1.Special_Project_Specs.pdf
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- M5 Washout Repair Federal contract opportunity
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- AG-9AC7-S-16-0080
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Special Project Specs
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| 3._Fire_Plan_080212.pdf | ||
| 4.CA9 _mod_5_Dated_030416.pdf |
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M5 WASHOUT REPAIR
SPECIAL PROJECT SPECIFICATIONS
101 - Terms, Format, and Definitions 101.00_nat_us_07_25_2005
101.01_nat_us_04_04_2007
101.01 Meaning of Terms
Delete all references to the TAR (Transportation Acquisition Regulations) in the specifications.
101.03_nat_us_06_16_2006
101.03 Abbreviations.
Add the following to (a) Acronyms:
AFPA
MSHA
NIST
NESC
WCLIB
American Forest and Paper Association Mine Safety and Health Administration National Institute of Standards and Technology National Electrical Safety Code West Coast Lumber Inspection Bureau
Add the following to (b) SI symbols:
mp Milepost ppm Part Per Million
101.04_nat_us_03_29_2007
101.04 Definitions.
Delete the following definitions and substitute the following:
Bid Schedule--The Schedule of Items.
Bridge--No definition.
Contractor--The individual or legal entity contracting with the Government for performance of prescribed work. In a timber sale contract, the contractor is the “purchaser”.
Culvert--No definition.
Right-of-Way--A general term denoting (1) the privilege to pass over land in some particular line (including easement, lease, permit, or license to occupy, use, or traverse public or private lands), or (2) Real property necessary for the project, including roadway, buffer areas, access, and drainage areas.
Add the following:
http://www.nist.gov/
M5 Washout Repair, AG-9AC7-S-16-0080 2 | P a g e
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, 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:
M5 Washout Repair, AG-9AC7-S-16-0080 3 | P a g e
Figure 101-1—Illustration of road structure terms.
102 - Bid, Award, and Execution of Contract 102.00_nat_us_02_16_2005
M5 Washout Repair, AG-9AC7-S-16-0080 4 | P a g e
102 Bid, Award, and Execution of Contract Delete Section 102 in its entirety.
103 - Scope of Work 103.00_nat_us_02_16_2005
Deletions
Delete all but subsection 103.01 Intent of Contract.
104 - Control of Work 104.00_nat_us_06_16_2006
Deletions
Delete Sections 104.01, 104.02, and 104.04.
104.06_nat_us_02_17_2005
Add the following subsection:
104.06 Use of Roads by Contractor
The Contractor is authorized to use roads under the jurisdiction of the Forest Service for all activities necessary to complete this contract, subject to the limitations and authorizations designated in the Road Order(s) or described in the contract, when such use will not damage the roads or national forest resources, and when traffic can be accommodated safely.
105 - Control of Material 105.02_nat_us_01_18_2007
105.02 Material Sources.
105.02(a) Government-provided sources.
Add the following:
Comply with the requirements of 30 CFR 56, subparts B and H. Use all suitable material for aggregate regardless of size unless otherwise designated. When required, re-establish vegetation in disturbed areas according to section 625.
105.05_nat_us_05_12_2004
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:
M5 Washout Repair, AG-9AC7-S-16-0080 5 | P a g e
Materials produced or processed from Government lands in excess of the quantities required for performance of this contract are the property of the Government. The Government is not obligated to make reimbursement for the cost of producing these materials.
106 - Acceptance of Work 106.07_nat_us_05_11_2004
106.07 Delete
Delete subsection 106.07.
107 - Legal Relations and Responsibility to the Public 107.05_nat_us_05_11_2004
107.05 Responsibility for Damage Claims.
Delete the entire subsection.
107.06_nat_us_06_16_2006
107.06 Contractor’s Responsibility for Work.
Delete the following from the first paragraph.
“except as provided in Subsection 106.07”.
107.09_nat_us_06_16_2006
107.09 Legal Relationship of the Parties.
Delete the entire subsection.
107.10_nat_us_06_16_2006
107.10 Environmental Protection.
Add the following:
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.
M5 Washout Repair, AG-9AC7-S-16-0080 6 | P a g e
• Exact time and location of spill including a description of the area involved.
• Containment procedures.
• Summary of any communications the 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.
107.10_05_us_05_04_2007
107.02 Protection and Restoration of Property and Landscape
Add the following:
Meet the requirements chapters 10, 11, and 12.2 in their entirety of “Water Quality Management for National Forest System Lands in California Best Management Practices” dated September
109 - Measurement and Payment 109.00_nat_us_02_17_2005
109 Deletions
Delete the following entire subsections:
109.06 Pricing of Adjustments.
109.07 Eliminated Work.
109.08 Progress Payments.
109.09 Final Payment.
109.02_nat_us_06_16_2006
109.02 Measurement Terms and Definitions.
(b) Contract quantity.
Add the following:
Contract quantities will be adjusted only when there are errors in the original design of 15% or more.
Change the following:
“(b) Cubic yard” to “(c) Cubic yard”.
M5 Washout Repair, AG-9AC7-S-16-0080 7 | P a g e
Add the following definition:
151 - Mobilization 151.03_0116_us_03_30_2005
151.03
Add the following to the first paragraph:
Include all costs associated with the cleaning of equipment in the unit bid price for Mobilization:
Add the following to the beginning of paragraph (a).
If applicable, 152 - Construction Survey and Staking 152.00_nat_us_08_05_2005
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.
Delete the first two sentences.
Add the following:
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.
M5 Washout Repair, AG-9AC7-S-16-0080 8 | P a g e
(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.
Add the following:
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.
M5 Washout Repair, AG-9AC7-S-16-0080 9 | P a g e
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.
(g) Culverts.
Replace subsection with the following:
Set culvert reference stakes at all culvert locations. Set a culvert reference stake on the centerline of the culvert 10 feet from each end or beyond the clearing limit, whichever is greater. Record the following on culvert reference stakes:
(1) Diameter, actual field measured length, and type of culvert.
(2) The vertical and horizontal distance from the reference stake to the invert at the ends of the culvert.
(3) Station of actual point where culvert intersects centerline.
When required, stake headwall for culverts by setting a hub with a guard stake on each side of the culvert on line with the face of the headwall. Perform this work after clearing is completed.
152.03 (l) Miscellaneous Survey and Staking.
Add the following:
(11) Cattleguards,
(12) Drain Dips
(13) Erosion Control Measures
M5 Washout Repair, AG-9AC7-S-16-0080 10 | P a g e
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.
M5 Washout Repair, AG-9AC7-S-16-0080 11 | P a g e
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
156 - Public Traffic 156.00_nat_us_04_17_2007
Delete Section 156 in its entirety and replace with the following:
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:
Construction sign panels 633 Retro-reflective sheeting 718.01 Temporary concrete barrier 618 Temporary plastic fence 710.11 Temporary traffic control devices 718.22
156.03 General. 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
M5 Washout Repair, AG-9AC7-S-16-0080 12 | P a g e accommodate traffic. Delays may not exceed ___ minutes at any one time followed by an open period of no less than ___ minutes.
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. 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. 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.
M5 Washout Repair, AG-9AC7-S-16-0080 13 | P a g e
Table 156-1 Temporary Road Closures
Road
Number From
Terminus To
Terminus Maximum
Consecutive Days of Closure
Minimum Consecutive Days Open
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. Compensation is made as an indirect payment.
203 - Removal of Structures and Obstructions 203.01_nat_us_02_25_2005
203.01 Description.
Delete and replace with the following:
This work consists of disposing of construction slash and debris, salvaging, removing, and disposing of buildings, fences, structures, pavements, culverts, utilities, curbs, sidewalks, and other obstructions.
203.04_nat_us_02_18_2005
203.04 Removing Material.
Replace the fourth and fifth paragraphs with the following:
Where part of an existing culvert is removed, remove the entire culvert upstream from the removal. The remaining downstream culvert may be left in place if no portion of the culvert is within 12 inches of the subgrade, embankment slope, or new culvert or structure; and the culvert ends are sealed with concrete.
Remove structures and obstructions in the roadbed to 12 inches below subgrade elevation.
Remove structures and obstructions outside the roadbed to 12 inches below finished ground or to the natural stream bottom.
203.05_nat_us_02_18_2005
203.05 Disposing of Material.
M5 Washout Repair, AG-9AC7-S-16-0080 14 | P a g e
(e) Windrowing Construction Slash (Slash Filter Windrow). Stockpile small tree tops, limbs and brush not exceeding 4 inches in diameter at each rolling dip location. Stockpile enough material to construct a windrow structure approximately 10-12 feet long, 5-6 feet wide and 2-3 feet high. Use a hydraulic excavator or method approved by the CO to construct the slash filter.
Construct slash filter windrows only in areas flagged on the ground. Do not place material in stream channels or location to interfere with the functioning of the drainage structures. The windrow should be located just downslope from the dip outlet and shaped like a parenthesis perpendicular to the slope to prevent discharge around structure. After placing slash, use the bucket to vigorously tamp and embed slash into soil profile to make a sediment impervious windrow. Use construction equipment to matt down all material in a windrow to form a compact and uniform pile.
(f) Scattering. Scatter construction slash outside the clearing limits 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.
(g) Chipping or Grinding. Use an approved chipping machine to grind slash and stumps greater than 3 inches in diameter and longer than 3 feet. Deposit chips or ground woody material 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 Firewood Material. Remove brush from decks. Limb and deck logs that do not meet Utilization Standards according to Subsection 201.04 as directed by the CO. Cut logs to lengths less than 30 feet. Ensure that logs stacks are stable and 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. Cut unmerchantable logs into lengths of less than 20 feet.
(l) Placing Slash on Embankment Slopes. Place construction slash on completed embankment slopes to reduce soil erosion. Place construction slash as flat as practicable on the completed slope. Do not place slash closer than 2 feet below subgrade. Priority for use of available slash is for: (1) through fills; (2) insides of curves; and (3) ditch relief outlets.
(m) Hydrological Sensitive Placement. Where required use this method in combination with other designated methods to dispose of material to reduce erosion and to aid in re-vegetation:
1. Place windrow segments on contours, wrap in type I geotextile.
2. Place logs as log erosion barriers on contours. Place logs so that 80% of their length is on the ground surface.
3. Scatter slash on bare or disturbed areas within or outside the clearing limits as directed.
M5 Washout Repair, AG-9AC7-S-16-0080 15 | P a g e
4. Scatter chips or ground woody material on bare or disturbed areas within or outside the clearing limits as directed.
Place stumps in swales or on sites to form planting pockets. Place windrow segments on contours, wrap in type I geotextile.
203.08_nat_us_02_24_2005
203.08 Payment
Add the following:
Disposal of construction slash will be compensated under the designated pay item in Section 201.
204 - Excavation and Embankment 204.05_nat_us_02_18_2005
204.05 Conserved Topsoil
Delete the entire paragraph.
204.06_nat_us_03_02_2005
204.06 Roadway Excavation
(a) General. Excavate and remove material on road failures until stable ground is found or to a max depth of 4’ for shallow slumps or slides.
Add the following:
Retrieve material deposited outside of the clearing limits as directed by the CO. Place unsuitable material in designated areas.
204.09_nat_us_03_02_2005
204.09 Preparing Foundation for Embankment Construction.
Delete subsection (a) and replace it with the following:
(a) Embankment less than 4 feet high over natural ground. When designated, remove topsoil and break up the ground surface to a minimum depth of 6 inches by plowing or scarifying.
Compact the ground surface according to Subsection 204.11.
204.10_nat_us_03_02_2005
204.10 Embankment Construction.
Add the following:
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_nat_us_04_11_2005
204.11 Compaction.
Delete the first paragraph and replace it with the following:
M5 Washout Repair, AG-9AC7-S-16-0080 16 | P a g e
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_nat_us_03_02_2005
204.13 Sloping, Shaping, and Finishing.
(a) Sloping.
Add the following:
Slope rounding is not required on tolerance class D though M roads.
204.13_nat_us_03_02_2005
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. Scarify to 6 inches below the bottom of low sections, holes, cracks, or depressions and bring back 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.
M5 Washout Repair, AG-9AC7-S-16-0080 17 | P a g e
(3) Method C. For roads designated as Construction Tolerance Class K, L, or M, finish the roadbed by spreading the excavation. Eliminate rock berms.
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.
204.14_nat_us_03_02_2005
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.
204.15_nat_us_02_07_2007
204.15 Acceptance
Table 204-1 Sampling and Testing Requirements.
Add the following note to the table:
(2) When compaction methods (d) or (e) are used AASHTO M 145, T 99, T 180, and T 310 are not required for earth embankment test methods.
M5 Washout Repair, AG-9AC7-S-16-0080 18 | P a g e
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:
Material or Product
Type of Acceptance (Subsection)
Characteristic Category Test Methods Specifications
Sampling Frequency
Point of Sampling
Split Sample
Reporting Time
NC ABC Measured and tested conformance (Subsection 106.04)
Moisture Density
Method C-1 --- R-1 Marshall “ “ “ Before using in work
Method D --- AASHTO T
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
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
NC ABC Measured and tested conformance (Subsection 106.04)
Plastic Limit - AASHTO T
1 per each 1,000 T
From the windrow or roadbed after processing
Yes 4 Hours
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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
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BMP 2.11 - Equipment Refueling and Servicing
Objective: Prevent fuels, lubricants, cleaners, and other harmful materials from discharging into nearby surface waters or infiltrating through soils to contaminate groundwater resources.
Explanation: Many activities require the use and maintenance of petroleum-powered equipment in the field: vegetation harvest and regeneration; road, trail, and facility construction, reconstruction, and maintenance. The activities often employ equipment that uses or contains gasoline, diesel, oil, grease, hydraulic fluids, antifreeze, coolants, cleaning agents, and/or pesticides. These petroleum and chemical products may pose a risk to surface water and groundwater during refueling and servicing the equipment.
Sale administrators, contracting officer’s representatives, engineering representatives, inspectors, permit administrators, and force account crew supervisors are responsible for enforcing requirements of equipment fueling and servicing activities. They can manage the risk from fuel and chemical spills during equipment refueling or servicing by using the appropriate techniques from the following list adapted as needed to local site conditions.
Implementation:
1. Plan for appropriate equipment refueling and servicing sites during project planning and design.
2. Allow temporary refueling and servicing only at approved locations, which are well away from water or riparian resources.
3. Develop or use existing fuel and chemical management plans (for example, spill prevention control and countermeasures (SPCC), spill response plan, emergency response plan) when developing the management prescription for refueling and servicing sites.
4. Locate, design, construct, and maintain petroleum and chemical delivery and storage facilities consistent with local, State and Federal regulations.
5. Install contour berms and trenches around vehicle service and refueling areas, chemical storage and use areas, and waste dumps to fully contain spills.
6. Use liners as needed to prevent seepage to groundwater.
7. Provide training for all personnel handling fuels and chemicals in their proper use, handling, storage, and disposal.
8. Avoid spilling fuels, lubricants, cleaners, and other chemicals during handling and transporting.
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12.21 Exhibit 11 -- Continued
BMP 2.11 - Equipment Refueling and Servicing
9. Prohibit excess chemicals or wastes from being stored or accumulated in the project area.
10. Remove service residues, waste oil, and other materials from NFS land and properly dispose them following completion of the project.
11. Clean up and dispose of spilled materials according to specified requirements in the appropriate guiding document.
12. Report spills and initiate appropriate clean-up action in accordance with applicable State and Federal laws, rules and regulations. The forest hazardous materials coordinator’s name and phone number shall be available to Forest Service personnel who administer or manage activities utilizing petroleum-powered equipment.
13. Remove contaminated soil and other material from NFS lands and dispose of this material in a manner according to controlling regulations.
14. Prepare a certified SPCC Plan for each facility, including mobile and portable facilities that have oil storage capacity of at least 1,320 gallons in containers 55 gallons or greater.
a. Install or construct the containment features or countermeasures called for in the SPCC Plan to ensure that spilled oil does not reach groundwater or surface water.
b. Ensure that each SPCC Plan includes a spill contingency plan at each facility that is unable to provide secondary spill containment.
c. Ensure that clean-up of spills and leaking tanks complies with Federal, State and local regulations and requirements.
15. Prepare a contingency plan when quantities of petroleum products are capable of violating Basin Plan water-quality objectives.
16. Section H clauses for Public Works Construction include a standard clause for Spill Plan when project or activity includes oil or oil products storage exceeding 1,320 gallons, or a single container exceeding 660 gallons. Section H clauses also require designation of contractor’s key personnel, including authorized on-site representative and phone number(s).
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BMP 2.3 - Road Construction and Reconstruction
Objective: Minimize erosion and sediment delivery from roads during road construction or reconstruction, and their related activities.
Explanation: During road construction and reconstruction activities, vegetation and ground cover are removed, often exposing both the surface and subsurface soil to erosion. Temporary and long-term erosion-control measures are necessary to reduce erosion and maintain overall slope stability. These erosion-control measures may include vegetative and structural techniques to ensure the area’s long-term stability. The risk from road construction and reconstruction activities can be managed by using the appropriate techniques from the following list adapted as needed to local site conditions.
Implementation: Enforcement of the techniques is the responsibility of the inspector and contracting officer’s representative for public works contracts, the inspector and engineering representative for timber sale roads, and the permit administrator for roads constructed or reconstructed under administrative operations (that is, Road Use Permit, Special Use Permit, and so forth). If roads are constructed or reconstructed by force account crews, the project manager and foreman are responsible for adherence to project drawings, specifications, and erosion control plan.
1. Implement the approved erosion control plan that covers all disturbed areas, including borrow areas and stockpiles used during road management activities (see BMP 2.13- Erosion Control Plan). Include the forest’s wet weather operations standards (WWOS).
2. Maintain erosion-control measures to function effectively throughout the project area during road construction and reconstruction, and in accordance with the approved erosion control plan (see BMP 2.13- Erosion Control Plan).
3. Set the minimum construction limits needed for the project and confine disturbance to that area.
4. Locate and designate waste areas before operations begin.
a. Deposit and stabilize excess and unsuitable materials only is designated sites.
b. Do not place such materials on slopes with a high risk of mass failure, in areas subject to overland flow (for example, convergent areas subject to saturation overland flow), or within the SMZ.
c. Provide adequate surface drainage and erosion protection at disposal sites.
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12.21 Exhibit 03 -- Continued
BMP 2.3 - Road Construction and Reconstruction
d. Comply with BMP 2.5 - Water Source Development and Utilization.
5. Comply with BMP 2.11 - Equipment Refueling and Servicing.
6. Do not permit sidecasting within the SMZ. Prevent excavated materials from entering water ways or SMZs.
7. Develop and follow blasting plans to move materials when necessary.
a. To the extent possible, restrict blasting in sensitive areas and those sites with high landslide potential.
b. Restrict blasting after intense storms when soils are saturated.
c. Prevent damage from fly rock and overshot by not overloading shots, installing blasting mats, or avoiding setting charges through variable rock strata.
8. Schedule operations when rain, runoff, wet soils, snowmelt or frost melt are less likely. Follow seasonal restrictions of the forest’s WWOS, and notification protocols, as outlined in an approved erosion control plan.
a. Optimally, schedule construction during dry periods, while still adhering to other seasonal restrictions (wildlife breeding, spawning, fire activity levels, and so forth), consistent with local ordinances.
b. Stabilize project area during normal operating season when the National Weather Service predicts a 30 percent or greater chance of precipitation, such as localized thunderstorm or approaching frontal system.
c. Keep erosion-control measures sufficiently effective during ground disturbance to allow rapid closure when weather conditions deteriorate.
d. Complete all necessary stabilization measures prior to predicted precipitation that could result in surface runoff.
9. To the extent possible, construct new stream crossings when streams are dry or when stream flow is at its lowest. Install sediment controls.
10. Comply with BMP 2.8- Stream Crossings.
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BMP 2.3 - Road Construction and Reconstruction
11. Limit operation of equipment when ground conditions could result in excessive rutting, soil compaction (except on the road prism or other surface to be compacted), or runoff of sediments directly to streams.
12. On slopes greater than 40 percent, the organic layer of the soil shall be removed prior to fill placement, according to project specifications.
13. Waste organic material, such as uprooted stumps, cull logs, accumulations of limbs and branches, and unmerchantable trees, shall not be buried in logging road or landing fills. Dispose of waste organic material according to project specifications, in locations designated for waste disposal. Assure compliance with the project erosion control plan.
14. Construct fills and keyways according to design drawings and specifications, not exceeding specified lift thickness and moisture content. Ensure uncompacted materials are prevented from leaving disturbance limits.
15. Stabilize all disturbed areas with mulch, erosion fabric, vegetation, rock, large organic materials, engineered structures, or other stabilization measures according to the Erosion Control Plan, and project specifications and drawings for permanent controls (that is, crib walls, gabions, riprap placement, and so forth).
16. Scatter construction-generated slash on disturbed areas to help control erosion.
a. Ensure ground contact between slash and disturbed slopes.
b. Windrow slash at the base of fill slopes to reduce sedimentation.
c. Ensure that windrows are placed along the contour and that there is ground contact between slash and disturbed slope.
17. Remove large limbs and cull logs to designated sites outside the SMZ or relocate within the SMZ to meet aquatic resource management objectives.
18. Monitor contractor’s plans and operations to assure contractor does not open up more ground than can be substantially completed before expected winter shutdowns, unless erosion-control measures are implemented.
19. If snow/rainy season operations are proposed, specifications for snow/ice depth or soil operability conditions must be described. Include these specifications in the erosion control plan (see BMP 2.13- Erosion Control Plans).
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BMP 2.3 - Road Construction and Reconstruction
20. Install erosion-control measures on incomplete roads prior to precipitation events or the start of the winter period (November 16 through March 31) and in accordance with the approved erosion control plan:
a. Remove ineffective temporary culverts, culvert plugs, diversion dams, or elevated stream crossings, leaving a channel at least as wide as before construction and as close to the original grade as possible.
b. Install temporary culverts, side drains, cross drains, diversion ditches, energy dissipaters, dips, sediment basins, berms, dikes, debris racks, pipe risers, or other facilities needed to control erosion.
c. Remove debris, obstructions, and spoil material from channels, floodplains, and riparian areas.
d. Do not leave project areas for the winter with remedial measures incomplete.
e. Plant vegetation, mulch, and amendments, or provide other protective cover for exposed soil surfaces.
21. When pioneer roads are necessary:
a. Confine construction of pioneer roads to the planned roadway limits unless otherwise specified or approved.
b. Locate and construct pioneering roads to prevent undercutting of the designated final cut slope.
c. Avoid deposition of materials outside the designated roadway limits.
d. Dewater live streams where crossed by pioneer roads with appropriate diversion devices.
e. Accommodate drainage with adequate temporary crossings.
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12.21 Exhibit 04
BMP 2.4 - Road Maintenance and Operations
Objective: To ensure water-quality protection by providing adequate and appropriate maintenance and by controlling road use and operations.
Explanation: Appropriate maintenance and control of road use and operations can protect water quality, aquatic and riparian resources, and capital investments. Maintenance needs and operational controls are informed by periodic inventory and assessment that determine road condition and the potential impacts the road has on water quality.
Properly designed and maintained road surfaces and drainage systems can reduce adverse effects to water resources by facilitating natural hydrologic function. Roads and drainage systems normally deteriorate because of traffic, weather, and effects of maintenance.
In addition, roads occasionally become saturated by new groundwater springs and seeps after a wildfire or unusually wet periods.
Many such conditions can be corrected by timely maintenance. However, while routine maintenance may be needed to ensure the road performs as designed, it can also be a source of soil disturbance and therefore, sediment production. In particular, the grading of inside ditches and road surfaces can significantly increase sediment production rates. Less aggressive maintenance may be desired to minimize disturbance of stable sites.
Road management objectives include the level and type of maintenance that a road is expected to receive. Assigned road maintenance levels vary from 1 to 5, and are directly linked to the operational objectives for the road. Maintenance Level 1 is assigned to roads closed to all motorized vehicles for a year or more; they should be left in a stable condition, and by definition, require less maintenance. Maintenance Levels 4 and 5 are assigned to roads that are typically double-lane, aggregate-surfaced or paved, and passenger vehicle traffic is “encouraged.” They are well maintained to provide a moderate to high degree of user comfort and convenience.
Operational objectives and activities are also defined by the road management objectives, and depend upon the amount of maintenance a road is expected to receive. Road operations also include permit, contract, and agreement administration, control of seasonal use, sustaining roads in closed status and revising maintenance levels and seasonal closures, as needed. Road closures and restrictions are necessary because many forest roads are designed for dry-season use. Most local roads are not surfaced, while others have some surfacing or spot stabilization. Roads without stabilized surfaces or adequate base can be damaged by use during wet periods or by loads heavier than the road was designed to convey.
Road maintenance plans are implemented through contract, cooperators, force account, and active timber sale or other authorized activities. Contract, timber sale, and other authorized or permitted operations are bound by specifications and drawings. BMPs are incorporated as specifications, contract or sale clauses, operating plan requirements, permit clauses, and are often
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12.21 Exhibit 04 -- Continued
shown in the drawings. The contracting officer’s representative is responsible for assuring compliance by contractors; engineering representative, TSA, or FSR assures compliance by cooperator, purchaser or permitted operator. Project manager and crew supervisor assures compliance for force account work. Optimally, the forest hydrologist works with the forest quality assurance personnel to determine if approved maintenance tasks are completed with minimal resource impacts. Adjustments to future maintenance plans and methods are considered when previous methods do not provide the needed protection to water quality.
Risk from road maintenance activities can be managed by using the appropriate techniques from the following list adapted as needed to local site conditions.
Implementation
Inspection:
1. Periodically inspect system travel routes to assess condition and linkage to water quality. This information assists in setting maintenance and improvement priorities.
a. Provide training to the engineering personnel performing condition surveys to successfully identify and assess linkage to water quality.
b. Conduct condition surveys jointly with engineering and hydrology personnel, to more accurately assess potential of road to impact water quality.
c. Prioritize inspections to roads at high risk of failure, followed by road segments that are hydrologically connected to the stream network, to reduce risk of diversions and cascading failures.
d. Identify diversion potential on roads, and prioritize for treatment.
2. Inspect drainage structures and runoff patterns after major storm events and snowmelt, and perform any necessary maintenance. Major storm events include all storm events for which the National Weather Service issues a local flood watch, advisory, or warning.
a. Determine the extent of hydrologic connectivity during and/or just after major storm events, including the connectivity of disturbed areas directly adjacent to the road network. Use this information to prioritize and plan improvements to road drainage.
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b. Immediately clean out, repair or reconstruct waterbars, inside ditches, culverts, and other features that are not functioning in order to hydrologically disconnect roads from surface waters and prevent discharges of sediment and other pollutants to water bodies.
3. Regularly inspect roads during all operations.
4. Keep roads closed to public use, but open for administrative use, in hydrologically functional condition. If waterbars are breached, forest personnel will promptly repair them.
5. Encourage field personnel of all disciplines to observe road deterioration or damage commensurate with travel to field activities, and report to engineering, for immediate action, if necessary.
a. Restrict operations if impact or imminent threat of impact to water quality is occurring.
b. Consider restricting operations if road damage such as surface displacement or active rutting is occurring.
Maintenance Planning:
1. Incorporate the forest’s Wet Weather Operations Standards and notification protocols in maintenance and operations.
2. Develop and implement an erosion control plan commensurate with the complexity and scale, and duration of the activity.
See BMP 2.13.
3. Develop and implement annual maintenance plans that prioritize road maintenance work for the forest or district.
a. Include roads identified as needing maintenance from field condition surveys, and roads identified through roads analysis and travel analysis that negatively impact water quality.
b. Determine method of accomplishment (contract, force account, permit, and cooperative) and define responsibilities and maintenance timing in the plan.
M5 Washout Repair, AG-9AC7-S-16-0080…
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