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Supplemental Specifications
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Twentymile Road Storage & Decommissioning Forest Service Supplemental Specifications Table of Contents
| Table of Contents | 1 |
| Preface | 4 |
| 101 - Terms, Format, and Definitions | 5 |
| 101.01 Meaning of Terms | 5 |
| 101.03 Abbreviations. | 5 |
| 101.04 Definitions. | 5 |
| 102 - Bid, Award, and Execution of Contract | 8 |
| 102 Bid, Award, and Execution of Contract | 8 |
| 103 - Scope of Work | 9 |
| Deletions | 9 |
| 104 - Control of Work | 10 |
| Deletions | 10 |
| 104.06 Use of Roads by Contractor | 10 |
| 105 - Control of Material | 11 |
| 105.02 Material Sources. | 11 |
| 105.02(a) Government-provided sources. | 11 |
| 105.05 Use of Material Found in the Work. | 11 |
| 106 - Acceptance of Work | 12 |
| 106.07 Delete | 12 |
| 107 - Legal Relations and Responsibility to the Public | 13 |
| 107.05 Responsibility for Damage Claims. | 13 |
| 107.06 Contractor’s Responsibility for Work. | 13 |
| 107.09 Legal Relationship of the Parties. | 13 |
| 107.10 Environmental Protection. | 13 |
| 108 - Prosecution and Progress | 14 |
| 108 Delete. | 14 |
| 109 - Measurement and Payment | 15 |
| 109 Deletions | 15 |
| 109.02 Measurement Terms and Definitions. | 15 |
| 151 - Mobilization | 16 |
| 155 - Schedules for Construction Contracts | 18 |
| 155 Delete. | 18 |
| 156 - Public Traffic | 19 |
| 157 - Soil Erosion Control | 21 |
| 157.02 Materials | 21 |
| 157.03 General. | 21 |
| 157.08 Water Crossings. | 22 |
| 157.09 Diversions. | 22 |
| 171 - Weed and Disease Prevention | 23 |
| 202 - Additional Clearing and Grubbing | 25 |
| 202.04 Selective Clearing. | 25 |
| 203 - Removal of Structures and Obstructions | 26 |
| 203.01 Description. | 26 |
| 203.05 Disposing of Material. | 26 |
| 203.08 Payment. | 26 |
| 211 – Roadway Obliteration | 27 |
| 211.01 Description. | 27 |
| 211.02 Performance. | 27 |
| 211.03 Stream Channel Restoration. | 28 |
| 211.04 Ditch Relief Culvert Removal. | 28 |
| 211.05 Full Recontour. | 28 |
| 211.06 Partial Recontour. | 28 |
| 211.07 Deep Ripping of Roadbed. | 29 |
| 211.08 Relief Swales. | 29 |
| 211.09 Waterbars. | 29 |
| 211.10 Scarification of Roadbed. | 29 |
| 211.11 Gradient Control Structures. | 29 |
| 211.13 Method. | 29 |
| 211.14 Basis. | 30 |
| 622 - Rental Equipment | 31 |
| 622.02 Rental Equipment. | 31 |
| 625 - Turf Establishment | 32 |
| 625.03 General. | 32 |
| 625.04 Preparing Seedbed. | 32 |
| 625.05 Watering | 32 |
| 625.06 Fertilizing. | 32 |
| 625.07 Seeding. | 33 |
| 625.08 Mulching. | 34 |
| 625.09 Protecting and Caring for Seeded Areas | 34 |
| 625.11 Measurement. | 34 |
| 713 - Roadside Improvement Material | 35 |
| 713.05 Mulch. | 35 |
| 718 - Traffic Signing and Marking Material | 36 |
| 718.05 Aluminum Panels | 36 |
Preface Preface_wo_03_15_2004_m Delete all but the first paragraph and add the following:
The Forest Service, US Department of Agriculture has adopted FP-03 for construction of National Forest System Roads.
101 - Terms, Format, and Definitions 101.00_nat_us_07_25_2005
101.01_nat_us_01_22_2009
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:
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:
Figure 101-1—Illustration of road structure terms.
102 - Bid, Award, and Execution of Contract 102.00_nat_us_02_16_2005 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 Deletions
Delete Sections 104.01, 104.02, and 104.04.
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.
Access Coordination:
The Contractor shall coordinate with the Contracting Officer, to obtain access through the gate on Road 2411 at the junction with 2692, prior to start of work and during the course of the contract, as directed by the Contracting Officer. The gate will need to be closed at all times and the number of trips per vehicle will need to be recorded on a daily basis by the contractor and submitted to the Contracting Officer once a week.
Access Times:
The Contractor shall coordinate with the Contracting Officer about specific dates to start and stop work.
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:
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.
· 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.
108 - Prosecution and Progress 108.00_nat_us_02_16_2005 108 Delete.
Delete Section 108 in its entirety.
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”.
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.
151.00_01_us_10_11_2006 151 - Mobilization Delete Section 151 in its entirety and replace with the following.
Description
151.01 This work consists of moving personnel, equipment, material, and incidentals to the project and performing all work necessary before beginning work at the project site; obtaining of permits, insurance, and bonds. This work also includes washing and treating construction equipment and vehicles necessary for equipment transport to remove seeds, plants, and plant fragments before the equipment is used on Forest Service lands, according to the requirements within.
Construction Requirements
Wash the sides, tops, and undercarriages of all construction equipment. Remove all seeds, plants, plant fragments, dirt, and debris from the construction equipment. Only equipment inspected by the Forest Service will be allowed to operate within the project area. All subsequent move-ins of equipment to the project area will be treated in the same manner as the initial move-in. This requirement does not apply to cars, pickup trucks, and other vehicles that regularly travel between the construction site and areas off the National Forest.
Equipment will be considered free of soil, seed, and other such debris when a visual inspection does not disclose such material. Disassembly of equipment, components or the need for specialized inspection tools is not required.
Notify the CO in writing at least 72 hours before moving any construction equipment onto the national forest. Notification will include an agreed upon location where the equipment will be available for inspection by the Forest Service. Inspection will be required after every cleaning.
Use methods of cleaning and locations for cleaning approved by the CO.
For work at a commercial washing facility, use an approved facility.
New infestations of noxious weeds of concern to Forest Service and identified by either Contractor or Forest Service, in the Project Area or on the haul route, will be promptly reported to the other party. Contractor and Forest Service will agree on treatment methods to reduce or stop the spread of noxious weeds when new infestations are found. A current list of noxious weeds of concern to Forest Service is available at each Forest Service office.
Measurement
151.02 Clean equipment prior to moving onto this project. The initial cleaning will not be included in the measurement for payment. Payment for cleaning will only be made if subsequent cleanings are ordered by the CO. Measurement shall be on an “each” basis, meaning one complete cleaning of all equipment required for this contract. Subsequent cleanings necessitated by the Contractor’s actions but not directed by the CO will not be included in the measurement for payment.
Measure mobilization according to Subsection 109.02.
Payment
151.03 The accepted quantity, measured as provided in Subsection 109.02, will be paid at the contract price per unit of measurement for the Section 151 pay item shown in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05.
Progress payments for mobilization lump sum will be paid as follows:
(a) If applicable, bond premiums will be reimbursed according to FAR Clause 52.232-5 Payments Under Fixed-Price Construction Contracts, after receipt of the evidence of payment.
(b) When 5 percent of the original contract amount is earned from other bid items, 50 percent of the mobilization item, or 5 percent of the original contract amount, whichever is less, will be paid.
(c) When 10 percent of the original contract amount is earned from other bid items, 100 percent of the mobilization item, or 10 percent of the original contract amount, whichever is less, will be paid.
(d) Any portion of the mobilization item in excess of 10 percent of the original contract amount will be paid after final acceptance.
Include all costs associated with the initial cleaning of equipment in the unit bid price for Mobilization. Cleaning for subsequent move-ins will not be paid for unless after a suspension ordered by the CO.
155 - Schedules for Construction Contracts 155.00_nat_us_05_11_2004 155 Delete.
Delete Section 155 in its entirety.
156 - Public Traffic 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 | |
| Retroreflective 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 safely and adequately accommodate traffic. Delays may not exceed _30__ minutes at any one time followed by an open period of no less than _60__ minutes.
Perform no work that interferes or conflicts with traffic or existing access to the roadway surface until a traffic control plan in accordance with MUTCD Part 6A.01 has been approved. Post construction signs and traffic control devices in conformance with MUTCD. Assure that all required signs are in place and approved prior to beginning work on project.
If the Contractor allows public traffic to use a new road being constructed prior to completion, it will be considered an existing road for traffic control purposes.
Do not construct detours outside of the clearing limits or use alternate route detours without the approval of the CO.
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 shall 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 or cover 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 6E. 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). Erect and maintain appropriate barricades and signs 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 Closed |
| 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 to Pay Item 15101.
157 - Soil Erosion Control
157.02 Materials
Add the following:
Provide bales, wattles, logs and rolls from a certified noxious weed free source, and submit copies of the certifications to the Contracting Officer prior to utilizing and materials onsite.
157.03 General.
Delete the first two paragraphs and replace with the following:
It is not the responsibility for the contractor to file for the proper Storm Water Permits, however, it is the Contractor’s responsibility to ensure the status of the permits have been approved prior to commencing work. This information and copies of the permit can be obtained from the Contracting officer. Additionally, it is the Contractor’s responsibility to submit an Erosion Control Plan detailing permanent and temporary control measures to minimize erosion and sedimentation during and after construction in accordance with the plans and storm water permits. Do not modify the type, size, or location of any control or practice without prior written approval. Submit the erosion control plan proposal at least 7 days before operations begin to the CO for approval.
Reflect in the Erosion Control Plan information to achieve all requirements in the storm water permits, and any special concerns and measures necessary to protect resources and government improvements continuously throughout the time of the project. Include:
1. The construction activities and sequence of implementation relating to specific erosion control measures.
1. The location and type of permanent controls to be implemented during construction.
1. The location and type of temporary controls to be implemented during construction.
1. For work in stream channels with running water a detailed dewatering plan.
1. For work in stream channels without flowing water describe level of ground and vegetative disturbance and measures to reduce potential sediment delivery.
1. Description of the monitoring plan.
Add the following to the third paragraph:
Upon completion of construction at the site, remove all temporary erosion control devices, dewatering materials and equipment from Government property.
157.08 Water Crossings.
Add the following:
At any channel crossing where there is running water, dewater by rerouting water flow around the site before and during excavation and embankment operations. Rerouting procedures will be prior approved by the Contracting Officer. Return any water flow back to original route after excavation unless prior approval by Contracting Officer. In instances where rerouting water flow is not feasible, conduct work according to procedures outlined in the drawings to ensure minimum sedimentation into the stream work.
157.09 Diversions.
Delete the first sentence and replace with the following:
When shown on the plans, construct temporary channels, temporary culverts, or sandbags to divert water around disturbed areas and slopes. Earthen dams are prohibited.
171 - Weed and Disease Prevention Description
171.01 This work consists of washing and treating construction equipment to remove seeds, plants, and plant fragments from the equipment before the equipment is used on National Forest System lands.
Material
171.02 Conform to the following Subsection:
Water 725.01
Construction Requirements
171.03 General . Notify the CO in writing at least 72 hours before moving any construction equipment onto the national forest. Notification will include an agreed upon location where the equipment will be available for inspection by the Forest Service. Inspection will be required after every cleaning.
In addition, Dump Beds and Trailers, or other hauling equipment for hauling materials to the job site shall be washed.
Construction equipment does not include cars, pickup trucks, and other vehicles that regularly travel between the construction site and areas outside of National Forest System lands.
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 National Forest System lands, use a washing system that traps all wash water and either stores it for removal from National Forest System lands 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.
202 - Additional Clearing and Grubbing
202.04 Selective Clearing.
Add the following:
Where roads are overgrown with brush and small regeneration, move and operate equipment over brush without grubbing, scarifying or otherwise destroying the established root system in the roadway except at designated work sites, and for safe passage(a service road) if needed for safety. Cut and utilize as slope stabilization debris, brush within the roadway prism that is designated on the ground or as shown on the drawings. Minimize the amount of slash generated by cutting the minimum about of brush to safely pass equipment. Do not grub.
When marked in advance, remove hazard trees or unstable live 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.
203 - Removal of Structures and Obstructions
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.
203.05 Disposing of Material.
Add the following:
(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 logs as log erosion barriers on contours. Place logs so that 80% of their length is on the ground surface.
2. Scatter slash on bare or disturbed areas within or outside the clearing limits as directed.
3. 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.
(n) Non Native Material. Material designated for disposal, or AS SHOWN IN THE DRAWINGS, dispose of material in a legal manner, following, all governing entities having jurisdiction. When required, submit receipts or manifests for disposed material from proper disposal facilities. All non native material designated for disposal will be considered the property of the contractor.
203.08 Payment.
The accepted quantities will be paid at the contract price per unit of measurement for the Section 203 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See subsection 109.05.
211 – Roadway Obliteration
211.01 Description.
Delete this section in its entirety and replace with the following:
This work shall consist of the removal of roadways by the restoration of all designated stream crossings which involves excavation to remove all designated drainage structures and associated fill and restoring the site back to its natural contour. This will also include excavation of some stream crossings without drainage structures, including springs, seeps, and headwater swales. Other work will include the installation of gradient control devices, log/rock revetments, removal of the roadbed by full or partial recontouring, deep ripping, scarification, construction of waterbars, removal of ditch relief culverts, clearing and grubbing, roadway brushing, construction of relief swales and grade dips.
Stream crossings may or may not have water. Prior to working in live streams the Contractor must have an approved Erosion Control Plan as required under Section 157.
CONSTRUCTION REQUIREMENTS
211.02 Performance.
Work shall begin at either the road end or at a location designated by the Contracting Officer and progress out towards the permanent road closure. Contractor may need to stockpile riprap at sites designated for construction of hardened stream crossings prior to decommissioning operations. All designated drainage structures/appurtenances shall be removed, as stated in Section 203.
Where ripping is required a 200' long test strip or a representative area designated by the Contracting Officer shall be ripped to determine the number of passes necessary to adequately decompact the upper layer of roadbed for each roadway within the same width, depth, soil and surface parameters as determined by the Contracting Officer.
Slash and/or concentrations of woody debris, frozen soil, ice and snow shall not be incorporated into the excavated material. Large woody debris as well as concentrations of slash shall be scattered on the newly recontoured areas. Woody debris and slash shall not be place to obstruct the pedestrian trail on roads where trail construction has been specified.
Where roads are overgrown with brush and small regeneration, move and operate equipment over brush without grubbing, scarifying or otherwise destroying the established root system in the roadway except at designated work sites, and for safe passage(a service road) if needed for safety.
211.03 Stream Channel Restoration.
Stream channel restoration, Item 21120, shall consist of removing pipe culverts carrying perennial streams, intermittent streams, weeps, and springs and recontouring the ground to match original conditions. Excavate material above and around culvert to facilitate pipe removal. Before placing excavated fill material in the disposal areas, as SHOWN ON THE DRAWINGS, deep ripping of the roadbed is required to a depth of 18”. Recontour the excavated fill material to ensure proper drainage.
The removal and disposal of any drainage structures shall be in accordance with Section 203.
Adjacent roadways shall be recontoured to approximate adjacent side slopes, leaving no oversteepened or undercut material.
211.04 Ditch Relief Culvert Removal.
Ditch relief culvert removal, Item 21131, shall consist of removing pipe culverts providing roadside ditch relief. Excavate material above and around culvert to facilitate pipe removal. Before placing excavated fill material in the disposal areas, as SHOWN ON THE DRAWINGS, deep ripping of the roadbed is required to a depth of 18”. Recontour the excavated fill material to ensure proper drainage. Deep ripping of roadbed in these areas will not be paid for separately and is indirectly paid under this pay item according to the schedule of items.
The removal and disposal of any drainage structures shall be in accordance with Section 203.
The remaining trench shall be sloped back not steeper than 3:1, remain connected to the inside ditch and be outsloped to provide drainage.
211.05 Full Recontour.
Full recontouring of road shall consist of ripping the roadbed to a depth of 18” - 24", removing the full roadway fill, placing the fill onto the ripped roadbed, and contouring it to the adjacent natural side slopes as SHOWN ON THE DRAWINGS. Large and small woody debris shall be scattered on the newly recontoured surface from any available source along the section of roadway being recontoured. The recontoured road slope should closely match the original ground line prior to original construction. Distances are SHOWN ON THE DRAWINGS. Deep ripping of roadbed in these areas will not be paid for separately and is indirectly paid under this pay item according to the schedule of items.
211.06 Partial Recontour.
Partial recontouring of road shall consist of ripping the roadbed to a depth of 18” – 24”, removing a portion of the fill, placing the fill onto the ripped roadbed, and contouring it to the adjacent natural side slopes as SHOWN ON THE DRAWINGS. Large and small woody debris shall be scattered on the newly recontoured surface from any available source along the section of roadway being recontoured. Distances are SHOWN ON THE DRAWINGS. Deep ripping of roadbed in these areas will not be paid for separately and is indirectly paid under this pay item according to the schedule of items.
211.07 Deep Ripping of Roadbed.
Deep Ripping shall consist of decompacting the full roadbed to a depth of 18” - 24”. After decompaction, the road surface shall be left in a roughened condition with no long furrows, which may concentrate or channelize water. Large and small woody debris shall be scattered on the newly ripped surface from available sources along the section of roadway being decompacted. Road segments only requiring deep ripping are SHOWN ON THE DRAWINGS.
211.08 Relief Swales.
Relief Swales shall be constructed as SHOWN ON THE DRAWINGS.
211.09 Waterbars.
Construct AS SHOWN IN THE DRAWINGS and as staked/marked on the ground by the Contracting Officer.
211.10 Scarification of Roadbed.
Scarifying shall consist of decompacting the full roadbed to a depth of 6” - 12”. After decompaction, the road surface shall be left in a roughened condition with no long furrows, which may concentrate or channelize water. Large and small woody debris shall be scattered on the newly scarified surface from available sources along the section of roadway being decompacted. Road segments only requiring scarifying are SHOWN ON THE DRAWINGS.
211.11 Gradient Control Structures.
Rock and/or log gradient control structures will be constructed as SHOWN ON THE DRAWINGS. Spacing and number of gradient control structures may be adjusted and marked in the field by the Contracting Officer. Structural excavation, gathering of designated materials (rocks & logs) form near the site will not be paid separately unless designated in writing from the Contracting Officer.
Measurement
211.13 Method.
Measure the Section 211 items listed in the bid schedule according to Subsection 109.02 and the following:
Measure Sediment Basins under Section 157.
Work for Gradient Control Structures are included to Stream Channel Restorations, unless designated in the bid schedule. No separate measurement for Gradient Control Structures are necessary unless within the bid schedule.
All vegetation clearing will be incidental to Stream Channel Restorations, unless designated under section 201 or 202 and/or shown in the bid schedule.
Measure Seeding, Fertilizer and Mulch under Section 625.
No measurement is needed for volume of excavation for Stream Crossing Categories, unless shown in the bid schedule.
Payment
211.14 Basis.
The accepted quantities will be paid at the contract price per unit of measurement for the Section 211 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See subsection 109.05.
622 - Rental Equipment
622.02 Rental Equipment.
Delete the first two sentences of the first paragraph and add the following:
Provide equipment of the type listed in the Schedule of Items. Provide equipment of at least the minimum size needed to efficiently perform the work. Submit the model number, make, specifications, and attachments of the equipment to the CO for approval before delivery to the project site. Equipment shall be no more than 15 years old and shall be reasonably free of leaks and other mechanical deficiencies.
Delete “along with certified copies of the payrolls” in the last sentence of the third paragraph.
625 - Turf Establishment
625.03 General.
Delete this subsection and replace with the following:
Seeding Seasons "Time of application shall be as specified:
| During the Months marked with an 'X' below: |
| JAN |
| FEB |
| MAR |
| APR |
| MAY |
| JUNE |
| JULY |
| AUG |
| SEPT |
| OCT |
| NOV |
| DEC |
| X |
| X |
| X |
| X |
X
Should climatic conditions permit, application may be performed outside the months marked above upon written approval by the Contracting Officer."
"Unless otherwise approved, a maximum of 5000 lineal feet of roads(s) may unseeded after October 1. A maximum of 5000 lineal feet of road(s) (including pioneer roads) may remain unseeded at the end of any construction season."
"Seed shall be placed on portions of road fill and/or back slopes, waste areas, and other disturbed areas that have been constructed to template lines within 5 days of the construction activity or as specified in writing by the Contracting Officer.
625.04 Preparing Seedbed.
Delete entire subsection.
625.05 Watering
Delete entire subsection.
625.06 Fertilizing.
Add the following:
N = nitrogen, P = phosphorus, K = potassium.
1. Timing: Fertilize at time of seeding,
2. Type: 16N-16P-16K
3. Rate: 200 lbs/acre.
625.07 Seeding.
Delete the first sentence and add the following.
Apply seed mix by the following methods.
(a) Dry method. Delete the third sentence.
Add the following after subsection (b).
Application: “The kinds of seed to be furnished and the amounts to be applied in terms of pure seed (PLS) shall be as follows:
NATIVE CULTIVAR MOIST SITE MIX
| SPECIES* |
| PLS** LBS/AC |
| Slender wheatgrass "Revenue" (Elymus trachycaulus ssp. trachycaulus) |
| 5.0 |
| Tufted hairgrass "Nortran" (Deschampsia caespitosa) |
| 2.0 |
| Mountain brome "Bromar" (Bromus marginatus) |
| 5.0 |
| Blue wildrye "Arlington" or "Elkton" (Elymus glaucus) |
| 4.0 |
| Quickguard Sterile Triticale (Triticum aestivum x Secale cereal) |
| 2.0 |
| Yarrow (Achillea millefolium) |
| 0.5 |
| Mountain lupine (Lupinus argenteus ssp. rubicaulis) |
| 0.5 |
| TOTAL |
| 19 |
*All seed is required to be “Blue Tagged” and certified noxious weed free.
**Refers to “Pure Live Seed.”
Pounds of seed to be furnished per acre shall be obtained by dividing the pounds of pure live seed (PLS) required per acre by the product of the percent purity and percent germination.
| Example: | 5(# PLS/acre) = 6.55 pounds commercial seed per acre. | |
| 0.90 x 0.85 (where purity=90% and germination=85%) |
625.08 Mulching.
Delete the entire subsection and replace with the following:
Vegetative mulch should be applied as needed. Uniformly apply mulch after seeding and fertilizing at a rate of 2,000 pounds/acre. Purchased mulch material should be certified (tagged) weed free straw or grass hay.
625.09 Protecting and Caring for Seeded Areas
Delete the first sentence and add the following:
Protect and care for seeded areas until final acceptance.
625.11 Measurement.
Delete the entire Subsection and replace with the following:
Measure the Section 625 items listed in the bid schedule according to Subsection 109.02.
713 - Roadside Improvement Material 713.05_nat_us_03_02_2005
713.05 Mulch.
Assure that mulch used on the project is certified noxious weed free by the appropriate authority in the jurisdiction of use.
718 - Traffic Signing and Marking Material 718.05_nat_us_08_05_2009
718.05 Aluminum Panels
Delete the third paragraph and replace with the following:
Clean, degrease and properly prepare the panels according to methods recommended by the sheeting manufacturer. Conversion coatings will conform to ASTM B-921 or ASTM B-449.
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