ATTACH_3_-(A00003)_Sample_Work_Plan_Request_CTIMR_WA1_Final_1-17-13).DOC

COMPREHENSIVE TACTICAL INFRASTRUCTURE MAINTENANCE AND REPAIR (CTIMR) SAMPLE WORK PLAN REQUEST

TABLE OF CONTENTS

21.0 Purpose

21.1 Scope

22.0 References

33.0 Work Requirements

33.1 Description of Work – Routine Requirements

33.1.1 Fence and Gates

83.1.2 Roads and Bridges

93.1.3 Drainage and Grate Systems

103.1.4 Lighting and Electrical Systems

113.1.5 Vegetation Control and Debris Removal

153.2 Description of Work – Urgent Requirements

153.2.1 Urgent Requirements – Scope and Objectives

163.2.2 Urgent Requirements – Additional Requirements

163.2.3 Urgent Requirements – Work Assumptions

183.3 Description of Work – Improvement Activity Requirements

183.3.1 Improvement Activity – Scope and Objective

183.3.2 Improvement Activity – Specific Work Requirements

193.3.3 Improvement Activity – Additional Requirements

204.0 General Assumptions

COMPREHENSIVE TACTICAL INFRASTRUCTURE MAINTENANCE AND REPAIR (CTIMR) SAMPLE WORK PLAN REQUEST 1.0 Purpose The purpose of this Sample Work Plan Request is to acquire contractor Maintenance and Repair (M&R) support along the Southwest Border and surrounding areas within Work Area 1 (El Centro and San Diego Sectors) that consist of: fence and gates; roads and bridges; drainage and grate systems; lighting and electrical systems and; vegetation control and debris removal.

This Sample Work Plan Request correlates to the work requirements and objectives set forth in the contract’s Statement of Work (SOW) in Section C, which outlines the work plan requirements and includes all other applicable contract terms and conditions.

The work elements included in this attachment are to be used solely for the purpose of preparing the Sample Work Plan required in the technical proposal and the associated costs required in the cost proposal, yet are representative of the work elements expected to be performed as part of the actual Contractor Work Plan. The work elements specified are intended solely for the purpose of providing a common base of work for the evaluation of contractor management/technical approach and costs. The actual work elements to be developed as part of the Contractor’s Work Plan during contract performance may vary significantly from the information contained in this Sample Work Plan Request.

1.1 Scope

All work being performed in conjunction with this Sample Work Plan Request will be in the El Centro and San Diego, California CBP Sector Area of Operation, which consist of the following:

2.0 References

The Contractor must comply with all applicable Federal, State, International Boundary and Water Commission (IBWC) regulations, local, and Native American Nation laws, regulations, policies and other requirements while executing the Sample Work Plan Request requirements. Relevant documents are listed in Section C of the RFP.

3.0 Work Requirements The following Sections 3.1 – 3.3 below describe the sample requirements and required maintenance and repair actions to be performed by the Contractor under this Sample Work Plan Request for routine work, urgent work, and one (1) improvement activity. General assumptions are listed in paragraph 4.0. Additional assumptions are listed after each listing of work, e.g., para. 3.1.1.1.

3.1 Description of Work – Routine Requirements 3.1.1 Fence and Gates

The Contractor shall perform the following types of work (Note: PF means “pedestrian fence”, and VF means “vehicle fence”.):

El Centro Fences

El Centro Gates

San Diego Fences

San Diego Gates

3.1.1.1 Fence and Gates Assumptions

· A section of the Pedestrian Fence is from post to post, typically 10 linear feet, with minor variations. A section of Post on Rail Vehicle Fence is typically 20 linear feet in length, with minor variations, and has up to 5 vertical posts. A section of Normandy style Vehicle Fence is up to 39 linear feet in length and has up to 5 cross (“X”) supports. A section of landing mat fence is from post to post, typically 8 LF.

· When repairing concrete filled bollards, the Contractor will ensure that there are no voids in the bollard. Concrete shall have a 27-day break compression strength of 3000 psi. Rebar shall be placed in any replacement or repair that originally contained rebar. Replacement or repair of rebar and concrete shall be consistent with the existing design.

· The structural integrity of the repaired fence shall be equal to or greater than the integrity of the fence before it was damaged in accordance with the TI fence design standard

· All repairs shall be tamper proof

· All repairs shall be completed with proper consideration to aesthetics in accordance with the TI fence design standard (i.e. fence repairs shall be completed with matching materials to the surrounding fence, unless otherwise approved by COR).

· Repairs shall not change the fence design (in accordance with the TI fence design standard), unless otherwise approved by COR.

· All repairs shall blend into the surrounding existing fence to the greatest extent possible.

3.1.2 Roads and Bridges

The Contractor shall perform the following types of work:

El Centro Roads

San Diego Roads

San Diego Bridges

3.1.2.1 Roads and Bridges Assumptions

· (Intentionally left blank) 3.1.3 Drainage and Grate Systems

The Contractor shall perform the following types of work:

El Centro Drainage and Grate Systems

San Diego Drainage and Grate Systems

3.1.3.1 Drainage and Grates Assumptions

· The structural integrity of the repaired grate shall be equal to or greater than the integrity of the grate before it was damaged.

· All repairs shall be tamper proof.

3.1.4 Lighting and Electrical Systems

The Contractor shall perform the following types of work:

El Centro Lighting and Electrical Systems

San Diego Lighting and Electrical Systems

3.1.4.1 Lighting and Electrical Systems Assumptions

· All electric poles in San Diego are 30-80 feet high, and El Centro are 40 feet high.

· Assume all lamps are MVR1000/U metal halide bulbs with ballasts matched to the lamps. Fuses are assumed to be 600V, 30 amp, MidgetFuse 1-1/2” X 13/32, IR, 100kA fast acting.

· Assume damaged light poles are 50% standard 40-foot utility poles and 50% 60-foot straight-round aluminum, stadium-style poles.

3.1.5 Vegetation Control and Debris Removal

The Contractor shall perform the following types of vegetation control and debris removal work:

El Centro Vegetation Control and Debris Removal

This site contains 2 sets of gates (a north and a south set). Each set of gates have three gate leaves that operate together as a unit.

1 per month

San Diego Vegetation Control and Debris Removal

A qualified biologist will be required to: a) stake or flag the limits of vireo critical habitat, and established native vegetation and willow tree re-growth within critical habitat, prior to initiating vegetation clearing; and b) be onsite during all vegetation clearing in or within 20 feet of vireo critical habitat. Vegetation clearing in vireo critical habitat will avoid established native vegetation and willow tree re-growth as identified by a qualified biologist.

The river subgrade cannot be disturbed without a USACE 404 Permit, and therefore pulling the root balls of the invasive plants (Arundo Cane, castor bean) in the area is not allowed without the permit. Accordingly, permit application is encouraged. However, using the Herbicide Rodeo is allowed in the interim until a permit is obtained.

Travel time is 1 hour round trip.

1 per year

Due to invasive plants (Arundo Cane, castor bean) in the area, the Contractor shall be required to have a USACE 404 Permit before work can be performed.

Travel time is 1 hour round trip 2 per year

3.1.5.1 Vegetation Control and Debris Removal Assumptions

In the execution of these tasks, the Contractor shall:

· Ensure, to the extent possible, that the patrol road is not blocked due to debris and vegetation removal activities. The contractor shall ensure that the integrity of the patrol road remains passable for Border Patrol vehicles.

· Provide all traffic control measures required per local codes.

· Find a location to store equipment and materials. Any equipment or material stored shall be maintained in a neat and orderly fashion to the satisfaction of the Contracting Officer Representative (COR). The COR shall reserve the right to require the immediate removal of any and/or all equipment and material if deemed in the best interest of the government.

· Haul and dispose of all excess material off site at the end of each workday or at the completion of work at that site. Materials shall be disposed of off government property in a state certified landfill, unless approved otherwise by the Contracting Officer. The Contractor shall provide all applicable licensing and/or permits for hauling and disposal of excess materials. The Contractor shall supply a copy of application and permit records to the COR as soon as each application is made and permit received.

· Hazardous materials incidents are subject to occur at any point in time, day or night, and in populated as well as remote areas of Work Area 1. The potential for encountering a hazardous material incident in El Centro and San Diego Sectors depends on the volume, distribution, and/or use of hazardous, toxic and other hazardous related substances and matter in a particular area. Should hazardous materials be unexpectedly encountered during the execution of work requirements, the Contractor shall stop only that work specifically affected by the hazardous material/substance and immediately notify the COR for further instructions.

· Remove litter, trash, and man-made debris within the areas to receive mowing during the vegetation control interval.

· Herbicide will be applied by licensed and certified applicators.

· This method of application will be inappropriate if there is a clear likelihood of damage to native vegetation in close proximity to the cane.

· Where foliar treatments are not appropriate, stems will be cut within 2 inches of ground surface and treated.

· Herbicide will be applied using a standard, 4-gallon backpack sprayer with spray nozzle. All spray nozzles will be tipped with sponges during herbicide applications adjacent to any native vegetation in order to avoid “drift” while applying herbicide. Herbicide will be thoroughly applied at the highest concentration allowed on the label to each leaf.

· The manufacturer’s recommended rate of application for Arundo cane will be followed.

· All crew members will have the proper personal protective equipment (PPE) when handling herbicides (e.g., safety glasses, rubber gloves, and long-sleeve shirts and pants).

· Work crews will not mix herbicide or refill sprayers within the floodway.

· All herbicides will be properly stored and disposed of per manufacturer’s recommendations. In addition, a marking dye will be added to herbicide mixture to ensure that overspray into native vegetation will not occur.

· All regulations involving use of herbicides will be followed, including Best Management Practices.

· Equipment Safety Inspection: Before any mechanized equipment is placed into service, it shall be inspected and tested by a person familiar with operations of that equipment as called for in EM 385-1-1, Paragraph 18.A.03.

· Tractors: All tractors over twenty drawbar horsepower utilized in the performance of this contract shall be equipped with certified roll-over protection and seat belts on the driver’s seat prior to commencing work. Prior to commencing work, the Contractor must furnish the COR a certificate of roll-over protection strength from either the manufacturer or a registered professional engineer.

· Brush Hog Type Mowers: All brush hog type mowers must be equipped with safety chains or other protective devices to prevent flying debris from striking persons or damaging property. Mowers must have wheels or skids, which will prevent tearing or plowing of the turf.

· Spray Equipment: Equipment used in the application of herbicides shall be designed for that purpose and used as directed by the manufacturer. Homemade and/or make-shift equipment shall not be permitted on the job and will not be tolerated. All appropriate protective clothing shall be worn. All applications shall be made by well-trained personnel and in the presence of a licensed applicator.

Vegetation Control Below are acceptable methods of vegetation control. Burning shall not be used as a method of vegetation control.

· Fine Mowing: Fine mowing shall be done with equipment designed for lawn and fine turf areas. This includes push and self-propelled walk behind mowers and riding lawn mowers and lawn tractors with belly mower. The mowing shall be accomplished to give the lawn a well-groomed appearance. Each pass of the mower shall overlap the previous pass so that no strips of uncut vegetation are visible in the area. The vegetation shall be mowed to the height of the adjacent lawn. Clippings from the mowing operations may be left on the lawn if not unsightly. Care shall be taken not to damage any trees or shrubs during the mowing operation.

· Tractor Mowing: Tractor mowing shall be done with equipment designed for large turf areas. This includes tractors with bush hogs, boom mowers or other approved mowing attachments. The mowing shall be accomplished to leave an evenly mowed turf area. The equipment shall be operated in a manner that will prevent the tractor wheels or mowers from tearing out turf. Each pass of the mower shall overlap the previous pass so that no strips of uncut vegetation are visible in the area. If strips of uncut vegetation remain in the mowed area, the strips shall be removed. The vegetation shall be mowed to a height of not more than four (4) inches or less than two (2) inches. Care shall be taken not to damage any trees or shrubs during the mowing operation.

· Trimming and Edging Requirements: Trimming and edging activities are an intricate part of the mowing activity. After the mowing operation is complete, the Contractor shall use trimming and edging equipment to remove undesirable vegetation, which could not be removed with the mowing equipment to a height to match the surrounding vegetation. The items to be trimmed and/or edged around shall include but are not limited to all trees, sidewalks, signs, guardrails, benches, post, fences, walls and flood control structures located within the area mowed. The trimming shall also include the removal of sucker growth and limbs from around trees and/or on the lower reaches of the trunks in the areas mowed. Any accumulations of trimmings on sidewalks or paved areas as a result of the trimming, edging, and mowing operation shall be removed. Care shall be taken not to damage any trees or shrubs with the trimming or edging equipment. If a road ditch falls within the area to be mowed and the ditch is too wet for mowing equipment, the vegetation in the ditch shall be cut using trimming and edging equipment.

· Pruning, Trimming, and Removal of Trees: This work includes, but is not limited to, the pruning and/or removal of lower limbs, which may interfere with mowing activities, the removal of dead wood, and the removal of sucker growth. All work shall be performed in accordance with ANSI Z 133.1 “Pruning, Trimming, Repairing, Maintaining and Removing Trees and Cutting Brush-Safety Requirements” with special emphasis given to the requirements that only qualified line-clearance tree trimmers be assigned to work where a potential electrical hazard exists.

· Pruning and Trimming of Trees: Tree trimming and pruning shall be under the direct supervision of a licensed arborist. All pruning and trimming shall be performed in accordance with the provisions of ANSI 300 “Standard Practices for Tree, Shrub and other Woody Plant Maintenance”.

· Chemical Application: Any chemical applied shall be done in strict accordance with the manufacturer’s recommendations. The label shall be strictly adhered to from the moment of purchase to and including the disposal of excess chemicals and the empty containers. Chemicals shall only be applied by or in the presence of a licensed applicator and shall only be applied after approval of the Contracting Officer/COR. Before each application, the Contractor shall complete an ENG FORM 4768-R, Jan 82, and provide it to the Contracting Officer/COR for approval. Approval of all chemicals shall be obtained from the Contracting Officer/COR prior to the use of that chemical. Label information and a material safety data sheet on the chemicals used as a part of this contract shall be provided to the Contracting Officer/COR.

· Dye Additive: A dye additive specifically designed for use with herbicides shall be added to the chemical mixture to indicate where herbicides have been applied. The dye shall be added in accordance with the manufacturer’s instructions and recommendations.

· Herbicide Application Areas: Herbicide may be applied along the base of the fence and floodwall and within rock riprap areas. Herbicides may also be applied at other areas not accessible by mowing and trimming equipment at the approval of the Contracting Officer’s Representative.

Debris Removal

· Hazardous materials/substances: Hazardous materials/substances may be encountered during performance of debris removal requirements and shall be handled and disposed of as needed in accordance with federal, state/local and other relevant laws and regulations. Should hazardous materials be encountered during the execution of work requirements, the Contractor shall stop only that work specifically affected by the hazardous material/substance and immediately notify the COR for further instructions.

· Litter, Trash, Man-Made Debris Removal: Litter and trash are defined as any undesirable material including but is not limited to plastic, paper, metal, glass, tires that accumulates from wind and/or water action or the littering/dumping by individuals. Where litter, trash, and man-made debris removal is called for in these specifications, the Contractor shall be responsible for the inspection of the entire area covered by that section of the contract and the collection, removal and disposal of all litter, trash, and man-made debris from the area.

· Natural Debris Removal: Natural debris is defined as, but is not limited to, rocks, fallen trees, branches, brush windfalls, logs, roots, and stumps. Where natural debris removal is called for in these specifications, the Contractor shall be responsible for the inspection of the entire area covered by that section of the contract and the collection, removal and disposal of all natural debris from the area. As an option, the Contractor can mow over the natural debris as long as it can be satisfactorily reduced. Otherwise, the Contractor shall remove and dispose of the natural debris from the area. The Contractor shall take great care not to disturb existing drainage remediation measures such as, but not limited to, rip rap. Any remediation measures displaced by the Contractor during debris removal shall be replaced in-kind by either salvaged or new materials. After the removal of all debris, the Contractor shall clean both sides of the fence and, if applicable, concrete low water crossings, to remove any silt deposits and/or soil build up that would otherwise obstruct the flow of water though the fence and wash crossing.

3.2 Description of Work – Urgent Requirements

3.2.1 Urgent Requirements – Scope and Objectives The Contractor shall respond to an urgent requirement to replace approximately 115 linear feet of new pedestrian fence (type P-3) that collapsed due to the excavation of foundation materials on the south side of the fence. The fence section is located approximately ½ hour drive from the El Centro Sector Headquarters building.

The Contractor shall install approximately 115-feet of new pedestrian style bollard (P-3) fence with a reinforced concrete foundation that will connect to the existing fence and foundation on either side of the current fence opening. To support the new fence and reduce the risk of future damage on the south side of the fence, the Contractor shall install a modular concrete block retaining wall approximately 10 feet south of the existing fence centerline that is 5 feet high. Approximately 10 vertical feet of fill materials have been excavated from the south side of the fence for the entire 115 length of the collapsed area. The area between the fence and the retaining wall will be backfilled with compacted engineered fill, soil cement, and capped with a fiber reinforced shotcrete slab. The anticipated period of performance for this requirement is 90 days.

3.2.2 Urgent Requirements – Additional Requirements In addition to the scope and objectives outlined in Section 3.2.1 above, the Contractor shall also perform the following requirements:

a. Safety Plan. The Contractor shall develop a safety plan that is administered by a company designated Safety Officer, who will be onsite at all times during working hours. Site-specific safety orientation will be administered at task start and at least weekly thereafter and as frequently as additional personnel are added. The Contractor shall provide and maintain crew water and the state required sanitary facilities.

b. Crane Plan. The Contractor shall submit a proposed crane plan to the COR for review and approval. The crane plan shall show the proposed crane set up locations for all proposed crane activities and detail any required utility coordination. The crane plan shall also include the specific model of each crane, the dimensions, wheel sizes, number of wheels, wheel spacing, tire pressure(s), number of axles, axle spacing, minimum wheel load to be exerted during operations and maximum outrigger load to be exerted during operations. The Contractor shall allow at least 10 working days for acceptance/non-acceptance of the crane work plan. No crane operations shall begin prior to written acceptance of the crane work plan by the COR, who shall be the Government approving authority.

c. Site Documentation. The Contractor, in the presence of the COR, shall document existing site conditions via video recording and photographs prior to start of construction. Documentation shall include condition of all existing roads (on-site and egress/ingress), structures, utilities and structures within and immediately adjacent to the project site. The COR will have the final approval that the documentation has been adequately completed. The Contractor shall provide a copy of all documentation on CD(s) and/or DVD(s) to the COR for the record.

d. Temporary Staging/Laydown Yard: The Contractor will be required to provide a temporary staging/laydown yard for necessary materials and equipment and a lockable Connex box for security of equipment and small tools during mobilization. The COR will coordinate site location of the equipment yard with the Contractor; locating it within the Government’s existing 60 foot wide Roosevelt Reservation right-of-way. The Contractor will coordinate gate access with the COR requiring full time access to at least one gate for deliveries and constant emergency medical support (EMS) access to personnel. The Contractor is responsible for full time security for the laydown yard and its personnel during the 90-day period of performance (PoP).

e. Best Management Practices: The Contractor shall follow the Work Area 1 Best Management Practices (BMPs) stated in Attachment (X), Section J of the RFP.

3.2.3 Urgent Requirements – Work Assumptions To accomplish the objectives of this work requirement, the Contractor shall assume the following:

a. The Contractor shall provide all labor, materials equipment, supplies, permits, fees, and consultant services required to construct and install the fence.

b. All construction required of the Contractor to complete the construction of the fence shall be in accordance with the criteria contained herein using industry standard materials and efficient practices. The Contractor shall use materials and equipment accepted within the construction industry. The materials selected shall be of high quality, durable and easily maintained.

c. The fence shall be constructed in accordance with the current version of the TI Standards for P-3 pedestrian fence.

d. All damaged fence materials have been removed from the site.

e. Installed fence panels, shall be constructed vertical with an allowable tolerance of 1-inch out of plumb over the entire height of the fence. Any discrepancies in dimensions, elevation, or alignment shall be brought to the attention of the COR prior to continuing with construction in the vicinity of the discrepancy. The COR reserves the right to resolve such discrepancy prior to commencing work within the vicinity of the discrepancy.

f. All fence construction materials and accessories shall have a 30-year service life requiring planned maintenance to occur not than every ten years.

g. All final grades adjacent the fence location shall be finished so drainage flows away from the fence so to prevent ponding of water at the fence and fence foundation location.

h. The concrete block retaining wall shall be constructed of precast blocks of sufficient size so as to withstand the horizontal pressure from the backfill materials and shall be interlocked and anchored to minimize the chances of removal by unauthorized actions.

i. All backfill materials shall be placed in compacted lifts to obtain 95% modified proctor maximum density.

j. The area between the concrete block retaining wall and the fence foundation shall be capped with at least 4 inches of fiberglass reinforced shotcrete.

k. The Contractor shall comply with all local traffic control codes including coordinating Border Patrol access through the site. The Contractor shall maintain Border Patrol access through construction areas on Patrol Road at all times.

l. Throughout construction of the fence, the Contractor shall ensure all materials, equipment, vehicles, personnel and any other construction related items and/or activities do not enter Mexican land or airspace. All such items shall be contained within existing roads adjacent to and generally parallel to the fence alignment, ingress/egress roads and established staging areas.

m. All existing structures within the area not designated for removal within the project plans shall be protected in place.

n. At the end of each work day the Contractor shall effectively close all fence, including the existing barbed wire fence, by either erection of new fence or temporary fence until such time that work begins the following day. The Contractor may use existing fence material for temporary fence to close off gaps overnight.

o. The Contractor shall remove all trash and debris from work site upon completion of work.

p. All egress/ingress access roads and on-site fence access roads shall be returned to existing conditions or better prior to final acceptance of this urgent work requirement. This shall include providing aggregate surface course needed to enable the access roads to be bladed in order to remove ruts, depressions, and/or pot-holes caused by construction activities.

3.3 Description of Work – Improvement Activity Requirements

3.3.1 Improvement Activity – Scope and Objective The Contractor shall provide roadway improvements to elevate an approximate 4,100Lf section of roadway along the border fence located approximately 15 miles to the east of Calexico, CA. This roadway and surrounding area flood due to a breach in an irrigation canal, located just to the south of the activity site. The flooding typically occurs over the roadway and to the north and south of the fence.

This area includes an existing fence access road (FC-2 class) in good condition that runs east-west on the north side of the Tactical Infrastructure (TI) fence line. The southern edge of the roadway is offset from the foundation of the TI fence by 8 feet. There is an average of 6 inches of water over the area 270 days out of the calendar year. The water level rises as high as 24 inches along the entire roadway during peak flooding and is highly acidic and corrosive.

The purpose of this improvement activity is to raise the existing roadway so that agents, maintenance crews and construction equipment (e.g., dozers, graders and haul trucks) can pass through the site regardless of the presence of water. After activity completion, water accumulations must be able to flow through both sides of the roadway to reduce ponding and ensure roadway remains drivable 24/7, 365 days per year. The road design shall have the capability to accommodate the east-west transportation of U.S. Border Patrol agents, maintenance vehicles and heavy equipment of all sizes (e.g., dozers, graders and haul trucks) at all times of the year. The anticipated period of performance for completing the improvement activity is 60 days.

3.3.2 Improvement Activity – Road Improvement Work Requirements

The Contractor shall perform the following road improvement work requirements:

a. Remove and haul off all material from the existing FC-2 road down to 4 inches below existing surface (for the entire 4,100Lf X 27Lf wide) to establish new road base site. Compact the newly defined surface area using a vibrator roller.

b. Determine the height of the roadway by using a parallel grid that is 3 feet high from the lowest point across the 4,100Lf length. 500Lf of the 4,100Lf will require a 3 foot elevation increase and drop 6 inches every 200Lf on either side of the 500Lf until the 4100Lf distance is reached.

c. Bring the road back to surface level by using a first layer of geotextile fabric to support the 4 inches minus ballast, to a thickness of 4 inches. Compact the surface to a minimum of 90% compaction using a vibrator roller.

d. Cover the full length of the roadway using a minimum of 6 inches finished surface material (class II aggregate or recycled material).

e. Add a second layer of geotextile fabric at surface level for the entire length and width of the roadway and cover with 4 inches minus ballast not to exceed a height of 1-1/2 feet from the midpoint of the surface layer, at which point a third and final layer of geotextile fabric will be added. Compact the surface every 6 inches to a minimum of 90% compaction using a vibrator roller.

f. Add a third layer of geotextile fabric to support the class II aggregate or recycled material from a minimum height of 6 inches (not to exceed a height of 1-1/2 feet) to form the final surface layer, providing a total height of 3 feet at the midpoint of the roadway. Compact the surface every 6 inches to a minimum of 90% compaction with a vibrator roller until full height is obtained.

g. Place 20 plastic culverts within the low areas to allow proper flow and drainage. Culverts shall be a minimum of 10 inches in diameter.

h. Safety Berm: In the area that is receiving the most fill (approx. 1,000 linear feet) contractor shall install a safety berm (curb) consisting of native material that has been moisture conditioned, wheel rolled, and placed with the blade. This will act as an earthen curb to help minimize the chance of agents driving off the side of the built up roadway. This section of roadway should be finish graded to a cross slope of 2% southerly. 150 feet transitions to crowned sections will improve handling at elevated speeds.

i. Plastic Deflectors: The Contractor shall install 400 plastic deflectors within the berm, not to restrict the 12 foot driving surface. The plastic deflectors shall extend 4 feet from the surface and be spaced at 20 feet apart and parallel to each other for the 4,100Lf of roadway.

j. Acceptance Criteria: Final road design will be 27-foot wide base at 3:1 slope to obtain a consistent 12 foot wide top/drivable surface. Elevations as shown in the field will be attained in the above manner and will be monitored by the Contractor Quality Control Officer. This section of roadway should be finish graded to a cross slope of 2% southerly. 150 feet transitions to crowned sections will improve handling at elevated speeds.