02_Supplemental Specs_6.28.23.pdf

101.01_nat_04_02_2004

101 - Terms, Format, and Definitions

101.01 Meaning of Terms.

Add the following:

Delete all references in FP-14 to Transportation Acquisition Regulations (TAR). For Timber Sales, delete all references in FP-14 to Federal Acquisition Regulations (FAR).

101.03_nat_04_02_2004

101.03 Abbreviations.

Add the following to (a) Acronyms:

AFPA

MSHA

NEC

WCLIB

WWPA

ALSC

WWPI

NLGA

NSLB

NLMA

RIS

SPIB

American Forest and Paper Association

Mine Safety and Health Administration

National Electrical Safety Code

West Coast Lumber Inspection Bureau

Western Wood Products Association

American Lumber Standards Committee

Western Wood Preservers Institute

National Lumber Grades Authority

Northern Softwood Lumber Bureau

Northeastern Lumber Manufacturer’s Association

Redwood Inspection Service

Southern Pine Inspection Bureau

101.04_nat_04_29_2004

101.03 Abbreviations.

Add the following to (b) SI Symbols:

mp Milepost ppm Part Per Million

101.04 Definitions.

Delete the following definitions and substitute the following:

Bid Schedule--The Schedule of Items.

Bridge--No definition.

Contractor--The individual or legal entity contracting with the Government for performance of prescribed work. In a timber sale contract, the contractor is the “purchaser”.

Culvert--No definition.

Right-of-Way--A general term denoting (1) the privilege to pass over land in some particular line (including easement, lease, permit, or license to occupy, use, or traverse public or private lands), or (2) Real property necessary for the project, including roadway, buffer areas, access, and drainage areas.

Add the following:

Adjustment in Contract Price--“Equitable adjustment,” as used in the Federal Acquisition Regulations, or “construction cost adjustment,” as used in the Timber Sale Contract, as applicable.

Change--“Change” means “change order” as used in the Federal Acquisition Regulations, or “design change” as used in the Timber Sale Contract.

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

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

Department of Agriculture.

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

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

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

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

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

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

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

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 S lo pe

D ra in ag e D itc h

G ro un d

Li ne

S ub gr ad e

R oa d B ed

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_03_27_2004

102 Delete

Delete Section 102 in its entirety.

103 - Scope of Work 103.00_nat_04_02_2004

103 Delete Delete all but subsection 103.01 Intent of Contract.

104 - Control of Work 104.01_nat_03_27_2004

104 Control of Work.

Delete sections 104.01 and 104.02.

104.03_nat_03_23_2004

104.03 Specifications and Drawings.

104.03(c) As-built Drawings.

Replace with 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

• Locations 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.

104.04 Coordination of Contract Documents.

Replace with the following:

The special contract requirements, standard specifications, and plans are contract documents. A requirement in one document is binding as though occurring in all contract documents. The contract documents are intended to be complementary and to describe and provide for a complete contract. In case of discrepancy, calculated and shown dimensions govern over scaled dimensions. The contract documents govern in the following order:

(a) Special contract requirements;

(b) Standard specifications; and,

(c) Plans.

104.05_nat_03_23_2004

104.06 Use of Roads by Contractor.

Add section 104.06 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.

104.07 Other Contracts.

Add section 104.07 The contractor shall schedule activities to coordinate and cooperate with other contracts, when applicable.

105 - Control of Material 105.02_nat_03_26_2004

105.02 Material Sources.

105.02(a) Government Provided Sources.

Add the following:

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(c) Contractor-located sources.

Add the following:

All certifiable material (e.g., soil, gravel, seed, mulch, straw, wattles, etc.) transported onto National Forest System land or incorporated into the work will be weed-free. The Contracting Officer may request written documentation of methods used to determine the weed-free status of any and all materials furnished by the contractor. Contractor-provided expertise and methods to establish weed-free status must be appropriate for the weeds of concern in the local area.

All seed, mulch, and erosion control materials must be certified weed free. Submit weed free certification to CO no less than 7 days prior to beginning work.

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 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 restrictive.

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. Three methods of determining conformity and accepting work are described in Subsections 106.02 to

106.04 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.

106.05 Statistical Evaluation of Work and Determination of Pay Factor Replace the entire section with the following:

Statistical evaluation of the work will not be required. All specifications referring to this Subsection shall instead be referred to Subsections 106.02 through 106.04 as appropriate for the work performed.

106.07_nat_04_02_2004

106.07 Partial and Final Acceptance

Delete subsection 106.07.

107 - Legal Relations and Responsibility To the Public

107.02 Protection and Restoration of Property and Landscape.

Work in the South Platte River is not restricted except for high water periods.

107.05 Responsibility for Damage Claims.

Delete subsection 107.05.

107.06 Contractor’s Responsibility for Work.

Delete the following:

“except as provided in Subsection 106.07”.

107.08_nat_03_24_2004

107.08 Sanitation, Health, and Safety.

Add the following:

Perform all operations in a prudent, conscientious, safe and professional manner. Ensure that all personnel involved in handling and packaging the hazardous waste are trained for the level of expertise required for the proper performance of the task and, in particular, in the areas of chemical incompatibility, general first aid procedures, and spills. Provide handling and personal protective equipment appropriate to ensure safe handling of the hazardous waste according to 29 CFR 1910.120). Notify the Forest Service of all hazardous material that may be brought onto the National Forest.

107.09 Legal Relationship of the Parties.

Delete subsection 107.09.

107.10_nat_03_24_2004

107.10 Environmental Protection.

Delete the first and second sentences of subsection (b) and replace with the following:

Submit a Hazardous Spill Plan at least 14 days prior to beginning work.

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_03_24_2004

Delete Section 108 in its entirety.

109 - Measurement and Payment

109.01 Measurement of Work

Replace the sixth paragraph with the following:

Submit measurement notes to the CO as directed. For lump sum items, submit documentation to support invoiced progress payment.

109.02_nat_03_25_2004

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.

(c) Cubic Yard Delete methods (2) and (4).

Measurement Terms and Definitions.

Replace 109.02(p) with 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.

109.05 Scope of Payment.

Replace the last paragraph with the following:

The quantities shown in the bid schedule are contract quantities unless designated otherwise.

Limit pay quantities to those shown on the bid schedule or otherwise authorized before performing the work. Payment will be made for contract quantities unless designated otherwise on the bid schedule. For designated quantities to be measured for payment and for quantities to be adjusted according to Section 109.02(b), measure quantities as directed in each associated Standard Section or Special Contract Requirement.

109.06_nat_03_24_2004

Delete the following entire subsections:

109.06 Pricing of Adjustments.

109.07 Eliminated Work.

109.08 Progress Payments.

109.09 Final Payment.

152 - Contractor Survey and Staking 152.00_nat_04_29_2004

Description

152.04(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

152.05 Survey and Staking Requirements.

(b) 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 100 feet.

(d) Slope and reference stakes:

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.

(e) Clearing and grubbing limits.

Establish clearing limits on each side of the location line (road centerline) by measuring the required horizontal or slope distances shown on the plans. 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 (road centerline) stake outside the clearing limits for station identification purposes, and mark it with horizontal distance to location line (road centerline)

(f)(2) Grade finishing stakes.

Replace the 3rd paragraph with the following:

The maximum longitudinal 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 100 feet. The maximum transverse spacing between stakes is 12 feet. Use brushes or guard stakes at each stake.

(g) Culverts.

Delete this section

(h) Bridges.

Replace the subsection with the following:

Set adequate horizontal and vertical control, reference lines, and reference points for the detour road, temporary bridge, new bridge, abutment footings, abutment bearing seats, wing walls, and other major components.

Establish the bridge control, reference lines, and reference points by setting hubs and guard stakes beyond the clearing limits on each side of the channel. Record the following reference stakes:

(1) Reference points and lines for the detour road and temporary bridge.

(2) Station or coordinates of actual point where the abutment centerline bearing intersects the road centerline and the skew angle;

(3) Reference points and lines for the location of all footings, including elevations (for permanent and temporary bridge);

(4) Reference points and lines for wing walls and abutment walls locations including all elevations shown on the plans;

(5) Reference points and lines for all top of embankment stations and offsets;

(6) Reference points and lines for surface aggregate areas;

(7) Coordinates and elevations for riprap corners; and,

(8) Reference points, reference lines, and applicable offset distances for approach rail post locations.

Perform this work after clearing is completed and within the tolerances established in Table 152-1 under Precision Class A (Bridges). The structural component’s control is established as a local network and the tolerances are relative to that network.

(l) Miscellaneous Survey and Staking.

(11) Cattleguards

(12) Drain Dips

(13) Erosion Control Measures

(m) Roadway cross-sections.

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 than 200 feet take cross-sections at a maximum centerline spacing of 100 feet. Take additional cross-sections at significant breaks in topography and at changes in the typical section. Along ach cross-section, measure and record points at breaks in topography, but no further apart than 20 feet. Measure and record points to at least the anticipated slope stake and reference locations. Reduce all cross-section distances to horizontal distances from centerline.

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.

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.

Clearing limits

0.1 ft or 0.4%

1.0 ft

0.15 ft or 0.6%

1.0 ft

0.2 ft or 1.0%

1.0 ft

0.2 ft or 1.0%

1.5 ft

0.3 ft or 1.0%

2.5 ft

152.06 Payment

All surveying required to construct the approach rails shall not be measured separately, but shall be included in the following item:

15255 Grade finishing stakes, aggregate surface , tolerance A Lump Sum

153 - Contractor Quality Control 153.02_nat_03_24_2004

153.03 Contractor Quality Control Plan (QCP).

Add the following:

Submit proposals in writing for using alternate AASHTO or State approved test methods for approval. Alternate methods may be allowed based on documented equivalence to the method specified.

153.03 (c) Records.

Delete section.

153.05 Sampling and Testing

Add the following:

The contractor shall submit to the CO current documentation of the calibration and inspection of the testing equipment to be used for the project. The documentation shall include inspection date, inspector, calibration number, and the method of calibration. All testing equipment shall be calibrated and inspected tagged with the inspection date, inspector, and calibration number. The lab testing equipment and density testing equipment shall be calibrated and inspected on a yearly basis. The concrete testing equipment shall be calibrated and inspected every four months.

Material testing shall be performed at the frequency required in the subsection titled Acceptance within each applicable standard specification section.

The Contractor shall provide testing of the structural backfill material to determine optimum moisture content and maximum density according to the method required within each applicable standard specification section.

The Contractor shall provide testing of the structural backfill and surface aggregate materials to determine plasticity index, gradation, liquid limit, and/or soil classification.

The Contractor shall also provide testing of the surface aggregate material to determine Los Angeles abrasion, sodium soundness loss, durability indexes, and fractured faces for comparison with the requirements of the standard specifications.

All retests shall be performed at the Contractor expense.

153.07 Records and Quality Control Charts.

Replace section with the following:

Maintain complete testing and inspection records by pay item number and make them accessible to the CO.

155 - Schedules for Construction Contracts 155.00_nat_03_23_2004

Replace Section 155 with the following.

155.01 This work consists of scheduling and monitoring all construction activities. See FAR Clause 52.236-15 Schedules for Construction Contracts.

155.02 Submit 3 copies of a construction schedule at least 28 days before work commences.

156 - Public Traffic

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

Section 156.—PUBLIC TRAFFIC

156.01 Description.

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

156.02 Material.

Conform to the “Manual on Uniform Traffic Control Devices” (MUTCD) and applicable Subsections within the following Sections:

Permanent Traffic Control 633 Temporary Traffic Control 635 Traffic Signing and Marking Material 718

156.03 Roads to be Constructed.

Unless otherwise indicated within the plans, specifications, or Traffic Control and Work Restrictions section of the contract 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 plan for the satisfactory handling of traffic has been approved by the CO.

Specific requirements for temporary closures, detours, part-width construction, and access to adjacent or intersecting facilities will be indicated within the Work Restrictions and Traffic Control section of the contract. Post construction signs and traffic control devices in conformance with the MUTCD and the project requirements. Do not proceed with work on the project until all required signs and barricades are in place and approved by the CO.

Before shutting down any operations, take all necessary precautions to prevent damage to the project, such as temporary detours, approaches, crossings, or intersections; and provide for normal drainage and minimization of erosion. Leave all travel ways in a condition suitable for traffic.

When indicated on the plans, described in the specifications or listed in the Work Restrictions and Traffic Control section of the contract, road segments may be closed to all traffic during the period(s) when construction is in progress. If any of the listed roads are to be closed during construction operations, give the CO at least 14 days advance notice. Unless otherwise provided, when construction activity is in progress and total closure has not been provided for herein, delays may not exceed 60 minutes, in order to reasonably accommodate traffic.

156.04 Maintaining Roadways during Work.

A Traffic Control Plan must be submitted to the CO 14 days prior to beginning work.

Do not construct detours outside of the clearing limits or use alternate route detours without the approval of the

CO.

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

Traffic control devices and services will be evaluated under Section 635.

156.06 Measurement and Payment

See subsection 109.05. Measure traffic control under Section 635.

157 – Soil Erosion and Sediment Control

157.04 General.

Delete the entire subsection and replace with the following:

14 days prior to the start of construction, submit a written plan that provides permanent and temporary erosion control measures to minimize erosion and sedimentation during and after construction. Do not begin work until the necessary controls for that particular phase of work have been implemented. Do not modify the type, size, or location of any control or practice without CO approval. An alternate erosion control plan with all necessary permits may be submitted 30 days before intended use. Incorporate all permanent erosion control features into the project at the earliest practicable time, as outlined in the approved plan. When erosion control measures are not functioning as intended, immediately take corrective action.

157.18 Payment

Add the following:

The payment to furnish, install, remove any straw waddles including any incidental work shall be paid for under 157(05) Straw Waddle.

Replace Section (c) with the following:

(c) Payment of the remaining portion of the unit bid price will be paid upon final acceptance of the work.

Add this Specification in its entirety.

171 – Weed and Disease Prevention

Description

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

Construction Requirements

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.

203 – Removal of Structures and Obstructions

203.01 (Description) Replace with the following:

This work shall consists of the removal of existing guardrail.

Unless otherwise noted on the plans, all materials shall become the property of the contractor and removed from National Forest lands in accordance with all federal, state, and local laws.

203.03 Salvaging Material.

Delete the last sentence of the Section.

203.04 Removing Material

Replace the fourth paragraph with the following:

Remove structures and obstructions to the limits shown on the plans.

203.05 Disposing of Material

Replace the first sentence with the following:

Dispose of debris, unsuitable material, and excess material as directed by the CO according to the following methods:.

Add the following:

(e) Scattering. Scatter construction slash outside the clearing limits near the project site without damaging trees outside clearing limits and on Forest Service land as directed by the CO. Limb all logs. Place logs and stumps away from trees, positioned so they will not roll, and are not on top of one another. Cut tops and limbs into 3 foot lengths. Scatter other construction slash to reduce slash concentrations (i.e., piles less than 18 inches in height). Construction slash shall not be placed in lakes, meadows, streams, or the streams’ water influence zone. Immediately remove construction slash that interferes with drainage structures.

203.08 (Payment)

Disposal of construction slash will be compensated under the designated pay item in Section 201.

204 - Excavation and Embankment

204.03 (Material)

The embankment material shall be as shown on the plans and shall be obtained on-site from roadway excavation. If additional material is required, the borrow source is as shown on the plans. Any temporary stockpile locations shall be at stockpile location shown on the plans and as directed by the CO. Embankment material shall be constructed to tolerance class A as defined in Table 204-2.

204.07 Subexcavation.

Excavate material in the existing roadway as shown on the plans and as designated by the CO. Take cross-sections according to Section 152, but take no less than 3 per bridge approach as necessary to determine quantities. Prevent unsuitable material from becoming mixed with any aggregate surface material that is designated for reuse on the project. Stockpile aggregate surface material at locations directed by the CO.

Dispose of unsuitable material according to Subsection 204.14.

204.09_nat_04_04_2004

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_03_23_2004

204.10 Embankment Construction.

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 1:1.75 with a tamping type roller or by walking with a dozer. For slopes 1:1.75 or steeper, compact the slopes as construction of the embankment progresses.

add the following paragraph:

Construct to tolerance Class A as defined in Table 204-2.

204.11_nat_03_24_2004

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), (e), or (f) no sieve test is required.

Embankments within 36” of bridge abutments, piers, or back-walls shall be compacted according to method “(f)”. Embankments outside 36” of bridge abutments, piers, or back-walls shall be compacted according to method “(e).”

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.

(f) Structure Backfill for Selected Major Structures. Determine optimum moisture content and maximum dry density according to AASHTO T 99, Method C. Adjust the moisture content of the backfill material to a moisture content suitable for compaction.

Compact material placed in all layers to at least 95 percent of the maximum density. Determine the in-place density and moisture content according to AASHTO T310 or other approved test procedures.

Do not apply density requirements as measured by AASHTO T 310 to material incapable of being tested or compacted to maximum values determined by AASHTO T 99. For these materials, fill the voids around the rocky material in each layer with earth or other fine material. Compact each layer until there is no visible evidence of further consolidation.

204.13_nat_04_04_2004

204.13 Sloping, Shaping, and Finishing.

(a) Sloping.

Add the following:

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

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 plans.

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.

204.14_nat_03_23_2004

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 as designated by the CO.

204.18_nat_03_23_2004

204.15 Acceptance.

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.

556 – Bridge Railing

556.01 Description

Delete the first sentence and replace with the following:

This work consists of reinforcing bridge railing posts such that the bridge railing assembly shall meet Test Level 2 per the AAHSTO 5th Edition design standard.

556.03 General

Prior to fabrication of this item, two sets of shop drawings for bridge rail reinforcement system shall be submitted to the CO for approval.

563 - Painting

563.03 Qualifications

Add the following:

(c) The contractor shall be provided the opportunity to submit alternate documentation equivalent to the “competent person” requirements in section (b) to be evaluated by the CO. Alternate documentation must be submitted at least 14 days before beginning work.

563.07 General

Add the following to subsection (b):

(5) New paint color shall match existing girder paint color. Contractor shall provide color samples to the CO for approval at least 14 days prior to beginning work.

563.08 Structural Iron and Steel

Delete the first sentence of subsection (b) (2) and replace it with the following:

Furnish paint system 6 as shown in Table 563-2.

564 – Bearing Devices

564.02 Material

Delete the first line and replace with the following:

Bearings - Elastomeric bearing pads shall be laminated with steel shims meeting ASTM A36 with a pad Duro 60 Hardness and Grade 3 minimum. Bearing pads shall be designed and stamped by a Colorado Registered Professional Engineer.

564.03 General

Add the following to section (a) Drawings:

Material specifications, certifications, drawings, and engineering calculations supporting the design shall be submitted to the CO no less than 14 days prior to beginning work.

Add the following:

(e) Replacement elastomeric pads shall meet the plan dimensions and thickness of the existing pads.

(f) Submit an engineered jack design with equipment layout, pier modifications/shoring, equipment specifications, jacking sequence, approach fill excavation limits, road closure duration per pier or approach, and safety pre-cautions prepared under the direction of and stamped by a Colorado Registered Professional Engineer at least 14 days prior to beginning work.

624 - Topsoil

624.03 (Preparing Areas)

Shape all slopes and disturbed areas to be covered with topsoil. Disk or scarify slopes 1V:2H or flatter to a depth of 4 inches.

624.04 (Placing Topsoil)

Delete the third sentence.

624.06 (Measurement)

Replace the last two paragraphs with the following:

Measure placing conserved topsoil as the same amount as originally stockpiled according to Section 204.

Scarification shall not be measured separately, but shall be included in the work.

635 - Temporary Traffic Control 635.03_nat_04_05_2004

635.04 General.

Add the following:

Install temporary traffic control signs to temporary posts or approved temporary sign mounts. Signs shall be posted within 3 days after the Notice to Proceed has been issued.

Signs shall be placed on NFSR 96 at the entrance to Eleven Mile Canyon and also immediately prior to the work site. Signs shall have black lettering on a retro-reflective white background and shall meet all MUTCD requirements for temporary traffic control signage as detailed in Chapter 6F (https://mutcd.fhwa.dot.gov/htm/2009/part6/part6f.htm#section6F02).

https://mutcd.fhwa.dot.gov/htm/2009/part6/part6f.htm#section6F02