SOW West Loop campground rehab jul09z.doc

WEST LOOP CAMPSITE REHABILITATION

U.S. ARMY CORPS OF ENGINEERS

BLACKHAWK PARK

DE SOTO, WISCONSIN

1. SCOPE - This project consists of leveling dredged material and constructing eight (8) campsites, installing secondary electrical conductor and RV electric pedestal hookup boxes, planting thirty (30) trees and turf establishment by hydro-seeding in Blackhawk Park which is located three miles north of De Soto, Wisconsin. The work area limits are delineated in the attached drawing. Campsite construction shall be completed first and in accordance with appendix C-4 and C-6 (type 3) of EM 1110-1-400, 01 Nov 04, drawings attached. The contractor shall furnish all labor, equipment, and miscellaneous materials necessary to complete the work except crushed aggregate, black dirt and treated landscape timbers which are furnished by the Government. The contractor shall be responsible for locating any existing utilities prior to beginning work. It is recommended that contractors visit the site prior to submitting a bid.

2. SCHEDULE - The contractor shall provide a work schedule in writing or orally to the Blackhawk Park Manager at least 3 days prior to the start date. This schedule shall show the anticipated start and completion dates. The contractor shall also arrange a date for a pre-construction meeting to discuss the general prosecution of the work. The contractor shall have until May 15, 2010 to complete the work. Since this work is being performed in a recreation area no work may be performed on Fridays, Saturdays, Sundays or Holidays without permission of the Park Manager.

3. MATERIALS FURNISHED BY THE GOVERNMENT

3.1 Aggregate. Aggregate for this project is located onsite.

3.2 Black dirt. Black dirt for this project is located onsite.

3.3 Landscape timbers. Landscaping timbers for this project are located onsite.

4. MATERIALS FURNISHED BY THE CONTRACTOR

4.1 Electrical conductor shall be URD Aluminum rated for direct burial. The contractor shall furnish the following items (note that distances are approximate and shall be verified by potential bidders.)

For sites #66 thru #69 –

Approximately 120 feet of one set of 3 #250 MCM Aluminum conductors with #4 equipment ground conductor from North 400 amp Circuit Breaker disconnect panel, (connect to spare 200 amp circuit breaker) to pedestal 69.

Approximately 85 feet of one set of 3 #250 MCM Aluminum conductors with #4 equipment ground conductor between pedestals 69 and pedestal 68.

Approximately 85 feet of one set of 3 #250 MCM Aluminum conductors with #4 equipment ground conductor between pedestals 68 and pedestal 67.

Approximately 85 feet of one set of 3 #250 MCM Aluminum conductors with #4 equipment ground conductor between pedestals 67 and pedestal 66.

For sites # 70 thru #73 -

Approximately 120 feet of one set of 3 #250 MCM Aluminum conductors with #4 equipment ground conductor from South 400 amp Circuit Breaker Disconnect panel, (connect to spare 200 amp circuit breaker) to pedestal 73.

Approximately 85 feet of one set of 3 #250 MCM Aluminum conductors with #4 equipment ground conductor between pedestals 73 and pedestal 72.

Approximately 85 feet of one set of 3 #250 MCM Aluminum conductors with #4 equipment ground conductor between pedestals 72 and pedestal 71.

Approximately 150 feet of one set of 3 #250 MCM Aluminum conductors with #4 equipment ground conductor between pedestals 71 and pedestal 70.

4.2 Eight (8) electrical camper pedestal hookup boxes with 50/30/20 amp receptacles, Heritage #H75P3 or equal.

4.3 Wheel Stop. Furnish twelve (12) 8”x8”x8’ prefab concrete wheel stops.

4.4 Reinforcing bar. Furnish ¾” rebar two feet long to anchor wheel stops and each 10’ landscape timber in two places, approximately 288 pieces.

4.5 Ready-mix or pre-mixed bag concrete to anchor the campsite pedestal boxes.

4.6 Metal fasteners. Furnish “tie-plates” and nails to connect sections of timbers at butt joints on two sides.

4.7 Furnish twelve (12) silver maple (Acer saccarinum) trees, six (6) red maple (Acer rubrum), six (6) red oak (Quercus rubra) and six (6) hackberry (Celtis occidentalis). All trees shall be purchased from nursery stock, be symmetrically developed with straight stems or boles, be a minimum 2” DBH and balled and burlapped or potted.

4.8 All electrical materials and work described in this specification and drawings shall meet or exceed the most current version of National Electrical Code standards.

5. PREPARATION OF GROUND SURFACE Prior to placement of aggregate for campsites this work area shall be leveled to approximately eight (8) inches below the existing road.

6. CAMPSITES Six (6) back-in campsites will have a 14’x70’ spur, a 9’x20’ extra vehicle parking space and a 20’x20’ living area, and two (2) pull-through campsites will have a 14’x 150’ roadway and a living area 10’x 50’ as per the attached drawings. These two campsites will be located in the center of the work area with three back-in sites located on either end. Landscaping timbers shall be placed around the perimeter of six campsites and around the living area only on the two pull-through campsites and anchored with ¾” rebar in two spots per 10” section. Crushed aggregate shall be placed and compacted 8” thick on the vehicle spur and additional parking space and 4” thick on the living area.

To ensure compaction consistency, a vibratory plate or roller drum compactor shall be utilized. Finish elevation will match the existing circulation road at the site entrance. Wheel stops shall be installed near the end of the main parking spur and extra vehicle parking spot. The finished campsites will have a slight crown to allow for drainage off of the aggregate surface.

7. WORKMANSHIP

7.1 Sites 66-73: Two separate underground 4 conductor loop feed circuits shall be installed from two main disconnect panels to campsites #66-69 and campsites #70-73. Eight (8) pedestal hookup boxes shall be installed at the campsites and anchored according to the manufacturer’s installation instructions. Locations shall be confirmed with the POC prior to beginning work.

8. PREPARATION OF GROUND SURFACE FOR TURF ESTABLISHMENT Prior to placement of topsoil, grading and tilling, the work area shall be cleared of stones larger than 1 inch in diameter, roots, cable, wire, and other materials that could restrict growth or may hinder the work of subsequent maintenance.

8.1 Placing topsoil. Topsoil shall be placed and spread in four areas to provide a bed at least 6 inches in depth. The areas shall be sloped to ensure proper drainage. Surface irregularities resulting from topsoiling shall be leveled to prevent depressions.

8.2 Seedbed preparation. After the areas required to be seeded have been brought to grade, the soil shall be tilled with machinery to ensure proper dispersion of the topsoil to eliminate clumping of the soil and create a smooth surface.

8.3 Leveling. Surface irregularities resulting from tillage or other operations shall be leveled before seeding. The area shall be graded to a smooth surface and sloped properly to ensure proper drainage with a final elevation at or above 630.5’ msl. The Park Manager shall inspect the areas prior to hydro-seeding.

8.4. Seeding. Seeding shall be accomplished by hydro-seeding consisting of a mix of wood and paper mulch, fertilizer, tack and water. The seed mixture shall be distributed uniformly over the designated area at a rate of 250 pounds per acre. Seeding shall be completed between September 8th and 15th.

8.5 Seed. The grass seed mixtures to be used shall be as follows:

Common Name

Mixture % by Weight

Ken Blue Grass

Carefree Turf Type Tall Fescue

Salem Creeping Red Fescue

Vail Fine Leafed Perennial Rye

Affinity Fine Leaf Perennial Rye

Germination 90% or better and purity of 98% or better.

8.6 Fertilizer. Fertilizer shall be a start-up blend composed of 15% nitrogen, 35% phosphorous and 14% potash, or similar, suitable for establishment of turf and applied at the manufacturer's recommended rate. Fertilizer shall be mixed in the hydro-seeding at 25 lbs/12,000 sq’.

8.7. Mulch. Mulch shall consist of 70% wood fiber and 30% paper and a tacking agent.

9. WATERING. All areas shall be watered five (5) times within 10 days after the initial hydro-seeding application regardless of local precipitation. Water shall be applied at a rate sufficient enough to penetrate the seedbed to a minimum depth of 4 inches. Water shall be delivered through a system that will insure even distribution, such as by truck sprayer similar to type used for hydro-seeding. Watering shall be done in a manner that will prevent erosion, run-off, puddling or damage to the surface. Water may be pumped from the river but the potable park water system may not be used.

10. TREE INSTALLATION All trees shall be protected during delivery to prevent damage to root balls and/or desiccation of roots and leaves.

10.1. All trees shall be identified with durable, waterproof labels printed with weather-resistant ink. These labels shall remain on the plants after planting for easy identification.

10.2. Tree pits shall be dug two – three feet larger than the root ball diameter and back-filled with black dirt/top-soil and mixed 50/50 with the existing material. The top-soil shall be free from roots, stones and other materials that may hinder the growth of the plant including any toxic substances.

10.3. The trees shall be wrapped with a trunk wrapping material. The wrap shall be two thicknesses of crinkled paper cemented together with a layer of bituminous material. Wrapping material shall be a minimum of four inches in width and waterproof tape shall be used to bind wrapping to the tree.

10.4. Mulch shall be a good quality hardwood material free of weeds and put down around all tree and shrub plantings in a ring 4 feet in diameter to a depth of 3 inches.

10.5. All trees shall be staked with two guys, one placed to the SW and one to the NW to protect from the prevailing winds.

10.6. Within 24 hours of the completion of planting and mulching operations, the trees shall be given a thorough watering, fully saturating the entirety of the planting hole.

10.7. Final inspection will be held when work is complete. The contractor shall furnish a receipt from the nursery where the trees were purchased. The contractor shall guarantee trees for one full year from date of final acceptance; trees shall be alive in good health with flourishing growth at the end of the guarantee period. Any trees that are dead or not showing satisfactory growth shall be replaced as soon as conditions permit. After one year, dead or unsatisfactory trees shall be removed and replaced at the contractor’s expense and the new trees shall be guaranteed for one year. If replacements are required at the end of the second year, they will be planted at the contractor’s expense without further guarantee.

11. EVIRONMENTAL PROTECTION – The environmental resources within the project boundaries shall be protected during the entire period of this contract. Any damage to environmental features or appurtenant structures shall be repaired at no cost to the government. All areas including roads shall be returned to pre-construction conditions prior to leaving the worksite.

12. SAFETY - All work shall be performed in accordance with the Corps of Engineers Safety Manual EM 385-1-1, which will be provided by the Government. The contractor shall plan work so as to minimize interruption of normal traffic flow in the park, erect temporary work signing to alert the public and utilize flagger personnel if necessary. Campsites 40-65 shall remain open during the construction period.

13. PAYMENT - Payment of 80% of the total bill shall be made upon satisfactory completion of the work. The remainder of 20% shall be paid 3 weeks after satisfactory growth has been established.

Appendix A

Appendix B

Appendix C