Attachment_2_-_SOW_Clear_Crk_Paving_Specifications.pdf

1 Attachment 2 – 12414619R0003

STATEMENT OF WORK

FOR

Bankhead National Forest

Clear Creek Campground Asphalt

Trail Paving

National Forests in Alabama

PREPARED BY: JEREMY GILL

May 8, 2019

2 Attachment 2 – 12414619R0003

TABLE OF CONTENTS

SECTION PAGE

STATEMENT OF WORK

BACKGROUND INFORMATION

SCHEDULE OF WORK

WORK REQUIREMENTS

PROJECT REQUIREMENTS

SPECIFICATIONS

CAMPGROUND LOCATION MAP

CAMPGROUND LAYOUT

CLEAR CREEK BIKE TRAIL TYPICAL

CLEAR CREEK WALKING TRAIL

STANDARD TRAIL TERMS TYPICAL

TYPICAL CROSS SECTION & SLOPE FINISH

CLEARING LIMITS TREES & LOGS

CLEARING LIMITS BRUSHING TYPICAL

HARDENED SURFACE TYPICAL

SEEDING, FERTILIZING, & MULCHING TYPICAL

3 Attachment 2 – 12414619R0003

USDA Forest Service

STATEMENT OF WORK

Bankhead National Forest Clear Creek Campground Asphalt Trail Paving

SCOPE OF WORK:

The Contractor shall, at its expense, pay all Federal, State, County, and Municipal fees applicable to the performance of the work. Furnish all materials, labor, equipment, transportation and permits necessary to the performance of the work specified below on the National Forest in Alabama, Bankhead National Forest, Clear

Creek Campground.

The Forest Service is requesting quotes for the removal of existing asphalt pavement, brush cutting, clearing, root removal, seeding and mulching, excavation, placement of 825B aggregate base, and the placement of new hot mix asphalt (HMA) on two trails at the Clear Creek Campground. There are two trails, a biking and a beach walking trail. The beach walking trail will be widened from 4 feet to 6 feet. The Contractor is advised to make site visits prior to submitting quotes.

BACKGROUND INFORMATION:

The Clear Creek Campground is located on the Bankhead National Forests on Lewis Smith Lake.

One of the recreation features of the Clear Creek Campground is a 0.85 mile long by 6 feet wide asphalt bike trail. There are two wooden trail bridges and one culvert located along the bike trail. Another recreation feature of the Clear Creek Campground is a 0.70 mile long by 4 feet wide asphalt beach walking trail. Included in the beach walking trail are approximately 20 asphalt paved walkways ranging from 3 feet to 10 feet wide, and 52 walking spurs, approximately 3 feet wide. The total length of the walkways and spurs is 0.82 miles. There are two accessible walking spurs to access picnic sites 29 and

32. Accessible grades, widths, and cross slopes must be maintained.

SCHEDULE OF WORK:

The duration of the project shall be 30 calendar days from the Notice to Proceed.

4 Attachment 2 – 12414619R0003

WORK REQUIREMENT:

The intent of these specifications is not to provide all technical requirements, but instead to provide general job requirements such that all prospective bidders will be able to make proposals to the

Government. This will also enable the Government to readily evaluate and compare proposals. It is expected the successful vendor shall perform the job in accordance with all specifications. This contract will follow the USDA U.S Customary Standard Specifications for Construction of Trails and

Trail Bridges on Forest Service Projects. The contractor shall supply all materials, equipment and labor necessary to complete this project unless otherwise specified herein.

For additional information, please contact Jeremy Gill, at (334)-241-8161.

Attachment 2 – 12414619R0003

USDA Forest Service

PROJECT REQUIREMENTS

DIVISION 100 - GENERAL SPECIFICATIONS

110 – Scope of Contracts Provide all equipment, labor, materials, tools and other incidentals to execute all work necessary to perform the required asphalt removal and placement of new hot mix asphalt (HMA) on the Bankhead National Forest. The work on the Clear Creek Campground consists of removal and disposal of existing asphalt to be disposed of off National Forest Lands, brush cutting, clearing, root removal, seeding and mulching, placement of 825B aggregate base, and placement of hot mix asphalt on the existing bike trail and beach trail. This Contract follows the USDA U.S. Customary Standard Specifications for Construction of Trails and Trail Bridges on Forest Service Projects.

120 – Location and Description of Work

All work to be accomplished is located on the Bankhead National Forest. A detailed map showing the specific location of the Clear Creek Campground and trails may be reviewed by prospective bidders in the Statement of Work on page 12.

130 – Schedule of Work The duration of the project shall be 30 calendar days.

140 Equipment Requirements and Transportation All equipment proposed to be used for of the work shall be of the size, type, and in such condition to accomplish the requirements of this contract.

150 Public and Traffic Control

The contractor shall post signs in accordance with the MUTCD in project construction areas to restrict access. The contractor shall also maintain signs and traffic control devices for the duration of the project.

160 Submittal Contractor shall submit As-Built drawings of both trails within 14 days after the completion of the project. Include in the As-Built drawings all spurs, walkways, and trail bridges. Provide 3

(11"x17") hard copies, and an electronic copy in AutoCad Civil 3D2 016 or newer. Electronic submittal shall be flash drive or other approved method. As-Built drawings are considered incidental to other work. Contractor shall also submit an erosion control plan to the COR for acceptance at least 7 days prior to construction.

PROJECT SPECIFICATIONS

Item 906.01

Measurement and Payment - Measurement and payment for contract work will be made only for and under those pay items included in the Schedule of Items. All other work and materials will be considered incidental and included in payment of the Pay Items in the Schedule of Items.

Pay Item 907.01 Mobilization – Includes the transportation of all personnel, equipment, materials, and incidentals necessary to perform all work to complete this project. Payment for this pay item shall be according to U.S. Customary Standard Specifications for Construction of Trails and Trail Bridges on Forest Service Projects, section 907.02, Payment. Staging areas for the project will be the parking area between the two trails.

Activity: Method of Measurement: Measurement for this activity will be Lump Sum. Payment shall be made after all work under this pay item has been accomplished.

Pay Item 908.01

Construction Staking and Cleanup – The Contractor will set initial construction stakes and control points. These stakes constitute the field control. Furnish and maintain additional stakes for marking and maintaining points and lines established. Do not perform work in the absence of control points. Remove all construction stakes from the project area within 7 days after final inspection of all work on the project. Dispose of all stakes off Government administered lands.

Pay Item 911.30.07 Fill Material – Includes replacement of material loss due to embedded root removal. Compact material by using a roller or mechanical hand tamper until the density is at least 95 percent of the maximum density as determined by AASHTO T99, Method C or D. Suitable material shall be from a designated weed free source. Submittal to the COR for approval prior to placement.

Activity: Method of Measurement: Measurement for this activity will be Cubic Yards. Payment shall be made after submittal of material tickets and work under this pay item has been accomplished.

Item 912.10.02

Clearing Limits – Clear to the dimensions SHOWN ON THE PLANS. The clearing limit is 4 feet each side of centerline.

Item 912.60.03 Root Removal – Remove all exposed tree roots on or in the trail tread. For tree roots that are embedded, cut and remove down to a maximum depth of 6 inches. Legally remove and dispose all roots off of National Forest lands.

Pay Item 913.10

Aggregate Base, 825B - Includes all labor, equipment, material, hauling, watering, placement, and compaction of ALDOT 825B aggregate. Aggregate will be used for base prior to paving.

The thickness of the base material shall be 6 inches. Submit certification of material to the COR for approval at least 14 days prior to placement. Compact aggregate according to USDA Customary

Standard Specifications for Construction of Trails and Trail Bridges on Forest Service Projects, section 913.20.06, Spreading and Compacting. Compact material by using a roller or mechanical hand tamper until the density is at least 95 percent of the maximum density as determined by

AASHTO T99, Method C or D. Prior to paving, all loose aggregate, soil, or other deleterious material shall be removed from the surface to be paved. The contractor shall obtain approval of the base by the COR prior to paving.

Activity: Method of Measurement: Measurement for this activity will be made by the Ton.

Payment shall be made after the inspection and acceptance of work and collection of load tickets.

Pay Item 913.20

Hot Asphalt Plant Mix Trail Surfacing - Includes all labor, equipment, materials, hauling, placement, and compaction of asphalt. Compact asphalt according to U.S. Customary Standard

Specifications for Construction of Trails and Trail Bridges on Forest Service Projects, section

913.20.06, Placement and Compaction. Asphalt thickness shall be 3 inches. Adjust asphalt thickness to match the elevations on all existing approaches for a smooth transition on all trail bridge and ramp approaches throughout the trails. Adjustment of thickness is limited to approximately 15% on all approaches. Trail widths at bridge approaches widen to approximately

16 feet wide. The width of both trail bridges is 6 feet. The contractor shall submit a mix design to the COR for acceptance at least 14 days prior to paving. Use a mix design that is in use by the the Alabama Department of Transportation with an ESAL range of A/B and an aggregate gradation of a 3/8 inch maximum particle size. Submit a certificate of compliance that the mix meets requirements. Construct control joints in areas along the trail between asphalt and concrete AS

SHOWN ON THE DRAWINGS. Place tack coating to bind new asphalt with old asphalt in areas along the trail where existing asphalt will remain, such as when the trail intersects parking lots. The contractor shall submit haul tickets verifying quantities delivered to the project site.

Activity: Method of Measurement: Measurement for this activity will be made by the Ton.

Payment shall be made after the inspection and acceptance of work and collection of load tickets.

Item 913.20.03

Weather Limitations – Do not place the asphalt mixture when weather conditions prevent the proper compaction of the mixture, the base course is frozen, or the average temperature of the underlying surface upon which the asphalt mixture is to be placed is less than 55°F. Do not place when it is raining or snowing.

Item 913.20.55 Surface Preparation – Remove loose aggregate, soil, or other deleterious materials from the surface to be paved. Prepare the base or trailbed by shaping, watering, and compacting before placing plant mix. Obtain COR approval before placing plant mix on prepared base.

Item 913.20.06 Placement and Compaction - Place and compact plant mix to meet lines, grades, and thickness

SHOWN ON THE PLANS. Avoid segregation of mix. Hand or small machine placement of mix is permitted in areas where asphalt paving machines cannot be accessed. When using asphalt paving machines, use only self-contained, power-propelled paving machine units, provided with an adjustable activated screed or strike-off assembly, heated if necessary, and capable of spreading and finishing coarse of asphalt plant mix to the required widths and thickness.

Start compaction when the mix is above 230°F. Compact the mix with at least three passes over the entire trail surface. Use a steel wheel power roller that is of a minimum weight of 1 ton.

Use a steel wheel power roller that is of a minimum weight of 1 ton. Use vibratory plate compactors in areas that are not accessible to rollers. Continue compaction over the full width of the layer until visible deformation of the layer ceases.

Item 950.00.01 Signs and Markers – This work consists of furnishing and installing or maintaining signs and posts and associated materials and hardware. The Contractor shall reinstall or replace any signs or markers that are removed or damaged during construction. Place signs and markers in the exact locations that they were removed from at the same height.

Item 981.01 Seeding and Mulching – This work consists of preparing seedbeds and furnishing and placing required seed and mulch. The contractor shall seed all disturbed soil outside of the trail tread by hand or mechanical spread.

SEEDING RECOMMENDATIONS

In wildland areas where short-term erosion potential is low and native understory integrity is critical, a Native Warm Season Grass mix may be used during the following season.

Native Warm Season Grass Panting Dates:

April 1 – June 15

3 lbs Big bluestem or little bluestem and 2 lbs Yellow Indian grass or switchgrass Plus 15 lbs browntop millet for nurse crop Plant shallow (1/4” or less)

For general erosion control use the following default mixes by season (all rates are per acre):

February 1 – March 31

15 lbs partridge pea

*Moderate to high erosion potential: Add 10 lbs Annual Ryegrass (Lolium multiflorum) to mix.

April 1 – August 31

25 lbs brown top millet 20 lbs iron-clay cowpeas 10 lbs grain sorghum OR 3 lbs black oil sunflower

September 1 – November 30

50 lbs winter wheat

50 lbs oats

10 lbs crimson clover (inoculated) OR 2 lbs Ladino clover (inoculated)

December 1 to January 31

Use mulch at the recommended rate (see below).

On moderate to steep slopes or where erosion potential is high broadcast clean straw

(wheat, barley, or other grain) mulch at 2-3 inches deep over disturbed area (or one 74 pound bale per 800 square feet). On severe slopes secure mulch with punching, netting, or matting.

Seedbed preparation will involve harrowing, disking, or ripping on loading decks, haul roads, primary skid trails and other areas of compacted, exposed soils. Ripping to depth of 6 inches or greater maybe necessary due to soil compaction. The decision to select listed optional seed varieties is a Forest Service prerogative.

All plantings include 350 lbs of 13-13-13 fertilizer per acre (or rate equivalent) except Native Warm Season

Grass plantings.

Activity: Method of Measurement: Measurement for this activity will be made by the Acre.

Payment shall be made after the inspection and acceptance of work.

Pay Item 983.01

Removal of Structures and Obstructions – Work consists of removal and disposal of existing material within the trailway, above or below ground. The contractor shall remove and dispose all existing asphalt on both trails off of National Forest lands.

Activity: Method of Measurement: Measurement for this activity will be made by the Lump Sum.

Payments shall be made after the inspection and acceptance of work.