Lost_Trail_Existing_Bridge_Information.pdf

SECTION C

STATEMENT OF WORK

REPLACE BRIDGE

AT

LOST TRAIL NATIONAL WILDLIFE REFUGE

(10-020)

I. JOB DESCRIPTION

A. The Contractor shall furnish all labor, materials and equipment for the following:

1. Design, fabricate, deliver, and install one (1) prefabricated steel bridge with precast concrete footings, guard railings, approach railings, and concrete decking.

B. The old wooden bridge will be removed by Flathead County. The Contractor shall coordinate the bridge removal with the Flathead County Bridge Foreman, Greg Iverson, at (406) 758-5790 and with the Refuge Manager, such that construction of the new bridge will begin as soon as the old bridge has been removed.

C. The structures shall be furnished and delivered complete with all necessary accessories customarily furnished with structures of the type specified, whether stipulated herein or not.

D. Perform all necessary testing to design and install the bridge and supporting structures.

E. Perform dewatering, clearing, excavation, backfill, compaction, and grading necessary to complete the project as required.

F. Provide and install two signs for one lane bridge at each end location.

G. Work shall include an initial survey of the facilities/structures to verify the locations and details.

H. The Contractor shall provide as-built drawings of the completed bridge prior to final payment.

I. The Contractor shall have all certificates, licenses, and permits required by law for the execution of the work and shall comply with all Federal, State, or local laws, ordinances or rules and regulations relating to performance of the work.

II. PROJECT LOCATION

A. The project site is the Lost Trail National Wildlife Refuge (NWR), which is located approximately 40 miles west of Kalispell, Montana, at 6295 Pleasant Valley Road, Marion, Montana 59925. The phone number is (406) 858-2442. Refer to attached drawing No. 6R-MT-1280-10-020 for a vicinity map and site plan of the area.

B. Prospective bidders MUST visit the site and become familiar with existing conditions, ascertain the nature, location, and conditions which affect the work. Bids will not be accepted from Contractors who have not visited the site prior to submitting their proposal. Prospective bidders must make site inspection arrangements with the Refuge Manager located at 6295 Pleasant Valley Road, Marion, Montana 59925, telephone

(406) 858-2442.

C. It is the Contractor’s responsibility to determine actual conditions at the site. Failure of the Contractor to ascertain the nature, location, and conditions which affect the work will not relieve him from the responsibility for successfully performing the work without additional expense to the Government. The site is available from 7 am to 4:30 pm, Monday through Friday.

D. The Contractor shall complete the work during June, July, or August.

III. PROJECT REQUIREMENTS

A. The Contractor shall coordinate with the Flathead County Bridge Foreman for the removal of the old bridge and shall give the Refuge Manager at least 48 hours notice prior to the removal of the old bridge. Complete operations necessary for removal of existing structure or obstructions which may damage new construction, prior to placing the new work.

B. Flathead County will provide the labor and equipment required to remove the existing wooden bridge.

C. The Contractor shall be responsible for all engineering design required to successfully complete the project.

D. Furnish and install 20’ wide, 38’ long, prefabricated steel bridge, along with precast concrete footings to support the bridge. The bridge shall include vehicular guard rails and approach rails. The design of the structure shall be performed by or under the direct supervision of a professional engineer experienced in design of this work and licensed in the State of Montana. The fabricator shall be a company specializing in manufacturing this type of work with a minimum of 3 years of experience.

E. Immediately upon complete removal of the old bridge, the Contractor shall begin work on the new bridge. The Contractor must have the new bridge, including concrete decking, available for use by the Refuge staff two weeks after the removal of the old bridge.

F. The work shall include all dewatering, clearing, excavation, backfill, compaction, testing and grading as necessary to complete the project.

G. Design stresses shall be in accordance with the AASHTO “Standard Specifications for Highway Bridges,” 17th edition.

H. DESIGN LOADINGS

1. Bridge dead load plus 80-psf total wearing surface.

2. HS20 vehicle with impact.

3. 50-psf wind load against height of stringer plus side dam.

4. W-Beam Guardrail System designed for ½ AASHTO Loading.

5. Live load deflection shall not exceed L/800 for HS20-44 vehicle without impact.

I. MATERIALS

1. Support Structures and Bridge Surface:

a. Cement: Portland, conforming to ASTM C150, Type II.

b. Fly Ash: Mix design shall contain fly ash in an amount between 15% and 20% of the cementitious materials. ASTM C618, Type C.

c. Aggregate, Sand, Water, Admixtures: Determined by precast fabricator as appropriate to design requirements and PCI-116.

d. Reinforcing Steel: ASTM A615 deformed steel bars.

e. Backfill material shall be clean unfrozen earth, free of rocks over 4 inches in diameter, trash, muck, roots, or other deleterious material and shall be selected to meet the requirements and conditions of the particular backfill for which its use is intended.

2. Prefabricated Steel Bridge:

a. Structural Steel: ASTM A588 weathering steel

b. Decking: 4 ¼” corrugations, 9-gage galvanized steel, Fy = 50 ksi.

Decking to be welded to top flange of stringers. Welds to be treated with one coat of TTP-641G Type II Zinc Dust Primer.

c. Structural Bolts: ASTM A325. All bolts to have one nut and one flat washer. Assemblies shall be furnished in an amount of 2% in excess of the number required for each size and length.

d. Guardrail: Galvanized W-Beam Rail, 12-gage thickness, with flared ends at each end of the bridge.

e. Approach Rail: Galvanized W-Beam Rail, 12-gage thickness, with flared ends at each end that is away from the bridge. A 2-sided crystal reflector tab shall be provided at each post. Railings on the north side of the bridge shall be 10 foot long. Railings on the south side of the bridge shall be as close to 10 foot long as possible without entering the Right of Way of the County road.

f. Elastomeric Leveling Pads: 60-Durometer Neoprene, if required.

g. Welds: ANSI/AWS D1.5 “Bridge Welding Code”, current edition.

h. Fabrication facility shall be certified under the AISC Quality Certification

Program in the Major Bridge Category.

J. The structures shall be installed level and plumb. The road grade elevation shall match the road grade elevation of the existing road. The minimum width of the bridge shall be 20 feet. The length of the bridge shall be 38 feet with a maximum span of 34 feet.

K. All exposed surfaces of structural steel shall be wiped clean in accordance with SSPC-

SP1. Exposed surfaces of steel shall be defined as those surfaces seen from the outside of the structure.

L. PROTECTION AND RESTORATION

1. The Contractor shall protect all structures and vegetation during the progress of the work and remove all debris and unused materials from the site.

2. Upon completion of the work, the Contractor shall restore all vegetation to its original condition, including the replacement at the Contractor’s expense of any facility or landscaping which has been damaged.

3. The Contractor shall limit removal of any vegetation to that which interferes with the construction, and shall seed any bare soil with native grass. The Contractor shall obtain seed mix from the Refuge Biologist.

4. To prevent the spread of noxious weeds, all equipment must be cleaned before arriving at the project site and prior to leaving the project site. The Refuge will provide a pressure washer and a location where the equipment can be cleaned prior to leaving the project site.

5. The Contractor shall replace or repair any utility lines that are moved or damaged during removal of the old bridge or construction of the new bridge. The Contractor is responsible for any damage to existing utility lines that cross the waterway at the same location as the current bridge.

6. The Contractor shall use 1 ½” minus gravel to restore bridge approach surfaces, as directed by the Refuge Manager.

M. SIGNAGE

1. Furnish and place roadway signs as follows: Install “One Lane Bridge” signs.

Locate this sign approximately 25 feet from end of the existing structure, right side of roadway, at the north approach. On the south approach, the sign shall be placed on the right side of the roadway, such that it is outside of the right of way of the county road, but as close to 25 feet from the end of the existing structure as possible.

2. The Contractor shall refer to the State of Montana Standard Specifications for

Road and Bridge Construction, and the Manual on Uniform Control Devices for Streets and Highways (MUTCD), U.S. Department of Transportation, Federal Highway Administration for State requirements for signage and warning lights.

3. Material requirements for highway signs, posts, and hardware shall conform to

State of Montana Standard Specification for Road and Bridge Construction, Section 704, Signing Materials and Section 619, Signs, Delineators, and Guideposts. All sign faces shall be in accordance with the detail drawings and the alphabets shown in the MUTCD, Standard Highway Signs, and Standard Alphabets, published by Federal Highway Administration.

4. Aluminum flat sheet for sign backings shall be 0.10 inch in thickness. Reflective sheeting material shall be Type III. All signs shall have reflective background. In no case is the color black reflective. Posts shall be Type II telescoping galvanized steel posts with flange channel supports. Post dimensions shall be 2-1/4" by 2- 1/4" with 12 gauge thickness.

5. The work of furnishing, fabricating, and installing signs shall be in accordance with the Montana Standard Specification for Road and Bridge Construction, Section 704, Signing Materials and Section 619, Signs, Delineators, and Guideposts. The “One Lane Bridge” signs shall be mounted at a height at least 5 feet, measured from the bottom of the sign to the near edge of the road.

IV. SUBMITTALS

A. All submittals from the Contractor shall be accompanied by a Government-furnished submittal form which shall be used as the document for approving or disapproving the material or item. Three copies of data shall be submitted to allow the Government to retain two copies.

B. The Contractor shall submit with his bid, the details of the proposed prefabricated steel bridge and concrete footings, including design calculations. The Contractor shall explain the proposal in sufficient detail and clarity to clearly communicate the design, and how the proposed work will be accomplished.

C. The Contractor shall submit a detailed project schedule for approval, within 10 days of the issuance of the Notice to Proceed (NTP), and shall include the following:

1. Breakdown of each project task for both the design and construction phases.

2. Sequence of project tasks with start dates, duration, and finish dates, with proper time allowances for prerequisites.

3. Project tasks shall include the proposed dates for each of the required submittals, with the proper time allowances for review by the Government. The Contractor shall allow a minimum of seven (7) calendar days, but not more than thirty (30) calendar days, for Government review of the submittals.

D. The Contractor shall submit for approval, after the issuance of the Notice to Proceed

(NTP), detailed construction drawings and specifications for the structure.

E. The Contractor shall submit for approval, after the issuance of the Notice to Proceed (NTP), product data for materials used in the construction of the project.

F. Contractor shall submit final as-built drawings at time of final acceptance and prior to final payment.

G. Submit manufacturer's warranties for the installed structures and materials.

H. Submit copies of each delivery ticket for all material delivered to the construction site.

The delivery ticket shall show brand name, catalog number, and number of items delivered.

V. GENERAL REQUIREMENTS

A. ENVIRONMENTAL PROTECTION

1. Pollution Control

a. The Contractor shall abate and control all environmental pollution arising from construction activities by complying with all applicable Federal, State, and local laws and regulations concerning environmental pollution control and abatement, as well as the specified requirements in this contract.

b. Compliance with this requirement by subcontractors will be the responsibility of the Contractor.

2. Fossils and Artifacts

a. Should the Contractor discover any fossils or cultural materials during construction operations, such objects shall become the property of the Government. The Contractor shall cease construction operations in the area of the "find", and immediately notify the Station Manager of the discovery.

Construction operations may proceed in other areas not affected by this clause.

Care shall be exercised by the Contractor not to damage or collect fossils or cultural materials uncovered during excavation operations.

Failure to comply with this requirement may be considered a violation of the Archeological Resources Protection Act of 1979, as amended. Destruction of historic and prehistoric sites and/or unauthorized collection of cultural materials can result in criminal and/or civil penalties.

b. If the Contractor uses materials obtained from a non-government source to perform work that is required under this solicitation, and a new borrow site is opened or an existing borrow area is expanded in order to obtain such materials, the Contractor shall assure that any new borrow area disturbance meets the requirements of Section 106 of the National Historic Preservation Act.

3. Prevention of Water Pollution

a. During construction the Contractor shall comply with all applicable Federal, State, and local laws and regulations concerning the control and abatement of water pollution.

b. The Contractor's construction activities shall be performed by methods that will prevent entrance or accidental spillage of solid matter, contaminants, debris, and other objectionable pollutants and wastes into streams, flowing or dry watercourses, lakes, ponds, and underground water sources. Such pollutants and wastes include, but are not limited to, refuse, garbage, cement, concrete, sanitary waste, industrial waste, radioactive substances, oil and other petroleum products, aggregate processing tailings, mineral salts, and thermal pollution.

At the completion of construction, the Contractor shall remove and dispose of all pollutants, wastes, and objectionable material at a site located off the Government property. The Contractor is responsible for the proper disposal of such materials in accordance with applicable local, state, and federal regulations.

c. Sanitary facilities, such as chemical toilets, shall be located far enough from wells, live streams, or ponds to prevent pollution of the water.

d. Any work adjacent to, or encroaching on, streams or watercourses shall be conducted in a manner which prevents muddy water and eroded materials from entering the streams or watercourses. This shall be accomplished by construction of intercepting ditches, bypass channels, barriers, settling ponds, or other approved means. Excavated material shall not be placed in or adjacent to watercourses where it can be washed away by high water or storm runoff.

4. Abatement of Air Pollution

a. The Contractor shall comply with applicable Federal, State, and local laws and regulations concerning the prevention and control of air pollution.

b. Construction activities shall be performed in such a manner that air pollution is held to a minimum.

c. Burning of materials, trees and brush, combustible construction materials, and rubbish will not be permitted. Construction debris shall be hauled off the refuge to an approved landfill area.

5. Noise Pollution

a. The Contractor shall comply with applicable Federal, State and local laws, temporary use permit, orders, and regulations concerning the prevention, control, and abatement of excessive noise.

6. Environmental Litigation

a. Time lost due to work stoppage because of failure of the Contractor to comply with these requirements may not be the subject of a claim for extension of time or for costs or damages.

B. SAFETY

1. Provide at least one nonfreezing-type fire extinguisher in each workshop and shed used for storage of materials at the worksite. Place in location readily accessible to workers.

2. Provide and maintain a basic first aid kit for use of workers.

a. Provide first aid supply commensurate with size of project with items necessary for first aid treatment of all injuries.

b. Advise all workers of the location of first aid supplies.

3. Post telephone numbers of nearest hospital or ambulance service and fire station in conspicuous location. Advise all workers of location of telephone and telephone numbers. Communication devices shall be available and ready at the work site, to alert others in emergency situations.

4. The Contractor shall assume full responsibility and liability for compliance with all applicable Federal, State, and local regulations pertaining to the protection of workers, visitors to the site, and persons occupying areas adjacent to the site, i.e., 29CFR1910 and 29CFR1926 of the Code of Federal Regulations. The Contractor is responsible for providing medical examinations and maintaining medical records of personnel as required by the regulations. The Contractor shall hold harmless the Government for failure to comply with any applicable safety and health regulation on the part of himself, his employees, or his subcontractors.

5. Every employee is responsible for complying with applicable safety requirements, wearing prescribed safety equipment, and preventing avoidable accidents and property damage.

C. OPERATION AND STORAGE AREAS

1. All Operations of the Contractor (including storage of materials) upon Government premises shall be confined to areas authorized or approved by the Contracting Officer.

2. The Contractor shall not enter or occupy with men, tools, equipment, or material any ground outside the Government’s property without the written consent of the owner of such ground.

D. TEMPORARY UTILITIES

1. Lighting

a. Provide and maintain temporary lighting as may be required for construction and safety purposes.

2. Toilets

a. Provide and maintain suitable, weather-tight, painted, sanitary toilet facilities for all workmen during the construction period. When toilet facilities are no longer required, promptly remove them from the site. Disinfect and clean or treat the area as necessary.

b. Provide and maintain facilities in accordance with the requirements of applicable local and State health authorities and OSHA.

c. Keep all toilet facilities clean and supplied with toilet paper at all times.

3. Telephones

a. The Contractor will be permitted to use the Government telephone at the Refuge headquarters without charge for local calls which are directly related to the performance of the work. The Contractor shall provide a wireless communication system for emergency purposes.

4. Water

a. The Contractor shall be responsible for providing water, suitable for performance of the work. Also, the Contractor shall be responsible for providing potable water for workmen.

VI. PERFORMANCE

A. The project shall be completed and available for use by the Station within 90 calendar days from the date the Notice to Proceed (NTP) is issued. Design, design approval, procurement, and construction shall be completed within this 90 day period.

Construction will not continue on Saturdays, Sundays, or holidays without prior permission of the Government on-site inspector.

B. The Contractor shall procure all permits and licenses, pay all fees and taxes, and give notices necessary to perform the services of the contract.

C. The Contractor shall be liable for damages to roads, utilities, structures, and property, due to any act, omission, neglect, or misconduct during the period of performance of the services of this contract.

END OF DESCRIPTION/SPECIFICATIONS