Attachment 2 - Specifications.docx

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Midgley Bridge Observation Site Parking Lot
Solicitation number
127EAX26Q0068
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About this file

This is a Specifications document for a parking lot improvement project at the Midgley Bridge Observation Site. The work encompasses complete pavement removal and replacement, installation of drainage infrastructure including concrete curb and gutter systems, drainage inlets, and corrugated steel pipes to manage stormwater. The site will be restriped with new parking markings, new directional and informational signs with posts installed, traffic delineators added, and concrete wheel stops positioned throughout the lot.

The solicitation is issued by the Department of Agriculture Forest Service under Solicitation Number 127EAX26Q0068 and is structured as a Request for Quote (RFQ). An organized site visit is scheduled for August 18th, 2026 at 10:00 am Local Time to allow contractors to assess site conditions. Requests for Information (RFIs) must be submitted by August 24th, 2026 at 1:00 pm Central Daylight Time, with quotes due by September 1st, 2026 at 1:00 pm Central Daylight Time. No specific pricing terms, award dates, or contract vehicle types are detailed in the opportunity description provided.

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SOUTHWEST REGION 03

COCONINO NATIONAL FOREST

Midgley Bridge Observation Site Parking Lot

PROJECT SPECIFICATIONS

U.S. FOREST SERVICE

May 2026

TABLE OF CONTENTS

1.0 PREFACE4
1.1 FP-24 U.S. CUSTOMARY UNITS, 20244
1.2 FOREST SERVICE SUPPLEMENTAL SPECIFICATIONS4
1.3 NON-STANDARD SPECIFICATIONS4
2.0 SUBMITTAL PROCEDURES AND REQUIREMENTS5
2.1 SUBMITTAL DESCRIPTIONS5
2.2 VARIATIONS6
2.3 SUBMITTAL TYPES7
2.4 SUBMITTAL EXECUTION7
3.0 SUBMITTAL LIST8
4.0 FP-24 FSSS SPECIFICATIONS INCLUDED IN CONTRACT10
PREFACE12
Section 101. – TERMS, FORMAT, AND DEFINITIONS12
Section 101. – TERMS, FORMAT, AND DEFINITIONS12
Section 101. – TERMS, FORMAT, AND DEFINITIONS13
Section 102. - BID, AWARD, AND EXECUTION OF CONTRACT16
Section 103. – SCOPE OF WORK16
Section 104. – CONTROL OF WORK16
Section 104. – CONTROL OF WORK16
Section 105. – CONTROL OF MATERIAL16
Section 105. – CONTROL OF MATERIAL17
Section 105. – CONTROL OF MATERIAL17
Section 105. – CONTROL OF MATERIAL18
Section 105. – CONTROL OF MATERIAL18
Section 106. – ACCEPTANCE OF WORK18
Section 107. - LEGAL RELATIONS AND RESPONSIBILITY TO THE PUBLIC18
Section 108. - PROSECUTION AND PROGRESS20
Section 109. - MEASUREMENT AND PAYMENT20
Section 109. - MEASUREMENT AND PAYMENT20
Section 109. - MEASUREMENT AND PAYMENT21
Section 109. - MEASUREMENT AND PAYMENT22
Section 152. – CONSTRUCTION SURVEY AND STAKING22
Section 153. – CONTRACTOR QUALITY CONTROL24
Section 153. – CONTRACTOR QUALITY CONTROL25
Section 153. – CONTRACTOR QUALITY CONTROL25
Section 155. – SCHEDULES FOR CONSTRUCTION CONTRACTS25
Section 155. – SCHEDULES FOR CONSTRUCTION CONTRACTS31
Section 201. - CLEARING AND GRUBBING31
Section 201. - CLEARING AND GRUBBING32
Section 203. - REMOVAL OF STRUCTURES AND OBSTRUCTIONS32
Section 203. - REMOVAL OF STRUCTURES AND OBSTRUCTIONS33
Section 204. – EXCAVATION AND EMBANKMENT34
Section 204. – EXCAVATION AND EMBANKMENT35
Section 209. - STRUCTURE EXCAVATION AND BACKFILL35
Section 251. – RIPRAP36
Section 301. - UNTREATED AGGREGATE COURSES36
Section 301. - UNTREATED AGGREGATE COURSES36
Section 302. - CRUSHED AGGREGATE37
Section 302. - CRUSHED AGGREGATE37
Section 703. - AGGREGATE37
Section 703. - AGGREGATE38
Section 703. - AGGREGATE40
Section 704. - SOIL40
Section 705. - ROCK40

6.0 NON-FP24 SPECIFICATIONS

1.0 PREFACE

1.1 FP-24 U.S. CUSTOMARY UNITS, 2024

The Standard Specifications for Construction of Roads and Bridges on Federal Highway Projects (FP-24 U.S. Customary Units), 2024 are included by reference. The requirements contained in these specifications are hereby made a part of this solicitation and any resultant contract. References made to other sections within those listed are applicable by reference.

The 700-page book entitled “Standard Specifications for Construction of Roads and Bridges on Federal Highway Projects (FP-24 U.S. Customary Units), is available from:

Headquarters Washington DC David K. Green Construction Standards Engineer Internet: David.Green@fhwa.dot.gov Mail: Federal Highway Administration

HFPD-3

400 Seventh Street, SW Washington D.C. 20590 https://highways.dot.gov/federal-lands/specs

Items listed for payment are in the schedule of items. All other items, regardless of payment procedures listed in FP-24, are considered incidental to the work and shall be included in the schedule of items, as necessary.

1.2 FOREST SERVICE SUPPLEMENTAL SPECIFICATIONS

Forest Service Supplemental Specifications (FSSS) may add to, delete from, or modify the Forest Service Standard Specifications (FP-24). FSSS are applicable to this project and are included in their entirety.

1.3 NON-STANDARD SPECIFICATIONS

Specifications not listed in the above referenced sections are provided here and made a part of the solicitation and any resultant contract.

2.0 SUBMITTAL PROCEDURES AND REQUIREMENTS

2.1 SUBMITTAL DESCRIPTIONS

When a product, model number, part number, etc. is specified herein, it is implied a substitute product with the same performance specifications may be submitted as an Approved Equal, subject to final approval by the Contracting Officer.

Submittal Descriptions (SD): Submittals requirements are specified in the technical sections. Submittals are identified by Submittal Description (SD) numbers and titles as follows:

SD-01 Preconstruction Submittals:

Submittals which are required prior to start of construction work, issuance of contract notice to proceed, or commencing work at the site. This includes, but not limited to: a. List of proposed Subcontractors (SF Form 1413)

b. Construction progress schedule

c. Health and safety plan

d. Work plan

e. Quality Control (QC) plan

f. Bonding

g. SWPPP

SD-02 Shop Drawings:

Drawings, diagrams, and schedules specifically prepared to illustrate some portion of the work. Diagrams and instructions from a manufacturer or fabricator for use in producing the product and as aids to the Contractor for integrating the product or system into the project. Drawings prepared by or for the Contractor to show how multiple systems and interdisciplinary work will be coordinated.

SD-03 Product Data:

Catalog cuts, illustrations, schedules, diagrams, performance charts, instructions and brochures illustrating size, physical appearance, and other characteristics of materials, systems or equipment for some portion of the work.

SD-04 Samples:

Fabricated or un-fabricated physical examples of materials, equipment or workmanship that illustrate functional and aesthetic characteristics of a material or product and establish standards by which the work can be judged. Color samples from the manufacturer’s standard line (or custom color samples if specified) to be used in selecting or approving colors for the project.

SD-05 Design Data:

Design calculations, mix designs, analyses or other data pertaining to a part of the work.

Design submittals, design substantiation submittals and extensions of design submittals.

Design calculations, mix designs, analyses or other data pertaining to a part of the work.

SD-06 Test Reports:

· Reports signed by authorized official of testing laboratory that a material, product, or system identical to the material, product, or system to be provided has been tested in accord with specified requirements.

· Reports of tests required to be performed by the Contractor on an actual portion of the work prepared for the project before shipment to job site.

· Report which includes finding of a test made at the job site or on a sample taken from the job site, on portion of work during or after installation.

SD-07 Certificates:

Statements printed on the manufacturer’s letterhead and signed by responsible officials of manufacture of product, system, or material attesting that the product, system, or material meets specification requirements. Must be dated after award of the project contract and clearly name the project.

SD-08 Manufacturer’s Instructions:

Preprinted material describing installation of a product, system, or material, including special notices and MSDS concerning impedances, hazards, and safety precautions.

SD-09 Manufacturer’s Fields Reports:

· Documentation of the testing and verification actions taken by manufacturer’s representative at the job site, in the vicinity of the job site, or on a sample taken from the job site, on a portion of the work, during or after installation, to confirm compliance with manufacturer’s standards or instructions.

· Documentation must be signed by an authorized official of a testing agency laboratory or agency and state the test results; and indicate whether the material, product, or system has passed or failed the test.

SD-10 Operation and Maintenance Data:

Data that is furnished by the manufacturer, or the system provider, to the product, system, or equipment operating and maintenance personnel, including manufacturer’s help and product line necessary to maintain the product, system, or equipment.

SD-11 Closeout Submittals:

· Documentation to record compliance with technical or administrative requirements or to establish an administrative mechanism.

· Special requirements necessary to properly close out a construction contract, such record drawings and as-built drawings.

2.2 VARIATIONS

Variations from contract requirements require Governmental approval pursuant to contract clause FAR 52-236-21 and will be considered where advantageous to the Government. Highlight, encircle, or otherwise identify deviations from the contract documents on submittals.

2.3 SUBMITTAL TYPES

· Government Approval (GA) Submittals

· Written and graphic information that requires Contracting Officer’s responsible action.

· For Information Only (FIO) Submittals

2.4 SUBMITTAL EXECUTION

· Review each submittal and check for compliance with the contract documents. Note corrections and field dimensions.

· The Contracting Officer review will be completed and returned within 14 calendar days after date of submissions.

· If a submittal is marked as “Disapproved” or “Does not comply”, resubmit with appropriate corrections. No work shall proceed for this item until resubmittal is approved.

· Contracting Officer will not review submittals that do not bear the Contractor’s signature and will return them without actions.

· Use the attached cover form CM-16.

1 | P a g e

3.0 SUBMITTAL LIST

Comment by Tina M Williams: This is for Mt. Elden Trailhead. Update to current project name. Comment by Brown, Kristina - FS, AZ: I can not edit this. Once the design is final we need a new one.

4.0 FP-24 FSSS SPECIFICATIONS INCLUDED IN CONTRACT

SECTION NUMBER
TITLE
Division 100
GENERAL REQUIREMENTS
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
Division 150
PROJECT REQUIREMENTS
152
Construction Survey and Staking
153
Contractor Quality Control
155
Schedules for Construction Contracts
Division 200
EARTHWORK
201
Clearing and Grubbing
203
Removal of Structures and Obstructions
204
Excavation and Embankment
209
Structure Excavation and Backfill
Division 250
SLOPE REINFORCEMENT AND RETAINING WALLS
251
Riprap
Division 300
AGGREGATE AND BASE COURSES
301
Untreated Aggregate Course
302
Minor Crushed Aggregate
Division 700
MATERIAL
703
Aggregate
704
Soil
705
Rock

PREFACE

Delete all but the first paragraph and add the following:

The Forest Service, US Department of Agriculture has adopted FP-24 for construction of National Forest System Roads. The Forest Service Supplemental Specifications (FSSS) shall be incorporated in the FP-24. The applicable specifications for the project will be the FP-24 as modified by the FSSS.

Section 101. – TERMS, FORMAT, AND DEFINITIONS Add the following paragraph to Subsection 101.01 Meaning of Terms:

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

Section 101. – TERMS, FORMAT, AND DEFINITIONS Add the following to Subsection 101.03 Abbreviations:

(a) Acronyms.

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

(d) Miscellaneous unit abbreviations.

MP - milepostlocation
ppm - parts per millionvolume
STA – stationlocation
MFBM - thousand feet board measurevolume

Section 101. – TERMS, FORMAT, AND DEFINITIONS Make the following changes to Subsection 101.04 Definitions:

Delete these definitions and replace with 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 —Design sheets or fabrication, erection, or construction details submitted to the CO by the Contractor.

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

Notice to Proceed — (Public Works Contracts) Written notice to the Contractor to begin the contract work. (Timber Contracts) does not apply, replace NTP with Contract Award.

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 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.

Forest Service Supplemental Specifications – The Forest Service uses supplemental specifications to modify the FP-24 to meet the agency needs and intents. FSSS revise the FP-24 by adding, deleting, replacing, revising, replacing part of entire sections or subsections or adding new sections to the FP..

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.

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

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

Figure 101-1—Illustration of road structure terms

Section 102. - BID, AWARD, AND EXECUTION OF CONTRACT Delete Section 102 Bid, Award, and Execution of Contract in its entirety.

Section 103. – SCOPE OF WORK Delete all of Section 103 Scope of Work except Subsection 103.01 Intent of Contract.

Section 104. – CONTROL OF WORK Delete Subsection 104.07 Coordination of Contract Documents.

Section 104. – CONTROL OF WORK Add the following Subsection 104.12 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.

Section 105. – CONTROL OF MATERIAL Add the following to Subsection 105.02(a) Material Sources, Government-furnished sources:

Government-provided sources for this project are identified as follows:

(1) Government-furnished mandatory sources.

Pay Item
Description
Material source number or name
N/A
N/A
N/A

(2) Government-furnished optional sources for this project are identified as follows:

Pay Item
Description
Material source number or name
N/A
N/A
N/A

The following restrictions apply: N/A

Section 105. – CONTROL OF MATERIAL Add the following to Subsection 105.02(c) Material Sources, Contractor-located sources:

All material (e.g., soil, gravel, sand, borrow, aggregate, etc.) transported onto National Forest System land or incorporated into the work shall 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 means and methods to establish weed-free status must be appropriate for the weeds of concern in the local area.

Section 105. – CONTROL OF MATERIAL Add the following to Subsection 105.02(c) Material Sources, Contractor-located sources:

All material (e.g., soil, gravel, sand, borrow, aggregate, etc.) transported onto National Forest System land or incorporated into the work shall 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 means and methods to establish weed-free status must be appropriate for the weeds of concern in the local area.

Section 105. – CONTROL OF MATERIAL Add the following to Subsection 105.02(c) Material Sources, Contractor-located sources:

All material (e.g., soil, gravel, sand, borrow, aggregate, etc.) transported onto National Forest System land or incorporated into the work shall 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 means and methods to establish weed-free status must be appropriate for the weeds of concern in the local area. The following applies to this contract:

A Forest Service weed specialist will inspect proposed sources to determine weed-free status. Provide the Contracting Officer written notification of proposed material sources 14 days prior to use. Written approval of the specific source will be provided to the contractor by the CO. If weed species are present in the proposed source, appropriate mitigation measures may allow conditional use of the source as required by the Contracting Officer.

Section 105. – CONTROL OF MATERIAL Delete second paragraph and subparagraphs (a) and (b) in Subsection 105.05 Use of Material Found in the Work and replace it with the following:

The right to use and process material found in the work excludes the use and processing of material for nongovernment contract work, except for the disposal of waste material. 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 at government-approved agreed to location(s), at no additional cost to government.

Section 106. – ACCEPTANCE OF WORK Delete the 3rd and 4th paragraphs in Subsection 106.01 Conformity with Contract Requirements.

Section 107. - LEGAL RELATIONS AND RESPONSIBILITY TO THE PUBLIC Add the following to Subsection 107.02 Protection and Restoration of Property and Landscape:

1. DESCRIPTION

A. This work shall consist of coordination with government, state agencies and the general public.

B. Contractor will obtain all Right-of-Way Encroachment permits for the work. The following is a breakdown of jurisdictions. Confirm with each jurisdictional authority that sign replacements require permits. If so, obtain permits at no additional cost to the Government.

C. Contractor will be responsible for hiring biological monitors, these monitors will be responsible for monitoring narrow headed garter snakes (“target species”) within the project area. These monitors shall be present during heavy construction operations including demolition, excavation and placement of pavement materials.

2. EXECUTION

A. Biological Monitors

1. Biological monitors shall be contracted and paid by Contractor. Bio monitors must be present during all heavy construction activities: including asphalt removal and demolition, excavation, rock removal, and pavement material placement.

2. All personnel involved in construction activity must receive training on how to identify the target species and the required protocol when the species is identified on-site (personnel shall immediately stop work and notify the bio monitor).

3. Biological monitors are responsible for spotting target species in areas of Contractors operations. During heavy construction activities, bio monitors shall be positioned to identify immediate hazards to the target species and shall have authority to halt operations when immediate hazards to the target species are identified, the bio monitor shall remove the identified speciemens for relocation.

4. All activities shall adhere to the endangered species act B. Government Agencies

1. All permits necessary for construction and occupancy of the Project shall be obtained by the Contractor.

B. State Agencies, ADOT

1. All permits necessary for construction of the Project shall be obtained by the Contractor.

a. ADOT Encroachment Permit for Sign Installations, https://azdot.gov/business/permits/encroachment-permits.

C. County Agencies, Coconino

1. All permits necessary for construction of the Project shall be obtained by the Contractor.

a. Coconino County Encroachment Permit, https://co-coconino-az.smartgovcommunity.com/Public/Home.

Section 108. - PROSECUTION AND PROGRESS Delete Section 108 Prosecution and Progress in its entirety.

Section 109. - MEASUREMENT AND PAYMENT Delete Subsections 109.06 Pricing and Adjustments, 109.07 Estimated Work, 109.08 Progress Payments, and 109.09 Final Payment.

Section 109. - MEASUREMENT AND PAYMENT Delete Table 109-1 of Subsection 109.01 Measurement of Work and replace with the following:

Table 109-1 Decimal Accuracy of Quantities for Payment

Pay Item
Level of Precision
Acre
0.01
Cubic Foot
1
Cubic Yard
1
Cubic Yard Exception - Structure Excavation; Sheathing; Materials; Bedding, Bed Course, and Backfill, Materials; Gabions;
0.1
Cubic Yard Exception – Concrete; Masonry
0.01
Day
1
Each
1
Gallon
1
Hour
0.1
Linear Foot
1
Linear Foot Exception - Timber, Steel, and Concrete Piles
0.1
M-Gallon
0.1
Mile
0.01
Month
0.1
Pound
1
Square Foot
0.1
Square Yard
0.1
Station
0.1
Thousand Board Feet Measure
0.01
Ton
0.1
Ton Exception - Calcium Chloride; Sodium Chloride; Hydrated Lime; Bituminous Materials; Pavements; Bed Course Materials
0.01
Week
0.1

Section 109. - MEASUREMENT AND PAYMENT Delete Subsection 109.02(c) Measurement Terms and Definitions, Contract quantity and replace with:

(c) Contract quantity. The quantity to be paid is the quantity listed in the bid schedule. The contract quantity will be adjusted for authorized changes that affect the quantity or for errors made in computing this quantity when that error exceeds 15% or more. If there is evidence that a quantity specific as a contract quantity is incorrect by 15% or more, submit calculations, drawings, or other evidence indicating why the quantity is in error and request in writing that the quantity be adjusted.

Section 109. - MEASUREMENT AND PAYMENT Add the following to Subsection 109.03(c) Weighing Procedures and Devices, 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.

Section 152. – CONSTRUCTION SURVEY AND STAKING Delete Subsection 152.05(d)(2) Survey and Staking Requirements, Slope and reference stakes, Conventional survey methods and replace with the following:

(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 152-1.

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.

Replace Table 152-1 Construction Survey and Staking Tolerances with the following:

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

Tolerance Class A
Tolerance Class B (7)
Staking Phase
Horizontal
Vertical
Horizontal
Vertical

Control points set from existing Government control points

±0.03 feet
±0.01 feet × √N (2)
±0.16 feet
±0.16 feet ×√N (2)
Mapping, topography, and cross-section Points
±0.16 feet
±0.16 feet
±1.00 feet
±0.50 feet
Centerline points (3)
±0.06 feet
±0.06 feet
±0.16 feet
±0.16 feet
Slope-stake and slope-stake references (4)
±0.16 feet
±0.16 feet
±0.50 feet
±0.16 feet
Culverts, ditches, and minor drainage structures stakes
±0.16 feet
±0.06 feet
±0.50 feet
±0.16 feet
Retaining walls stakes
±0.06 feet
±0.03 feet
±0.06 feet
±0.03 feet
Curb and gutter stakes
±0.06 feet
±0.03 feet
±0.06 feet
±0.03 feet
Bridge substructures stakes
±0.03 feet (5)
±0.03 feet
±0.03 feet (5)
±0.03 feet
Bridge superstructures stakes
±0.03 feet (5)
±0.03 feet
±0.03 feet (5)
±0.03 feet
Clearing and grubbing limit stakes
±1.00 feet
–
±2.00 feet
—
Roadway subgrade finish stakes- Tolerance Class A (6)
±0.16 feet
±0.03 feet
±0.50 feet
±0.16 feet
Roadway finish grade stakes (6)
±0.16 feet
±0.03 feet
±0.50 feet
±0.16 feet

(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) For Tolerance Class A only, 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) For Tolerance Class A only, includes paved ditches.

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

Section 153. – CONTRACTOR QUALITY CONTROL Delete Subsection 153.02 Qualifications 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 experience in construction, inspection, quality control and material testing on construction projects of similar type and scope.

(b) Testers. Provide testers with at least 1 years' experience in the type of sampling and testing required, and with one of the following for the type of sampling and testing performed:

(1) National Institute for Certification in Engineering Technologies (NICET) Level II certification in construction materials testing for similar material types or equivalent state or industry certification;

(2) Certification by a state or regional certification program, such as Western Alliance for Quality Transportation Construction or Northeast Transportation Technician Certification Program; or

(3) At least 1 year of employment by an AASHTO accredited laboratory performing equivalent sampling and testing with competence according to AASHTO R 18.

Section 153. – CONTRACTOR QUALITY CONTROL Add the following paragraph to the end of Subsection 153.03(b) Quality Control Plan, QC 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.

Section 153. – CONTRACTOR QUALITY CONTROL Delete Subsection 153.08 Records and Control Charts and replace with the following:

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

Section 155. – SCHEDULES FOR CONSTRUCTION CONTRACTS Delete Section 155 Schedules for Construction Contracts in its entirety and replace with the following:

Description

155.01 This work consists of scheduling, monitoring, and reporting the progress of construction activities.

155.02 Definitions.

(a) Baseline construction schedule. The first approved construction schedule submitted showing the order to perform the work, and the dates for starting and completing the work. Once approved the baseline construction schedule cannot be changed.

(b) Construction Schedule CPM schedule. A CPM schedule includes a time-scaled logic diagram, tabular schedule, written narrative, and a submittal list.

The time-scaled logic diagram is a computer-generated diagram showing the sequence in which the Contractor, in coordination with subcontractors, plans to perform the work; the interdependence of all activities and milestones; the work completed through the data date; and the remaining work necessary to complete the project.

(c) Construction schedule update. An update to the previously approved construction schedule that shows the completed work and the remaining work necessary to complete the project and includes progressing of the schedule, changes to the schedule logic, changes to the schedule activities, changes to the activity durations, or any other modification to the schedule of planned work. A construction schedule update may show construction being completed at a date other than the contract completion date.

(d) Critical path. The longest sequence of activities in the CPM schedule that determines the project’s duration. If the duration of any activity on the critical path is changed, the time required to complete the project will change unless a separate CPM schedule adjustment is made.

Construction Requirements

155.03 General.

Designate an individual who will be the authorized representative responsible for the schedule. Submit the name of the authorized representative with the baseline schedule submission.

Failure to include elements of work in the schedule that are required for performance of the contract, even if approved by the Government, will not excuse the Contractor from completing the work required by the contract completion date.

Approval of the construction schedule does not relieve the Contractor of the responsibility to schedule the work to meet the contract requirements.

Do not suppress or sequester float. Do not alter planned durations and sequencing to give the appearance that activities do not have float. Float time within the construction schedule is not for use or benefit of either the Government or the Contractor but is a jointly owned project resource available to both parties as needed to meet the contract completion date. Either party has the full use of float until it is depleted.

155.04 Baseline Construction Schedule. Submit a construction schedule within 7 days of the NTP. Include a title page or header block with the contract number, project name, Contractor name, contract completion date, date of submittal, and submittal number. Show all activities.

Prepare and submit a CPM construction schedule.

CPM schedule. Depict the order and interdependence of all activities and the sequence of the work that will be accomplished by the Contractor and subcontractors.

Do not provide logic relationships between unrelated activities. Do not constrict start or finish dates without rationale.

Obtain approval before using lags or leads in the construction schedule. Remove lags or leads and replace with an activity identifying the lag or lead upon request.

(1) Time-scaled logic diagram.

(a) Show activity descriptions. Relate activities or groups of activities to pay items. Include activities for submittals, submittal reviews, fabrication, and deliveries. Do not include continuous activities (such as traffic control and QC).

(b) Show activity name or description with the activity bar on the diagram.

(c) Show original and remaining durations for construction activities. Break construction activities into subtasks with activity durations no longer than 20 workdays.

(d) Show original and remaining durations of non-construction activities (such as mobilization and submittals). Include pay item number, and the fabrication and delivery of key materials. Non-construction activities may have durations exceeding 20 workdays consistent with the contract. Indicate intended submittal dates and delivery dates for fabrication and delivery activities. Allow for review of each submittal.

(e) Start the construction schedule with the date of the NTP and conclude with a milestone that shows the contract completion date.

(f) Show total float and free float.

(g) Show relationship lines. Include at least one predecessor and one successor activity for each activity, except for the NTP and contract completion date.

(h) Show the sequence and interdependence of all activities.

(i) Identify the critical path.

(2) Tabular schedule. Submit a tabular schedule sorted by total float. Include the following information in the tabular schedule:

Activity number;

Activity description;

Activity percent complete;

Original and remaining duration;

Early and late schedule dates;

Total float;

(3) Written narrative. Describe the rationale and assumptions used in the development of the construction schedule. Ensure there are no conflicts between the diagram and the narrative. Include the following:

1. Description of the planned critical path and the general sequence of work.

Information and references to adequately define the scope of work by pay item included in each major activity type (such as roadway excavation and aggregate base course). Include station numbers and location.

Description of the basis for the calculation of the duration for major activities, to be stated as quantity production rates.

Description of workdays per week, number of shifts per workday, and number of hours per shift.

Include anticipated holidays, non-workdays, winter shutdowns, and other constraints within the contract. Describe calendars used in the schedule module and list the calendar used for each activity in the schedule module.

Name of the subcontractor or supplier performing an activity on the schedule diagram. State assumptions made in the scheduling of the subcontractor’s or supplier’s work.

Description of site mobilization and critical delivery dates for equipment and material that can affect completion of the project.

A description of organizational limitations (such as resource constraints or subcontractor commitments) which limit scheduling flexibility.

A list and description of constraints used in the CPM scheduling software.

(4) Submittal list. Submit a list of drawings and other submittals by pay item number required for the entire contract period. Include the following information for each drawing or submittal:

1. Pay item number and description;

Planned date of initial submittal; and Planned date of CO’s initial response.

Submit the construction schedule according to Subsection 104.04.

Within 7 days of submission, the construction schedule will be approved or rejected. If rejected, submit a corrected schedule within 7 days. If rejected again, schedule a meeting within 3 days to discuss corrections and submit another construction schedule.

If a construction schedule is not received within 14 days after the NTP is issued, the CO will withhold the progress payment h until the construction schedule is received.

The approved construction schedule with supporting documents becomes the baseline construction schedule.

155.05 Construction Schedule Update. Submit a construction schedule update by the 7th day of each month, or on the date established by the CO.

Submit the construction schedule update according to Subsection 104.04.

Do not make changes to the schedule logic, activities, or critical path without prior approval.

Within 7 days of submission, the construction schedule update will be approved or rejected. If rejected, submit a corrected construction schedule within 7 days. If rejected again, schedule a meeting within 3 days to discuss corrections and submit another construction schedule.

Submitting a proposed construction schedule update is not considered a notification of delay or of other basis for change. Continue to submit monthly construction schedule updates until a construction schedule update is approved.

Approval of a construction schedule update showing completion past the fixed completion date will not alter the fixed completion date or affect the Government's rights under the contract.

(a) Update summary. Provide a summary of the changes and progressing made to the construction schedule since the last approved construction schedule update.

(b) Written narrative. Submit an update of the written narrative identifying adjustments made to each operation since the last update. Include the following:

(1) Equipment added or removed from the project;

(2) Changes to labor (such as added crews or subcontractors);

(3) Work shift adjustments (such as extended hours or added shifts);

(4) Changes to anticipated periods of suspension or holiday;

(5) Changes in material delivery;

(6) Early completion of individual work items;

(7) Efficiency of operations;

(8) Changes to the critical path and logic revisions;

(9) Delays and disruptions that are ongoing as of the date of the proposed construction schedule update. If delays or disruptions have occurred, propose efforts to return the project to a schedule consistent with the contract requirements including the commitment of additional resources or other appropriate action; and

(10) Notification that completion date or other contract requirements will not be met, if applicable.

(c) Submittal list. Provide an update to the submittal list. Include the following:

(1) Actual dates for submittals;

(2) Proposed dates for anticipated submittals;

(3) CO’s responses (approved, rejected, or approved as noted); and

(4) Comments.

(d) CPM schedule updates.

(1) Tabular schedule. Update the tabular schedule. Include the following:

1. Actual start and finish dates for completed activities;

Remaining duration required to complete each activity started, or scheduled to start, but not completed;

Float remaining for each activity;

Percentages for completed and partially completed activities;

Additional tabular schedules using different sort parameters if requested; and Revised construction activities affected by impacts addressed with a time impact analysis. Include a revised completion date for the total work.

(2) Updated time-scaled logic diagram. Update the diagram and show the approved baseline construction schedule on the construction schedule update for comparison. Show the data date for the update.

155.06 Progress Meetings. Schedule and facilitate a weekly progress meeting, or other recurrence interval approved by the CO. Invite the CO, superintendent, QCM, and other personnel directly supervising or managing the project.

Provide a two-week look-ahead schedule one day before the meeting. Review actual progress as compared to the planned progress and review planned activities for the upcoming 2 weeks. Discuss the status of submittals, QC documentation, contract modifications, and requests for information.

155.07 Acceptance. Construction schedules and supporting documents will be evaluated under Subsection 106.02.

Measurement and Payment

155.08 Do not measure for payment. See Subsection 109.05.

Section 155. – SCHEDULES FOR CONSTRUCTION CONTRACTS Delete Section 155 Schedules for Construction Contracts in its entirety and replace with the following:

155.01 General. Provide a construction schedule showing all major activities start and end dates for completion the period of performance for the contract.

Section 201. - CLEARING AND GRUBBING Delete paragraph (c) in Subsection 201.04(c) Clearing and replace with the following:

(c) In areas outside the excavation, embankment, and slope rounding limits, cut stumps to maximum stump height shown in table below.

Fall and buck the merchantable material at lengths longer than the minimum lengths listed, or in multiples thereof (i.e. 8 ft, 16 ft, 24 ft, 32 ft), not to exceed 16 feet in length to allow for transportation of the material. Merchantable timber shall be decked at designated location(s).

Section 201. - CLEARING AND GRUBBING Delete Subsection 201.06 Disposal and replace with the following:

201.06 Disposal. Merchantable timber is Government property. Dispose of clearing and grubbing debris according to Subsection 203.07.

Section 203. - REMOVAL OF STRUCTURES AND OBSTRUCTIONS Delete the first paragraph after Subsection b in 203.05 Removing Material and replace with the following:

Remove structures and obstructions in the roadbed to 12 inches below subgrade elevation. Remove structures and obstructions outside the roadbed to 12 inches below finished ground or to the natural stream bottom.

Section 203. - REMOVAL OF STRUCTURES AND OBSTRUCTIONS Add the following to Subsection 203.07 Disposing of Material:

Dispose of unsuitable and excess material according to the specified method(s) as follows:

(a) Windrowing Construction Slash. Place construction slash outside the roadway in neat, compacted windrows approximately parallel to and along the toe line of embankment slopes. Do not permit the top of the windrows to extend above subgrade. Use construction equipment to matt down all material in a windrow to form a compact and uniform pile. Construct breaks of at least 15 feet at least every 200 feet in a windrow. Do not place windrows against trees.

(b) Scattering. Scatter construction slash in designated areas without damaging trees. Limb all logs. Place logs and stumps away from trees, positioned so they will not roll, and are not on top of one another. Limb and scatter other construction slash to reduce slash concentrations. When scattering for erosion control, place construction slash as flat as practicable on the completed slope.

(c) Chipping. Use an approved chipping machine to chip slash longer than 3 feet. Deposit chips on embankment slopes or outside the roadway to a loose depth less than 6 inches. Minor amounts of chips or ground woody material may be permitted within the roadway if they are thoroughly mixed with soil and do not form a layer.

(d) Debris Mat. Use tree limbs, tops, cull logs, split stumps, wood chunks, and other debris to form a mat upon which construction equipment is operated. Place stumps upside down and blend stumps into the mat.

(e) Decking. Remove brush from designated log deck areas. Limb and top logs.

Logs not meeting the Utilization Standards described in Subsection 201.04(c) shall be cut to lengths less than 10 feet and decked in designated log deck location.

Merchantable timber not associated with an existing timber sale shall be cut to length meeting the Utilization Standards described in Subsection 201.04(c).

Deck logs so that logs are piled parallel to one another; can be removed by standard log loading equipment; will not damage standing trees; will not interfere with drainage, and will not roll. Keep logs in log decks free of brush and soil.

(f) Removal to designated locations. Remove construction slash to designated locations.

(g) Piling. Pile construction slash in designated areas. Place and construct piles so that if the piles are burned, the burning will not damage remaining trees. Keep piles free of dirt from stumps.

Section 204. – EXCAVATION AND EMBANKMENT Delete and replace the first paragraph in Subsection 204.11 Compaction with the following:

When determining the quantity of material retained on a No. 4 sieve for compaction, use AASHTO T27. Compact each lift of material to a firm and stable condition and until there is no visible evidence of further consolidation or deflection. Compact using one of the following as specified:

Add the following to Subsection 204.11 Compaction:

(d) Adjust the moisture content of the material to a moisture content suitable for compaction. Fill the interstices around rock with earth or other fine material as practical. Operate roller compaction equipment over the full width of each layer until there is no visible evidence of further consolidation or, if when a sheepsfoot roller is used, the roller “walks out” of the layer. Make at least three complete passes. Use compression-type rollers at speeds less than 6 feet per second and vibratory rollers at speeds less than 3 feet per second. Ensure rollers meet the following requirements:

(1) Steel wheeled rollers, other than vibratory, capable of exerting a force of not less than 250 pounds per inch of width of the compression roll or rolls.

(2) Vibratory steel wheeled rollers equipped with amplitude and frequency controls with a minimum dynamic force of 30,000 pounds impact per vibration, specifically designed to compact the material on which it is used.

(3) Pneumatic-tired rollers with smooth tread tires of equal size that will provide a uniform compacting pressure for the full width of the roller and capable of exerting a ground pressure of at least 80 psi.

(4) Sheepsfoot, tamping, or grid rollers capable of exerting a force of 250 pounds per inch of width of roller drum

(e) Adjust the moisture content of the material to a moisture content suitable for compaction. Fill the interstices around rock with earth or other fine material as practical. Operate hauling and spreading equipment uniformly over the full width of each layer until there is no visible evidence of further consolidation. Make at least three complete passes.

(f). Adjust the moisture content of the material to a moisture content suitable for compaction. Fill the interstices around rock with earth or other fine material as practical. Operate hauling and spreading equipment uniformly over the full width of each layer.

(g) Adjust the moisture content of the material to a moisture content suitable for compaction. Compact the complete surface with a bucket of an excavator larger than 39,000 pounds Gross Vehicle Weight using a minimum of three blows. Overlap compaction by ½ width of bucket.

(h) Adjust the moisture content of the material to a moisture content suitable for compaction. Compact using an approved mechanical tamper for a minimum of three complete passes.

When compacting with rollers or hauling and spreading equipment is not practical, use approved mechanical tampers for a minimum of three complete passes.

Section 204. – EXCAVATION AND EMBANKMENT

Replace the first paragraph of Subsection 204.13 replace with the following.

204.13 Sloping, Shaping, and Finishing. Complete slopes, ditches, culverts, riprap, and other underground minor structures before placing aggregate courses. Slope, shape, and finish to the designated tolerance class as defined in Table 204-2 as follows:

Add the following table to Section 204.

Table 204-2 Construction Tolerances

Dimension
Tolerance Class
A
B
C
D
Roadbed width (ft)
+0.5
+1.5
+2.0
+2.0
Subgrade elevation1 (ft)
+-0.1
+-1.0
+-3.0
+-5.0
Horizontal alignment (ft)
+-0.2
+-1.5
+-5.0
+-10.0
Vertical alignment (%)
+-1
+-1
+-2
+-2
Slopes, excavation and embankment (%)
+-3
+-3
+-3
+-3

1 Subgrade elevation tolerance applies to the cut or fill shown in the staking information unless otherwise agreed to.

Section 209. - STRUCTURE EXCAVATION AND BACKFILL Delete and replace Subsection 209.10 Compacting with the following:

Compact per Subsection 204.11.

Section 251. – RIPRAP Delete and replace Subsection 251.07 Riprap Gradation with the following:

Size method. For source and production approval, test individual riprap using the size method, by confirming that the largest rocks have an intermediate dimension greater than the upper limit of the D85 size range shown and the smallest accessible rocks have an intermediate dimension within the lower D15 size range as shown in Table 705-1.

Delete “FLH T 521” and “Subsection 251.07(b)” and replace both with “Subsection 251.07” in Table 251-1 Sampling, Testing, and Acceptance Requirements.

Section 301. - UNTREATED AGGREGATE COURSES Add the following to Subsection 301.03 General:

Written approval of the roadbed is required before placing aggregate.

For pit run material, furnish material smaller than the maximum size identified in the plans, no gradation will be required otherwise. After processing on the road, remove all oversize material from the road and dispose as directed by the CO.

Provide additives or binder, if required, at the proportions specified.

Develop and use Government furnished sources according to Section 105.

If the aggregate is produced and stockpiled before placement, handle and stockpile according to Section 314.

Section 301. - UNTREATED AGGREGATE COURSES Delete and Replace Subsection 301.05 Compacting with the following:

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

Compact the aggregate using one of the following methods as specified:

(a) Compaction A. Operating spreading and hauling equipment over the full width of the travelway.

(b) Compaction B. Operate rollers and compact as specified in Subsection 204.11(a)(4)(a).

(c) Compaction C. Moisten or dry the aggregate to a uniform moisture content between 5 and 7 percent based on total dry weight of the mixture. Operate rollers and compact as specified in Subsection 204.11(a)(4)(a).

(d) Compaction D. Compact to a density of at least 95.0 percent of the maximum density, as determined by AASHTO T 99, method C or D.

(e) Compaction E.

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