1.4_SOW_RiceRiverBridge.pdf

STANDARD SPECIFICATIONS FOR CONSTRUCTION OF

ROADS AND BRIDGES ON FEDERAL HIGHWAY PROJECTS

FP-14: US CUSTOMARY UNITS

SPECIAL CONTRACT REQUIREMENTS

FR 2182-4.78 – RICE RIVER BRIDGE

Preface

Delete all but the first paragraph and add the following:

The Forest Service, US Department of Agriculture has adopted FP-14 for construction of National Forest System Roads.

Section 101. Terms, Format and Definitions

101.01 Meaning of Terms.

Add the following:

Delete all references in FP-14 to Transportation Acquisition Regulations (TAR).

101.03 Abbreviations.

Add the following to (a) Acronyms:

AFPA American Forest and Paper Association MSHA Mine Safety and Health Administration NIST National Institute of Standards and Technology NESC National Electrical Safety Code WCLIB West Coast Lumber Inspection Bureau

Add the following to (b) SI Symbols:

mp Milepost ppm Part Per Million

101.04 Definitions.

Delete the following definitions and substitute the following:

Bid Schedule--The Schedule of Items.

Bridge--No definition.

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

Culvert--No definition.

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

http://www.nist.gov/

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

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

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

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

Department of Agriculture.

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

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

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

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

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

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

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

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 in its entirety.

Section 103. Scope of Work

Delete all but subsection 103.01 Intent of Contract.

The intent of this contract is to provide for the rehab of the Rice River Bridge site on Forest Road (FR) 2182. The goal of the project is to remove the existing slotted drains, all the asphalt, current deck railings and then improve the vertical alignment and current drainages. Pave the entire project from beginning to ending termini.

The Contractor shall furnish all labor, materials, equipment, tools, transportation, and supplies necessary to meet the intent of this contract; and shall perform all work in close conformity with the drawings and specifications, and in accordance with the provisions of the contract.

Any work done by the contractor that deviates from the specifications or drawings without prior written approval from the CO will be considered unauthorized.

Project work shall be completed between June 15, 2020 and October 16, 2020 at the approval of the C.O. All project work shall be completed within 60 calendar days following the start of work.

Section 104. Control of Work

104 Control of Work:

Delete sections 104.01, 104.02, and 104.04.

104.03 Specifications and Drawings.

(c) As-Built-Plans. Furnish one set of as built plans. The Government will provide one set of contract plans to be used exclusively for recording the as-built details of the project. Use red pencil or red ink to record the information on the as-built plans.

Note all additions or revisions to the location, character, and dimensions of the prescribed work shown on the contract plans. Line out all details shown that are not applicable to the completed work. Check off details shown that were incorporated into the completed work without change.

Retain the plans at the project site and, as work progresses, continually update them to reflect the as-built details. Upon request, make the plans available to the CO to review for compliance with these specifications.

Show the following types of changes on the as-built plans:

(1) Typical section(s)

(a) Revisions in dimensions

(b) Revisions in materials

(2) Plan and profile

• Revisions to the alignment

• Changes in the construction limits

• Revisions in location, type, and grade of road approaches

• Location and type of utilities

• Location, size, and type of underdrains

• Skew of culverts

• Channel changes

• Location of monuments and permanent references

• Elevations for all aerial and underground crossings of utilities

• Location, length, and type of fencing

• Revisions to grades, elevations, and stationing of intersection PIs

• Equations

• Culvert diameter, length, type, and stationing. On culvert extensions, indicate the length of the existing pipe and the length of the extension.

• Location, length, stationing, and type of retaining walls

• Location, length, stationing, and end treatment of guardrail

(3) Bridge

(a) Stationing of bridge ends

(b) Revisions to footing and seal elevations

(c) Pile length, size, type, and tip elevation

(d) Any changes in plan or dimensions including any major changes in reinforcing

(4) Miscellaneous

(a) Revisions to parking areas or turnouts

(b) Final location, type and length of curbs, sidewalks, etc.

Furnish the as-built working plans to the CO before the final inspection. Correct all details found during the final inspection that are not shown on the as-built plans and return to the CO within 5 days.

104.05 Load Restrictions.

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

105.02 Material Sources.

105.02(a) Government Provided Sources.

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

105.02(a) Government Provided Sources.

(a) Government-provided sources. Add the following:

There are no Government-provided sources for this project.

105.05 Use of Material Found in the Work.

Delete 105.05 (a) and (b) and the last sentence of the second paragraph and substitute the following:

Materials produced or processed from Government lands in excess of the quantities required for performance of this contract are the property of the Government. The Government is not obligated to make reimbursement for the cost of producing these materials.

Section 106. Acceptance of Work

Delete subsection 106.07.

Section 107. Legal Relations and Responsibility to the Public

107.05 Responsibility for Damage Claims.

Delete the entire subsection.

107.08 Sanitation, Health, and Safety.

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

107.09 Legal Relationship of the Parties.

Delete the entire subsection:

107.10 Environmental Protection.

Design and locate equipment repair shops, stationary refueling sites, or other facilities to minimize the potential and impacts of hazardous material spills on Government land.

Before beginning any work, submit a Hazardous Spill Plan. List actions to be taken in the event of a spill. Incorporate preventive measures to be taken, such as the location of mobile refueling facilities, storage and handling of hazardous materials, and similar information. Immediately notify the CO of all hazardous material spills. Provide a written narrative report form no later than 24 hours after the initial report and include the following:

• Description of the item spilled (including identity, quantity, manifest number, and other identifying information).

• Whether amount spilled is EPA or state reportable, and if so whether it was reported, and to whom.

• Exact time and location of spill including a description of the area involved.

• Containment procedures.

• Summary of any communications contractor had with news media, Federal, state and local regulatory agencies and officials, or Forest Service officials.

• Description of clean-up procedures employed or to be employed at the site including final disposition and disposal location of spill residue.

When available provide copies of all spill related clean up and closure documentation and correspondence from regulatory agencies.

The Contractor is solely responsible for all spills or leaks that occur during the performance of this contract. Clean up spills or leaks to the satisfaction of the CO and in a manner that complies with Federal, state, and local laws and regulations.

107.11 Protection of Forests, Parks, and Public Lands:

Immediately extinguish without expense to the Government all fires on or in the vicinity of the project which are caused by the Contractor’s employee’s, whether set directly or indirectly as a result of construction operations, with or without direction by the Forest Service. The Contractor may be held liable for all damages and costs of additional labor, subsistence, equipment, supplies, and transportation deemed necessary by the Government resulting from fires set or caused by Contractor’s employees or resulting construction operations.

Contractor’s Responsibility for Controlling Other Emergencies - When requested by the Contracting Officer, allow the Forest Service to temporarily use employees and equipment for emergency control work. Payment will be made at not less than the current area rate established by the Forest Service.

Do not burn camp refuse, brush, slash, or debris such as that resulting from clearing around camps or on rights-of-way, without the written approval of the Contracting Officer. Submit written requests for burning to the Contracting Officer at least 48 hours in advance of intended burning. The Contracting Officer will approve routine camp refuse disposal incineration in the camp development proposal.

Section 109. Measurement and Payment

109.02 Measurement Terms and Definitions.

(b) Contract quantity.

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

109.02 Measurement Terms and Definitions.

Add the following definition:

(p) Thousand Board Feet (Mbf). 1,000 board feet based on nominal widths, thickness, and extreme usable length of each piece of lumber or timber actually incorporated in the job. For glued laminated timber, 1,000 board feet based on actual width, thickness, and length of each piece actually incorporated in the job.

109.03 Weighing Procedures and Devices.

(c) Project weighing system. Add the following::

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

109.03 Weighing Procedures and Devices.

(c) Project weighing system. Add the following::

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.

109 Deletions

Delete the following entire subsections:

109.06 Pricing of Adjustments.

109.07 Eliminated Work.

109.08 Progress Payments.

109.09 Final Payment.

Section 152. Construction Survey and Staking

Description

152.01(c) Material.

Use required stake dimensions and materials. Pre-paint the top 2 inches of all stakes and lath, or mark them with plastic flagging. Use designated colors for paint or flagging. Mark all stakes with a stake pencil that leaves a legible imprint, or with waterproof ink.

Do not use aerosol spray paints.

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

Construction Requirements

152.02 General.

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

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

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

152.03 Survey and Staking Requirements.

(b) Roadway cross-sections.

Replace the first two sentences with the following:

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

c) Slope Stakes & References:

Replace section with the following:

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

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

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

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

Use the designated method to establish the slope stake catchpoint.

• Method I—Computed Method. Use the template information shown in the plans or other

Government-provided data to calculate the actual location of the catchpoint. The slope stake “catchpoint distance” provided may be used as a trial location to initiate slope staking. Recatch slope stakes on any section that does not match the staking report within the tolerances established in Table 152-2.

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

(d) Clearing and grubbing limits.

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

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

(e) Centerline reestablishment.

Replace with the following:

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

152.03 (l) Miscellaneous Survey and Staking.

(11) Cattleguards

(12) Drain Dips

(13) Erosion Control Measures

Replace Table 152-1 with the following two tables:

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

Precision Class

Minimum Position Closure

Angular Accuracy (±)

L-Line Tangent Control Pointsa

Vertical Closureb

A (Bridges)

1/10,000

2 sets, direct/reverse 10 second rejection limit

N/A 0.02 ft or

0.02ft/1000ftc

B

1/5,000

2 sets, direct/reverse 20 second rejection limit

0.1 ft 0.02 ft or

0.02ft/1000ftc

C 1/1,000 1 set, direct/reverse 1 minute rejection limit 0.2 ft 0.5ft/1000ftc

D

1/300

Foresight and backsight;

15 minute rejection limitc

0.4 ft

1.0ft/1000ftc

E

1/100

Foresight and backsight;

30 minute rejection limitc

0.8 ft

1.0ft/1000ftc

a. Accuracy of offset measurement.

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

c. Use greater value.

Table 152-2 Cross section and slope stake tolerances.

Item Tolerances A B C D E

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

(±)2o (±)3o (±)3o (±)5o (±)5o

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

0.5 ft 1.0 ft 2.0 ft 2.0 ft 3.0 ft

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

0.1 ft or 0.4%

0.15 ft or 0.6%

0.2 ft or 1.0%

0.2 ft or 1.0%

0.3 ft or 1.0%

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

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

0.15 ft or 0.6%

0.2 ft or 1.0%

0.2 ft or 1.0%

0.3 ft or 1.0%

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

Section 153. Contractor Quality Control

153.02 Contractor Quality Control Plan.

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

153.04 Records.

Delete all but the first paragraph.

Section 155. Schedules for Construction Contracts

Delete Section 155 in its entirety.

Section 156. Public Traffic

156.04 Accommodating traffic During Work.

Delete the following from the last paragraph:

according to Subsection 106.07(b)

156.05 Maintaining Roadways During Work.

(a) Add the following:

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

(b) Add the following:

Road segments may be closed as shown in Table 156-1. The maximum consecutive days of closure shall be followed by a minimum number of consecutive days open to traffic as shown.

Maintain traffic control devices during closure period(s). Appropriate barricades and signs will be erected and maintained as shown in the traffic control plan or as otherwise designated.

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

Table 156-1 Temporary Road Closures

Road Number

From Terminus

To Terminus

Maximum Consecutive Days of Closure

Minimum Consecutive Days Open

2182 2180 2181 30 -

156.08 Traffic and Safety Supervisor.

Delete this section in its entirety.

Section 157. Soil Erosion Control

157.03 General

(a) Add the following:

Prior to the start of construction, submit a written plan that provides permanent and temporary erosion control measures to minimize erosion and sedimentation during and after construction.

Do not begin work until the necessary controls for that particular phase of work have been implemented.

Section 171 — WEED PREVENTION

Description

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

Material

171.02 Conform to the following Subsection:

Water 725.01

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

Perform all work at a location designated on the plans or other locations approved in writing.

Provide the CO with an opportunity to monitor the washing and inspection.

171.04 Equipment. Use a high pressure washing system.

For work on a national forest, use a washing system that traps all wash water and either stores it for removal from the national forest or recycles the water for continued use. If the equipment recycles the water, provide adequate filters for seed removal. Dispose of the filter material and removed seeds in an approved manner. Do not mix soaps, detergents, or other chemicals with the wash water

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

171.05 Washing. Wash the sides, tops, and undercarriages of all construction equipment.

Remove all seeds, plants, plant fragments dirt, and debris from the construction equipment.

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

Rewash the construction equipment as necessary or as directed.

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

Measurement

171.08 Do not measure weed prevention for payment.

Payment

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

Section 201 Clearing and Grubbing

201.01 Description

Replace with the following

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

201.02 Delete:

Delete Tree wound dressing material reference.

201.03 General.

Delete the last sentence.

201.04 Clearing. (c)

Replace with the following:

(c) In areas outside the excavation, embankment, and slope rounding limits, cut stumps to within 12 inches or one-third of the stump diameter of the ground, whichever is higher, measured on the side adjacent to the highest ground.

Delete subsection (d) and add the following:

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

(f) Remove dead trees over 6 inches in diameter measured at 12 inches above the ground that lean toward the road and are tall enough to reach the roadbed.

201.06 Disposal.

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

Dispose of clearing and grubbing debris according to Subsection 203.05.

Section 203. Removal of Structures and Obstructions

203.01 Work.

Delete and replace with the following:

This work consists of disposing of clearing slash, salvaging, removing, and disposing of buildings, fences, structures, pavements, culverts, utilities, curbs, sidewalks, and other obstructions.

203.02 Material.

Geotextile 714

203.04 Removing Material.

The existing railing, slotted drains, and pavement will be removed.

203.05 Disposing of Material.

(a) Removal from Project is the selected method.

Section 204. Excavation and Embankment

204.05 Conserved Topsoil.

Delete the subsection:

204.06 Roadway Excavation.

Road pioneering, slash disposal, and grubbing of stumps may proceed concurrently with excavation. Conduct excavation and placement operations so material to be treated under Section 201 will not be incorporated in the roadway unless specifically included in the slash treatment method.

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 the embankment. Do not place snow or ice in a manner to cause damage.

204.06 Roadway Excavation

(b) Rock Cuts.

When blasting rock, use blasting methods according to Subsection 205.08

204.09 Preparing Foundation for Embankment Construction.

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

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

Compact the ground surface according to Subsection 204.11.

204.10 Embankment Construction.

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

(a) General.

Delete the third paragraph and add the following:

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

204.11 Compaction.

Delete the first paragraph and replace it with the following:

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

Add the following compaction methods:

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

(e) Layer Placement (Roller Compaction) Method. Place material by end dumping to the minimum depth needed for operation of spreading equipment. Adjust the moisture content of the material to obtain a mass that will not visibly deflect under the load of the hauling and spreading equipment. Operate compaction equipment over the full width of each layer until visible deformation of the layer ceases or, in when a sheepsfoot roller is used, the roller “walks out” of the layer. Make at least three complete passes.

204.13 Sloping, Shaping, and Finishing.

(a) Sloping.

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

204.13 Sloping, Shaping, and Finishing.

Delete section (d) and add the following:

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

Ensure that the subgrade for both surfaced and unsurfaced roads is visibly moist during shaping and dressing. Bring low sections, holes, cracks, or depressions to grade with suitable material.

Maintain proper ditch drainage.

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

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

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

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

204.14 Disposal of Unsuitable or Excess Material.

Delete the text of the first paragraph and substitute the following:

Dispose of unsuitable or excess material at designated sites or legally off of the project.

Table 204-1 Sampling and Testing Requirements.

Add the following note to the table:

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

Add Table 204-2—Construction Tolerances:

Table 204-2 Construction tolerances.

Tolerance Class(a)

A B C D E F G H I J K L M Roadbed width (ft)

+0.5 +0.5 +1.0 +1.0 +1.0 +1.0 +1.5 +1.0 +2.0 +2.0 +2.0 +2.0 +2.0

Subgrade elevation (ft)

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

Centerline alignment (ft)

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

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

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

a. Maximum allowable deviation from construction stakes and drawings.

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

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

Section 209. Structure Excavation and Backfill

209.07 Dewatering.

Delete entire subsection and add the following:

All discharge from dewatering must be filtered by a method approved by the CO to remove sediment from entering any waterway.

Any and all cofferdams must be constructed of a non erodeable material.

Any and all Minnesota DNR permits and/or Army Corp of Engineers permits must also be followed.

209.10 Backfill.

Do not place or backfill pipe that meets any of the following conditions until the excavation and foundation have been approved in writing by the CO:

• Embankment height greater than 6 feet at subgrade centerline.

• Installation in a protected streamcourse.

• Round pipe with a diameter of 48 inches or greater.

• Pipe arches with a span of 50 inches or greater.

• Any box culvert of structure other than pipe culverts.

209.10 Backfill.

Replace any pipe that is distorted by more than 5 percent of nominal dimensions, or that is ruptured or broken.

(b) Pipe culverts.

(1) Pipe culverts with compacted backfill.

On each side of the pipe, place an area of compacted material at least as wide as the diameter of the pipe. Compact the backfill without damaging or displacing the pipe. Complete the backfilling of the trench with suitable material.

209.11 Compacting.

Delete the subsection and add the following:

Compact backfill using designated compaction method A, B, or C:

Method A. Ensure that backfill density exceeds the density of the surrounding embankment.

Method B. Adjust the moisture content of the backfill material to a moisture content suitable for compaction. Compact each layer using appropriate compaction equipment until visual displacement ceases. For compaction under sections 252, 254, 255, 257, 258 and 262 compact with a vibratory steel wheeled roller with a mass of at least 8 tons.

Method C. Determine optimum moisture content and maximum density according to AASHTO T 99 method C. Adjust the moisture content of the backfill material to a moisture content suitable for compaction. Compact material placed in all layers to at least 95 percent of the maximum density. Determine the in place density and moisture content according to AASHTO T 310 or other approved test procedures.

Table 209-1 Sampling and Testing Requirements

(2) Compaction methods (A) and (B) do not require AASHTO T-99 or T-310 test methods for foundation fill.

Section 301. Untreated Aggregate Courses

301 Title Change.

Change the title to: Section 301 Aggregate Courses

Work.

Work includes producing aggregate by pit-run, grid rolling, screening, or crushing methods, or placing Government-furnished aggregate. Work may include additive mineral filler, or binder.

Material.

Bentonite 725.30 Calcium Chloride Flake 725.02 Lime 725.03 Lignon Sulfonate 725.20 Magnesium Chloride Brine or Calcium Chloride Liquid 725.02

General.

Request approval in writing of the roadbed before placing aggregate.

For pit run or grid-rolled material, furnish material smaller than the maximum size. No gradation other than maximum size will be required for pit-run or grid-rolled material. For grid rolling, use all suitable material that can be reduced to maximum size. After processing on the road, remove all oversize material from the road and dispose of it 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 stockpiled according to Section 320. Establish stockpile sites at locations approved. Clear and grub stockpile sites according to Section 201.

Mixing and Spreading.

Delete the first sentence of the first paragraph and add the following:

Ensure that aggregate and any required additives, water, mineral filler, and binder are mixed by the specified method except, if crushed aggregate products are being produced and mineral filler, binder, or additives are required, uniformly blend during crushing. Control additive proportions to 0.5 percent dry weight.

Stationary Plant Method. Mix the aggregate with other required materials in an approved mixer. Add water during the mixing operation in the amount necessary to provide the moisture content for compacting to the specified density. After mixing, transport the aggregate to the jobsite while it contains the proper moisture content, and place it on the roadbed or base course using an aggregate spreader.

Travel Plant Method. After placing the aggregate for each layer with an aggregate spreader or windrow-sizing device, uniformly mix it with other required materials using a traveling mixing plant. During mixing, add water to provide the necessary moisture content for compacting.

Road Mix Method. After placing the aggregate for each layer, mix it with other required materials at the required moisture content until the mixture is uniform throughout. Mix aggregate, water, and all other materials until a uniform distribution is obtained.

Spread the aggregate in a uniform layer, with no segregation of size, and to a loose depth that will provide the required compacted thickness.

When placing aggregate over geotextile, place aggregate in a single lift to the full depth specified.

Route and distribute hauling and leveling equipment over the width and length of each layer.

Compacting.

Delete the first and third paragraphs and add the following:

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

(a) Compaction A. Compact the aggregate by operating spreading and hauling equipment.

(b) Compaction B. 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).

(c) Compaction C. Compact each layer of aggregate to a density of at least 95 per-cent of the maximum density, as determined by AASHTO T 99, method C or D.

(1) Compaction C-1. Compact each layer of aggregate to a density of at least 96 percent of the maximum density, as determined by the Modified Marshall Hammer Compaction Method (available upon request from USDA Forest Service, Regional Materials Engineering Center, P.O.

Box 7669, Missoula, MT 59807).

(d) Compaction D. Compact each layer of aggregate to a density of at least 95 per-cent of the maximum density, as determined by AASHTO T 180, method C or D.

(1) Compaction D-1. Compact each layer of aggregate to a density of at least 100 percent of the maximum density as determined by the Modified Marshall Hammer Compaction Method (available upon request from USDA Forest Service, Regional Materials Engineering Center, P.O.

Box 7669, Missoula, MT 59807).

(e) Compaction E. Operate rollers and compact as specified in Subsection 204.11(a).

For all compaction methods, blade the surface of each layer during the compaction operations to remove irregularities and produce a smooth, even surface. When a density requirement is specified, determine the in place density and moisture content according to AASHTO T 310 or other approved test procedures.

Surface Tolerance.

Thickness and Width requirements:

The maximum variation from the compacted specified thickness is ½ inch. The compacted thickness is not consistently above or below the specified thickness and the average thickness of 4 random measurements for any ½ mile of road segment is within + ¼ inch of the specified thickness.

The maximum variation from the specified width will not exceed +12 inches at any point. The compacted width is not consistently above the specified width and the average of any four random measurements along any ½ mile of road segment is within +4 inches of the specified width.

301.08(b) Plasticity Index.

Add the following to the first sentence: “and under 703.05(c)(1)”.

301.09 Measurement.

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

Table 301-1: Add the following:

Table 301-1: Add the following:

Table 301-1—Acceptance Sampling and Testing Requirements.

Material or Product

Type of Acceptance (Subsection)

Characteristic Category Test Methods Specifications

Sampling Frequency

Point of Sampling

Split Sample

Reporting Time

Subbase & Base Measured and Plastic Limit - AASHTO T 90 1 per each From the Yes 4 Hours Courses L, M, N, tested 1,000 T windrow or

O, P, Q, R conformance roadbed after (Subsection processing 106.04)

Table 301-1—Acceptance Sampling and Testing Requirements.

Material or

Product Type of

Acceptance (Subsection)

Characteristic Category Test Methods Specifications

Sampling Frequency

Point of Sampling

Split Sample

Reporting Time

Aggregate Width Measured and tested conformance (Subsection

106.04)

Width - - 4 per each

0.5 mi

Roadbed after processing

- 4 Hours

Aggregate Thickness

Measured and tested conformance (Subsection

106.04)

Thickness - - 4 per each

0.5 mi

Roadbed after processing

- 4 Hours

Additive Measured and tested conformance (Subsection

106.04)

Amount of Additive

- 1 per each 1,000 T

From the windrow or roadbed after processing

No 4 Hours

Table 301-1 Field Density Requirements.

Table 301-1: Delete laboratory and field density requirements for base, subbase, and surfacing and replace with the following:

Type of Acceptance (Subsection)

Characteristic Category Test Methods Specifications

Sampling Frequency

Point of Sampling

Split Sample

Reporting Time

Base and Subbase

Measured and tested conformance (Subsection 106.04)

Moisture Density ---

Method C --- AASHTO T 99 1 per type and source of material

Source of material

Yes Before using in work

Method C-1 --- R-1 Marshall “ “ “ “ Method D --- AASHTO T 180 “ “ “ “ Method D-1 --- R-1 Marshall “ “ “ “

Compaction ---

Method C, C-1, D, D-1

--- AASHTO T 310

or other approved procedures

1 per 500 t In-place --- Before placing the next layer Surfacing Measured and tested conformance (Subsection 106.04)

Moisture Density

Method C-1 --- R-1 Marshall “ “ “ Before using in work

Method D --- AASHTO T 180 “ “ “ “ Method D-1 --- R-1 Marshall “ “ “ “

Compaction

Method C, C-1, D, D-1

--- AASHTO T 310

or other approved procedures

1 per 500 t In-place --- Before placing the next layer

Section 401. Superpave Hot Asphalt Concrete Pavement

401.01

Superpave hot asphalt concrete pavement nominal maximum size aggregate is designated as shown in Tables 401-1 and 703-12. Equivalent single axle loads (ESAL) shall meet/exceed

ESAL 0.3.

Table 403-1—Acceptance Sampling and Testing Requirements.

Type of Acceptance (Subsection)

Characteristic Category Test Methods Specifications

Sampling Frequency

Point of Sampling

Split Sample

Reporting Time

Pavement Width Measured and tested conformance (Subsection

106.04)

Width - - 4 per each

0.5 mile

Pavement after compaction

- 4 Hours

Pavement Thickness

Measured and tested conformance (Subsection

106.04)

Thickness - - 4 per each

0.5 mile

Pavement after compaction

- 4 Hours

Section 415. Paving Geotextiles

415.01.

Add the following:

The membrane system shall be one of the following systems or an approved equivalent approved by the Engineer:

Bituthene 5000 – As manufactured by W.R. Grace and Co., 62 Whitmore Avenue, Cambridge, MA 02140.

Protrotac – Self-adhesive non-woven fabric manufactured by Phillips Fiber Co., Greensville, SC.

M400A – Manufactured by Protecto Wrap Co, Denver CO.

The membrane system shall be installed according to the manufacturer’s specifications.

Immediately prior to placing the membrane, the base course must be cleaned to remove all loose dirt and debris. The asphalt base course surface should be sufficiently clean, cool, and dry for the membrane to adhere. The membrane shall be placed longitudinally in shingle fashion and placed around the scuppers as indicated on the plans. The edges of the membrane shall be overlapped a minimum of 6 in. and the ends overlapped a minimum of 6 in. End joints shall be staggered a minimum of 36 inches.

The membrane shall be rolled into place using a linoleum-type roller, taking special care to eliminate air pockets and wrinkles higher than 1”.

The membrane shall be tested for adhesion.

No vehicle other than the bituminous overlay equipment will be permitted on the membrane prior to the surface asphalt. Overlay equipment wheels and tires shall be clean and free from stones or other material that could penetrate the membrane.

Pavement shall be laid in a manner to permit water to drain to the scupper area of the deck without entrapment.

The laydown temperature of the surface bituminous overlay shall be in accordance with the manufacturer’s recommendations.

Section 625. Turf Establishment

625.03 General.

Delete the first subsection and add the following:

Apply turf establishment to finished slopes, other disturbed areas, and ditches between May 1 and September 15. Do not seed during windy weather or when the ground is excessively wet, frozen, snow covered, extremely dry, cloddy, hard pan, or is otherwise untillable.

625.04 Preparing Seedbed.

Delete “2 inches in diameter and larger,” from the second sentence.

625.05 Watering.

Delete the subsection and add the following:

Moisten seeding areas before seeding and ensure proper moisture until 70% vegetation growth established.

625.06 Fertilizing.

Add the following to subsection (a):

Chemical analysis shall be as listed below and shall be applied at 35 pounds per acre:

Nitrogen, not less than 20%

Phosphoric acid, not less than 10%

Potash, not less than 20%

625.07 Seeding. (a) Dry method.

Add the following to subsection (a):

The following seed mixture shall be applied on this project:

Type Name Rate

MnDOT Category & Mix # 36-311 Woodland Edge Northeast 33.5 lb/acre

Section 635. Temporary Traffic Control

635.03 General.

Install temporary traffic control signs to temporary posts or approved temporary sign mounts.

Section 703. Aggregate

703.05 Subbase, Base, & Surface Course Aggregate.

Replace (1) under 703.05(a) with the following:

(1) Los Angeles abrasion, AASHTO T 96 40% max.

Add the following to 703.05(b):

(3) Plastic limit, AASHTO T 90 Nonplastic

Replace (1) and add (3) under 703.05(c) with the following:

(1) Gradation Table 703-3

(3) Plasticity index, AASHTO T 90:

a) If the percent passing the No. 200 sieve is less than 12% 2 to 9

b) If the percent passing the No. 200 sieve is greater than 12% less than 2

Correct Table 703-2 as follows:

Grading Designation E (Base), Sieve No. 4. Change range from 436-74(6) to 36-74 (6)

Replace Table 703-3 with the following:

Table 703-3. Gradation TV ranges for surface courses.

% by Mass Passing Designated Sieve (AASHTO T 27 and T 11)

Grading Designation Sieve Size F G H S T U 1 ½ in. 100 100 1 in. 97-100 100 72-92 (6) 100 ¾ in. 76-89 (6) 97-100 97-100 - - 100 ½ in. - - - - 71-91 (6) - 3/8 in. 56-68 (6) 70-80 (6) 80-92 (6) 51-71 (6) - 71-90 (6) No. 4 43-53 (7) 51-63 (7) 58-70 (7) 36-53 (7) 43-60 (7) 50-68 (7) No. 8 - - - 26-40 (6) 30-46 (6) 34-51 (6) No. 16 23-32 (6) 28-39 (6) 28-40 (6) - - - No. 30 15-23 (5) 19-27 (5) 16-26 (5) - - - No. 40 - - - 14-25 (5) 16-28 (5) 19-30 (5) No. 200 10-16 (4) 10-16 (4) 9 14 (4) 8-15 (4) 8-15 (4) 8-15 (4)

Note: Allowable deviations (±) from TV are shown in parentheses. If the plasticity index (PI) is greater than 0, the TV range for the No. 200 sieve size is 6-12 (4).

703.10(e) Flakiness Index.

Delete and replace with the following:

Flakiness Index, FLH T 508 30% max.

703.10(i) Adherent Coating.

Adherent coating on the aggregate, FLH T 512 0.5% max.

Section 713. Roadside Improvement Material

713.05 Mulch.

Assure that mulch used on the project is certified noxious weed free by the appropriate authority in the jurisdiction of use.

713.17 (J).

Manufacturer: Ero-Guard EG-2X (NN) or an approved equal.

Section 714. Geotextile and Geocomposite Drain Mat.

Tables 714-1 and 714-4.

Add the following note to both tables:

(4) Woven slit film will not be allowed.

714.03 Geogrids.

Furnish geogrids consisting of polymeric materials such as polypropylene, polyethylene, or polyester formed into a stable network of bars or straps fixed at their junctions such that the bars retain their relative position to each other.

Elevate and protect rolls with a waterproof cover if stored outdoors.

(a) Physical requirements. Furnish geogrid treated to resist ultraviolet degradation, and conforming to the physical strength requirements shown in table 714-7 according to ASTM D 4595 for the specified geogrid category. Strength values shown in table 714-7 represent minimum average roll values and are for the direction of primary reinforcement. Ensure that the aperture size for all geogrids is between ¾ to 3 inches.

(b) Evaluation procedures. Geogrids will be evaluated under Subsection 106.03. Furnish a certification and a sample of the geogrid.

Table 714-7—Physical strength requirements for geogrids.

Category Minimum Ultimate Strength at Breakage (lbs/ft) 1 890 2 1985 3 2875 4 4110 5 5475 6 8215

Section 718. Traffic Signing and Marking Material

718.02 Reserved.

Replace this section with the following:

718.02 Protective Overlay Film and Edge Film.

Protective overlay film will be a high performance flouropolymer film such as 3M Scotchlite Premium Protective Overlay Film Series 1160 or approved equal.

Edge film will be a pressure-sensitive, premium-quality, clear, ultraviolet-resistant, 3 inches wide vinyl film.

718.22 Object Markers

The type 2 and type 3 object markers will be made to the following specifications.

Type 2 Object Markers

The Forest Service has approved standards for a modified Type 2 object marker, which has the same applications as the standard Type 2 object marker.

Type 3 Object Markers