Specifications.docx

PART 1 – SCHEDULE OF ITEMS

PROPOSED NEW FOREST SERVICE ROAD340.1L

Rio Grande National Forest Divide Ranger District Rio Grande County

SCHEDULE OF ITEMS

SECTION C – PROJECT DESCRIPTION

C- 1 - PROJECT DESCRIPTION AND LOCATION

A) General Description:

This project shall construct a new 2.45-mile-long segment of National Forest System Road on the Divide Ranger District of the Rio Grande National Forest. This road will remain closed during construction.

B) Work included in the bid is as follows:

-Construct a new 14-foot-wide forest service road to be used for future timber sales.

- Construct a new drainage ditch along the new road

- Install corrugated metal pipe (CMP) and apply aggregate surface course for backfill in two stream locations.

- Tree and brush removal for the new road location will be required for the new road as noted in the Description of Work.

- Associated traffic control, if needed, while work is being performed.

C) Site Visit – TBD

D) Time Frame – Summer of 2024

E) Project Location. The beginning of the project is located on the Divide Ranger District of the Rio Grande National Forest. It is approximately 25 miles west and then south of the intersection of Hermosa Road and Highway 160, in proximity to Del Norte Peak. To access the project site from the Rio Grande National Forest Supervisor’s Office, travel north on Hermosa road for .29 miles to highway 160, turn west onto highway 160. Continue straight on highway 160, 14.1 miles to Forest Service road 345 then turn left. Travel 4.49 miles to Forest Service road 340 then turn left. Follow this road for approximately 6.91 miles and the beginning of the new Forest Service road (340.1L), it will be on your right. Lat/Long 37.611044°, -106.502046°.

F) Use of Premise and Camping. Camping may be allowed in close proximity to the project site in an area approved by the CO. Contractor must apply for a permit to camp. All food and refuse shall be handled according to food storage requirements of the “Use and Occupancy Order” to eliminate bear/human contact.

G) Tools and Equipment. All tools and equipment shall be furnished by the Contractor. All equipment shall be cleaned to eliminate transportation/deposition of hazardous weed seed on National Forest lands. All equipment shall be inspected prior to mobilizing onto National Forest lands.

C-2 - GOVERNMENT-FURNISHED MATERIALS. There are no Government Furnished Materials on this project.

C-3 - STANDARD SPECIFICATIONS

The requirements contained in the Standard Specifications for Construction of Roads and Bridges on Federal Highway Projects, FP-14 (U.S. Customary Units), and the Forest Service Supplemental Specifications (FSSS) are hereby made a part of this solicitation and any resultant contract. Special Project Specifications (SPS’s) that amend the FP-14 are contained in this solicitation.

They are referenced herein as a general indication of the requirements governing the work. These specifications can be viewed at no cost on the FHWA website, which also gives ordering information:

https://highways.dot.gov/federal-lands/specs

C-4 - SUPPLEMENTAL SPECIFICATIONS

The following list of Supplement Specifications modify the Standard Specifications, they are included herein.

Table of Contents

Preface Preface_wo_01_29_2024

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 101.01_National_11_9_2016 Add the following paragraph to Subsection 101.01:

101.01 Meaning of Terms.

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

101.03_National_11_9_2016 Add the following to Subsection 101.03:

101.03 Abbreviations.

(a) Acronyms.

AGAR — Agriculture Acquisition Regulations AFPA — American Forest and Paper Association FSAR — Forest Service Acquisition Regulations MSHA — Mine Safety and Health Administration NESC — National Electrical Safety Code WCLIB — West Coast Lumber Inspection Bureau

(f) Miscellaneous unit abbreviations.

101.04_National_1_22_2020 Make the following changes to Subsection 101.04:

101.04 Definitions.

Delete these definitions and replace the following:

Bid Schedule — The Schedule of Items.

Bridge — A structure, including supports, erected over a depression or an obstruction such as water along a road, a trail, or a railway and having a deck for carrying traffic or other loads.

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 — Any structure with a bottom, regardless of fill depth, depth of invert burial, or presence of horizontal driving surface, or any bottomless (natural channel) structure with footings that will not have wheel loads in direct contact with the top of the structure.

Drawings — (Public Works Contracts) Design sheets or fabrication, erection, or construction details submitted to the CO by the Contractor according to FAR Clause 52.236-21 Specifications and Drawings for Construction. Also refers to submissions and submittals.

Notice to Proceed — (Public Works Contracts) Written notice to the Contractor to begin the contract work.

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.

Solicitation—(Public Works Contracts) The complete assembly of documents (whether attached or incorporated by reference) furnished to prospective bidders.

Add the following definitions:

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

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

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

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

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

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

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

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

Shop Drawings — (Timber and Stewardship Contracts) Referred to as “Drawings” in FP-14, include drawings, diagrams, layouts, schematics, descriptive literature, illustrations, lists or tables, performance and test data, and similar materials furnished by Purchaser to explain in detail specific portions of the work required by the contract.

Utilization Standards — The minimum size and percent soundness of trees described in Public Works contract specifications or Timber Sale and IRTC contract provisions to determine merchantable timber.

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

Figure 101-1—Illustration of road structure terms.

102 - Bid¸ Award¸ and Execution of Contract 102.00_National_11_9_2016

Delete Section 102 in its entirety.

Delete Section 102.

103 - Scope of Work 103.00_National_11_9_2016 Delete all of Section 103 except Subsection 103.01 Intent of Contract.

Delete Subsections 103.02, 103.03, 103.04, 103.05.

104 - Control of Work 104.00_National_11_9_2016 Delete Subsections 104.01, 104.02, and 104.04.

Delete Subsections 104.01, 104.02, 104.04.

104.03_National_1_11_2024 Delete Subsection 104.03 and replace with the following:

104.03 Specifications and Drawings.

Refer to B(T) 5.211 in the 2400-6(T)) or the 2400-13(T) contracts for requirements under this subsection.

104.06_National_11_9_2016 Add the following to Subsection 104.06:

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_National_1_11_2024 Add the following to Subsection 105.02 (a):

105.02 (a) Government-provided sources.

Complete any pit or quarry development specified for a designated source, even when material is not obtained from the source.

105.05_National_6_29_2020

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. Place excess material safely at government-approved location, at no additional cost to government.

106 - Acceptance of Work 106.01_National_7_18_2017 Delete Subsection 106.01 and replace with the following:

106.01 Conformity with Contract Requirements.

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, repair, or replace work that does not conform to the contract, or to prevailing industry standards where no specific contract requirements are noted. Removing, repairing, or replacing work; providing temporary traffic control; and any other related work to accomplish conformity will be 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:

Sampling method;

Number of samples;

Sample transport;

Test procedures;

Testing laboratories;

Reporting;

Estimated time and costs; and 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

1. 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.

106.02_National_11_9_2016

Delete Subsection 106.02 and replace with the following:

106.02 Visual Inspection.

Acceptance is based on visual inspection of the work for compliance with the specific contract requirements. Use prevailing industry standards in the absence of specific contract requirements or tolerances.

106.07_National_1_11_2024 Delete Subsection 106.07.

106.07 Partial and Final Acceptance.

107 - Legal Relations and Responsibility to the Public 107.02_National_1_11_2024 Add the following to Subsection 107.02:

107.02 Protection and Restoration of Property and Landscape.

<Include language to clarify or interpret permit or other requirements>.

Examples:

Do not work within the wetted perimeter of streams before July 1 or after September 15.

Do not work within 1000 feet of an occupied dwelling on any legal holiday or between 12 noon Saturday and 6 a.m. the following Monday.

Do not work (except hauling material) within 1500 feet of osprey nests between March 1 and May 31. No known active nests were located within the 1500 feet limit as of June 15, 1991. If a new nest is found, suspend work (except hauling material) within 1500 feet of the nest location. See Subsection 108.06.

Delete this example text highlighted in yellow before including in final documents

107.05_National_7_18_2017 Delete Subsection 107.05.

Delete Subsection 107.05.

107.08_National_1_11_2024 Delete Subsection 107.08 and replace with the following:

107.08 Sanitation, Health, and Safety.

Refer to specific provisions under B(T) 6.0 in the 2400-6(T) or the 2400-13(T) contracts for requirements under this subsection.

108 - Prosecution and Progress 108.00_National_11_9_2016 Delete Section 108 in its entirety.

Delete Section 108.

109 - Measurement and Payment 109.00_National_11_9_2016 Delete Subsections 109.06, 109.07, 109.08, and 109.09:

Delete Subsections 109.06, 109.07, 109.08, 109.09.

109.01_National_2_22_2019 Delete the third paragraph and Table 109-1 of Subsection 109.01 and replace with the following:

109.01 Measurement of Work.

Take measurements as described in Subsection 109.02 unless otherwise modified by the Measurement Subsection of the section controlling the work being performed. Table 109-1 indicates the accuracy required for quantities of the various pay units used in the Schedule of Items. Use this guide to determine the decimal placement in the final payment.

Table 109-1 Decimal Accuracy of Quantities for Final Payment

Exception--Structure Excavation; Sheathing Materials; Bedding, Bed Course, and Backfill Materials; Gabions;

0.1

Exception--Calcium Chloride;

Sodium Chloride; Hydrated Lime;

Bituminous Materials; Pavements;

Bed Course Materials 0.01

109.02_National_11_9_2016 Add the following sentence to Subsection 109.02(b):

109.02 Measurement Terms and Definitions.

(b) Contract quantity.

Contract quantities will be adjusted only when there are errors in the original design of 15% or more.

109.03_National_1_11_2024 Add the following to Subsection 109.03(c):

109.03 Weighing Procedures and Devices.

(c) Project weighing system.

For aggregates weighed for payment, adjust scale weights of material to deduct the daily average moisture content in excess of 2 percentage points over optimum moisture as determined by AASHTO T 99 or the designated compaction method. If moisture determination is necessary, determine the daily average moisture content in accordance with AASHTO T 255, from not less than three representative samples of aggregate taken at random intervals each day that aggregate is being weighed.

Manual scales may be used if approved in writing by the CO and if the method of weighing meets all other contract requirements.

151 - Mobilization 151.01_Forest_1_11_2024 No Attachment 151.03_Forest_1_11_2024 Delete Subsections 151.03(b), 151.03(c), and 151.03(d).

Delete Subsections 151.03(b), 151.03(c), 151.03(d). Replace 151.03(b) with the following:

151.03 (b) Up to 25 percent of the original contract amount may be paid upon mobilization to the jobsite prior to any other work being completed. Any portion of the mobilization pay item in excess of 25 percent of the original contract amount will be paid after final acceptance.

152 - Construction Survey and Staking 152.00_National_1_11_2024 Add the following to Subsection 152.04(c):

152.04 General.

(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.

Make the following changes to Subsection 152.05:

152.05 Survey and Staking Requirements.

Delete Subsection 152.05(d)(2) and replace with the following:

(d) Slope and reference stakes.

(2) Conventional survey methods. 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.

Add the following to Subsection 152.05(e):

(e) Clearing and grubbing limits.

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.

Replace Table 152-1 with the following:

Table 152-1 Construction Survey and Staking Tolerances Table 152-1 Construction Survey and Staking Tolerances (1)

Control points set from existing Government control points- Tolerance Class A ±0.03 feet (±10 millimeters)

±0.01 feet ×

(±3 millimeters ×)(2)

Mapping, topography, and cross-section Points- Tolerance Class A ±0.16 feet (±50 millimeters) ±0.16 feet (±50 millimeters)

Centerline points (3) including (PC), (PT), (POT),(POC), and references- Tolerance Class A ±0.06 feet (±20 millimeters) ±0.06 feet (±20 millimeters)

(±50 millimeters) ±0.16 feet ±50 millimeters)

Culverts, ditches, and minor drainage structures stakes- Tolerance Class A ±0.16 feet (±50 millimeters) ±0.06 feet (±20 millimeters)

(±20 millimeters) ±0.03 feet (±10 millimeters)

(±20 millimeters) ±0.03 feet (±10 millimeters)

(±10 millimeters)(5) ±0.03 feet (±10 millimeters)

(±10 millimeters)(5) ±0.03 feet (±10 millimeters)

(±300 millimeters)

(±50 millimeters) ±0.03 feet (±10 millimeters)

(±50 millimeters) ±0.03 feet (±10 millimeters)

Table 152-1 Construction Survey and Staking Tolerances (continued) (1)

(±20 millimeters) ±0.16 feet × (±20 millimeters × )(2)

(±300 millimeters) ±0.50 feet (±150 millimeters)

(±20 millimeters) ±0.16 feet (±20 millimeters)

(±50 millimeters) ±0.16 feet ±50 millimeters)

(±150 millimeters) ±0.16 feet (±20 millimeters)

(±600 millimeters)

(±50 millimeters) ±0.16 feet (±10 millimeters)

(±50 millimeters) ±0.16 feet (±10 millimeters)

(1) At statistical 95 percent confidence level. Tolerances are relative to existing Government control points.

(2) N is the number of instrument setups.

(3) Centerline points: PC - point of curve, PT - point of tangent, POT - point on tangent, POC - point on curve.

(4) Take the cross-sections normal to the centerline ±1 degree.

(5) Bridge control is established as a local network and the tolerances are relative to that network.

(6) Includes paved ditches.

(7) Tolerance Class B for Very Low Volume Roads with an aggregate or native finished surface.

152.02_Forest_1_11_2024 Add the following to Subsection 152.04:

152.04 General.

For projects surveyed and staked using preliminary survey line (P-line) method, the government shall provide P-line traverse data and construction staking data showing the projected location of catch points.

Add the following to Subsection 152.05:

152.05 Survey and Staking Requirements.

(b) Centerline establishment. For P-line survey and staking method, establish the centerline (L-line) by measuring right or left from the preliminary survey line (P-line) on a bisector bearing the distance shown in the Government-provided staking notes. Ensure that the station of the centerline point is that listed in the Government-provided staking notes.

(1) P-line establishment. A preliminary survey line has been established on the ground for this project, with initial and succeeding survey points referenced. Reestablish missing P-line points as necessary to control subsequent construction staking operations to the precision designated in table 152-1.

Set additional intermediate P-line stakes at locations shown on the plans and listed in the construction staking notes, as needed to establish control for additional design features. Examples include but are not limited to: beginning and ending of extra widening and turnout tapers; horizontal curves; and turnarounds.

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, mark with the offset distance to the slope stake, and duplicate the information on the slope stake.

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 152-1.

Method II – Projected Catchpoint L-line reference. Stake information such as amount of cut or fill shall be provided in the government-provided staking notes. Slope stake catchpoints shall be located by measuring distances from the established centerline (L-line) location. Measurements and stake locations shall be along the cross section line perpendicular to the centerline (L-line) alignment. If field conditions do not match staking data stake according to method I.

Method III— Projected Catchpoint P-line reference. Stake information such as amount of cut or fill shall be provided in the government-provided staking notes. Slope stake catchpoints shall be located by measuring slope distances from the P-line as shown in the Government provided data. Measurements and stake locations shall be along the cross section line bisecting the preliminary survey line (P-line).

For stations within horizontal curves having a deflection angle greater than 20 degrees stake according to method II.

If field conditions do not match staking data stake according to method I.

Table 152-1 Construction Survey and Staking Tolerances (1)

For P-line Survey and Staking method

foresight and backsight rejection limit of 30 minutes 1:400 closure with a max foresight and backsight rejection limit of 0.50%.

±0.2 feet if staking with method I

NA

153 - Contractor Quality Control 153.02_National_1_11_2024 Delete Subsection 153.02 and replace with the following:

153.02 Qualifications.

Submit the following for approval with the quality control plan:

(a) Quality control manager (QCM). Furnish a QCM who has at least 2 years’ experience in construction, inspector, quality control and material testing on construction projects of similar type and scope.

(b) Testers. Provide testers with at least one year experience in the type of sampling and testing required, and with one of the following for the type of sampling and testing performed:

(1) NICET Level II certification in highway material or equivalent state or industry certification;

(2) Certification by a regional certification program (such as Western Alliance for Quality Transportation Construction (WAQTC), Northeast Transportation Technician Certification Program (NETTCP), Southeast Task Force for Technician Training and Qualification (STFTTQ), or Multi Regional Training and Certification (M-TRAC)); or

(3) At least one year employment by an AASHTO accredited laboratory performing equivalent sampling and testing.

153.03_National_1_11_2024 Add the following paragraph to the end of Subsection 153.03(b):

153.03 Quality Control Plan.

(b) Quality Control Procedures.

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

153.07_National_1_11_2024 Delete Subsection 153.07 and replace with the following:

153.07 Records and control charts.

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

153.10_Regional_1_11_2024 Add the following Subsection:

153.04 (2) (a) Submittal Log At a minimum the contractor shall provide project submittals as shown on the Submittal Log below. Submittal requirements are listed in the Standard Specifications, Supplemental Specifications, and Plans.

Submittal Log

Pay Item(s)

/Drawings Additional Specification References

155 - Schedules for Construction Contracts 155.00_National_11_9_2016 Delete Section 155 in its entirety.

Delete Section 155.

157 - Soil Erosion and Sediment Control 157.04_National_1_11_2024 Delete Subsection 157.04 and replace with the following:

157.04 General.

Thirty (30) days prior to the start of construction, submit a written plan according to subsection 104.03 with all necessary permits 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 without approval.

When erosion control measures are not functioning as intended, take corrective action to eliminate or minimize pollutants in storm water discharges from the project.

202 - Additional Clearing and Grubbing 202.00_Forest_1_11_2024 Delete Section 202 in its entirety and replace with the following.

Section 202. — ADDITIONAL CLEARING AND GRUBBING Description

202.01 This work consists of clearing and grubbing outside the clearing limits specified in Section 201. This work also includes clearing vistas, thinning vegetation, special clearing and grubbing, and the removal of individual trees and stumps.

202.02 Definitions.

Construction Requirements

202.03 General. Clear and grub according to Section 201, except as modified herein. Do not push, pull, or fall trees into areas designated to remain. Remove designated debris by methods that prevent damage to vegetation not designated to be removed. Dispose of clearing and grubbing debris according to Subsection 203.05.

202.04 Selective Clearing. Clear and dispose of trees, snags, brush, downed timber, and other vegetation designated to be removed.

Dead trees over 6 inches in diameter measured at 12 inches above ground that lean toward the road, and are tall enough to reach the roadbed are designated for cutting.

When marked in advance, remove hazard trees or unstable live trees over 6 inches in diameter measured at 12 inches above ground that lean toward the road and are tall enough to reach the roadbed.

202.05 Selective Clearing and Grubbing. Clear, grub, and dispose of trees, snags, brush, downed timber, stumps, roots, buried logs, moss, turf, grass, and other vegetation designated to be removed.

202.06 Special Clearing and Grubbing. Clear, grub, and dispose of trees, snags, brush, downed timber, stumps, roots, buried logs, moss, turf, grass, and other vegetation.

202.07 Removal of Individual Trees or Stumps. Remove and dispose of designated trees or stumps. Cut trees to within 6 inches of the ground.

202.08 Acceptance. Additional clearing and grubbing work will be evaluated under Subsection 106.02.

Measurement

202.09 Measure the Section 202 pay items listed in the bid schedule according to Subsection 109.02 and the following as applicable:

Do not measure trees less than 6 inches in diameter at the cutoff.

Payment

202.10 The accepted quantities will be paid at the contract price per unit of measurement for the Section 202 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05.

202.04_Regional_1_11_2024 Delete the Subsection 202.01 and replace the following:

202.01 This work consists of clearing and grubbing within clearing limits as designated in the plans. This work also includes scalloping clearing lines, clearing vistas, thinning vegetation, special clearing and grubbing and the removal of individual trees and stumps designated in the plans that may be outside the clearing limits.

Add the following to Subsection 202.04:

202.04 Selective Clearing.

(a) Roadside Clearing. Cut all brush and small trees, <FILL IN > inches in diameter or less at the point of cut, inside the roadside clearing limits and outside the roadway no higher than <FILL IN > inches above ground level. If rocks or other obstructions are encountered, cut no higher than 6 inches above the obstruction. Limb live trees with a diameter larger than <FILL IN should match the first fill in > inches to a height of <FILL IN > feet above the road surface.

Add the following to Subsection 202.06:

202.06 Special Clearing and Grubbing.

(a) Roadway and Roadside Clearing and Grubbing. Clear Within the roadside clearing limits. Grub the roadway and horizontally < FILL IN > feet beyond each shoulder. Dispose of merchantable timber according to Subsection 201.06

204 - Excavation and Embankment 204.00_National_1_11_2024 Delete Section 204 in its entirety and replace with the following.

Section 204. — EXCAVATION AND EMBANKMENT Description

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

204.02 Definitions.

(a) Excavation. Excavation consists of the following:

(1) Roadway excavation. Material excavated from within the right-of-way or easement areas, except subexcavation covered in Subsection 204.02(a)(2) and structure excavation covered in Sections 208 and 209. Roadway excavation includes all material encountered regardless of its nature or characteristics.

(2) Subexcavation. Material excavated from below subgrade elevation in cut sections or from below the original ground-line in embankment sections. Subexcavation excludes the work required by Subsection 204.05 or 204.06.

(3) Borrow excavation. Material used for embankment construction that is obtained from outside the roadway prism. Borrow excavation includes unclassified borrow, and topping.

(b) Embankment construction. Embankment construction consists of placing and compacting roadway or borrow excavation. This work includes:

(1) Preparing foundation for embankment;

(2) Constructing roadway embankments;

(3) Benching for side-hill embankments;

(4) Constructing dikes, ramps, mounds, and berms; and

(5) Backfilling subexcavated areas, holes, pits, and other depressions.

(c) Conserved topsoil. Excavated material conserved from the roadway excavation and embankment foundation areas that is suitable for growth of grass, cover crops, or native vegetation.

(d) Waste. Excess and unsuitable roadway excavation and subexcavation that cannot be used.

Material

204.03 Conform to the following Subsections:

Construction Requirements

204.04 Preparation for Roadway Excavation and Embankment Construction. Clear the area of vegetation and obstructions according to Sections 201 and 203.

Road pioneering, slash disposal, and grubbing of stumps may proceed concurrently with excavation and embankment. Maintain drainage during pioneering operations.

204.05 Conserved Topsoil. When designated, conserve topsoil from roadway excavation and embankment foundation areas. Stockpile conserved topsoil in low windrows immediately beyond the rounding limits of cut and embankment slopes or in other approved locations. Separate conserved topsoil from other excavated material. When designated, place conserved topsoil on completed slopes according to Section 624.

204.06 Roadway Excavation. Excavate as follows:

(a) Rock cuts. Blast rock according to Section 205. Excavate rock cuts to 6 inches (150 millimeters) below subgrade within the roadbed limits. Backfill to subgrade with topping or other suitable material. Compact the material according to Subsection 204.11.

(b) Earth cuts. Scarify earth cuts to 6 inches (150 millimeters) below subgrade within the roadbed limits. Compact the scarified material according to Subsection 204.11.

(c) Pioneer Roads. Conduct excavation and placement operations so material to be treated under Section 201 will not be incorporated into the roadway unless specified in the slash treatment method. Maintain drainage during pioneering operations.

Remove snow and ice in advance of the work and deposit beyond the roadway limits in a manner that will not waste material or generate sediment. Do not incorporate snow and ice into embankments. Place snow or ice in a manner to prevent resource damage.

(d) Drainage Feature. Drainage feature includes construction of all ditches, minor channel changes, drainage dips, catch basins, surface water deflectors, and other minor drainage structures. Compact the material according to Subsection 204.11. Excavate on a uniform grade between control points.

Do not disturb material and vegetation outside the construction limits. Retrieve material deposited outside the construction limits. Dispose of unsuitable or excess excavation material according to Subsection 204.14. Replace shortage of suitable material caused by premature disposal of roadway excavation.

Shape to drain and compact the work area to a uniform cross-section at the end of each day's operations.

204.07 Subexcavation. Excavate material to the required limits. Dispose of unsuitable material according to Subsection 204.14. Take cross-sections according to Section 152. Backfill subexcavated area with suitable material in horizontal layers not exceeding 12 inches (300 millimeters) in compacted thickness and compact according to Subsection 204.11. Prevent unsuitable material from mixing with suitable backfill material.

204.08 Borrow Excavation. Use suitable roadway excavation in embankment construction. Do not use borrow excavation when it results in excess roadway excavation. Deduct excess borrow excavation from the total borrow excavation quantity.

Obtain borrow source approval according to Subsection 105.02. Develop and restore borrow sources according to Subsections 105.03 and 105.06. Do not excavate beyond the established limits. When applicable, shape the borrow source to permit accurate measurements when excavation is complete.

204.09 Preparing Foundation for Embankment Construction. Prepare foundation for embankment construction as follows:

(a) Embankment over natural ground. Remove topsoil and break up the ground surface to a minimum depth of 6 inches (150 millimeters) by plowing or scarifying. Compact the ground surface according to Subsection 204.11.

(b) Embankments over an existing asphalt, concrete, or gravel road surface. Scarify gravel roads to a minimum depth of 6 inches (150 millimeters). Scarify or pulverize asphalt and concrete roads to 6 inches (150 millimeters) below the pavement. Reduce particles to a maximum size of 6 inches (150 millimeters) and produce a uniform material. Compact the surface according to Subsection 204.11.

(c) Embankment across ground not capable of supporting equipment. Dump successive loads of embankment material in a uniformly distributed layer to construct the lower portion of the embankment. Limit the layer thickness to the minimum depth necessary to support the equipment.

(d) Embankment on an existing slope steeper than 1V:3H. Cut horizontal steps in the existing slope to a sufficient width to accommodate placement and compaction operations and equipment. Step the slope as the embankment is placed and compacted in layers. Begin each step at the intersection of the original ground and the vertical cut of the previous step.

204.10 Embankment Construction. Incorporate only suitable roadway excavation material into the embankment. When the supply of suitable roadway excavation is exhausted, furnish unclassified borrow to complete the embankment. Obtain written approval before beginning construction of embankments over 6 feet (2 meters) high at subgrade centerline. Construct embankments as follows:

(a) General. At the end of each day's operations, shape to drain and compact the embankment surface to a uniform cross-section. Eliminate ruts and low spots that could hold water.

During all stages of construction, route and distribute hauling and leveling equipment over the width and length of each layer of material.

Compact embankment side slopes with a tamping foot roller, by walking with a dozer, or by overbuilding the fill and then removing excess material to the final slope line. For slopes 1V:1¾H or steeper, compact the slopes as embankment construction progresses.

(b) Embankment within the roadway prism. Place embankment material in horizontal layers not exceeding 12 inches (300 millimeters) in compacted thickness. Incorporate oversize boulders or rock fragments into the 12-inch (300-millimeter) layers by reducing them in size or placing them individually as required below. Compact each layer according to Subsection 204.11 before placing the next layer.

Material composed predominately of boulders or rock fragments too large for 12-inch (300millimeter) layers may be placed in layers up to 24 inches (600 millimeters) thick. Incorporate oversize boulders or rock fragments into the 24-inch (600-millimeter) layer by reducing them in size or placing individual rock fragments and boulders greater than 24 inches (600 millimeters) in diameter as follows:

(1) Reduce rock to less than 48 inches (1200 millimeters) in the largest dimension;

(2) Distribute rock within the embankment to prevent nesting;

(3) Place layers of embankment material around each rock to a depth not greater than that permitted above. Fill voids between rocks; and

(4) Compact each layer according to Subsection 204.11(a) before placing the next layer.

(c) Embankment outside of roadway prism. When placing embankment outside the staked roadway prism, place material in horizontal layers not exceeding 24 inches (600 millimeters) in compacted thickness. Compact each layer according to Subsection 204.11.

204.11 Compaction. Compact the embankment using one of the following methods as specified.

(a) Placement Method 1. Use AASHTO T 27 to determine the quantity of material retained on a No. 4 (4.75-millimeter) sieve. Compact as follows:

(1) More than 80 percent retained on a No. 4 (4.75-millimeter) sieve. Adjust the moisture content to a level suitable for compaction. Fill the interstices around rock with earth or other fine material as practical. Use compression-type rollers at speeds less than 6 feet (1.8 meters) per second and vibratory rollers at speeds less than 3 feet (1 meter) per second. Compact each layer of material full width with one of the following and until there is no visible evidence of further consolidation:

(a) Four roller passes of a vibratory roller having a minimum dynamic force of 40,000 pounds (180 kilonewtons) impact per vibration and a minimum frequency of 1000 vibrations per minute;

(b) Eight roller passes of a 20-ton (20-metric ton) compression-type roller; or

(c) Eight roller passes of a vibratory roller having a minimum dynamic force of 30,000 pounds (130 kilonewtons) impact per vibration and a minimum frequency of 1000 vibrations per minute.

Increase the compactive effort for layers deeper than 12 inches (300 millimeters) as follows:

For each additional 6 inches (150 millimeters) or fraction thereof, increase the number of roller passes in…