Attachment__1.pdf

Attachment #1 – Performance Work Statement and Quality Assurance Plan Trails Maintenance and Construction Contract

Wayne National Forest

REQUIREMENT

TASKS/

CRITICAL

SUB-TASKS

QUALITY

STANDARDS AQL RELATED

DRAWING

MONITOR

METHOD

Mobilization

90701

Mobilization

Mobilization will be from company office address or location of equipment at the time of issuance of each TO (lessor of two distances). Contractor will be paid mobilization one time to the center of work area(s) listed on TO and will not be paid any mobilization between sites on same TO.

SCA, OSHA,

Industry practice.

Reasonable production for the task

N/A Visual 100% by COR while work is being done.

Tread and Prism

91101

Excavation

This work consists of the excavation and placement of excavated material, regardless of its nature, from within the trailway or from other sources. Includes excavation, embankment, and backfill construction required to shape and finish the trailbed, ditches, backslopes, fill slopes, drainage dips, trail passing sections, and turnouts. Also includes excavation and embankment work required to construct culverts, trail bridges, shallow stream fords and gully crossings, talus and rubble rock sections, and climbing turns. Size of equipment will be appropriate for trail tread width of ≤60 inches.

2014 USFS

Standard Specifications for Construction and Maintenance of Trails (Trail Specifications 911.10)

a. Safe = 100%

b. Smooth Surface = 100%

c. Potholes, Ruts, remedied = 100%

d. Drainage = 100%

Produced at time of TO

Visual 100% and testing if spelled out in TO

CRITICAL

SUB-TASKS

QUALITY

STANDARDS AQL RELATED

DRAWING

MONITOR

METHOD

91102

New Trail Construction

Construct new trail with safe, smooth, drained surface free of potholes, ruts, unneeded berms, washboard and debris. This work includes brushing and grubbing, cutting side slopes, excavating and filling to create tread, constructing drainage dips, lead-off and side ditches, turn-outs, and turnarounds. All work but spreading and compacting aggregates is included. Water, if needed to prevent heavy dusting and/or to allow the aggregates to bind, will be applied as needed.

Size of equipment will be appropriate for trail tread width of ≤60 inches.

Trail Specifications 910-920

a. Safe = 100%

b. Smooth Surface = 100%

c. Potholes, Ruts, WNF-T-1

WNF-T-2

WNF-T-3

WNF-T-4

STD-925-01

Visual 100% by FS COR while work is being done.

91106

Existing Trail Restoration / Tread Maintenance

This work consists of restoring the original trail template, including clearing, removing slough and berm, borrow, filling ruts and troughs, reshaping backslopes, excavation, reshaping trail tread, restoring drainage and other trail structures, constructing check dams, and removing protruding rocks, roots, stumps, slough, and berms.

Provide safe, smooth, drained surface free of potholes, ruts, unneeded berms, washboard and debris while recovering any useable existing aggregate. This work also includes the reconditioning of drainage dips, turn-outs, and turnarounds. All potholes will be scarified to the lowest point in the hole and the aggregates and soil re-graded and smoothed over the entire trail to produce smooth uniform surface free of debris. Water, if needed to prevent heavy dusting and/or to allow the aggregates to bind will be applied as needed. Clean ditches to maintain free flow in an environmentally sound manner.

Trail Specifications 911.30

SPS 911.30

a. Safe = 100%

b. Smooth Surface = 100%

c. Potholes, Ruts, WNF-T-2 Drivability/walking surface smooth on 100% of the trail

CRITICAL

SUB-TASKS

QUALITY

STANDARDS AQL RELATED

DRAWING

MONITOR

METHOD

91116

Obliteration of Abandoned or Unauthorized Trail

This work consists of removal and disposal of existing structures, including turnpikes, walkways, bridges, culverts, signs and posts, and other material within the trailway, above or below ground. Work also includes salvaging DESIGNATED materials and backfilling the resulting trenches, holes, and pits.

Trail Specifications 911.60

100% Produced at time of TO

Visual 95% - No safety concerns

Clearing Limits

91210

Brush Cutting

Remove brush, trees less than 4 inches in diameter, and shrubs within the clearing limits. Clear to the dimensions 6’ W x 10’ H or 12 inches beyond the fill and backslope catch points, whichever is greater, or as stated on TO.

Sections of trails may be much wider than 60” tread width; in these instances, clear 12 inches beyond the trail tread.

Trail Specifications 912.20

95% to standard drawing

WNF-T-1 Visual 95% - No safety concerns

91217

Hazard Tree Removal

Remove trees and snags that are broken off or that are in a leaning, unstable position over the trailway to designated areas as SHOWN ON THE PLANS. Cut designated danger trees so that stump is flush to ground. Do not leave felled trees parallel with the trail unless there are sufficient barriers to keep them from rolling or sliding onto the trail. Lop limbs to reduce slash concentration and scatter the clearing debris outside and below the clearing limits. If the trunk or a portion thereof, falls within the trailway, remove that portion within 4 feet of either side of the trail centerline and scatter a minimum distance of 4 feet beyond and below the trail centerline.

Trail Specifications 912.40

100% Produced at time of TO

WNF-T-1

Visual 100% and testing if spelled out in TO

Surfacing

CRITICAL

SUB-TASKS

QUALITY

STANDARDS AQL RELATED

DRAWING

MONITOR

METHOD

91303, 91307

Aggregate and Base Course Surfacing Compaction Method

This work consists of furnishing, hauling, watering, placing, and compacting aggregate surfacing or base course. Scarification of base course will be specified by COR where needed.

Provide and Place as required in TO in the locations and depth as shown or requested (compaction included).

Excess haul rate is added separately (Pay Item 91303.9) for every ¼ mile additional haul past the first ½ mile.

Trail Specifications 913.10.

Gradation/quality meets ODOT Standards for aggregate materials placement in accordance with traveled way typical and Task Order

In accordance with ODOT Standards & accepted industry practice 95%

WNF-T-3 and

TO

Certification of Quality of Aggregate one sample per lot.

91303.9

Aggregate Surfacing, Additional ¼ Mile Haul Pay Rate

Excess Haul Length - For every ¼ mile additional haul past the first ½ mile an additional fee may be added to the price of each ton of aggregate or rock used.

Example: Stone excess haul price for ¼ mile (one-way) haul from stockpile site = aggregate/rock base rate/ton (SCA).

Trail Specifications 913.50.

Gradation/quality meets ODOT Standards for rock materials placement in accordance with culvert typical and

TO.

In accordance with ODOT Standards accepted industry practice 100%

ODOT specification 703.19

AS Provided in

TO.

Certification of Quality of rock

- one sample per lot from supplier

Verification of trail distance and visual inspection on the ground for gradation and quality of rock.

91309

Watering

Provide water as needed and directed by FS for use during dry conditions to bring materials to near optimum moisture content to ensure compaction. This will be paid for by the 1000 gallon unit i.e. “K” gallons. Water may be obtained from local surface water with approval of the COR. Water will be spread evenly and effectively on soil/aggregate by way of a spreader bar, sprinkler or handheld spray device as approved by FS. No flooding of aggregate/soil will be allowed.

Trail Specifications 913.10.01 Meets intent of the contract and is spread and mixed with soil/aggregate uniformly to the correct moisture content.

In accordance with State Standards accepted industry practice 100%

N/A Visual

Provide volumes of tanks/hauling equipment to verify volume placed. FS will reserve the right to measure the container to attain volume.

CRITICAL

SUB-TASKS

QUALITY

STANDARDS AQL RELATED

DRAWING

MONITOR

METHOD

91316.1

Grid Pavement Units, Concrete Mat (4x16 ft)

Use erosion control concrete mats meeting specifications similar to Scioto Valley Precast Company.

This work consists of furnishing and installing grid pavement units, including excavation, backfilling, and geosynthetics. Place and bed blocks so they rest firmly against adjacent blocks, are stable, and form a smooth and uniform tread surface. After approval of the grid block installation by COR, place and compact suitable material into holes between and around grid pavement units.

Trail Specifications 913.40, 991 Use concrete grid pavement units with minimum compressive strength of 4495 lbs/in2 that meet the

NCMA A-15-82:

Specifications for Grid Pavers.

100% compliance with USFS Standard Specifications for Construction and Maintenance of Trails

AS Provided in

TO

In accordance with USFS Standard Specifications for Construction and Maintenance of Trails

91316.2

Grid Pavement Units, Pavers

Use pavers meeting specifications similar to ArmorLoc® open cell pavers. Furnish and install grid pavement units, including excavation, backfilling, and geosynthetics.

Place and bed blocks so they rest firmly against adjacent blocks, are stable, and form a smooth and uniform tread surface. Blocks designed to be interlocked must be interconnected. Bury beginning and ending blocks at a 30° angle to the tread.

After approval of the grid block installation by COR, place and compact suitable material into holes between and around grid pavement units.

Trail Specifications 913.40, 991 Use concrete grid pavement units with minimum compressive strength of 4495 lbs/in2 that meet the

NCMA A-15-82:

Specifications for Grid Pavers.

100% compliance with USFS Standard Specifications for Construction and Maintenance of Trails

AS Provided in

TO

In accordance with USFS Standard Specifications for Construction and Maintenance of Trails

91318

Riprap Surfacing

Construct riprap surfacing as as SHOWN ON THE PLANS. This work consists of construction of riprap surfacing, including excavation, furnishing, hauling, and placing rock and aggregate, compacting surfacing, and associated barriers, ditches, retaining walls, and approach sections.

Excess haul rate is added separately (Pay Item 91303.9) for every ¼ mile additional haul past the first ½ mile.

Trail Specifications 913.50.

Gradation/quality meets ODOT Standards for rock materials placement in accordance with culvert typical and

TO.

In accordance with ODOT Standards accepted industry practice 100%

ODOT specification 703.19

AS Provided in

TO.

Certification of Quality of rock

- one sample per lot from supplier

Verification of weight ticket and visual inspection on the ground for gradation and quality of rock.

CRITICAL

SUB-TASKS

QUALITY

STANDARDS AQL RELATED

DRAWING

MONITOR

METHOD

91805

Separation Geotextile

Provide and place separation geotextile meeting requirements of EM-7720-100 table

714.2 Type II-C as per manufactures

specifications.

Where SHOWN ON THE PLANS, place geosynthetics flat and parallel to centerline of the trail before placing embankment. Overlap geosynthetics a minimum of 24 inches. Install anchors or fasteners as recommended by the geosynthetic manufacturer.

Trail Specifications 911.10.08, 913.80

FP 714

Approved supplier requirements

Material is placed and a minimum thickness of 8” of aggregate or aggregate/ soil is placed over the full required width of the geotextile. The base is prepared as per manufacturers requirements and accepted by COR Equipment shall not displace geotextile during placement of soil.

N/A Visual – material certifications from supplier stating that the product meets or exceeds the requirements.

Drainage Structures

92101

Culvert, Corrugated Polyethylene Pipe

Replace culvert where indicated on TO with 18” or 24” diameter corrugated polyethylene (double wall pipe) with smooth interior wall.

Place culverts to provide for unobstructed inlet and outlet flow. Remove logs, debris, soil, rock, and other obstructions above and below the culvert that would impede flow into the culvert or away from the trailway.

Minimize disturbance to streambeds.

Construct a catch basin to facilitate flow from trail ditches into the culvert.

Trail Specifications 921.00, 921.10

ODOT 707.33

corrugated polyethylene double wall pipe with smooth interior wall

100% compliance with USFS Standard Specifications for Construction and Maintenance of Trails

WNF-5

STD-921-10-01

In accordance with USFS Standard Specifications for Construction and Maintenance of Trails

92112

Bottomless Arch Culvert

Install culvert where directed on TO - StormTech DC-780 or SC-740 Chamber, 51.0" W x 30.0" H or similar chamber that meets specifications.

This work consists of furnishing and installing bottomless arch culverts, including excavation and backfill, selecting and hauling of log and rock materials for headwalls, and constructing catch basins.

Trail Specifications 921.00, 921.60 SPS Section 921

ASTM F2787 &

ASTM F2418

100% compliance with USFS Standard Specifications for Construction and Maintenance of Trails

WNF-5

STD-921-10-01

In accordance with USFS Standard Specifications for Construction and Maintenance of Trails

CRITICAL

SUB-TASKS

QUALITY

STANDARDS AQL RELATED

DRAWING

MONITOR

METHOD

92115

Culvert Maintenance

Clean culvert to maintain free flow, a minimum of 90% of the culvert barrel must be free of debris after cleaning.

Trail Specifications 921.70

90% clear and free flowing to maximum attainable flow.

WNF-5 Visual random sample

92501

Construct ditches

This work consists of construction and maintenance of ditches, including excavation and backfill. Construct ditches to drain dips, trail surface and culverts. Construct trail side ditches and leadoff ditches where needed and as listed in TO to direct water flow in an environmentally sound manner. Average depth 1-2 feet and with 2:1 or flatter side slopes.

Trail Specifications 911.10.07, 925 Effective ditch that will drain said structure. The side slopes will be stable and sloped to prevent failure.

100% constructed to achieve drainage and maintain stability of soil slope (Max 2H:

1V).

WNF-T-1

STD-925-01

Visual

92504

Ditch Maintenance

Clean deposited material and restore ditches as SHOWN ON THE PLANS. Remove all debris from the lead-off ditches that restricts the free flow of water away from the trail.

Clean ditches to permit the free flow of water into culverts and away from the trail.

Scatter all unusable or unneeded material that is cleared from the drainage structures 3 feet or more beyond and below the trail or drainage facility and out of water courses.

Trail Specifications 925.30

Effective ditch that will drain said structure. The side slopes will be stable and sloped to prevent failure.

100% constructed to achieve drainage and maintain stability of soil slope (Max 2H:

1V).

WNF-T-1

STD-925-01

Visual

92701

Drain Dip

This work consists of constructing drain dips and associated drainage ditches, including excavation and backfill. Install drainage dip in locations as directed by TO. This item will be used for construction of new dips in new locations to prevent surface from being damaged by water flow. Compact backside as shown in drawings.

Trail Specifications 911.30.09, 927.10

Install as per typical

100% install to typical

WNF-T-4

Visual/ drivability

Restriction Devices

94101

Rail Fence

Construct a two-rail wooden fence as specified in the TO.

Trail Specifications 941.00, 941.20

100% STD-941-20-01 Visual 100% and testing if spelled out in TO

94201

Install government provided gates

Install gates including markers, hardware, gate posts; type of gate and location to be specified in the TO.

Trail Specifications 942.20

100% Produced at time of TO

WNF-6

Visual 100% and testing if spelled out in TO

CRITICAL

SUB-TASKS

QUALITY

STANDARDS AQL RELATED

DRAWING

MONITOR

METHOD

Trail Bridges

96607

Trail Bridge Maintenance, Site Cleaning

Maintain bridge approach, deck, and waterway under bridge. Clean all debris off deck and under deck to clear waterway to original shape. Do not dispose of debris in stream or upstream of crossing. Debris will placed where designated in TO and be spread to blend into terrain.

Trail Specifications

Structure is clear of debris and blockage.

95% of available drainage area is open.

N/A Visual

Incidentals

98101

Seeding and Mulching

Seeding and mulching disturbed sites to ensure good germination and ground cover to protect the soil resource. Seeding will be done no more than 14 days after site has been completed.

Trail Specifications and Wayne NF Seed Specifications

At least 95% of the area needing seed and mulch is covered with the required quantity and in a manner to assure germination.

Per specification 625 in EM- 7720-100 Forest Service Specifications for Construction of Roads and Bridges.

Visual and with material certifications for seed and straw mulch.

98202

Silt Fence/straw bale structure

Furnish and install 36” staked silt fence or staked straw bale sediment structure as shown in drawings.

FP 713.16

Structure is stable, will withstand heavy rainfall/flow and will collect sediment as required

Meets the intent of the structure and is constructed as shown in the drawings – 95%

WNF-T-7 Visual inspection

98901

Loading, unloading, or transport of government-furnished materials

Load, unload, or transport government-furnished materials to trailhead or on trail with equipment approved by COR.

OSHA, Industry practice, and FS fire suppression provisions.

Reasonable production for the task

N/A Visual 100% by FS inspector while work is being done.

INCENTIVE TO MEET CONTRACT REQUIREMENTS: If the contractor completes each Option Year’s Task Order’s work on time and with less than or equal to two re-workings at a site, then the WNF will recommend and exercise award of another Option Year of the IDIQ contract.