A6 J2 Specifications 127EAV26Q0010.pdf

Forest Service Supplemental Specifications Kinney Creek Trail Bridge

Table of Contents

Table of Contents Preface 101 - Terms, Format, and Definitions 102 - Bid, Award, and Execution of Contract 103 - Scope of Work 104 - Control of Work 105 - Control of Material 106 - Acceptance of Work 107 - Legal Relations and Responsibility to the Public 108 - Prosecution and Progress 109 - Measurement and Payment 151 - Mobilization 152 - Construction Survey and Staking 154 - Contractor Sampling and Testing 155 - Schedules for Construction Contracts 156 - Public Traffic 157 - Soil Erosion Control 171 - Weed and Disease Prevention 201 - Clearing and Grubbing 204 - Excavation and Embankment 208 - Structure Excavation and Backfill For Selected Major Structures 251 - Riprap 308 - Minor Crushed Aggregate 556 - Bridge Railing 571 - Prefabricated Bridges 705 - Rock

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-14 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-14 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 http://www.nist.gov/ 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.

R ig ht of

W ay

R oa ds id e R oa ds id e

C le ar in g W id th

R oa dw ay

C le ar in g Li m it

X Y

G ro un d

Li ne

Tr av el ed

W ay C L

B er m S ur fa ce C ou rs e B as e

C ou rs e

Fi ll

S lo pe

B ac k Sl op e

D ra in ag e D itc h

G ro un d

Li ne

S ub gr ad e

R oa d Be d

S ha pe s an d di m en si on s w ill va ry to fi t l oc al c on di tio ns

S ee d ra w in gs fo r t yp ic al s ec tio ns

X a nd Y d en ot e cl ea rin g ou ts id e of ro ad w ay

N ot e:

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 103.00_nat_us_02_16_2005

Deletions

Delete all but subsection 103.01 Intent of Contract.

104 - Control of Work 104.00_nat_us_02_17_2005

Deletions

Delete sections 104.01, 104.02, and 104.04.

104.06_nat_us_02_17_2005

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_nat_us_05_11_2004

105.02 Material Sources.

105.02(a) Government Provided Sources.

Comply with the requirements of 30 CFR 56, subparts B and H. Use all suitable material for aggregate regardless of size unless otherwise designated. When required, re-establish vegetation in disturbed areas according to section 625.

105.02_forest_05_11_2006

105.02 Material Sources.

Add the following before the first paragraph:

Sources have been designated for this project as follows:

Crushed Aggregate Source - Contractor Furnished - There is no available Government source for Crushed Aggregate for this project. The Forest Service has not obtained any commitment for price, quantity, quality, or availability for commercial material. Bidders must make their own determinations regarding acquisition of Crushed Aggregate that meets the requirements of the project.

Prior to development of a new Crushed Aggregate source and/or use of materials from a previously developed Crushed Aggregate source pit, the pit site and/or developed Crushed Aggregate material shall be approved by the CO and the Contractor shall certify the pit and material derived from the pit is free of noxious weeds listed on the "All States Noxious Weeds List”.

Borrow Source – Government Furnished – Salvage suitable borrow material from the excavation. If required, additional borrow material may be obtained from locations designated by the Contracting Officer. As an alternative, the Contractor can import the required material from a commercial source in the project vicinity.

The commercial source shall be approved by the CO and the Contractor shall certify the pit and material derived from the pit is free of noxious weeds listed on the "All States Noxious Weeds List”. No additional compensation will be made if the Contractor elects to use a commercial source in lieu of the Government Furnished material.

Waste Site - Government Furnished - Unsuitable and excess excavated material shall be removed from National Forest Land in accordance with FP-14 Section 203.05(a).

Vegetative debris (slash) shall be disposed of at the project site. The exact location for disposal of vegetative debris will be AS STAKED ON THE

GROUND.

All other materials, including the existing bridge, designated for removal and disposal must be removed from National Forest Land in accordance with Section 203.05(a).

Temporary Stockpile Area/Staging Area. – The roadway area adjacent to the project site will be available for a temporary stockpile area/staging area. The exact location will be AS STAKED ON THE GROUND. The Contractor shall determine the extent and usability of these areas.

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 107.05_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_us_02_16_2005

108 Delete.

Delete Section 108 in its entirety.

109 - Measurement and Payment 109.00_nat_us_02_17_2005

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_nat_us_02_23_2005

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”.

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.

109.02_0114_us_05_16_2005

109.02 Measurement Terms and Definitions.

Add the following definition:

(q) Actual quantity. (AQ) These quantities are determined from measurements of completed work.

151 - Mobilization 151.01_0105_us_02_23_2005

151.01 Description

Add the following at the end of the last sentence:

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

152 - Construction Survey and Staking

Description

152.01_forest_05_11_2006

152.01 Description.

Vertical Survey control shall be established from the top of the abutment columns and top of piers. Horizontal control shall be taken from the existing bridge centerline at the beginning and ending points. It is the Contractor's responsibility to perform any further staking, surveying, and control as required once construction has commenced.

152.00_nat_us_08_05_2005

152.01(c) Material.

Use required stake dimensions and materials. Pre-paint the top 2 inches of all stakes and lath, or mark them with plastic flagging. Use designated colors for paint or flagging.

Mark all stakes with a stake pencil that leaves a legible imprint, or with waterproof ink.

Do not use aerosol spray paints.

Use moisture-resistant paper for survey notes. Keep notes in books with covers that will protect the contents and retain the pages in numerical sequence.

Construction Requirements

152.02 General.

Delete the first two sentences.

Add the following:

When indicated on the plans, a preliminary survey line has been established on the ground. The project location line is established by offsets from this preliminary line.

Delete second sentence in second paragraph and replace with the following:

Reestablish missing reference, control lines, or stakes as necessary to control subsequent construction staking operations

152.03 Survey and Staking Requirements.

(b) Roadway cross-sections.

Replace the first two sentences with the following:

Take roadway cross-sections normal to centerline. When the centerline curve radius is less than or equal to 200 feet, take cross-sections at a maximum centerline spacing of 25 feet. When the centerline curve radius is greater that 200 feet take cross-sections at a maximum centerline spacing of 80 feet.

c) Slope Stakes & References:

Replace section with the following:

Slope stakes and references. When required, locate slope stakes on designated portions of the road. Locate the slope stake catch points and use them to establish clearing limits and slope stake references.

Mark slope stakes with the station, the amount of cut or fill, the horizontal distance to centerline, and the slope ratios.

Place slope reference stakes at least 10 feet outside the clearing limit and mark with the offset distance to the slope stake. Place sight stakes when required.

Prior to clearing and grubbing operations, move the slope stake outside the clearing limit to the slope reference stake. After clearing and grubbing and before excavation, reset the slope stakes in their original position.

Use the designated method to establish the slope stake catchpoint.

• Method I—Computed Method. Use the template information shown in the plans or other Government-provided data to calculate the actual location of the catchpoint. The slope stake “catchpoint distance” provided may be used as a trial location to initiate slope staking. Recatch slope stakes on any section that does not match the staking report within the tolerances established in Table 152-2.

• Method II—Catchpoint Measurement Method. Determine the location of slope stake catchpoints by measuring the catchpoint distances shown in the plans or other Government-provided data.

(d) Clearing and grubbing limits.

Add the following:

Establish clearing limits on each side of the location line by measuring the required horizontal or slope distances shown in the stake notes. Mark the clearing limits with flagging or tags on trees to be left standing, or on lath. Make markings intervisible, and no more than 90 feet apart.

After establishing clearing limits, move the location line stake outside the clearing limits for station identification purposes, and mark it with horizontal distance to location line

(e) Centerline reestablishment.

Replace with the following:

Reestablish centerline from instrument control points. The maximum spacing between centerline points is 25 feet when the centerline curve radius is less than or equal to 200 feet. When the centerline curve radius is greater than 200 feet, the maximum distance between centerline points is 80 feet.

(g) Culverts.

Replace subsection with the following:

Set culvert reference stakes at all culvert locations. Set a culvert reference stake on the centerline of the culvert 10 feet from each end or beyond the clearing limit, whichever is greater. Record the following on culvert reference stakes:

(1) Diameter, actual field measured length, and type of culvert.

(2) The vertical and horizontal distance from the reference stake to the invert at the ends of the culvert.

(3) Station of actual point where culvert intersects centerline.

When required, stake headwall for culverts by setting a hub with a guard stake on each side of the culvert on line with the face of the headwall. Perform this work after clearing is completed.

152.03 (l) Miscellaneous Survey and Staking.

Add the following:

(11) Cattleguards

(12) Drain Dips

(13) Erosion Control Measures

Replace Table 152-1 with the following two tables:

Table 152-1 Tolerances for reestablishing P-line, traverse, and elevations.

Precision

Class

Minimum Position Closure

Angular Accuracy

L-Line Tangent Control

Pointsa (±)

Vertical Closureb

A (Bridges) 1/10,000

2 sets, direct/reverse 10 second rejection limit

N/A 0.02 ft or 0.02ft/1000ftc

B 1/5,000 2 sets, direct/reverse 20 second rejection limit

0.1 ft 0.02 ft or 0.02ft/1000ftc

C 1/1,000 1 set, direct/reverse 1 minute rejection limit

0.2 ft 0.5ft/1000ftc

D 1/300 Foresight and backsight; 15 minute rejection limitc

0.4 ft 1.0ft/1000ftc

E 1/100 Foresight and backsight; 30 minute rejection limitc

0.8 ft 1.0ft/1000ftc

a. Accuracy of offset measurement.

b. Determine vertical closures at intervals not to exceed 2000 ft as measured along centerline.

c. Use greater value.

(1) Precision class for this project shall be “Class A”.

Table 152-2 Cross section and slope stake tolerances.

Item Tolerances

A B C D E

Allowable deviation of cross-section line projection from a true perpendicular to tangents, a true bisector of angle points, or a true radius of curves

(±)2o (±)3o (±)3o (±)5o (±)5o

Take cross-sections topography measurements so that variations in ground from a straight line connecting the cross-section points will not exceed

0.5 ft 1.0 ft 2.0 ft 2.0 ft 3.0 ft

Horizontal and vertical accuracy for cross-sections, in feet or percentage of horizontal distance measured from traverse line, whichever is greater.

0.1 ft or 0.4%

0.15 ft or 0.6%

0.2 ft or 1.0%

0.2 ft or 1.0%

0.3 ft or 1.0%

Horizontal and vertical accuracy for slope stake, slope stake references, and clearing limits. In feet or percentage of horizontal distance measured from centerline or reference stake, whichever is greater.

Slope reference stakes and slope stakes. 0.1 ft or 0.4%

0.15 ft or 0.6%

0.2 ft or 1.0%

0.2 ft or 1.0%

0.3 ft or 1.0%

Clearing limits 1.0 ft 1.0 ft 1.0 ft 1.5 ft 2.5 ft

(1) Tolerance class for this project shall be “Class A”.

152.05_forest_05_11_2006

152.05 Measurement.

Delete this Subsection and replace with the following:

Do not measure Construction Survey and Staking for payment.

152.06_forest_05_11_2006

152.06 Payment.

Delete this Subsection and replace with the following:

Do not measure Construction Survey and Staking for payment. Compensation is made as an indirect payment to Item 208-54, Structure Excavation and Backfill.

154 – Contractor Sampling and Testing

154.01_forest_05_11_2006

154.01 Description.

Delete this Subsection and replace with the following:

This work consists of obtaining samples for testing, performing the tests, and reporting the test results.

154.03_forest_05_11_2006

154.03 Testing.

Delete the first sentence and replace with the following:

Perform all tests required by the Sampling and Testing Requirements tables at the end of each Section.

154.06_forest_05_11_2006

154.06 Measurement.

Delete this Subsection and replace with the following:

Do not measure Contractor Sampling and Testing for payment.

154.07_forest_05_11_2006

154.07 Payment.

Delete this Subsection and replace with the following:

Do not measure Contractor Sampling and Testing for payment. Compensation is made as an indirect payment.

155 - Schedules for Construction Contracts 155.00_nat_us_05_11_2004

155 Delete.

Delete Section 155 in its entirety.

156 - Public Traffic 156.00_nat_us_04_06_2005

Delete Section 156 in its entirety and replace with the following:

156.01 This work consists of controlling and protecting public traffic adjacent to and with the project.

Material

156.02 Conform to the MUTCD and the following Sections and Subsections:

Construction sign panels 633 Retroreflective sheeting 718.01 Temporary concrete barrier 618 Temporary plastic fence 710.11 Temporary traffic control devices 718.22

156.03 General. Unless otherwise provided for in Table 156-1, keep existing roads open to all traffic during road improvement work, and maintain them in a condition that will adequately accommodate traffic.

Perform no work that interferes or conflicts with traffic or existing access to the roadway surface until a traffic control plan has been approved. Post construction signs and traffic control devices in conformance with MUTCD. All required signs will be in place and approved prior to beginning work on project.

If the Contractor agrees in writing to allow public traffic to use a new road being constructed prior to completion, it will be considered an existing road for traffic control purposes.

156.04 Temporary Traffic Control. Install and maintain temporary traffic control devices adjacent to and within the project as required by the approved traffic control plan and the MUTCD. Install and maintain traffic control devices as follows:

(a) Furnish and install traffic control devices before the start of construction operations.

(b) All detours outside of clearing limits will be approved in writing by the Contracting Officer as part of the traffic control plan.

(c) Install only those traffic control devices needed for each stage or phase.

(d) Relocate temporary traffic control devices as necessary.

(e) Remove devices that no longer apply to the existing conditions.

(f) Immediately replace any device that is lost, stolen, destroyed, or inoperative.

(g) Keep temporary traffic control devices clean.

(h) Remove all temporary traffic control devices upon contract completion or when approved.

(i) When required, use flaggers certified by the American Traffic Safety Services

Association, the National Safety Council, the International Municipal Signal Association, a state agency, or other acceptable organization. Perform the work described under MUTCD Part 6. Use type III, VII, VIII, or IX retroreflective sheeting on flagger paddles. Do not use flags. Flaggers must wear high visibility safety apparel as required by MUTCD 6E.02.

156.05 Temporary Closures. Road segments may be closed as shown in Table 156-1.

The maximum consecutive days of closure shall be followed by a minimum number of consecutive days open to traffic as shown. Maintain traffic control devices during closure period(s). Appropriate barricades and signs will be erected and maintained as shown in the traffic control plan or as otherwise designated.

Prior to closing roads during construction, give written notice to the Contracting Officer at least 10 days in advance.

Table 156-1 – Temporary Road Closures

Road Number

From Terminus To Terminus Maximum Consecutive

Days of Closure

Minimum Consecutive Days Open

Acceptance. Public traffic work will be evaluated under Subsection 106.02.

Measurement and Payment

156.07 Do not measure Public Traffic for payment. Compensation is made as an indirect payment.

157 - Soil Erosion Control 157.03_forest_05_11_2006

157.03 General.

Delete the first two paragraphs and add the following:

Submit a Dewatering and Sediment 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 14 days before operations begin to the Contracting Officer for approval.

Reflect in the erosion control plan special concerns and measures necessary to protect resources and government improvements. Include:

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

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

3. For work in stream channels with running water a detailed dewatering plan.

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

5. Describe what monitoring will take place.

Add to the third paragraph:

All sediment barriers must remain in place for the duration of the project and be maintained in proper working condition. Material shall be removed from behind barriers prior to their final removal. Upon completion of construction at the site, all temporary erosion control measures, dewatering materials and equipment are to be removed from Government property.

The Contractor shall adhere to the following standard practices:

a) The Contractor shall operate in a manner that will protect aquatic organisms.

b) Construct the Dewatering and Sediment Control according to the Contractor’s approved plan.

c) Maintain the road in a manner that prevents direct entry of surface drainage into the stream.

d) Construct permanent and temporary control features to intercept sediments.

e) Any sanitation facilities established by the Contractor shall be located as designated by the CO.

157.11__forest_05_11_2006

157.11 Temporary Turf Establishment.

Delete this Subsection.

171 - Weed and Disease Prevention 171.00_nat_us_03_30_2005

171.01 This work consists of washing and treating construction equipment to remove seeds, plants, and plant fragments from the equipment before the equipment is used on National Forest System lands.

Material

171.02 Conform to the following Subsection:

Water 725.01

171.03 General . Notify the CO in writing at least 15 days before moving any construction equipment onto National Forest System lands. Construction equipment does not include cars, pickup trucks, and other vehicles that regularly travel between the construction site and areas outside of National Forest System lands.

Perform all work at a location designated on the plans or other locations approved in writing. Provide the CO with an opportunity to monitor the washing and inspection.

171.04 Equipment. Use a high pressure washing system.

For work on National Forest System lands, use a washing system that traps all wash water and either stores it for removal from National Forest System lands or recycles the water for continued use. If the equipment recycles the water, provide adequate filters for seed removal. Dispose of the filter material and removed seeds in an approved manner.

Do not mix soaps, detergents, or other chemicals with the wash water.

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

171.05 Washing. Wash the sides, tops, and undercarriages of all construction equipment. Remove all seeds, plants, plant fragments, dirt, and debris from the construction equipment.

171.06 Inspection. Inspect the washed construction equipment, including the undercarriage, to ensure that the washing removed the dirt, debris, and seeds from the construction equipment. Rewash the construction equipment as necessary or as directed.

171.07 Acceptance. Weed prevention will be evaluated under Subsection 106.02.

Measurement

171.08 Do not measure weed prevention for payment.

Payment

171.09 Include all costs associated with the Section 171-Weed Prevention in the unit price for Section 151-Mobilization.

201 - Clearing and Grubbing 201.01_nat_us_02_18_2005

201.01 Description

Replace with the following

This work consists of clearing and grubbing within clearing limits and other designated areas.

201.03_forest_04_29_2008

201.03 General.

Trees to be removed shall be marked in the field.

201.04_nat__us02_22_2005

201.04 Clearing.

Delete subsection (d) and replace with the following:

(d) Do not cut vegetation less than 3 feet tall and less than 3 inches in diameter, that is within the clearing limits but beyond the roadway and not in a decking area, and that does not interfere with sight distance along the road.

Add the following:

(e) Trim branches of remaining trees or shrubs to give a clear height of 14 feet above the roadbed unless otherwise indicated. Trim tree limbs as near flush with the trunk as practicable.

201.06_nat_us_02_23_2005

201.06 Disposal.

Delete the first sentence of this subsection and substitute the following:

All merchantable timber within the clearing limits on either private or Government land remains the property of the landowners. Deck according to 201.04(f) on each owner's property adjacent to the road in approved locations.

201.08___forest_05_11_2006

201.08 Measurement.

Delete this Subsection and replace with the following:

Do not measure Clearing and Grubbing for payment.

201.09___forest_05_11_2006

201.09 Payment.

Delete this Subsection and replace with the following:

Do not measure Clearing and Grubbing for payment. Compensation is made as an indirect payment to Item 208, Structure Excavation and Backfill.

204 - Excavation and Embankment 204.02_forest_05_11_2006

204.02 Definitions.

(a) Excavation Delete the following definition and substitute the following:

(3) Borrow Excavation: Embankment material necessary to construct the bridge approaches and roadways to the lines and grades AS SHOWN ON THE PLANS or AS STAKED ON THE GROUND shall be obtained by utilizing suitable surplus excavation from the bridge construction and the borrow source when shown. Borrow excavation includes unclassified borrow, select borrow, and select topping.

204.05_nat_us_02_18_2005

204.05 Conserved Topsoil

Delete the entire paragraph.

204.09_nat_us_03_02_2005

204.09 Preparing Foundation for Embankment Construction.

Delete subsection (a) and replace it with the following:

(a) Embankment less than 4 feet high over natural ground. When designated, remove topsoil and break up the ground surface to a minimum depth of 6 inches by plowing or scarifying. Compact the ground surface according to Subsection 204.11.

204.10_nat_us_03_02_2005

204.10 Embankment Construction.

Add the following:

Obtain written approval before beginning construction of embankments over 6 feet high at subgrade centerline.

(a) General.

Delete the third paragraph and add the following:

Compact embankment side slopes flatter than 1V:1.75H with a tamping type roller or compactor or by walking with a dozer. For slopes 1V:1.75H or steeper, compact the slopes as construction of the embankment progresses.

204.11_nat_us_04_11_2005

204.11 Compaction.

Delete the first paragraph and replace it with the following:

For compaction according to method (a), (b), or (c), use AASHTO T 27 to determine the amount of material retained on a Number. 4 sieve. For compaction methods (d) or (e) no sieve test is required.

Add the following compaction methods:

(d) Layer Placement Method (Hauling and Spreading Equipment). Place material by end dumping to the minimum depth needed for operation of spreading equipment. Level and smooth each embankment layer before placing the next layers. Operate hauling and spreading equipment uniformly over the full width of each layer. Construct a solid embankment with adequate compaction by working smaller rock and fines in with the larger rocks to fill the voids, and by operating hauling and spreading equipment uniformly over the full width of each layer as the embankment is constructed.

(e) 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.

Compaction method for this project shall be Method E.

204.13_nat_us_03_02_2005

204.13 Sloping, Shaping, and Finishing.

Delete section (d) and add the following:

(d) Finishing. For surfaced roads, remove all material larger than 6 inches from the top 6 inches of the roadbed. For all roads, finish the roadbed to be smooth and uniform, and shaped to conform to the typical sections. Remove unsuitable material from the roadbed and replace it with suitable material. Finish roadbeds to the tolerance class shown in table 204-2.

Ensure that the subgrade for both surfaced and unsurfaced roads is visibly moist during shaping and dressing. Scarify to 6 inches below the bottom of low sections, holes, cracks, or depressions and bring back to grade with suitable material. Maintain proper ditch drainage.

For unsurfaced roads, use one of the following methods to finish the roadbed:

(1) Method A. Remove all material larger than 6 inches from the top 6 inches of the roadbed and replace with suitable material.

(2) Method B. Use a vibratory grid roller or approved equal with a minimum weight of 10 tons. Roll at least 5 full-width passes or until visible displacement ceases.

(3) Method C. For roads designated as Construction Tolerance Class K, L, or M, finish the roadbed by spreading the excavation. Eliminate rock berms.

Add Table 204-2—Construction Tolerances:

Table 204-2 Construction tolerances.

Tolerance Class(a)

A B C D E F G H I J K L M Roadbed width (ft) +0.5 +0.5 +1.0 +1.0 +1.0 +1.0 +1.5 +1.0 +2.0 +2.0 +2.0 +2.0 +2.0

Subgrade elevation

(ft)

+0.1 +0.2 +0.2 +0.5 +0.5 +1.0 +1.0 +1.5 +2.0 +3.0 +2.0 +3.0 (c)

Centerline alignment (ft)

+0.2 +0.2 +0.5 +0.5 +1.0 +1.0 `+1.5 +1.5 +2.0 +3.0 +3.0 +5.0 (c)

Slopes, excavation, and embankment (% slope(b)

+3 +5 +5 +5 +5 +5 +10 +10 +10 +10 +20 +20 +20

a. Maximum allowable deviation from construction stakes and drawings.

b. Maximum allowable deviation from staked slope measured from slope stakes or hinge points.

c. Unless otherwise shown the centerline alignment and subgrade elevation, as built, have no horizontal curves with a radius of less than 80 feet, and no vertical curves with a curve length of less than 80 feet when the algebraic difference in the grade change is less than 10 percent, or a curve length of less than 100 feet when the algebraic difference of the grade change is greater than or equal to 10 percent. The centerline grade is not to exceed 20 percent in 100 feet of length.

d. Tolerance class for this project shall be “Class B”.

204.13_nat_us_03_02_2005

204.13 Sloping, Shaping, and Finishing.

(a) Sloping.

Add the following:

Slope rounding is not required on tolerance class D though M roads.

204.14_nat_us_03_02_2005

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 legally off of the project.

204.15_nat_us_03_02_2005

Table 204-1 Sampling and Testing Requirements.

Add the following note to the table:

(2) When compaction methods (d) or (e) are used AASHTO M 145, T 99, T 180, and T 310 are not required for earth embankment test methods.

204.16_1005_us_04_01_2005

204.16 (b) Unclassified borrow, select borrow, and select topping.

Add the following:

When contract quantities are designated in the schedule as method of measurement estimate the borrow excavation quantity from design data based on prism cubic yard compacted in final position, in the embankment.

The quantity of material hauled will be based on the quantity of borrow excavation shown in the schedule. Measure haul distance between the center of the material source and the center of embanked material. Compute haul by analytical methods as determined by CO.

Haul from non-designated material source requested by the Contractor will be considered haul from Contractor-furnished sources with an adjustment in contract price, in accordance with applicable contract provisions.

Haul distance from a Contractor-furnished source will be measured as the haul distance from the designated material source if the haul distance from the Contractor-furnished material source is greater than the haul distance from the designated source.

Haul distance from a Contractor furnished-sources will be measured as the haul distance from the Contractor-furnished material source if the haul distance from the Contractor-furnished source is less than the haul distance from the designated source.

204.16_forest_05_11_2006

204.16 Measurement.

Delete this Subsection and replace with the following:

Do not measure Excavation and Embankment for payment.

204.17_forest_05_11_2006

204.17 Payment.

Delete this Subsection and replace with the following:

Do not measure Excavation and Embankment for payment. Compensation is made as an indirect payment to Item 208-54, Structure Excavation and Backfill.

208 – Structure Excavation and Backfill for Selected Major Structures

208.02_forest_05_11_2006

208.02 Material.

Add the following:

Conform to the following Section and Subsections:

Aggregate 703.05

208.04_forest_05_11_2006

208.04 General.

Delete the second paragraph.

Add the following:

A plan of work shall be submitted in writing and shall describe the procedures, methods, materials, and equipment the contractor proposes to use to conduct his excavating operations, including details of shoring and cribbing. Submit the plan of work at least 14 days before operations begin to the Contracting Officer for approval.

Add the following to the sixth paragraph:

Structural backfill necessary to construct the bridge approaches to the lines and grades AS SHOWN ON THE PLANS or AS STAKED ON THE GROUND shall be obtained by utilizing suitable surplus excavation from the bridge construction and/or importing suitable structural backfill from the designated borrow source and/or commercial source.

251 - Riprap 251.02_0402_us_03_29_2005

251.07 Acceptance.

Delete sampling and testing requirements for all riprap.

308 – Minor Crushed Aggregate 308.01_forest_05_11_2006

308.01 Description.

Delete the second sentence:

308.05_forest_05_11_2006

308.05 Compacting and Finishing Crushed Aggregate.

(a) Roadway aggregate Delete following definition for Method 2 and replace with the following:

Determine the maximum density of the mixture according to AASHTO T99. Compact each layer full width. Compact each layer to 95 percent of maximum density. Determine the inplace density and moisture content according to AASHTO T 310.

308.06_forest_05_11_2006

308.06 Acceptance.

Table 308-1 Sampling and Testing Requirements.

Add the following note to the table:

(1) For crushed aggregate compaction, AASHTO T 310, change the sampling frequency to 1 per 30 cubic yards.

308.07_forest_05_11_2006

308.07 Measurement.

Add the following: Measure aggregate by cubic yard compacted in place when payment is by contract quantities.

556 - Bridge Railing 556.01_1005_us_05_23_2005

556.01 Replace the first sentence with the following:

This work consists of furnishing, erecting, removing, and installing new bridge railing and approach railing.

556.02 Add the following to the table:

Guardrail Section 617

556.05 Steel Railing Replace this subsection with the following:

556.05 Steel Railing and Approach Railing. Construct bridge railing and approach railing according to Sections 555 and 617. Approach railing includes terminal ends, railing, and transitions to bridge railing. Provide railing as shown on plans.

Use hand methods to clean erected steel railing of all oil, dirt, grease, mortar, and other foreign substances.

571 - Prefabricated Bridges 308.01_forest_03_11_2005

571.01 This work consists of designing, fabricating, delivering, and installing a prefabricated modular bridge superstructure AS SHOWN IN THE PLANS. The work includes appurtenances such as anchorages, connections, curbs, decking, bearings, shop drawings, sampling and testing, and other incidentals as required.

Materials

571.02 Requirements. Furnish materials that meet the requirements specified in the following sections:

Bridge Railing 556 Structural Metal 717 Prestressed Concrete 553 Reinforcing Steel 554 Steel Structures 555 Structural Concrete 552 Timber Structures 557 Material for Timber Structures 716

Concrete compressive strength, structural steel tensile strength, finish and designation, timber species, grade, and treatment, and other material specifications shall be as listed in the contract documents or if not listed in the contract documents, shall be taken from manufacturer’s drawings that have been approved by the CO prior to fabrication.

Maintain adequate records of all inspections and tests. Submit quality control records as required in Section 153.

571.03 Design Requirements. For required loadings use the most recent AASHTO LRFD Bridge Design Specifications and the design loads shown on the drawings.

When design of the structure is required, submit plans and calculations signed by a professional engineer registered in the state where the bridge will initially be located or in the state where the fabricator’s offices are located.

Use durable materials to allow removal, transportation, and re-installation without using specialized construction equipment. When required, design bridges to allow transportation by air or pack animals and complete construction by manual labor. Use design techniques and fabrication methods to minimize field installation difficulties.

Fabricate primary components from steel.

Provide permanent lifting devices on main superstructure to facilitate efficient installation and removal of these items. Place lifting devices so as not to interfere with traffic.

571.04 Design Drawings. When furnishing a prefabricated bridge superstructure, submit design drawings, calculations, or shop drawings at least 21 days in advance of the start of fabrication to allow time for review and correction of any changes and approval by the CO. Include plan, elevation, and section views of the modular bridge superstructure, dimensions of all components, welding and connection details, and general and specific notes regarding design and construction.

When Government-furnished prefabricated bridge superstructure components are specified, material lists, installation information, and manufacturer’s instructions will be furnished by the Government.

571.05 General. Perform excavation, backfill, and embankment work under Sections 208- Structural Excavation, 251 Riprap, and 308 Minor crushed aggregate.

Dispose of all debris resulting from operations in accordance with Section 203, Method

(a) Remove from project.

571.06 Performance. Notify the CO at least 7 days before delivering the bridge.

If the precast /prestressed concrete superstructure components are not installed immediately upon delivery to the project site, provide appropriate equipment and labor to unload and stack, support, and store all material at the delivery point. Support and stack all components to prevent damage. Furnish and install blocking to support all components at least 12 inches above the ground.

Measurement

571.12 Measure the Section 571 items listed in the bid schedule according to Subsection 109.02.

Payment

571.13 The accepted quantities, measured as provided in Subsection 109.02 and above, will be paid at the contract price per unit of measurement for the Section 571 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05

705 - Rock

705.07_nat_us_04_17_2008

705.07 Streambed Simulation Rock.

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

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

Bed Class 100% passing 84% passing 50% passing 16% passing 10% passing 2 5 2 3/4 1/4 No. 10 4 10 4 1 3/4 1/2 No. 10 6 14 6 2 1/2 3/4 No. 10 8 22 8 3 1 No. 10 10 24 10 4 1 No. 10 12 30 12 5 1 1/2 No. 10 14 36 14 6 1 3/4 No. 10 16 42 16 7 2 No. 10 20 48 20 8 3 No. 10 24 60 24 10 3 No. 10 36 72 36 14 4 No. 10 48 96 48 18 6 No. 10