WestGlacierSupSpecs_2016_0418.pdf

West Glacier Spur Road Area Enhancements Project

Supplemental Specifications

West Glacier Spur Road Area Enhancements Project

SPECIAL PROJECT SPECIFICATIONS

SECTION 009030—

INTENT OF THE CONTRACT

903.01 Intent. The intent is to provide for the completion of the project described in the contract. Furnish all labor, materials, equipment, tools, transportation, utilities, and supplies, and perform all work required to complete the project in accordance with drawings, specifications, and provisions of the contract.

SECTION 009040

MAINTENANCE FOR TRAFFIC

904.01 General. Before any suspension of work, take precautions necessary to prevent damage to the project, such as temporary detours, approaches, crossings, or intersections, and make provisions for normal drainage and to minimize erosion.

West Glacier Spur Road has several popular recreation sites and the contractor shall provide continued access to Skaters Cabin, Tolch Rock Trail, West Glacier Trail, and Mendenhall Lake access unless unsafe to do so.

Commercial use of West Glacier Trail and the beach area accessed by West Glacier Trailhead can be expected daily between April 1 and September 30, and the contractor should plan construction so as to minimally impact the commercial outfitters and guides, providing continued access to loading areas, beach areas, trail, and portable toilet facilities.

Road closures for work within the road prism should be scheduled outside of typical commercial use periods.

The contractor shall notify the USFS at least three business days ahead of any road or trail closures, to provide time to notify public via the media. The public shall be notified of any closures at the site at least 24 hours before closure takes place.

Provide effective, professional-appearing barriers to areas that are closed.

SECTION 009050

CONTROL OF MATERIALS

905.01 Handling Materials. Transport and handle all materials to preserve their quality and fitness for the work.

Stockpile, load, and transport aggregates in a manner that will preserve specified gradation and avoid contamination.

Store materials to assure the preservation of their quality and fitness for the work. Locate stored materials to facilitate their prompt inspection. Arrangements for storage on other than designated sites are the responsibility of the contractor.

SECTION 009060

MEASUREMENT AND PAYMENT

906.01 General. 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 the payment of the PAY ITEMS in the SCHEDULE OF ITEMS.

When more than one class, size, or thickness is specified in the SCHEDULE OF ITEMS for any PAY ITEM, suffixes will be added to the item number to differentiate between the items.

906.02 Units of Measurement. Payment will be made by units defined and determined according to standard measure and by the following:

(a) Each (EA). One complete unit, which may consist of one or more parts.

(b) Lump Sum (LSQ). The quantities that denote one complete unit of work as required by or described in the contract, including necessary materials, equipment, and labor to complete the job.

(c) Linear Feet (LF). Measurement in feet taken along the centerline of the trail and parallel to the finished grade.

(d) Square Feet (SF). Measurement taken by determining surface area.

906.03 Methods of Measurement. One of the following methods of measurement for determining final payment is DESIGNATED ON THE SCHEDULE OF ITEMS for each PAY ITEM:

(a) Designed Quantities. These quantities denote the final number of units to be paid for under the terms of the contract. They are based upon the original design data available prior to advertising the project. Original design data include the preliminary survey information, design assumptions, calculations, and drawings. Changes in the number of units DESIGNATED IN THE SCHEDULE OF ITEMS may be authorized under the following conditions:

(1) As a result of changes in the work approved by the CO.

(2) As a result of the CO determining that errors exist in the original design that cause a PAY ITEM quantity to change by 15 percent or more.

(3) As a result of the contractor submitting to the CO a written request showing evidence of errors in the original design that cause a PAY ITEM quantity to change by 15 percent or more. The evidence must be verifiable and consist of calculations, drawings, or other data that show how the designed quantity is believed to be in error.

(b) Actual Quantities (AQ). These quantities are determined from measurement of completed work or certified receipts.

(c) Lump Sum Quantities (LSQ). These quantities denote one complete unit of work as required by or described in the contract, including necessary materials, equipment, and labor to complete the job.

(d) Vehicle Quantities (VQ). These quantities are measured or weighed in hauling vehicles.

SECTION 009070

QUALITY ASSURANCE AND QUANTITY MEASUREMENT

Description

907.01 Work. Work consists of providing certification that the quality and quantity of construction conform to the drawings, specifications, and requirements of the contract.

Construction

907.02 Certification and Measurements

(a) Offsite-Produced Materials. Furnish signed certificates executed by the manufacturer, supplier, or vendor, stipulating that all offsite-produced materials incorporated in the work meet applicable requirements SHOWN ON THE DRAWINGS or stated in the specifications. Furnish a certificate for each commodity or invoice.

(b) Quantity Measurements. Submit quantities to the CO for periodic progress payments, and the CO will compute payments. Quantities are subject to verification.

SECTION 011110

MOBILIZATION

PART 1 - GENERAL

1.01 DESCRIPTION

A. 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.

1.02 PAYMENT

A. Pay for the accepted work at the contract unit price for the PAY ITEM shown in THE SCHEDULE OF

ITEMS.

B. 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.

END OF SECTION

SECTION 013300

SUBMITTALS

1.01 SUBMITTALS PROCEDURES:

A. Provide submittals in 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.

B. Submit all design submittals in electronic PDF format to the COR.

PART 2 – PRODUCTS

None

PART 3 – EXECUTION

3.01 MATERIAL SUBMITTALS

A. Provide manufacturer supplied cut sheets and installation submittals for all commercial items to include the waste and recycling containers, etc.

B. For the toilet, provide manufacturer’s installation instructions and specifications and manufacturer’s completed cost worksheet and order form showing all options, colors, etc. to verify the correct options for approval prior to ordering the unit.

C. For the toilet, provide manufacturer’s technical sheets and plans to the CO for approval before installation.

D. Provide submittal for concrete mix in conformance with Section 033000.

Provide certificates executed by the manufacturer, supplier, or vendor, stipulating that all commercial items, such as concrete mix design, meet applicable requirements shown on the drawings or stated in the specifications.

Submit technical sheets for the vault toilet to the CO for approval before acquisition of vault toilet.

3.02 WATER VALVE AND METER RELOCATION SUBMITTAL

A. Submit a detailed plan for the water valve and meter relocation.

B. Plan should comply with all City and Borough of Juneau requirements. Contractor to obtain approvals from CBJ.

C. Notify CO when design is complete. Do not proceed with construction until the CO grants written approval.

3.03 SIGN SUBMITTALS

A. Provide manufacturer-prepared scale illustrations for each sign for approval prior to fabrication.

SECTION 013310

CONSTRUCTION LAYOUT

PART 1 – GENERAL

1.01 SUMMARY

A. Section includes the layout of the project for construction. This work consists of establishing any staking and flagging needed in addition to existing staking, and removing and disposing of all construction stakes, tags, flagging, and plastic ribbon from the project area. This section specifies the work that will be staked by the Government.

PART 2 – PRODUCTS

None

PART 3 – EXECUTION

3.01 Project Layout

A. The Government will set initial control points and furnish the contractor with initial survey information.

The control points constitute the field control.

B. Furnish and maintain all additional stakes, flagging, templates, batter boards, and other materials and supplies necessary for marking and maintaining points and lines established. The COR shall approve contractor’s staking, flagging, control points, etc. before work proceeds in that area.

C. Do not perform work in the absence of approved construction staking or control points.

D. Relocate initial horizontal and vertical control points in conflict with construction to areas that will not be disturbed by construction operations. Furnish the coordinates and elevations for the relocated points before the initial points are disturbed. If construction stakes or control points are destroyed or displaced, replace as originally installed and notify the COR. If any construction stakes or control points are erroneous, notify the COR.

E. Provide all additional survey work necessary to lay out the work according to the plans and specifications.

F. Survey and mark the following features to an accuracy of .1 feet horizontal and vertical, where required.

Obtain written approval prior to proceeding with construction of the relevant work.

1. Skater’s Cabin and Tolch Rock Parking Lots

2. Water valve and meter box location

3. West Glacier SST slab and building location, and cut slopes

4. The location of all signs.

G. The Government will mark the locations of the following items:

1. The centerline of the multi-use trail, and the locations of the two trail bridges

2. The location of all Boulders, where noted on plans, including specifying size A, B, or C.

3. The centerline of view trail.

4. The location of garbage cans.

SECTION 014126

SOIL EROSION CONTROL

Conform to FP-03 Section 157 and the following Forest Service Supplemental Specifications:

157.01 Materials

Add the following:

Provide bales, wattles, logs and rolls from a certified noxious weed free source.

157.02 General.

Delete the first two paragraphs and replace with the following:

Submit an Erosion Control Plan detailing permanent and temporary control measures to minimize erosion and sedimentation during and after construction in accordance with the plans and storm water permits. Do not modify the type, size, or location of any control or practice without approval. Submit the erosion control plan proposal at least 7 days before operations begin to the CO for approval.

Reflect in the Erosion Control Plan special concerns and measures necessary to protect resources and government improvements. Include:

(a) The construction activities and sequence of implementation relating to specific erosion control measures.

(b) The location and type of permanent controls to be implemented during construction. Examples include but are not limited to settling pools, application and timing of seed and fertilizer, use of wattle and coir logs, and construction of ditch flow cross drains in proximity to flowing streams.

(c) The location and type of temporary controls to be implemented during construction.

(d) For work in stream channels describe level of ground and vegetative disturbance and measures to reduce potential sediment delivery.

Add the following to the third paragraph:

Upon completion of construction at the site, remove all temporary erosion control devices, dewatering materials and equipment from Government property.

157.03 Diversions.

Delete the first sentence and replace with the following:

When shown on the plans, construct temporary channels, temporary culverts, or sandbags to divert water around disturbed areas and slopes. Earthen dams are prohibited.

SECTION 033000

CAST-IN-PLACE CONCRETE

PART 1- GENERAL

1.1 DESCRIPTION

A. This section of the specifications covers the requirements for furnishing and installing cast-in-place concrete footings and slabs on grade, including formwork and reinforcement, in conjunction with notes as shown on Drawings.

1.2 REFERENCE SPECIFICATIONS

A. Standard Specifications for Construction of Roads and Bridges on Federal Highway Projects (FP – 03), Section 601 – Minor Concrete Structures.

B. American Concrete Institute (ACI) 301, Specifications for Structural Concrete, most recent edition.

C. International Building Code (IBC) - Chapter 19.

D. American Society for Testing and Materials (ASTM).

1.3 QUALITY ASSURANCE

A. Concrete shall be supplied by a commercial ready-mix firm.

B. Mix design and trip tickets shall be retained for files.

1.4 TESTING

A. Compressive Strength Tests:

1. Obtain samples and conduct tests in accordance with ACI 301 Section 1.6.4.

2. One (1) set of three (3) cylinders per set shall be molded and cured for testing for the concrete slab.

3. For each specified test: Cure one (1) cylinder for 28-day test age. Test one (1) cylinder at seven days, test two (2) cylinders at twenty-eight days, and hold one (1) cylinder in reserve as the CO directs.

After fifty-six days, unless notified by the CO to the contrary, the reserve cylinder may be discarded without being tested for specimens meeting 28-day strength requirement.

4. Acceptance. Strength is satisfactory when:

i. The average of all tests equal or exceed the specified strength

ii. No individual test falls below the specified strength by more than 500 psi.

iii. If strength is unsatisfactory, remove the unsatisfactory concrete and repeat the work until testing shows satisfactory strength.

B. Slump Test:

1. Obtain samples and conduct slump tests in accordance with ASTM C143/C143M. Take concrete samples during concrete placement. Perform test immediately prior to placement of each batch of concrete and when test cylinders are made.

C. Air-Entrainment Test:

1. Obtain samples and conduct air-entrainment tests in accordance with ASTM C173/C173M. Test for air content immediately prior to placement of each batch of concrete and when test cylinders are made.

PART 2 - MATERIALS

2.1 FORM MATERIALS

A. Conform to ACI 301 Section 2 - Formwork and Form Accessories.

B. Removal of Forms shall conform to ACI 301 Section 2.3.2 except strength indicated in ACI 301 Section

2.3.2.5 shall be 0.75 f’c.

C. Forms: Steel, wood, or other suitable material of size and strength to resist movement during concrete placement. Use straight forms, free of defects. Use flexible spring steel forms or laminated boards to form curved edges.

D. Sonotube round cast in place concrete column form as manufactured by Sonoco, 1 North Second Street, Hartsville, SC, 29550. 1-888-766-8823, www.sonotube.com.

2.2 REINFORCING BARS.

A. Furnish deformed, grade 60 bars conforming to AASHTO M 31.

2.3 WELDED WIRE FABRIC

A. Welded wire fabric shall conform to ASTM A 185. Provide flat sheets, rolls not acceptable.

2.4 CONCRETE MIXTURES

A. Conform to ACI 301 Section 4 - Concrete Mixtures.

B. All cast-in-place concrete mixes must conform to the following requirements:

Property Specification Cement content 611 pounds per cubic yard minimum

Water/cement ratio 0.45 maximum Slump 5 inches maximum

Air content 6% minimum

Size of coarse aggregate AASHTO M 43 with 100% passing the 1-1/2 inch sieve

28-day compressive strength 3,000 pounds per square inch minimum C. Mix Design Notes

1. Water Cement (W/C) ratio: Water-cementitious material ratios shall be based on the total weight of cementitious materials. Ratios not shown in the table above are controlled by strength requirements.

2. Cementitious content: The use of fly ash, other pozzolans, silica fume, or slag shall conform to ACI 301 Sec 4.2.2.8.B. Maximum amount of fly ash shall be 20% of total cementitious content unless approved.

3. Air content: Conform to ACI 301 Section 4.2.2.4. Horizontal exterior surfaces in contact with the soil require entrained air. Use “Severe Exposure.” Tolerance is ±1-½%. Air content shall be measured at point of placement.

4. Slump: Conform to ACI 301 Section 4.2.2.2. Slump shall be determined at point of placement.

5. Chloride Content: Conform to ACI 301 Section 4.4.1 and Table 4.1.1 for “Other Reinforced Concrete

Construction.”

6. Non-Chloride Accelerator: Non-chloride accelerating admixture may be used in concrete slabs placed at ambient temperatures below 50ºF at the Contractor’s option.

2.5 CONCRETE MATERIALS

A. Portland Cement: Portland cement shall conform to ASTM C150, Type I or Type II. The cement shall be of the same brand and type and from the same plant of manufacture.

B. Aggregate: Conform to ASTM C33. Aggregates shall be free from any substance that may be deleteriously reactive to the alkalis in the cement and in a sufficient amount to cause excessive expansion of the concrete.

C. Fly Ash: Pozzolanic mineral admixture conforming to ASTM C618, Class F. Maximum loss on ignition to be 1%. Use fly ash from one single source for the whole project. When fly ash is used, the maximum amount shall be 30% weight of the total cementitious materials, unless otherwise noted.

D. Admixtures: Use of admixtures shall be the responsibility of the Contractor. When more than one admixture is used in the mix, furnish satisfactory evidence to the CO that the admixtures to be used are compatible in combination with the cement and aggregates. Provide only one brand of each type of admixture. Accelerating admixtures shall not be used. Unless approved by the CO admixtures shall be free of calcium chloride and thiocynate (no more than 0.05% chloride ions). The following types of admixtures are approved:

1. Air-Entrainment Admixture: Master Builders “Micro-Air,” Grace “Davavair,” Sika “AEA-15,” or approved equal conforming to ASTM C260.

2. Water reducing Admixture (Low Range): Master Builders “Pozzolith 322-N,” Grace “WRDA with

Hycol,” Sika “Plastocrete 161,” or approved equal conforming to ASTM C494, Type A.

3. Water reducing Admixture (High Range): Master Builders “Rheobuild 1000,” Grace “WRDA-19,”

Sika “Sikament 86,” or approved equal conforming to ASTM C494, Type F.

2.6 ACCESSORIES

A. 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.

B. Polyurethane Joint Sealer, if used, shall conform to ASTM C 920.

PART 3 - EXECUTION

3.1 FOOTING EXCAVATION AND BEDDING

A. Excavate footings to depths as indicated on the Drawings and in conformance with requirements of

Section 312300.

B. Footing excavations require review and approval by the CO prior to construction of concrete formwork.

3.2 FORMWORK

A. Conform to requirements of ACI 301 Section 2 - Formwork and Form Accessories.

3.3 REINFORCEMENT BAR PLACEMENT

A. Conform to requirements of ACI 117. Lap ends of rebar a minimum of 40 times the bar diameter. Support rebar during placing of concrete to ensure required position in slab. Do not place rebar on subgrade and subsequently raise into position in concrete.

1. Conform to the following cover requirements from ACI 301, Table 3.3.2.3, unless noted otherwise on the drawings. Concrete cast against earth – three inches. Concrete exposed to earth or weather – two inches.

2. Field bending. Conform to ACI 301 Section 3.3.2.8 – Field Bending or Straightening. Bar sizes #3 through #5 may be field bent cold the first time. Other bars require preheating. Do not twist bars.

3.4 CONCRETE PLACEMENT

A. Preparation

1. Do not place concrete until the required submittals are approved.

2. Remove snow, ice, frost, water, and other foreign materials from form surfaces, reinforcement, and embedded items against which concrete is to be placed.

3. Place concrete on properly prepared and unfrozen subgrade and only in dewatered excavations and forms.

4. Do not allow mud or foreign materials into the concrete during placement operations.

5. Do not place concrete when the ambient temperature is below 40 °F or above 90 °F.

6. Do not begin placing concrete when the sun, heat, wind, or limitations of facilities furnished by the

Contractor prevent proper consolidation, finishing and curing.

7. Do not begin placing concrete while rain, sleet, or snow is falling unless adequate protection is provided. Do not allow rainwater to increase mixing water or to damage the surface of the concrete.

B. Installation of Embedded Items

1. Position and secure in place shelter post anchors, pedestal grill posts, and other structural and non-structural embedded items before placing concrete. Contractor shall coordinate placement of all embedded items shown on the Drawings.

C. Concrete Measuring, Mixing, and Delivery

1. Conform to requirements of ACI 301 - Section 4.3.

D. Handling, Placing, Constructing and Curing Concrete

1. Conform to requirements of ACI 301 – Section 5.

3.5 JOINTS

A. Contraction joints in slabs-on-grade: Form weakened-plane contraction joints. Form joints along the perimeter of the 6 inch-thick, slab portion of the foundation, within 1 inch of the change in slab thickness.

In addition, form joints which span from the midpoints of opposing perimeter joints, crossing through the center point of the slab, so as to section the slab surface into four rectangular-shaped quadrants of equal size. Construct contraction joints for a depth equal to one-fourth of concrete thickness as follows:

1. Grooved Joints: Form contraction joints after initial floating by grooving and finishing each edge of joint to a radius of 1/8 inch. Repeat grooving of contraction joints after applying surface finishes. Eliminate groover tool marks on concrete surfaces.

2. Sawed Joints: Form contraction joints with power saws equipped with shatterproof abrasive or diamond-rimmed blades. Cut 1/8-inch-wide joints into concrete when cutting action will not tear, abrade, or otherwise damage surface. Sawing must terminate a maximum of 12 hours after the pour for a particular slab commences.

3.6 FINISHES FOR UNFORMED SURFACES

A. General: Finish slab surfaces as described below. Finish all joints and edges with proper tools as approved.

B. Placement: Place concrete at a rate that allows spreading, straightedging, darbying or bullfloating before bleed water appears. Screed all slabs, topping fills to true levels and slopes. Work surfaces as required to produce specified finish. Do no finishing in areas where water accumulated; drain and re-screed. In no case use a sprinkling of cement and sand to absorb moisture.

C. Tolerances: Measure slabs-on-grade to verify compliance with the tolerance requirements of ACI 117 Section 4.5.7, Classification: Bullfloated. Measure floor finish tolerances within 72 hours after slab finishing.

D. 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. Degree of texture shall be as approved by the CO.

3.7 CONCRETE CURING

A. Conform to the requirements of ACI 301 – Section 5.

END SECTION

SECTION 101400

SIGNS

This work includes furnishing materials, labor and equipment necessary to install signs as shown in the drawings.

1.02 QUALITY ASSURANCE

A. Sign Manufacturer:

1. All signs shall be fabricated by a manufacturer which regularly engages in the manufacture of signs for the United States Department of Agriculture, Forest Service, such as Rockart Signs and Markers, ph: 480-854-3400, graphics@rockartsigns.com.

2. The manufacturer shall be familiar with the USDA "Forest Service Standards for Forest Service Signs and Posters", EM-7100-15, dated June 2012, and available online at:

http://fsweb.sdtdc.wo.fs.fed.us/pubs/em7100-15/documents/CompleteEM7100.pdf

If this link does not work, please contact the CO for a hardcopy or a new link.

PART 2 – PRODUCTS

2.01 SIGNS

A. Sign type, materials and size shall conform to the requirements of EM-7100-15, Standards for Forest Service Signs and Posters." Chapter 7 contains information regarding "Recreation Site Signing."

B. Signs shown in drawings are intended as a guideline. If discrepancies are found between signs shown in drawings and Forest Service EM-7100-15 standards, the EM-7100-15 standards shall apply.

C. Use of symbols should be consistent within an area. Do not mix older symbol styles from the 2003 Manual on Uniform Traffic Control Devices (MUTCD) with newer symbols shown in the 2009 MUTCD, rev. 1 & 2; use either all of one style or all of the other.

D. All hardware used to attach signs to wood or metal posts should be aluminum or galvanized metal.

E. Signs are to be mounted on wood posts to match other signs in the Skater’s Cabin and West Glacier

Trailhead areas.

F. Colors for USFS-specific signs are to be in accordance with the Mendenhall color scheme, from the

Federal Standard Color Chart 595B: Sky Blue 15200 and Gray Blue 35237.

PART 3 – EXECUTION

3.01

A. CLEARING/GRUBBING

1. Remove all trees and brush within clearing limits and dispose of in approved locations.

B. INSTALLATION

1. Install to dimensions shown in EM-7100-15, Chapter DD and Figure 3D-4 or 3D-5 as approved.

Suitable fill to be installed and compacted in 6” lifts. Provide thorough compaction for all aggregate as approved.

2. Seed topsoil around and below signs according to standards of Section 329000 – Topsoil and Seeding.

3. After a sign is installed, snip the ends of the bolts off and upset or fracture the threads to prevent removal of the nuts by vandals or thieves.

4. Attach installation-date labels (P64-10) to the back of all signs at the time of installation.

C. CLEAN-UP

1. Provide thorough cleanup of road and shoulder surfaces road surface at end of each work day. Provide through clean-up of entire work area at end of project.

3.02 SIGN SCHEDULE

A. Install signs per sign schedule where shown on the site plan and as staked.

SECTION 129300

SITE IMPROVEMENTS AND FURNISHINGS

PART 1 – GENERAL

1.01 SUMMARY

A. This Section includes manufactured benches, waste receptacles, and wheel stops.

PART 2 – PRODUCTS

A. Trash and Recycling Receptacles: As provided by: BearSaver., Ontario, CA , ph: 1-800-851-3887,. Provide

2 ea. Model BearSaver CE Series Single Trash Enclosure, CE132-CH, color: Light Grey, with Cold Spray Galvanizing. Order all with “TRASH” decal printed in standard locations offered by manufacturer.

B. Bike Racks: As provided by Park A Bike, Inc., Sacramento, CA, ph: 1-800-630-7225. Provide 14 ea. Hoop Runner HR100 2 Bike Below Ground Mount Bike Racks, Galvanized.

C. Wheel Stops: As provided by: Barco Products, Batavia, IL, ph: 1-800-338-2697. Provide 37 ea. Premium Rubber Wheel Stops, WS-01. Color: Gray for standard wheel stops; wheel stops for accessible parking stalls shall match the accessible parking signs.

PART 3 – EXECUTION

A. Trash and Recycling Receptacles: Install on a single concrete pad per manufacturer’s detail.

B. Bike Racks: Install per plans.

C. Wheel Stops: Install per manufacturer’s instructions for Rebar Method.

SECTION 133423

VAULT TOILET

A. This work consists of the supply and installation of a pre-manufactured vault toilet structure, including shipment to site, all work necessary to completely fabricate and erect, and all accessories needed or specified in this section for a complete SST Toilet Building with vaults.

1.02 RELATED WORK

A. Section 011300, Submittals B. Section 033000, Cast-in-Place Concrete

PART 2 – MATERIALS

2.01 CONCRETE

A. Concrete for approach ramp per Section 033000.

2.02 VAULT TOILET

A. Provide vault toilet as manufactured by Romtec, Inc., 18240 North Bank Rd., Roseburg, OR

97470; www.romtec.com as follows, or approved equal:

1. Model to be “6 Room Aspen Restroom,”.

2. Block: Grey Split Face Block.

3. Roof Extension: Breezeway Timber Truss

4. Roof System 2x6 T&G Decking with Clear Cedar Fascia

5. Roofing: Metro Roof Products, Metro Shake, Color: Weathered Timber

6. Skylight: 15”x46” Deck Mount

7. Door Frame: 7-3/4” Door Frame x 16ga Hollow Metal

8. Door: 20ga Honeycomb Core Steel

PART 3 – EXECUTION

3.01 GENERAL

A. Carefully lay out, cut, fit together and erect all work. Install pre-manufactured equipment per manufacturer’s printed instructions.

B. Locate and orient building as detailed and shown on the plans.

C. Install concrete approach ramp as shown in drawings and details.

3.02 DRAINAGE AND GRADING

A. Set the finished floor elevation of the structure to provide positive drainage in all directions consistent with ADA standards.

SECTION 311000

CLEARING AND GRUBBING

A. This work includes marking clearing limits, clearing, grubbing, trimming, and removing and disposing of timber, construction slash and debris. This work also includes preservation of vegetation and objects free from injury or defacement, except as indicated for removal.

1.2 RELATED WORK

A. Section 013310, Construction Layout B. Section 129300, Site Furnishings C. Section 312300, Excavation and Embankment D. Section 321500, Aggregate and Stone for Trails, Pathways, Pad

1.3 QUALITY ASSURANCE

A. Provide construction survey and layout control in conformance with Section 013310 to accurately establish the construction limits.

B. Flag construction limits for review and approval by the CO prior to beginning clearing and grubbing operations.

C. Conform to tree trimming standards of the International Society of Arboriculture.

1.4 MONUMENTS

A. Carefully maintain all benchmarks, monuments and reference points. If disturbed or destroyed, replace at no additional cost to the Government.

PART 2 - MATERIALS

Not Used

PART 3 - EXECUTION

3.1 CLEARING LIMITS FOR ROAD CONSTRUCTION

A. It is the Contractor's responsibility to establish exact clearing limits.

B. Nominal clearing limits: Toe of embankment or top of cut. Do not place debris or excavation against standing trees.

C. Clearing limit markings must be approved in writing prior to proceeding with clearing and grubbing.

D. Provide flagging at sufficient intervals (maximum 50 feet on center) to identify the edges of construction limits to be apparent and visible to equipment operators, workers and the CO.

E. Confine all equipment, construction activity and material stockpiles to within the clearing limits and work areas. Do not place equipment and material used for the construction upon drainages, streams, adjacent wetland areas or within driplines of live trees.

F. The intent of these documents is to limit construction disturbance to a minimum distance beyond the edge of new improvements. Establish approximate construction limits as specified below, except as otherwise shown on the plans or approved by the CO:

a. Excavations: At the top of cut slopes.

b. Embankments: At the bottom of fill slope.

c. Structures: Three-feet (3’) beyond foundation walls, or as required for excavation or embankment.

3.2 TEMPORARY EROSION AND SEDIMENTATION CONTROL

A. Install approved temporary erosion control devices as specified in Section 014126 and the Drawings.

B. Maintain temporary devices until such time that finish surfaces are in place. When permanent controls are established, remove temporary devices.

3.3 CLEARING AND GRUBBING

A. Where clearing is required, clear, grub, remove and dispose all debris, trees, snags, downed timber, stumps, roots, brush, and other protruding vegetative material within the clearing limits, not designated to remain, except the following:

1. Undisturbed stumps outside roads and pads. Stumps at the toe of road and pad embankments may remain and shall be cut off below the root collar.

2. Undisturbed stumps in embankment areas, provided they do not extend more than 12 inches above the original ground (measured from the uphill side) nor closer than 2 feet to the finished subgrade or 1 foot to any slope surface; and they do not interfere with the placement or compaction of embankments.

3. Vegetation less than 3 feet in height and less than 3 inches in diameter that is within the clearing limits but beyond the roadway and not in a decking area and that does not interfere with sight distance along the road.

B. Where excavation is necessary, grub the root mat to the underlying soil and remove stumps and roots.

Within the roadway limits remove stumps with less than 24 inches of cover.

C. Except in areas to be excavated, stump holes shall be backfilled with suitable materials and compacted in accordance with the specifications.

D. Do not damage vegetation outside of the clearing limits. Remove and dispose of trees with major roots exposed by construction that are rendered unstable. If construction threatens to affect roots greater than a 2” diameter of trees flagged for retention, obtain CO approval prior to continuation of work.

E. Fell all dead trees that are outside the clearing limits and that lean toward the road and are tall enough to reach the roadbed.

F. Fell trees into the area being cleared when ground conditions, tree lean, and shape of clearing permit. Use controlled felling to ensure the direction of fall to prevent damage to property, structures, vegetation to remain, or traffic. Topping and/or limbing may be necessary prior to felling large trees to prevent damage to existing vegetation.

G. Cut off fire-dangerous dead trees or unstable live trees, designated by the CO, within 15 feet beyond the clearing limits, not more than 12 inches above the uphill ground line. Trim branches on remaining trees or shrubs to establish clear heights above roads, parking areas and pads as specified in paragraph 3.5, below.

H. Remove or dispose of fallen trees, stumps, brush and vegetative debris as specified in 3.6, below.

3.4 PROTECTION OF EXISTING TREES

A. Any trees within clearing limits that are to remain will be clearly marked. Protect these trees from damage.

B. No equipment on wheels or tracks shall be operated or stored, or materials placed and stockpiled within the driplines of the trees designated to remain.

3.5 TREE TRIMMING AND ROOT PRUNING

A. Tree trimming and root pruning shall be in accordance with standards established by the International

Society of Arboriculture. Limb trees with clean cuts made flush with the outside edge of branch collar.

3.6 SALVAGE AND DISPOSAL

A. Cut timber meeting the following requirements into maximum lengths of 30 feet and stockpile for use as firewood:

1. Spruce trees only.

2. Diameter: greater than 4 inches (measured inside bark at small end).

3. Soundness: free of rot

B. Firewood storage requirements: Locate firewood storage piles as directed by CO in the Mendenhall Campground, or other locations outside of work areas in locations approved by the CO. Remove brush from storage area as needed. Deck logs so that logs are piled parallel to one another; can be removed by standard log loading equipment; will not damage standing trees; will not interfere with drainage, and will not roll. Keep logs in storage areas free of brush and soil.

A. Dispose of cleared vegetation slash and vegetative debris not meeting these requirements as designated in Section H. Other disposal sites on Forest Service land must be approved by the CO.

B. Immediately remove slash deposited in stream courses.

SECTION 312300

EXCAVATION AND EMBANKMENT

PART 1- GENERAL

1.1 DESCRIPTION

A. This work shall consist of excavation and shaping of embankment material in locations noted on the plans. Work includes excavation of unsuitable material, embankment construction, and disposal of excavated material necessary for the completion of construction.

1.2 RELATED WORK

A. Section 321500, Aggregate and Stone B. Section 311000, Site Clearing

PART 2 - MATERIALS

2.1 EMBANKMENT MATERIAL.

A. Suitable material: Rock or earth material that will provide stable foundations, embankments, or roadbeds, and is reasonably free of organic matter, roots, muck, sod, or other detrimental material.

Suitable material may require drying or adding water, root picking, and other methods of manipulation before use. Suitable material includes the classifications of materials for which the project was designed.

B. Unsuitable material: Material not capable of creating stable foundations, embankments, or roadbeds.

Unsuitable material includes muck, sod, or soils with high organic contents.

3.1 CLEARING AND GRUBBING

A. Complete clearing and grubbing before excavation or embankment placement begins.

3.2 UTILIZATION OF EXCAVATED MATERIALS

A. Approved excavated material from toilet building excavation may be used as embankment in other areas of the project.

B. Excavate unsuitable material. Backfill excavated areas with suitable material (see Part 2.1) when necessary to complete the work. Do not place frozen material in embankments.

C. Stockpile sufficient excavated soil as approved for use as planting soil.

D. Dispose of unsuitable or excess material legally off the project site in areas designated in Section H.

Shape and dress slopes of disposed material as shown on drawings or as approved by CO.

E. Stockpile suitable fill material at West Glacier Trailhead, near the existing boulder stockpike, off of the paved area as approved by the CO. Location can be used as both temporary and permanent storage.

3.3 SUBEXCAVATION

A. Excavate material to the limits designated by the CO. Take cross-sections according to FP-03, Section

152. Prevent unsuitable material from becoming mixed with the backfill. Dispose of unsuitable material according to Part 3.2, subsection D. Backfill the subexcavation with topping or other suitable material.

Compact the material according to Subsection 3.5.

3.4 ROADWAY EXCAVATION & EMBANKMENT.

A. Construct the roadbeds according to the applicable requirements of Section 312300 except as modified herein. Construct the roadway to the required template. Protect backslopes from being undercut. Deposit material inside the roadbed limits or designated locations. Do not restrict drainage.

B. Areas requiring end haul and end haul disposal areas will be identified on ground and approved in advance. Dispose of unsuitable or excess material according to Section 312300, Part 3.2, subsection D.

C. Place rocks that are too large to be incorporated in the embankment outside the traveled way on the downhill side so that they will not roll, obstruct drainage, or hinder roadbed use and maintenance.

Maximum particle cannot exceed half the depth of embankment layer.

D. Place material by side casting and end dumping to a minimum depth needed for operation of spreading and hauling equipment and minimum depths as shown on typical cross- sections. Minimum embankment depth in areas where prepared ground surfaces are solid rock is 12 inches. Construct solid embankments with adequate compaction by working smaller rock and fines in with larger rocks to fill the voids.

E. Produce and use borrow material from approved sources, and remove and treat unsuitable or excess material.

F. Operate loaded hauling and spreading equipment uniformly over full width of each layer.

G. Leave slopes that are to be seeded in a roughened condition.

H. Use a crawler tractor with a dozer blade to shape and finish the roadbed. Provide for drainage of surface water, unless otherwise designated. Do not permit individual rocks in the roadbed to protrude more than 4 inches above the subgrade. A motor grader finish is not required.

I. Do not encroach on stream channels, wetlands, or extend beyond right-of-way or easement limits.

3.5 COMPACTION

Conform to FP-03 Section 204.11 and the following Forest Service Supplemental Specifications:

Delete the first paragraph and replace it with the following:

For compaction according to method (a), (b), or (c), use AASHTO T 27 to determine the amount of material retained on a Number. 4 sieve. For compaction methods (d) or (e) no sieve test is required.

Add the following compaction methods:

(d) Layer Placement Method (Hauling and Spreading Equipment). Place material by end dumping to the minimum depth needed for operation of spreading equipment. Level and smooth each embankment layer before placing the next layers. Operate hauling and spreading equipment uniformly over the full width of each layer. Construct a solid embankment with adequate compaction by working smaller rock and fines in with the larger rocks to fill the voids, and by operating hauling and spreading equipment uniformly over the full width of each layer as the embankment is constructed.

(e) Layer Placement (Roller Compaction) Method. Place material by end dumping to the minimum depth needed for operation of spreading equipment. Adjust the moisture content of the material to obtain a mass that will not visibly deflect under the load of the hauling and spreading equipment. Operate compaction equipment over the full width of each layer until visible deformation of the layer ceases or, when a sheepsfoot roller is used, the roller “walks out” of the layer. Make at least three complete passes.

3.6 OVERBUILDING AND LANDSCAPE PROTECTION

A. Confine excavation and fill to within the clearing limits to protect the native landscape.

3.7 GRADING

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

B. Grade surface under concrete slab smooth and even, free of voids, compacted as specified and to required elevation. Grade areas adjacent to concrete slab to drain away from shelter and to prevent ponding as approved.

SECTION 320100

AGGREGATE AND SHOT ROCK FOR DRIVEWAY AND PARKING AREAS

A. Work covered under this section includes constructing one or more courses of aggregate and shot rock for driveways and parking areas.

1.2 REFERENCE SPECIFICATION

A. Standard Specifications for Construction of Roads and Bridges on Federal Highway Projects (FP – 03) B. American Association of State Highway Transportation Officials (AASHTO), Standard Specifications for

Transportation Materials and Methods of Sampling and Testing, most recent edition.

1.3 RELATED WORK

A. Section 312200, Road Reconditioning B. Section 312300, Excavation and Embankment

PART 2 – MATERIALS

2.1 BASE AGGREGATE

A. Provide hard, durable particles or fragments of stone, slag, or gravel conforming the following:

1. Gradation Table 321500-1

2. Liquid limit, AASHTO T 89 25 max.

3. Plastic Index, AASHTO T 90 Nonplastic

4. Los Angeles abrasion, AASHTO T 96 40% max.

5. Sodium sulfate soundness loss (5 cycles), 12 % max.

6. AASHTO T 104

7. Durability index (coarse), AASHTO T 210 35 min.

8. Durability index (fine), AASHTO T 210 35 min.

9. Fractured faces, ASTM D 5821 50% min.

10. Free from organic matter and lumps or balls of clay.

Do not use material that breaks up when alternately frozen and thawed or wetted and dried. Obtain the aggregate gradation by crushing, screening, and blending processes as necessary. Fine aggregate, material passing the No. 4 sieve, shall consist of natural or crushed sand and fine mineral particles.

Table 321500-1 Gradation Requirements for Screened Aggregate

Sieve Size

Percent by Mass Passing Designated Sieve

(AASHTO T 27 and T 11) Grading Designation

C

2 inch 100

1 inch 80 – 100 (6)

3/4 inch 64 – 94 (6)

3/8 inch 40 – 69 (6)

No. 4 31 – 54 (6)

No. 200 4.0 – 7.0 (3)

( ) The value in parentheses is the allowable deviation (±) from the target values.

2.2 SUBBASE

A. Provide a well-graded mixture of hard, durable particles or fragments of stone, slag, or gravel. The material must be free of excess moisture, muck, frozen lumps, roots, sod, organic matter, lumps or balls of clay, or other deleterious material. The material must provide a solid mass with minimal voids after compaction. Maximum particle size: 6 inches.

Do not use material that breaks up when alternately frozen and thawed or wetted and dried. Obtain aggregate gradation by crushing, screening, and blending processes as necessary.

PART 3- CONSTRUCTION

3.1 General.

A. Prepare the subgrade according to Section 312300.

B. Correct all ruts and soft yielding spots by loosening and removing unsuitable material and adding suitable material. See Section 312300 Part 2.1 for definitions of suitable and unsuitable material. Reshape and recompact the affected areas.

C. Obtain written approval of the subgrade before placing aggregate.

3.2 Mixing and Spreading.

A. Mix the aggregate and adjust the moisture content to obtain a uniform mixture with a moisture content within

2 percent of the optimum moisture content. Spread and shape the mixture on the prepared surface in a uniform layer with no segregation of size.

B. Except for Shot Rock, do not place the mixture in a layer exceeding 6 inches in compacted thickness. When more than one layer is necessary, compact each layer before placing the next layer. Route hauling and leveling equipment uniformly over the full width and length of each layer to minimize rutting or uneven compaction.

3.3 Compaction.

A. Adjust the moisture content of the aggregate to a uniform moisture content suitable for compaction.

B. Compact each layer full width. Roll from the sides to the center, parallel to the centerline of the road. Along curbs, headers, walls, and all places not accessible to the roller, compact the material with approved tampers or compactors.

C. Compact the aggregate using one of the following methods as specified:

Compaction A. Operating spreading and hauling equipment over the full width of the travelway.

Compaction B. Operate rollers and compact as specified in FP-03 Subsection 204.11(a)(1).

Compaction C. Moisten or dry the aggregate to a uniform moisture content between 5 and 7 percent based on total dry weight of the mixture. Operate rollers and compact as specified in FP-03 Subsection 204.11(a)(1).

Compaction D. Compact to a density of at least 95 percent of the maximum density, as determined by AASHTO T 99, method C or D.

Compaction E. Compact to a density of at least 96 percent of the maximum density, as determined by the Modified Marshall Hammer Compaction Method (available upon request from USDA Forest Service, Regional Materials Engineering Center, P.O. Box 7669, Missoula, MT 59807).

Compaction F. Compact to a density of at least 95 per-cent of the maximum density, as determined by AASHTO T 180, method C or D.

Compaction G. Compact to a density of at least 100 percent of the maximum density as determined by the Modified Marshall Hammer Compaction Method (available upon request from USDA Forest Service, Regional Materials Engineering Center, P.O. Box 7669, Missoula, MT 59807).

D. For all compaction methods, blade the surface of each layer during the compaction operations to remove irregularities and produce a smooth, even surface. When a density requirement is specified, determine the in place density and moisture content according to AASHTO T 310 or other approved test procedures.

3.4 Surface Tolerance.

A. Shape the surface to the required template and check the surface with a 10-foot straightedge. Defective areas are surface deviations in excess of ½ inch in 10 feet between any two contacts of the straightedge with the surface.

B. Correct all defective areas by loosening the material, adding or removing material, reshaping, and compacting.

3.5 Thickness and Width Requirements

C. Thickness requirements: The maximum variation from the compacted specified thickness is ½ inch. The compacted thickness is not consistently above or below the specified thickness and the average thickness of 4 random measurements for any ½ mile of road segment is within + ¼ inch of the specified thickness.

D. Width requirements: The maximum variation from the specified width will not exceed +12 inches at any point. The compacted width is not consistently above the specified width and the average of any four random measurements along any ½ mile of road segment is within +4 inches of the specified width.

3.6 Maintenance. Maintain the aggregate course to the correct line, grade, and cross-section by blading, watering, rolling, or any combination thereof until placement of the next course. Correct all defects according to Subsection 3.4.

3.8 Acceptance. See FP-03 Subsection 301.08, except as modified herein.

Delete 301.08 (b)

Table 301-1: Add the following:

Table 301-1—Acceptance Sampling and Testing Requirements.

Material or Product

Type of Acceptance (Subsection)

Characteristic Category Test Methods Specifications

Sampling Frequency

Point of Sampling

Split Sample

Reporting Time

Subbase & Base Courses L, M, N, O, P, Q, R

Measured and tested conformance

(Subsection 106.04)

Plastic Limit - AASHTO T 90 1 per each 1,000 T

From the windrow or roadbed after processing

Yes 4 Hours

Table 301-1—Acceptance Sampling and Testing Requirements.

Material or Product

Type of Acceptance (Subsection)

Characteristic Category Test Methods Specifications

Sampling Frequency

Point of Sampling

Split Sample

Reporting Time

Aggregate Width Measured and tested conformance

(Subsection 106.04)

Width - - 4 per each 0.5 mi

Roadbed after processing

- 4 Hours

Aggregate Thickness Measured and tested conformance

(Subsection 106.04)

Thickness - - 4 per each 0.5 mi

Roadbed after processing

- 4 Hours

Additive Measured and tested conformance

(Subsection 106.04)

Amount of Additive - 1 per each 1,000 T

From the windrow or roadbed after processing

No 4 Hours

SECTION 321500

AGGREGATE, STONE, AND PRECAST CONCRETE FOR TRAILS, PATHWAYS, PADS

A. Work covered under this section shall consist of furnishing, hauling and placing commercially produced aggregate and stone boulders and constructing trails,…