A04_Statement_of_Work_-_Bridge_Kits.pdf

STATEMENT OF WORK / SPECIFICATIONS

Project: William L. Finley NWR,

(2) Structural Fiber Reinforced Plastic / Polymer Manufactured Bridge Assembly Kits

Design, Engineer, Manufacture, Haul, Deliver, and Unload Bridge Assembly Kits at Delivery / Unloading Point.

Bridge Floor Grating and Boardwalk Floor Grating

Haul, Deliver, and Unload Grating Product, Grating Product to be Stock Material.

1.0. PRODUCT FEATURES.

Name of Items:

Item 1. Structural Fiber Reinforced Plastic / Polymer Manufactured Bridge Assembly Kits. Bridge Kits to Include All Required Bridge Structure Parts, Stainless Steel Hardware Kit, to result in a Complete Assembly Kit and Future Installation. Color of bridge kits to be green, brown or dark gray. Bridge Section Decking / Grating to be supplied at the Refuge’s Option, Refer to Option Task 3 on the Proposal Schedule. Item(s) must be brand name or equal.

Item 2. Safe-T-Span ® Pultruded Fiberglass Grating, Fibergrate I4010, 1 Inch Depth, (Preferred Product), OR Fibergrate T1215, 1-1/2 Inch Depth, OR FRP Pultruded Deck Decking with High Traction Grit (Depth and Model Number as recommended by Contractor / Supplier). Item(s) must be brand name or equal.

Supply decking / grating with Stainless Steel Hardware/Clips (Saddle Clips or Insert Clips).

(2) Hardware Clips recommended to be installed at each point of support (joist location).

Product selected shall be Architectural Barriers Act (ABA) and Americans’ with Disabilities Act (ADA) compliant.

Bridge Kits Model Number: No Model Number is Available for the Bridge Kits. Each Manufactured Bridge Assembly Kit is Designed, Engineered, and Manufactured according to the Project Technical Specifications and tailored to the specific requirements of the project.

Decking / Grating Model Number: Where No Pre-Determined Model Number is selected. Select Model Number based on Project Technical Specifications and Structural Loads noted under Salient Characteristics and in the separate attached Construction Drawings and In-Drawing Specifications.

Selected Product is to be tailored to the specific requirements of this project and meet all structural load requirements and serviceability requirements. Any substitute product shall be submitted to the Engineer of Record for separate review and approval / disapproval and before securing the Product Purchase Order.

2.0. SALIENT CHARACTERISTICS.

LIVE LOAD CRITERIA.

Minimum Pedestrian Live Load = 100 PSF.

Vehicle Live Load = 500 Lbs. Concentrated.

Type of Bridge Traffic: Pedestrians and occasional ATV use for maintenance of structure

SNOW LOAD CRITERIA.

Design Snow Load = 25 PSF MINIMUM [in accordance with the Oregon Structural Specialty Code (OSSC) https://www.oregon.gov/bcd/codes-stand/Pages/adopted-codes.aspx (hyperlink)].

Ground Snow Load (Pg) = 10 PSF (in accordance with snowload.seao.org) (hyperlink).

Snow Exposure Factor (Ce) = 1.0.

Snow Load Importance Factor (Is) = 1.0.

GEOTECHNICAL CRITERIA.

Allowable Soil Pressure. 1,700 PSF.

Short Term Loading. 1/3 Increase.

WIND CRITERIA.

Main Wind Force Resisting System V = 98 MPH Basic Design Wind Speed (3-Second Gust).

Components and Cladding.

V = 98 MPH Basic Design Wind Speed (3-Second Gust).

Exposure Category B.

Gust / Internal Pressure (GCpi = +/-0.18).

SEISMIC CRITERIA.

Risk Category II.

Seismic Design Category D.

Site Class D.

Importance Factor (IE = 1.0).

MCE Spectral Acceleration. Refer to Construction Drawings (separate attachment) for Maximum Considered Earthquake Spectral Acceleration.

Site Coefficient. Refer to Construction Drawings (separate attachment) for site coefficients.

Design Spectral Acceleration. Refer to Construction Drawings (separate attachment) for Design Spectral Acceleration.

Analysis Procedure. Equivalent Lateral Force per ASCE 7-16, Section 12.8.

DEFLECTION CRITERA – BRIDGE KITS.

Deflection Criteria for the Bridge Kits shall be limited to L / 800, where L is the Span Length in inches.

Bridge Camber is acceptable to offset deflections, but bridge slope shall not exceed ABA-ADA requirements.

DEFLECTION CRITERA – DECKING / GRATING.

Deflection Criteria for the Decking / Grating shall be limited to L / 360, where L is the Span Length in inches, or as determined by the Manufacturer’s Proprietary Calculations and Deflection Limit Criteria, whichever Deflection Criteria is more restrictive for the product application. Cut ends of decking materials must be sealed.

BRIDGE DIMENSIONS.

Bridge No. 1, Minimum Span Length = 30 Feet.

Bridge No. 2, Minimum Span Length = 35 Feet.

Bridge No. 1 and 2, Structure Clear Width (Measured from Interior Face of Guardrail Assembly to Interior Face of Guardrail Assembly) = 5 Feet.

Each bridge will include the following features:

54” High Guard Rails.

No greater than 4” clear spacing between Guard Rail Assembly Elements.

Kick Plates at base of Guard Rails.

Refer to Guardrail Safety Design Checklist for minimum specific requirements for guardrail design.

FRP Pultruded Decking with High Traction Grit or FRP Pultruded Grating with High Traction Grit = 465 Feet in Length by ~5 Feet in Width. Specifications as per the Salient Characteristics as noted above.

(Total decking/grating for both bridges (65 Feet) and additional for boardwalks (400 Feet) = 465 Feet in Length by ~5 Feet in Width).

Capabilities:

Bridge No. 1 shall be capable of spanning approximately 30 Feet under the expected Structural Load Conditions noted in the Salient Characteristics. The 30 Feet Span is measured from midpoint of bridge support to midpoint of bridge support.

Bridge No. 2 shall be capable of spanning approximately 35 Feet under the expected Structural Load Conditions noted in the Salient Characteristics. The 35 Feet Span is measured from midpoint of bridge support to midpoint of bridge support.

Decking / Grating shall be capable of spanning at least 15-Inches un-supported under the expected Structural Load Conditions noted in the Salient Characteristics. The Floor Joists supporting the Decking or Grating are designed to be located at 15-Inches On Center.

Decking / Grating Deflection shall not exceed 0.25 Inches.

3.0. SUBMITTALS / DELIVERABLES.

BRIDGE SECTIONS.

Develop, Prepare, and Submit the Following Submittals to USFWS prior to Designing, Engineering, and Manufacturing each Bridge Assembly Kit.

Professional Engineer (PE) Stamped, Signed, and Sealed Submittals as follows:

For Approval (FA) Bridge CAD Drawings w/Foundation Details. “Approval Drawing Package.”

Include Adobe (.PDF File Extension) and CAD (.DWG File Extension).

Structural Design Calculations (Based on Load Conditions). Include Adobe (.PDF File Extension).

Fabrication Drawing Package. Include Adobe (.PDF File Extension).

Lift Plan (for lifting and installing with a crane). Include Adobe (.PDF File Extension)

DECKING / GRATING.

Develop, Prepare, and Submit the Following Submittals to USFWS prior to Hauling, Delivering, and Unloading Decking / Grating Product:

Product and Technical Data Pages for the Decking / Grating with annotations on the Product and Technical Data Pages detailing, which model number is selected and proposed for delivery.

Product and Technical Data Pages for the Proprietary Connectors, Clips, and Fasteners with annotations on the Product and Technical Data Pages detailing, which model number(s) is (are) selected and proposed for delivery.

Obtain Approval and Concurrence from USFWS on the Selected Product before securing the Product Purchase Order to Avoid Product Returns and Restocking Fees.

4.0. DELIVERY.

U.S Fish & Wildlife Service William L. Finley National Wildlife Refuge 26208 Finley Refuge Road Corvallis, OR 97333

Actual drop-off location is approximately ½ mile from our office location above at the Woodpecker Loop Trailhead (coordinates and image below).

Contractor responsibilities.

The contractor shall perform the following Work Tasks:

(1)(i) Pack and mark the shipment to comply with contract specifications; or

(ii) In the absence of specifications, prepare the shipment in conformance with carrier requirements;

(2) Prepare and distribute commercial bills of lading;

(3) Deliver the shipment in good order and condition to the point of delivery specified in the contract;

(4) Be responsible for any loss of and/or damage to the goods occurring before receipt of the shipment by the consignee at the delivery point specified in the contract;

(5) Furnish a delivery schedule and designate the mode of delivering carrier; and

(6) Pay and bear all charges to the specified point of delivery.

5.0. TECHNICAL POINT OF CONTACT (POC).

Eddy Pausch, Refuge Manager 541-223-2881

6.0. DELIVERY INSTRUCTIONS.

No later than three days prior to delivery, please contact the Point of Contact listed above, to arrange a specific time for delivery. Unloading the product is the sole responsibility of the delivery carrier. No labor or equipment will be provided by the government to unload the supplies.

7.0. INSTALLATION.

Construction and Installation of the Bridge Assembly Kits is not included in this Design, Manufacture, Haul, Deliver, and Unload Contract.

Construction and Installation of the Decking / Grating is not included in this Haul, Deliver, and Unload Contract.