Appendix 1 Project Specs_Margaret VS Toilet Rplcmt_02282022 cj.pdf

PROJECT SPECIFICATIONS

SECTION 013300 SUBMITTALS

PART 1 – GENERAL

Provide submittals for the vault toilets in a timely manner to ensure sufficient time to complete all required reviews prior to required construction window. Allow 10 workdays for review. If a submittal is rejected, a resubmittal is required, and the time for review is restarted.

PART 2 – PRODUCTS – Not Used

PART 3 – EXECUTION

A. Provide manufacturer’s installation instructions and specifications and manufacturer’s completed cost worksheet and order form showing all options, colors, etc. to obtain approval prior to ordering the unit.

B. Provide manufacturer’s operations and maintenance manual.

C. All submittals shall be in electronic PDF format.

END OF SECTION

SECTION 017113 MOBILIZATION

PART 1 – GENERAL

A. DESCRIPTION – 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. Mobilization includes the costs associated with obtaining permits, insurance, and bonds. Mobilization is not intended to pay for the costs of materials before they are used on the project site.

B. PAYMENT. Pay for the accepted work at the contract unit price for the PAY ITEM shown in

THE SCHEDULE OF ITEMS.

Make progress payments for mobilization as follows:

1. Reimburse for bond premiums before issuing the Notice to Proceed if evidence of payment is received.

2. When 5 percent or more of the original contract amount is earned from other PAY

ITEMS, pay mobilization at the rate of 50 percent, or up to 5 percent of the original contract amount, whichever is less.

3. When 10 percent or more of the original contract amount is earned from other PAY ITEMS, pay mobilization at the rate of 100 percent, or up to 10 percent of the original contract amount, whichever is less.

4. Pay any unpaid amount for mobilization upon final acceptance of all work items.

PART 2 – PRODUCTS – Not Used

PART 3 – EXECUTION – Not Used

SECTION 024100 DEMOLITION

This section includes demolition of the existing toilet buildings.

PART 2 – PRODUCTS – Not used.

PART 3 – EXECUTION

A. For each structure, completely remove the building, including walls, roof, plates and hardware, fixtures, and everything installed above ground surface.

B. Salvage toilet building doors from both structures. Protect from damage. Transport and deliver to USFS Ketchikan Misty Fjords District Office at 3031 Tongass Avenue, Ketchikan, AK. Coordinate with CO to schedule delivery.

C. Uncover and remove drainpipe extending from rear of structure into gravel drain field to extent practicable.

D. Wood materials not treated with preservatives or similar toxic substances may be transported to an approved location within 1.75 miles of the work sites and burned. Remove all metal fasteners prior to burning for disposal offsite.

E. Burn only during weather and ground conditions that will prevent spread of fire, and ensure fire is extinguished when work is complete.

F. During cleanup of burn site, gather and dispose of offsite any remaining metal fasteners and all unburned wood materials greater than 2” in diameter.

G. Dispose of all preservative-treated wood and non-wood materials off Forest Service land in accordance with local, state, and federal laws, rules, and regulations.

SECTION 033000 CAST-IN-PLACE CONCRETE

1.01 DESCRIPTION

A. Work includes supplying and installing cast-in-place concrete, including formwork and reinforcement, for Sloped Concrete Transition.

1.03 QUALITY ASSURANCE

A. Perform work in accordance with ACI 301.

PART 2 – PRODUCTS

2.01 MATERIALS

A. Form Facing Materials. Suitable material of sufficient size and strength, straight and free of defects.

B. Welded Wire Fabric. As specified in the Drawings.

C. Suitable material for Expansion Joint where specified in the Drawings.

D. Provide a High Strength pre-blended mixture of cement and aggregates requiring only the addition of water that meets the requirements of ASTM C387. Provide one of the following specific products or approved equal:

1. Sakrete High Strength Concrete.

2. Quickrete Concrete Mix Product No. 1101.

E. Water: Provide potable water for mixing, meeting the requirements of ASTM C 94/C 94M or as approved.

F. Form Release Agent: Colorless material which will not stain concrete, absorb moisture or impair natural bonding or color characteristics of coating intended for use on concrete;

Release #1, or Crystal Release as manufactured by Burke Concrete Accessories or approved equal.

2.02 CONCRETE MIX

A. Temperature Limits for Cold Weather Concrete. Provide concrete having a minimum temperature of 50ºF and a maximum temperature of 90ºF at the time of placing. Do not use materials containing frost or icy lumps.

PART 3 – EXECUTION

3.01 MIXING. Mix per manufacturer’s requirements.

3.02 MIX ADJUSTMENTS. Mix adjustments may be used in accordance with manufacturer’s requirements.

3.03 FORM PLACEMENT

A. Place concrete forms on suitable compacted backfill material in such a manner to obtain a stable, level, and accurately located footing. Provide backfill materials as specified in Section 312300, Part 2, B.

3.04 CONCRETE REINFORCEMENT

A. Provide Welded Wire Fabric (WWF) as specified in the Drawings.

B. Reinforcing shall be supported and secured in place prior to concrete placement using well-cured concrete blocks or approved plastic chairs. Provide minimum cover as shown in the Drawings.

3.05 CONCRETE PLACEMENT

A. Notify CO a minimum of 24 hours prior to placement.

B. Convey concrete from a mixer to the forms as near final position as practical in a manner which will prevent segregation or loss of materials.

C. Immediately after placing, thoroughly hand tamp or "spud” concrete.

D. Place in a continuous operation.

E. Do not place concrete in water or allow water to rise over freshly placed concrete until a set is sufficient to prevent damage.

F. Dispose of waste concrete in approved locations only.

3.06 FINISH

A. Broom Finish: Immediately after concrete has received a floated finish; give the concrete a course transverse scored texture by drawing a stiff broom across the surface.

3.07 PROTECTION FROM RAINFALL. Protect flat work during periods of precipitation with adequate waterproof covering. Support covering so that finishing may be performed and initial set obtained without damage. Dragging of tarpaulins or other covering across unset concrete shall not be permitted.

3.08 CURING. Cure per manufacturer’s requirements.

3.09 COLD WEATHER CONCRETE CURING. When descending air temperature at the project falls below 40ºF the Contractor may at their option, continue concreting under conditions stated below. Normal concreting operations may resume when the temperature at the site exceeds 40ºF.

A. Provide cover and heating equipment sufficient to maintain the temperature of the concrete at not less than 50ºF for a period of 3 days for Type I and Type II cement. Maintain the temperature at not less than 50ºF for a period of 2 days for Type III cement or when one additional sack of Type I or Type II cement is added.

B. Provide additional protection to prevent the concrete temperature from dropping below 40ºF in the 24-hour period following the required protection period.

C. Keep all surfaces of concrete and any forms remaining on concrete wet. Remove and replace any concrete injured by frost and freezing as directed by the CO.

3.10 FIELD QUALITY CONTROL

A. Submit a Quality Assurance Quality Control (QAQC) report to the CO for each batch of concrete mixed onsite, stating at minimum the following:

1. Measurements of sand, cement, air entrainment, water, and admixtures if any.

SECTION 034800 PRECAST CONCRETE VAULT TOILET

This work includes furnishing and installing pre-manufactured vault toilet structures.

PART 2 – PRODUCTS

Furnish two vault toilets as manufactured by one of the following, or other manufacturer as approved:

A. CXT Inc, 3808 N. Sullivan Road, Bldg. 7, Spokane, WA 99216, Ph (509) 921-8766;

www.cxtinc.com as follows:

1. Model to be “Rocky Mountain” Single Vault Restroom, left hand building.

2. Provide 2-tone color package of “Nuss Brown” walls and “Granite Rock” roof.

3. Roof to be “Cedar Shake” pattern, color: “Granite Rock”.

4. Top section of building to be “Horizontal Lap”, color: “Nuss Brown”.

5. Bottom Section of Building to be “Napa Valley Stone”, color: “Natural Grey”.

6. Provide 2-tone paint touch-up kit option.

7. Provide the marine package option.

8. Door opener to be double pull/slide lock.

9. Provide “Raised Wet Hatch” option.

B. Missoula Concrete Construction, P.O. Box 16086 Missoula, MT 59808, Ph (406) 549-9682;

www.vaultconcretetoilets.net as follows:

1. Model to be “Aspen” Single Vault Restroom, left hand building, full screen.

2. Exterior wall texture: “Everlog”, color: “Medium Brown”.

3. Provide paint touch-up kit option.

4. Provide corrosive environment package (stainless steel fittings and FRP door).

5. Provide taller cleanouts (similar to CXT’s “Raised Hatch” option).

6. Provide attached liner inside the vault.

7. Coat exterior of vault with Tamoseal.

PART 3 – EXECUTION

A. GENERAL

1. Locate and orient building as detailed and shown on plans.

2. Follow manufacturer’s installation instructions including all recommendations.

3. Carefully lay out, cut, fit together and erect all work.

4. Install pre-manufactured equipment per manufacturer’s printed instructions and drawings.

http://www.cxtinc.com/buildings-rockymountain.html https://www.vaultconcretetoilets.net/

5. Deliver to CO all documentation associated with, or required for submittal in future claims against, manufacturer’s warranties.

SECTION 311100 CLEARING AND GRUBBING

This section specifies clearing, grubbing, removing, and disposing of all vegetation and debris within the clearing limits.

PART 2 – PRODUCTS – Not Used

PART 3 – EXECUTION

A. SAFETY. Follow Occupational Safety and Health Administration (OSHA) rules for

Trenching and Excavation Safety.

B. SURFACE PREPARATION

1. Clear all trees, brush, and other objects within clearing limits not designated to remain.

Clearing limits are 24 inches from the edge of the top of vault excavation and 12 inches from the edge of the gravel access ramp unless noted otherwise in drawings or approved otherwise by CO.

2. Do not remove any trees or other vegetative material outside the clearing limits without approval.

3. Do not operate or store equipment or materials within the drip line of live trees designated to remain.

4. Grub stumps and roots within the excavation limits of the toilet vault.

C. DEBRIS DISPOSAL

1. Dispose of all clearing and grubbing debris in approved locations to be determined within approx. 0.5 mile of the project site.

SECTION 312300 EXCAVATION AND EMBANKMENT

This work shall consist of excavation, provision of gravel, and shaping of earth, rock, and gravel necessary for the completion of construction. Work includes excavation of unsuitable material, construction of approach ramp embankment and gravel access routes, excavation for the toilet vault, and disposal of excavated material. Work also includes supply and delivery of 10 cy of D- 1 aggregate for stockpile in an approved location near the USFS administrative cabin.

Archaeological monitoring is required during excavation for the USFS administration cabin toilet site only. See details in this Section, Part 3, A.

PART 2 – PRODUCTS

A. Unclassified Borrow. 12 inch maximum particle size. Soil classification (AASHTO M 145):

A-1, A-3, or A-2-4.

1. GOVERNMENT FURNISHED MATERIALS: 4” diameter crushed rock material available at rock pit located along RD 8040000 for use as Unclassified Borrow as needed.

B. D-1 Aggregate. State of Alaska Department of Transportation and Public Facilities Standard Specifications for Highway Construction, Section 703 – Aggregates, Gradation D-1 from Table 703-2. (3/4” inch minus) – use for:

1. Base course for sloped concrete transition.

2. Leveling course for vault bottom (6 inches depth).

3. Backfill around vault, within 6 inches of exterior vault walls.

4. Gravel access ramp surfacing.

5. Aggregate stockpile at location designated by CO near the USFS administrative cabin.

PART 3 – EXECUTION

A. ARCHAEOLOGICAL MONITORING

1. The Forest Service will provide an archaeologist to monitor excavation at the administration cabin toilet site. Do not perform earth moving activities in the absence of the monitor unless directed otherwise by CO. Contractor shall work with the monitor and coordinate their access to the excavation site to facilitate performance of their duties including the following:

a. Site photos before, during and after excavation, including photos displaying soil stratigraphy.

b. Collection of soil samples at various times during excavation; two samples minimum, additional samples as required.

c. Contractor may be required by CO to pause work at the discretion of the monitor while soil samples are inspected onsite by the monitor.

2. Prior to start of excavation at the administration cabin toilet location, meet on site with

CO (COR) and USFS-provided archaeologist to review requirements and plan the work.

B. EXCAVATION

1. Conserve topsoil for placement on embankments and fill areas where necessary to reduce erosion.

2. Excavate as required to accommodate the new construction. See SECTION C below for construction layout instructions.

3. Subsurface conditions are not well characterized, and bedrock may be encountered. This contract assumes bedrock is not present. If bedrock is encountered, notify CO to discuss government’s preference: shift building to avoid bedrock, or remove rock to depth as required.

4. Excavate material as required by the toilet vault manufacturer.

5. Conserve suitable excavated material (unclassified borrow) to backfill around perimeter of D-1 material installed against vault wall. Dispose of unsuitable and excess excavated material in approved locations to be determined within approx. 0.5 mile of the project site.

6. At the completion of work, grade to a neat appearance.

C. PREPARATION OF SUBGRADE

1. Prior to placement of any materials specified under this section, the subgrade shall be prepared by dressing, shaping, wetting or drying and compacting. Compacted subgrades require approval by the CO before proceeding.

2. Prepare subgrade under vault toilet as recommended by the manufacturer.

3. Any ruts or soft yielding spots that may appear under the gravel access ramp shall be corrected by loosening and removing unsatisfactory material and adding Base Course material as required, reshaping and recompacting the affected areas to the lines and grades indicated on the plans.

D. EMBANKMENT

1. Place in 8 inch (maximum) loose lifts.

2. Uniformly grade areas within all work areas and establish natural transitions to adjacent undisturbed surfaces. Finish surfaces free from irregularities and abrupt changes in grade.

3. Grade areas adjacent to vault toilet and gravel access ramp to drain away and to prevent ponding. Maximum fill slope is 3H:1V. 2H:1V is acceptable where 3:1 will not catch existing ground.

E. COMPACTION

1. Moisten or dry aggregate to uniform moisture content suitable for compaction.

2. Compact under vault bottom and around vault sides as recommended by the manufacturer.

3. Compact the gravel access ramp with three passes of a whacker type mechanical compactor or until visible deformation ceases. The finished grade of the compacted aggregate shall not vary more than ½ inch. The compacted thickness shall not be consistently above or below the specified thickness.

4. Aggregate finishing for gravel access ramp: After compaction, water the aggregate surface thoroughly until fines have completely settled from the surface. Then remove loose aggregate and dispose of by scattering over gravel pad/spur shoulder. Add or remove aggregate material as necessary to achieve specified slopes and grades, and to provide a firm and stable surface.

SECTION 312300 EXCAVATION AND EMBANKMENT