FR304 Supp Specs.pdf
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- Attached to
- Kimball Creek Culvert Replacement FR-304
- Solicitation number
- 12445526R0001
- Issued by
-
Department of Agriculture Forest Service
About this file
This document is a Forest Service Supplemental Specification (FSSS) for a culvert replacement project on Forest Road 304 at Milepost 4.285 in the Superior National Forest. The specification provides detailed technical requirements and modifications to the standard specifications for construction of roads and bridges on federal highway projects, specifically focusing on the Kimball Creek Culvert Replacement.
The document includes comprehensive technical guidance across multiple sections such as material sources, quality control, construction methods, excavation, embankment, compaction, drainage features, and soil erosion control. Key requirements include specific gradation and material specifications for aggregates, precise compaction methods, erosion control measures, and detailed instructions for site preparation, staking, and construction techniques. The specifications are designed to ensure high-quality construction practices tailored to the forest environment, with particular attention to environmental preservation and proper infrastructure installation.
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Other files
| File | Type | Posted |
|---|---|---|
| RFI Response 20260128.docx | DOCX document | |
| Kimball.GEOreport 1.pdf | ||
| MN ERFO FS SPERI909 2022-1(1)_Plans_adv (revised01282026).pdf | ||
| Questions and Answers.docx | DOCX document | |
| MN ERFO FS SPERI909 2022-1(1) - REBAR ADV.pdf | ||
| MN ERFO FS SPERI909 2022-1(1)_Plan S02_Revised.pdf | ||
| SF 1442 Solicitation.pdf | ||
| DB.pdf | ||
| Location Map.jpeg | JPEG file | |
| FR304 SOI.pdf | ||
| MN ERFO FS SPERI909 2022-1(1)_Plans_adv (1).pdf | ||
| FR304 SOW.pdf |
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Text version
SUPERIOR NATIONAL
FOREST
FR 304 MP 4.285 KIMBALL CREEK CULVERT REPLACEMENT
FOREST SERVICE SUPPLEMENTAL SPECIFICATIONS (FSSS) TO THE STANDARD
SPECIFICATIONS FOR CONSTRUCTION OF ROADS AND BRIDGES ON FEDERAL
HIGHWAY PROJECTS FP-14
Table of Contents Preface
101 - Terms¸ Format¸ and Definitions
101.01 Meaning of Terms
101.03 Abbreviations
101.04 Definitions
102 - Bid¸ Award¸ and Execution of Contract
Delete Section 102
103 - Scope of Work
Delete Subsections 103.02, 103.03, 103.04, 103.05
104 - Control of Work
Delete Subsections 104.01, 104.02, 104.04
104.03(c) As-built Drawings
104.06 Use of Roads by Contractor
105 - Control of Material
105.02 Material sources
105.02(c) Contractor-located sources
105.02 (a) Government-provided sources
105.05 Use of Material Found in the Work
106 - Acceptance of Work
106.01 Conformity with Contract Requirements
106.02 Visual Inspection
106.07 Partial and Final Acceptance
107 - Legal Relations and Responsibility to the Public
107.02 Protection and Restoration of Property and Landscape
Delete Subsection 107.05
107.08 Sanitation, Health, and Safety
108 - Prosecution and Progress
Delete Section 108
109 - Measurement and Payment
Delete Subsections 109.06, 109.07, 109.08, 109.09
109.01 Measurement of Work
109.02 Measurement Terms and Definitions
152 - Construction Survey and Staking
152.04 General
152.05 Survey and Staking Requirements
Table 152-1 Construction Survey and Staking Tolerances
153 - Contractor Quality Control
153.02 Qualifications
153.03 Quality Control Plan
153.07 Records and control charts
Delete Section 155
156 - Public Traffic
Section 156. – PUBLIC TRAFFIC
157 - Soil Erosion and Sediment Control
157.04 General
157.10 Diversions
201 - Clearing and Grubbing
201.04 Clearing
201.04 Clearing
201.06 Disposal
203 - Removal of Structures and Obstructions
203.04 (b) General
203.05 Disposing of Material
204 - Excavation and Embankment
Section 204. — EXCAVATION AND EMBANKMENT
205 - Rock Blasting
205.03 Regulations
205.06 Preblast condition survey and vibration monitoring and control
205.07 Test Blasting
205.08 Blasting
207 - Earthwork Geotextiles
207.04(c)(1) First layer placement and compaction
208 - Structure Excavation and Backfill for Selected Major Structures
208.07 Dewatering
208.09 Backfill
209 - Structure Excavation and Backfill
209.09 Backfill
209.10 Compacting
213 - Subgrade Stabilization
213.05 General
301 - Untreated Aggregate Courses
301.03 General
301.05 Compacting
302 - Minor Crushed Aggregate
302.04 Placing Crushed Aggregate
302.05 Compacting and Finishing Crushed Aggregate
303 - Road Reconditioning
303.07 Roadway Reconditioning
314 - Stockpiled Aggregates
314.01 Description
314.04 Stockpile Site
552 - Structural Concrete
552.01 Description
552.02 Material
552.03 Composition (Concrete Mix Design)
552.03(w) Composition (Concrete Mix Design)
552.04 Handling and Storing Material
552.20 Acceptance
603 - Structural Plate Structures
603.03 General
603.04 Erecting
624 - Topsoil
624.04 Placing Topsoil
624.04 Placing Topsoil
625 - Turf Establishment
Section 625. — TURF ESTABLISHMENT
633 - Permanent Traffic Control
633.02 Material
633.03 General
633.05 (a) Fabrication
635 - Temporary Traffic Control
635.04 (d) General
635.04 (g) General
635.04 (i) General
635.04 (j) General
635.07 Construction Signs
703 - Aggregate
703.05 (c) Surface course aggregate. (3) Plastic Index
703.05 Subbase, Base, Surface Course, and Screened Aggregate
704 - Soil
704.02 Bedding Material
704.08 Select Granular Backfill
704.08 Select Granular Backfill. (a) Quality requirements. (2)
704.08 Select Granular Backfill. Table 704-2
705 - Rock
705.02 Riprap. Table 705-1
725 - Miscellaneous Material
725.04 Pozzolans
725.19 Bentonite
Preface
Delete all but the first paragraph and add the following:
The Forest Service, US Department of Agriculture has adopted Standard Specifications for Construction of Roads and Bridges on Federal Highway Projects FP-14 for construction of National Forest System Roads. The following Special Contract Requirements amend and supplement the Standard Specifications for Construction of Roads and Bridges on Federal Highway Projects (FP-14), U. S.
Department of Transportation, Federal Highway Administration. Only United States Customary units of measure will be used on this project.
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.
MP — milepost location ppm — parts per million volume
STA station location
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.
Contract Time — The specified time allowed for the completion of the contract work. It may be a set date or number of days from the Notice to Proceed.
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 — Written notice to the Contractor that establishes the starting date for performance of the contract. See FAR Clause 52.211-10 Commencement, Prosecution, and Completion of 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.
Work — The entire completed construction or various separately identifiable parts required to be performed or furnished under the contract. Work includes and is the result of performing or furnishing design professional services and construction required by the contract.
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.
Completion Date — The date set at the Notice to Proceed by which all contract work is to be complete.
Final Acceptance — The point at which the Government formally accepts the work and relieves the Contractor of further responsibility for the maintenance of the project. This does not include warranties, which remain in effect until they expire. See FAR Clause 52.246-21 Warranty of Construction.
Final Completion — The point at which all work and tests are complete, and all test results have been received. For typical projects, the point at which all punch-list items are acceptably completed, and all turf is established. A request for final acceptance of the work cannot be made by the Contractor until this point is reached.
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.
Partial Acceptance — The point on a project where a segment of the work is completed and, at the Government's option, it takes possession for its use. The CO may relieve the Contractor of further responsibility for maintaining partially accepted work.
Period of Performance — The time from award of the contract to final acceptance of all contract work by the Government.
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.
Delete the first sentence of the first paragraph Subsection 104.03(c) and replace with the following:
104.03(c) As-built Drawings.
Furnish one full-size (24-inch by 36-inch) paper copy of the plans from the Government-provided electronic plans and use this set of plans exclusively for as-built drawings.
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
Add the following to Subsection 105.02:
105.02 Material sources.
Provide embankment material according to Section 204 and riprap according to Section 251. At the Contractor's option, material may be sourced from USFS Osprey Pit and Thompson Lake Pit. However, the Government does not guarantee that materials from these sites will be suitable for use.
105.02_National_11_1_2016
Add the following to Subsection 105.02c:
105.02(c) 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 expertise 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:
Weeds & methods specific to this project:
Weed species or applicable weed list Method
Canada thistle (Cirsium arvense) Visual inspection of gravel source by Forest Service approved inspector
Tansy (Tanacetum vulgare) Visual inspection of gravel source by Forest Service approved inspector
Spotted knapweed (Centaurea maculosa) Visual inspection of gravel source by Forest Service approved inspector
St. John’s wort (Hypericum perforatum) Visual inspection of gravel source by Forest Service approved inspector
The Osprey Pit and Thompson Lake Pit have been inspected in the past couple of years and there are very small areas of tansy. The potential for invasive species in material from these pits is low.
105.02_National_7_18_2017
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:
Have the work accepted at a reduced price; or 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_11_1_2016
Delete Subsection 106.07.
106.07 Partial and Final Acceptance.
107 - Legal Relations and Responsibility to the Public 107.02_National_11_1_2016
Add the following to Subsection 107.02:
107.02 Protection and Restoration of Property and Landscape.
Do not work within the wetted perimeter of streams before July 1 or after September 15.
107.05_National_7_18_2017
Delete Subsection 107.05.
Delete Subsection 107.05.
107.08_National_3_3_2021
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
Pay Item Level of Precision Linear Foot 1
Exception--Timber, Steel, and concrete Piles 0.1 Station 0.1 Mile 0.01 Square Foot 0.1 Square Yard 0.1 Each 1 Acre 0.01 Gallon 1 M-Gals. 0.1 Cubic Yard 1
Exception--Structure Excavation; Sheathing Materials; Bedding, Bed Course, and Backfill Materials; Gabions;
0.1
Exception--Concrete; Masonry 0.01 Pound 1 Ton 0.1
Exception--Calcium Chloride;
Sodium Chloride; Hydrated Lime;
Bituminous Materials; Pavements;
Bed Course Materials
0.01
Hour 0.1
MFBM 0.01
Station Yard 1 Cubic Yard Mile 1 Ton Mile 1
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.
152 - Construction Survey and Staking 152.00_National_12_12_2016
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)
Staking Phase Horizontal Vertical
Control points set from existing Government control points- Tolerance Class A
±0.03 feet (±10 millimeters)
±0.01 feet × N
(±3 millimeters × N )(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)
Slope-stake and slope-stake references- Tolerance Class A (4)
±0.16 feet (±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)
Retaining walls stakes ±0.06 feet (±20 millimeters)
±0.03 feet (±10 millimeters)
Curb and gutter stakes ±0.06 feet (±20 millimeters)
±0.03 feet (±10 millimeters)
Bridge substructures stakes ±0.03 feet (±10 millimeters)(5)
±0.03 feet (±10 millimeters)
Bridge superstructures stakes ±0.03 feet (±10 millimeters)(5)
±0.03 feet (±10 millimeters)
Clearing and grubbing limit stakes- Tolerance Class A
±1.00 feet (±300 millimeters)
Roadway subgrade finish stakes- Tolerance Class A (6)
±0.16 feet (±50 millimeters)
±0.03 feet (±10 millimeters)
Roadway finish grade stakes (6) ±0.16 feet (±50 millimeters)
±0.03 feet (±10 millimeters)
Table 152-1 Construction Survey and Staking Tolerances (continued) (1)
Staking Phase Horizontal Vertical
Control points set from existing Government control points –Tolerance Class B (7)
±0.16 feet (±20 millimeters)
±0.16 feet ×
(±20 millimeters × )(2)
Mapping, topography, and cross-section points–Tolerance Class B (7)
±1.00 feet (±300 millimeters)
±0.50 feet (±150 millimeters)
Centerline points including (PC), (PT), (POT),(POC), and references–Tolerance Class B (7)
±0.16 feet (±20 millimeters)
±0.16 feet (±20 millimeters)
Slope-stake and slope-stake references– Tolerance Class B (7)
±0.50 feet (±50 millimeters)
±0.16 feet ±50 millimeters)
Culverts, ditches, and minor drainage structures stakes–Tolerance Class B (7)
±0.50 feet (±150 millimeters)
±0.16 feet (±20 millimeters)
Clearing and grubbing limit stakes– Tolerance Class B (7)
±2.00 feet (±600 millimeters)
Roadway subgrade finish stakes– Tolerance Class B (7)
±0.50 feet (±50 millimeters)
±0.16 feet (±10 millimeters)
Roadway finish grade stakes–Tolerance Class B (7)
±0.50 feet (±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.
N
N
153 - Contractor Quality Control 153.02_National_11_1_2016
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_11_1_2016
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_11_1_2016
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.
155 - Schedules for Construction Contracts
155.00_National_11_9_2016
Delete Section 155 in its entirety.
Delete Section 155.
156 - Public Traffic 156.00_National_2_5_2019
Delete Section 156 in its entirety and replace with the following:
Section 156. – PUBLIC TRAFFIC Description
156.01 This work consists of controlling and protecting public traffic adjacent to and within the project.
Material
156.02 Conform to the MUTCD and the following Sections and Subsections:
Permanent Traffic Control 633
Traffic Signing and Marking Material 718
Concrete Barriers and Precast Guardwalls 618
Temporary plastic fence 710.11
Construction Requirements
156.03 General. Accommodate traffic according to MUTCD, approved traffic control plan and this section. Perform work in a manner that ensures safety and convenience of the public. Unless otherwise provided for in Table 156-1, keep existing roads open to all traffic during road improvement work, and maintain them in a condition that will adequately accommodate traffic. Delays may not exceed 30 minutes at any one time followed by an open period of no less than 30 minutes. Accommodate public traffic on roads adjacent to and within the project until the project is accepted according to Subsection 106.07(b).
Submit traffic control plan at least 30 days prior to intended use. Perform no work that interferes or conflicts with traffic or existing access to the roadway surface until a traffic control plan has been approved.
Post construction signs and traffic control devices in conformance with MUTCD and Forest Service EM 7100-15. All required signs will be in place and approved prior to beginning work on project.
If the Contractor agrees in writing to allow public traffic to use a new road being constructed prior to completion, it will be considered an existing road for traffic control purposes.
156.04 Temporary Traffic Control. Install and maintain temporary traffic control devices adjacent to and within the project as required by the approved traffic control plan and the MUTCD. Install and maintain traffic control devices as follows:
(a) Furnish and install traffic control devices before the start of construction operations.
(b) All detours outside of clearing limits will be approved in writing by the Contracting Officer as part of the traffic control plan.
(c) Install only those traffic control devices needed for each stage or phase.
(d) Relocate temporary traffic control devices as necessary.
(e) Remove devices that no longer apply to the existing conditions.
(f) Immediately replace any device that is lost, stolen, destroyed, or inoperative.
(g) Keep temporary traffic control devices clean.
(h) Remove all temporary traffic control devices upon contract completion or when approved.
(i) When required, use flaggers certified by the American Traffic Safety Services Association, the National Safety Council, the International Municipal Signal Association, a state agency, or other acceptable organization. Perform the work described under MUTCD Part 6. Use type III, VII, VIII, or IX retroreflective sheeting on flagger paddles. Do not use flags. Flaggers must wear high visibility safety apparel as required by MUTCD 6E.02.
156.05 Temporary Closures No road segments other than the project area are planned on being closed during construction.
Prior to closing any roads during construction, give written notice to the Contracting Officer at least 10 days in advance.
156.06 Acceptance. Public traffic work will be evaluated under Subsection 106.02.
Measurement and Payment
156.07 Do not measure Public Traffic for payment. Payment for contract work is provided indirectly.
See Subsection 109.05.
156.10 Acceptance. Public traffic work will be evaluated under Subsection 106.02.
157 - Soil Erosion and Sediment Control 157.04_National_11_1_2016
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.
157.10 Diversions.
Submit a Stream Diversion Plan according to Subsection 104.03 at least 30 days before starting temporary stream diversion operations. Provide a Stream Diversion Plan capable of diverting no less than a 2-year storm event. Furnish design drawings and details with supporting calculations that bear the seal and signature of a professional engineer licensed in the state of Minnesota.
Include the following:
Type, size, location, elevation, discharge flow, and method of installation, removal of stream diversions, and means of access;
Sequence and schedule for dewatering and rewatering;
Timing of installation and removal, and duration of placement;
How pumped water from dewatering will be treated before it is discharged including identifying the location of filter bags;
Best management practices to ensure no erosion or turbidity occurs to the live waterway; and
Obtaining any required permits from the Minnesota Department of Natural Resources (MnDNR) if dewatering is expected to exceed 10,000 gallons per minute (gpm) or 1 million gallons per day
(MGD).
Do not start temporary stream diversion operations until the Stream Diversion Plan is approved.
201 - Clearing and Grubbing 201.04_National_11_2_2016
Add the following paragraph to Subsection 201.04:
201.04 Clearing.
(e) Do not cut vegetation less than 3 feet in height and less than 3 inches in diameter that is within the clearing limits but beyond the roadway and not in a decking area and that does not interfere with sight distance along the road unless otherwise designated.
201.04_National_9_10_2018
Delete paragraph (c) and replace with the following:
201.04 Clearing
(c) In areas outside the excavation, embankment, and slope rounding limits, cut stumps to maximum stump height shown in table below.
Utilization standards for merchantable timber are listed below. Fall and buck merchantable material into lengths not to exceed eight feet. Pieces (logs) meet utilization standards when such pieces would have met Utilization Standards if bucking lengths were varied to include such material.
Minimum Utilization Standards
Species Maximum Stump Height (inches) Length (feet) Diameter1 (inches) % Net Scale2
Pulp 10 8 4 70
Sawtimber 14 8 7.6 40
1 measured at inside bark at small end
2 in % gross scale
201.06_National_2_22_2018
Delete the first sentence of Subsection 201.06 and replace the following:
201.06 Disposal.
Merchantable timber is Government property.
203 - Removal of Structures and Obstructions 203.04_National_11_2_2016
Make the following changes to Subsection 203.04(b):
203.04 (b) General.
Delete the fifth paragraph of Subsection 203.04(b) and replace with the following:
Remove structures and obstructions in the roadbed to 12 inches (300 millimeters) below subgrade elevation. Remove structures and obstructions outside the roadbed to 12 inches (300 millimeters) below finished ground or to the natural stream bottom.
Delete the seventh paragraph of Subsection 203.04(b) and replace with the following:
When abandoning an existing culvert pipe, remove the upstream and downstream portion of the culvert to within 12 inches (300 millimeters) of the subgrade or embankment slope. Ensure the abandoned pipe is at least 48 inches (1200 millimeters) from a new culvert or structure. Seal the abandoned culvert ends with a tight-fitting plug of concrete at least 6 inches (150 millimeters) thick. Ensure the structure does not entrap water.
203.05_National_9_10_2018
Add the following to Subsection 203.05:
203.05 Disposing of Material.
(e) 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.
(f) 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.
(g) 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.
(h) 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.
(i) 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 ten 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.
(j) Removal to designated locations. Remove construction slash to designated locations.
(k) 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.
204 - Excavation and Embankment 204.00_National_11_4_2016
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:
Topping 704.05
Unclassified borrow 704.06
Water 725.01(c)
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 over-building 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 (300-millimeter) 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 Subsection 204.11(a)(1)(a), by four passes; or
For each additional 6 inches (150 millimeters) or fraction thereof, increase the number of roller passes in Subsection 204.11(a)(1)(b) and (c), by eight passes.
(2) 50 to 80 percent retained on a No. 4 (4.75-millimeter) sieve. Classify the material according to AASHTO M 145. Adjust the moisture content of material classified A-1 through A-5 to a moisture content suitable for compaction. Adjust the moisture content of material classified A-6 and A-7 to within 2 percent of the optimum moisture content. Use AASHTO T 99 to determine the optimum moisture content of the portion of the material passing a No. 4 (4.75-millimeter) sieve.
Multiply this number by the percentage of material passing a No. 4 (4.75-millimeter) sieve, and add 2 percent to determine the optimum moisture content of the material.
Use nonvibratory 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.
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