

736.02 Requirements

SCHOONER AND DEER CREEK CULVERT REPLACEMENTS

Preface

Preface_wo_03_15_2004_m

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

101.00_nat_us_07_25_2005

101.01_nat_us_02_17_2005

101.01 Meaning of Terms.

Add the following:

Delete all references in FP-03 to Transportation Acquisition Regulations (TAR).

101.03_nat_us_02_17_2005

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_nat_us_02_22_2005

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.

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.

R ig h t o f

W a y

R o a d si d e R o a d s id e

C le a ri n g W id th

R o a d w a y C le a ri n g L im it

X Y

G ro u n d

L in e

T ra v e le d

W a y

C L B e rm

S u rf a c e

C o u rs e B a s e

C o u rs e

F ill

S lo p e

B a c k S lo p e

D ra in a g e D itc h

G ro u n d L in e

S u b g ra d e

R o a d

B e d

S h a p e s a n d d im e n s io n s w ill v a ry t o f it lo c a l c o n d iti o n s

S e e d ra w in g s f o r ty p ic a l s e c tio n s

X a n d

Y d e n o te c le a ri n g o u ts id e o f ro a d w a y

N o te

Right - of - Way Line

Right - of - Way Line

Clearing Limit

Shoulder

Shoulder

102 - Bid, Award, and Execution of Contract

102.00_nat_us_02_16_2005

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 two stream crossing structures: Schooner

Creek on FS Road 222, MP 15.0 and Deer Creek on FS Road 1195, MP 0.60 on the Nez Perce

National Forest. The crossings are located in the Red River Ranger District in Sections 10 and

17, T. 27 N., R. 9 E., Idaho County, Idaho.

This project includes removing and disposing existing culverts, structural excavation, roadway excavation, backfilling, compacting, riprap, hauling and placing aggregate surfacing, minor hot asphalt concrete (Schooner Creek), furnishing and constructing an open-bottom structural steel arch at Schooner Creek, and furnishing and installing a new pipe-arch culvert on Deer Creek.

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

104.01_nat_05_11_2004

104 Control of Work:

Delete sections 104.01, 104.02, 104.04 and 104.06.

104.03_nat_05_11_2004

104.03 Specifications and Drawings.

Add the following:

(c) As-Built-Plans. Furnish one set of as built plans. The Government will provide one set of contract plans to be used exclusively for recording the as-built details of the project. Use red pencil or red ink to record the information on the as-built plans.

Note all additions or revisions to the location, character, and dimensions of the prescribed work shown on the contract plans. Line out all details shown that are not applicable to the completed work. Check off details shown that were incorporated into the completed work without change.

Retain the plans at the project site and, as work progresses, continually update them to reflect the as-built details. Upon request, make the plans available to the CO to review for compliance with these specifications.

Show the following types of changes on the as-built plans:

(1) Typical section(s)

(a) Revisions in dimensions

(b) Revisions in materials

(2) Plan and profile

• Revisions to the alignment

• Changes in the construction limits

• Revisions in location, type, and grade of road approaches

• Location and type of utilities

• Location, size, and type of underdrains

• Skew of culverts

• Channel changes

• Location of monuments and permanent references

• Elevations for all aerial and underground crossings of utilities

• Location, length, and type of fencing

• Revisions to grades, elevations, and stationing of intersection PIs

• Equations

• Culvert diameter, length, type, and stationing. On culvert extensions, indicate the length of the existing pipe and the length of the extension.

• Location, length, stationing, and type of retaining walls

• Location, length, stationing, and end treatment of guardrail

(3) Bridge

(a) Stationing of bridge ends

(b) Revisions to footing and seal elevations

(c) Pile length, size, type, and tip elevation

(d) Any changes in plan or dimensions including any major changes in reinforcing

(4) Miscellaneous

(a) Revisions to parking areas or turnouts

(b) Final location, type and length of curbs, sidewalks, etc.

Furnish the as-built working plans to the CO before the final inspection. Correct all details found during the final inspection that are not shown on the as-built plans and return to the CO within 5 days.

Add the following subsection:

104.05_nat_05_17_2004

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_nat_05_11_2004

105.02 Material Sources

Add the following before the first paragraph.

Sources have been designated for this project as follows:

Riprap Source – Commercial Source. There is no designated government source for riprap on this project. Contractor will obtain riprap from a commercial source.

Crushed Aggregate Source – Commercial Source. There is no designated government source for crushed aggregate on this project. Contractor will obtain crushed aggregate from a commercial source.

Bedding Material – Commercial Source. There is no designated government source for bedding material on this project. Contractor will obtain bedding material from a commercial source.

Coarse Granular Backfill Material – Commercial Source. There is no designated government source for coarse granular backfill on this project. Contractor will obtain coarse granular backfill from a commercial source.

Waste Site – Government Furnished – The waste site for excess and unsuitable material will be designated by the C.O.

Under (b) Contractor-located sources add the following:

Prior to any pit development or use of materials, the pit site shall be approved by the CO that the pit site is free of noxious weed as listed on the "All States Noxious Weeds List”.

105.05_nat_us_05_12_2004

105.05 Use of Material Found in the Work.

Delete 105.05 (a) and (b) and the last sentence of the second paragraph and substitute the following:

Materials produced or processed from Government lands in excess of the quantities required for performance of this contract are the property of the Government. The Government is not obligated to make reimbursement for the cost of producing these materials.

106 - Acceptance of Work

106.01_nat_us_03_29_2005

106.01 Conformity with Contract Requirements.

Delete Subsection 106.01 and substitute the following:

Follow the requirements of FAR Clause 52.246-12 Inspection of Construction.

References to standard test methods of AASHTO, ASTM, GSA, and other recognized standard authorities refer to the methods in effect on the date of solicitation for bids.

Perform all work to the lines, grades, cross-sections, dimensions, and processes or material requirements shown on the plans or specified in the contract.

Incorporate manufactured materials into the work according to the manufacturer’s recommendations or to these specifications, whichever is more strict.

Plan dimensions and contract specification values are the values to be strived for and complied with as the design values from which any deviations are allowed. Perform work and provide material that is uniform in character and reasonably close to the prescribed value or within the specified tolerance range. The purpose of a tolerance range is to accommodate occasional minor variations from the median zone that are unavoidable for practical reasons.

When standard manufactured items are specified (such as fence, wire, plates, rolled shapes, pipe conduits, etc., that are identified by gauge, unit mass, section dimensions, etc.), the identification will be considered to be nominal masses or dimensions. Unless specific contract tolerances are noted, established manufacturing tolerances will be accepted.

The Government may inspect, sample, or test all work at any time before final acceptance of the project. When the Government tests work, copies of test reports are furnished to the Contractor upon request. Government tests may or may not be performed at the work site. If Contractor testing and inspection is verified by the Government, the Contractor’s results may be used by the

Government to evaluate work for acceptance. Do not rely on the availability of Government test results for process control.

Acceptable work conforming to the contract will be paid for at the contract unit bid price. Four methods of determining conformity and accepting work are described in Subsections 106.02 to

106.05 inclusive. The primary method of acceptance is specified in each Section of work.

However, work may be rejected at any time it is found by any of the methods not to comply with the contract.

Remove and replace work that does not conform to the contract, or to prevailing industry standards where no specific contract requirements are noted, at no cost to the Government.

(a) Disputing Government test results. If the accuracy of Government test results is disputed, promptly inform the CO. If the dispute is unresolved after reasonable steps are taken to resolve the dispute, further evaluation may be obtained by written request. Include a narrative describing the dispute and a proposed resolution protocol that addresses the following:

(1) Sampling method;

(2) Number of samples;

(3) Sample transport;

(4) Test procedures;

(5) Testing laboratories;

(6) Reporting;

(7) Estimated time and costs; and

(8) Validation process.

If the evaluation requires additional sampling or testing be performed, mutually agree with the Government on witnessing procedures and on sampling and testing by a third party laboratory. Use a third party laboratory accredited by the AASHTO accreditation program.

Provide proof of the laboratory’s accreditation for the test procedures to be used. Do not use the same laboratory that produced the disputed Government test results or that produced the test results used as a basis for the dispute.

The CO will review the proposed resolution protocol and may modify it before final approval and execution.

The Government will use the approved resolution protocol test results to determine the validity of the disputed testing. If the Government test results are validated, the Contractor will be responsible for all costs associated with developing and performing the resolution protocol. If the Government test results are not validated, the Government will be responsible for all costs associated with developing and performing the resolution protocol.

If the validity of the Government test results cannot be determined, the Contractor and

Government will equally share all costs associated with developing and carrying out the resolution protocol.

(b) Alternatives to removing and replacing non-conforming work. As an alternative to removal and replacement, the Contractor may submit a written request to:

(1) Have the work accepted at a reduced price; or

(2) Be given permission to perform corrective measures to bring the work into conformity.

The request must contain supporting rationale and documentation. Include references or data justifying the proposal based on an evaluation of test results, effect on service life, value of material or work, quality, aesthetics, and other tangible engineering basis. The CO will determine disposition of the nonconforming work.

106.07_nat_us_05_11_2004

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:

Do not work within the wetted perimeter of streams before July 1 st or after August 15 th . During the in-stream work window the Contractor will minimize the number of times the stream is crossed with equipment.

107.05_nat_us_05_11_2004

107.05 Responsibility for Damage Claims.

Delete the entire subsection.

107.06_nat_us_04_27_2005

107.06 Contractor’s Responsibility for Work.

Delete the following:

“except as provided in Subsection 106.07”.

107.09_nat_us_05_11_2004

107.09 Legal Relationship of the Parties.

Delete the entire subsection:

107.10_nat_us_02_23_2005

107.10 Environmental Protection.

Add the following:

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

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

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

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

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

• Containment procedures.

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

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

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

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

108 - Prosecution and Progress

108.00_nat_05_11_2004

108 Delete.

Delete Section 108 in its entirety.

109 - Measurement and Payment

109.02_nat_05_11_2004

109.02 Measurement Terms and Definitions.

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.

109.03_nat_05_11_2004

109 Deletions

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 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.

151 - Mobilization

151.01_0114_us_08_04_2005

151.01 Description

This work consists of washing and treating construction equipment and vehicles necessary for equipment transport to remove seeds, plants, and plant fragments before the equipment is used on Forest Service lands.

Wash the sides, tops, and undercarriages of all construction equipment. Remove all seeds, plants, plant fragments, dirt, and debris from the construction equipment. Only equipment inspected by the Forest Service will be allowed to operate within the project area. All subsequent move-ins of equipment to the project area will be treated in the same manner as the initial move-in. This requirement does not apply to cars, pickup trucks, and other vehicles that regularly travel between the construction site and areas off the National Forest.

Equipment will be considered free of soil, seed, and other such debris when a visual inspection does not disclose such material. Disassembly of equipment, components or the need for specialized inspection tools is not required.

Notify the CO in writing at least 24 hours before moving any construction equipment onto the national forest. Notification will include an agreed upon location where the equipment will be available for inspection by the Forest Service. Inspection will be required after every cleaning.

Use methods of cleaning and locations for cleaning approved by the C.O.

For work at a commercial washing facility, use an approved facility.

New infestations of noxious weeds of concern to Forest Service and identified by either

Contractor or Forest Service, on the Project Area or on the haul route, will be promptly reported to the other party. Contractor and Forest Service will agree on treatment methods to reduce or stop the spread of noxious weeds when new infestations are found. A current list of noxious weeds of concern to Forest Service is available at each Forest Service office.

155 – Schedules for Construction Contracts

Delete Section 155 in its entirety.

156 - Public Traffic

156.03_nat_11_05_2004

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.

Delete the following from the last paragraph:

…..according to Subsection 106.07(b)

On FS Road 222 (Schooner Creek) the contractor must maintain passage of at least one lane of traffic during construction with a maximum of 30 minute delays. FS Road 1195 may be closed during construction from July 5 th to August 30 th for up to 4 weeks in the immediate vicinity of the Deer Creek crossing.

Give the CO at least 21 days advance written notice prior to any road closure period to allow public notice of the closure by the Forest Service.

As a part of the sign plan for the Deer Creek culvert replacement, the Contractor will be required to furnish and install advance road closed signs at the junction of Forest Road

1195 and Forest Road 1196B and at the junction of Forest Road 1195 and County Road

222.

156.04 Maintaining Roadways During Work.

(a) Add the following:

The construction of detour roads for this project is not allowed.

156.08 Traffic and Safety Supervisor.

Delete this section in its entirety.

157 - Soil Erosion Control

157.02_01_08_23_2004

157.02 Materials

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

157.03_0510_11_10_2004

Construction Requirements

157.03 General

Delete the first two paragraphs and add the following:

"This work includes submitting an Erosion Control Plan detailing permanent and temporary control measures to minimize erosion and sedimentation during and after construction according to the contract specifications, contract permits, Section 107, and this Section. Contract permits amend the requirements of this Section. 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 Contracting Officer for approval.

The erosion control plan reflects special concerns and measures necessary to protect resources and government improvements. The Erosion Control Plan shall, at a minimum:

1. Describe the construction activities and sequence of implementation relating to specific erosion control measures.

2. Describe the location and type of permanent controls to be implemented during construction.

3. Describe the location and type of temporary controls to be implemented during construction.

4. For work in stream channels with flowing water include a detailed dewatering plan.

5. Include procedures and temporary control measures to be implemented to minimize sediment delivery during re-watering of any new culvert with streambed simulation material.

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

7. Describe what monitoring will take place.

8. Describe the measures that will be taken to minimize erosion and sediment delivery from material stockpiles.”

Add to the third paragraph:

“Upon completion of construction at the site, all temporary dewatering materials and equipment are to be removed from Government property."

157.04 Controls and Limitations on Work.

Add the following to the second paragraph:

“Temporary erosion control measures will be in place at the end of each day’s operation if greater than 30 percent chance of rainfall is predicated. Earthwork operations may be temporarily suspended by the C.O. if significant rainfall is forecasted.”

157.08 Water Crossings.

“Any site where there is running water through a channel crossing shall be dewatered by rerouting the flow around the site before and during excavation and embankment operations that has the potential for sediment delivery to the live stream.”

Measurement

157.15 Add the following:

“In addition to any temporary or permanent erosion control measures outlined in the Soil Erosion and Pollution Prevention Plan required under this specification, the Contractor will have available on site 4 straw bales and 30 feet of 12” diameter straw wattle for the discretionary use of the C.O. Upon completion of the project, bales and wattle that have been incorporated into the work sites will remain in place or be removed as directed by the C.O. Unused bales will be uniformly spread as mulch over seeded areas. Unused straw wattle becomes the property of the

Government upon completion of the project. ”

Payment

157.16 Add the following:

“Payment for all erosion control measures required under this specification will be considered incidental to other pay items shown on the SCHEDULE OF ITEMS.”

203 - Removal of Structures and Obstructions

203.01_nat_05_12_2004

203.01 Work.

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.

(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 subsection

(c) Bury. Delete this subsection

(e) Scattering. Scatter pieces of wood less than 3 inches in diameter and 3 feet in length within the clearing limits or in locations designated on the ground by the C.O. Do not place construction slash in lakes, meadows, streams, or streambeds. Immediately remove construction slash that interferes with drainage structures. Dispose of excess slash upstream as directed by the

C.O.

204 - Excavation and Embankment

Description

204.01 Delete the first paragraph and replace it with the following:

This work consists of stream channel excavation, excavating material, and constructing embankments. This includes furnishing, hauling, stockpiling, placing, disposing, sloping, shaping, compacting, and finishing earthen and rocky material.

204.07 Subexcavation.

Add the following subsection:

204.07A Excavation for Stream Modification.

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

204.11 Compaction.

Delete the first paragraph and replace it with the following:

For compaction method (d) no sieve test is required.

Add the following compaction method:

(d) 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 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.

204.13 Sloping, Shaping, and Finishing.

Delete section (d) and add the following:

(d) Finishing. Finish the roadbed to be smooth and uniform, and shaped to conform to the typical sections. Remove unsuitable material from the roadbed and replace it with suitable material.

Remove all material larger than 6 inches from the top 6 inches of the roadbed and replace with suitable material.

Ensure that the embankment material is visibly moist during shaping and dressing. Bring low sections, holes, cracks, or depressions to grade with suitable material. Maintain proper ditch drainage.

204.14 Disposal of Unsuitable or Excess Material.

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

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

209 - Structure Excavation and Backfill

209.04 General. Add the following:

Use suitable material in the construction of the roadway embankment and for structural backfill.

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

251 - Riprap

Description

251.01

Replace with the following:

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

251.07 Acceptance.

Delete reference to 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.

251.10 Grade Control Structure.

Furnish rock meeting the requirements of section 705.02 at the size shown in the grade control structure details. Place or rearrange individual rocks by mechanical methods to obtain a shape matching grade control structure details. Fill all voids left during placement of grade control structures adjacent to concrete footings or corrugated pipes with excess structural excavation material. All grade control structure locations must be approved by the CO prior to the excavation or placement of any rock

272 - Geocell Foundation Stabilization

272.01_01_08_27_2004

Description

272.01 This work consists of constructing geocell foundation stabilization at each foundation 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

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. Ensure that the surface upon which the geotextile is to be placed is uniform and is reasonably smooth and free of obstructions, depressions, and debris that could damage the geotextile. Have the surface approved by the CO prior to placing geotextile.

Lay the geotextile without tension, stress, wrinkles or creases. 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 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 2 weeks prior to placement of the geocells.

Place 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 until visible deformation of the infill ceases. Make at least three complete passes. 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 106.03 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.

272.08 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

272.09 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 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.

301 - Untreated Aggregate Courses

301.05 Compacting.

Delete and replace with the following:

Compact each layer full width. Roll from the sides to the center, parallel to the centerline of the road. Along curbs, headers, walls, and all places not accessible to the roller, compact the material with approved tampers or compactors.

Compact the aggregate using the following method as specified:

Compaction E. 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 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.

301.06 Surface Tolerance.

Thickness and Width requirements:

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

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

603 – Structural Plate Structures

603.03_nat_05_13_2004

603.04 Erecting.

Add to the third paragraph:

Torque all bolts before beginning the backfill.

622 - Rental Equipment 622.02_01_08_20_2004

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 in acceptable operating condition as determined by the CO. Bucket must be equipped with an hydraulic "thumb". It is anticipated that an excavator of a size capable of performing the excavation needs for the project, i.e. structure excavation, riprap construction, etc., will be of an adequate size to be acceptable for any work that the Contractor may be directed to perform under this section.

Large Dump Truck. Provide a large dump truck with a minimum capacity of 12 cubic yards in acceptable operating condition as determined by the CO.

622.04 Add the following:

The Government reserves the right to reduce or eliminate entirely the work under this item with no adjustment in contract unit price.

625 - Turf Establishment

625.00_0114_us_07_12_2007

625.03 General.

Delete the first sentence and add the following:

Apply turf establishment to portions of slopes, ditches, waste areas, and other disturbed areas within 14 days after being constructed to template lines unless otherwise specified in writing by the C.O..

625.04 Preparing Seedbed.

Delete the second sentence of the first paragraph.

Delete the third paragraph.

625.05 Watering

Delete the entire paragraph.

625.06 Fertilizing.

Delete the entire subsection and add the following.

Apply fertilizer having a chemical analysis as listed in (c) below by the following methods.

Apply seed and fertilizer in one application.

(a) Dry Method. Apply the fertilizer with approved power driven seeders, drills, fertilizer spreaders or other mechanical equipment. Hand operated methods are satisfactory on areas inaccessible to mechanical equipment.

(b) Hydraulic method. Use hydraulic-type equipment capable of providing a uniform application using water as the carrying agent. Add fertilizer to the slurry and mix before adding seed.

(c) Chemical analysis. Apply fertilizer at the rate of 100 pounds per acre. Apply fertilizer having the following chemical analysis.

Nutrient Percent

Nitrogen, N 16

Phosphorus, P2O5 16

Potassium, K 16

Fertilizer having a different chemical analysis may be used if approved in advance by the

CO.

625.07 Seeding.

Delete the first sentence and add the following.

Apply seed mix shown in (c) below by the following methods.

(a) Dry method.

Delete the third sentence.

Add the following after subsection (b).

(c) Seed Mix. In terms of pure live seed, furnish and apply the following kinds and amounts of seed. Obtain the pounds of seed to furnish per acre by dividing the pounds of pure live seed required per acre by the product of the percent purity and percent germination.

Example: 5 lbs Pure Live Seed/Acre = 6.55 lbs Commercial Seed/Acre

0.90 X 0.85 (Purity = 90% and Germination = 85%)

Kind of Seed Quantity of Pure Live Seed

(Lbs/Acre)

1. Annual Rye 16

2. Nez Purs Idaho Fescue 8

3. Garnet Mountain Brome 8

Total 32

625.08 Mulching.

(b) Hydraulic method.

Delete the first sentence and add the following.

Apply mulch in a separate application from the seed or in a single application with the seed using hydraulic-type equipment according to Subsection 625.07(b).

625.09 Protecting and Caring for Seeded Areas.

Delete the first sentence and add the following.

Protect and care for seeded areas until final acceptance.

625.11 Measurement

Delete the second paragraph and add the following.

Measure seeding, fertilizing, and mulching by the acre on the ground surface or by lump sum.

703 – Aggregate

703.03 Granular Backfill. Add the following:

(c) Geocell. 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

3/4 inch 75 to 100

No. 4 0 to 60

No. 40 0 to 50

No. 200 0 to 5

704 - Soil

704.02_nat_08_12_2004

704.02 Bedding Material.

Delete Subsection 704.02 and substitute the following:

Furnish a well graded, free draining material free of excess moisture, muck, frozen lumps, roots, sod, or other deleterious material conforming to the following:

(a) Maximum particle size 1 inch

705 - Rock

705.02 Riprap Rock.

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

Delete the following:

Conform to the following:

(a) Apparent specific gravity, AASHTO T 85 2.50 min.

(b) Absorption, AASHTO T 85 4.2% max.

(c) Coarse durability index, AASHTO T 210 50 min.

725 - Miscellaneous Material

725.40_01_08_27_2004

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:

(d) Free of inorganic accelerators, including chlorides.

(e) Free of oxidizing catalysts.

(f) Free of gas-producing agents.

(g) 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.

(h) 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.

(i) 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_01_08_27_2004

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