acrow-bridge-specifications-revised.pdf

Amendment 003 AG-05G1-S-10-0035 AZURITE MINE ACCESS – ROAD CONSTRUCTION

571 – PREFABRICATED BRIDGES

Description

571.01 This work consists of installing a Government-furnished Acrow Series 300 modular bridge superstructure by launching or by crane. The work also includes preparation of a project work schedule, development and submittal of an installation plan, retrieval of bridge parts from the storage site, transport of all bridge parts to the site, erection of the modular bridge at the site, construction of foundations and bearing seats, and furnishing all equipment and tools to erect the superstructure..

Materials

571.02 Requirements. Furnish materials that meet the requirements specified in the following sections:

Delineator and Object Marker Retroreflectors 718.12 (b) Type 2

Object Marker and Delineator Posts 718.09 (a)

Non-Shrink Grout 725.22 (c)

Precast Concrete 725.11(g)

Structural Concrete 552.01

Structure Excavation and Backfill, Method A 209.01

Construction Requirements

571.03 Work Schedule and Installation Plan. Within 7 days after Notice to Proceed, submit a

Work Schedule for the project and an Installation Plan for the Acrow superstructure.

In the Work Schedule, include planned dates for retrieval of parts from the storage site listed in

571.04 b. (Auburn, WA)

In the Installation Plan, include the proposed method of installing the Acrow superstructure; the proposed layout at the site during erection and installation; fabrication of concrete footings, geotextile reinforced approach ramp embankments, and concrete ―ecology block‖ backwalls.

571.04 Government-furnished modular steel bridge superstructure components and launching nose. Coordinate retrieval, transportation, and delivery of the Government-furnished

Acrow modular bridge superstructure with the CO and the assigned Government contact.

If the modular superstructure is not assembled and/or installed immediately upon delivery to the project site, provide appropriate equipment and labor to unload and stack, support, and store all material at the delivery point. Support and stack all components to prevent damage. Furnish and install blocking to support all components at least 12 inches above the ground.

Amendment 003 AG-05G1-S-10-0035 AZURITE MINE ACCESS – ROAD CONSTRUCTION

Furnish a forklift and operator at all storage yards capable of operating on loose packed gravel, or similar equipment.

Retrieve Acrow modular bridging parts as outlined below:

a. Retrieve Acrow modular bridging components from the GSA Storage facility in Auburn, Washington. Verify the parts list with the manufacturer before retrieving the materials. A separate list includes parts required to assemble a launching nose, if used. If a launching nose is used, the parts must be returned to the GSA facility immediately after launching. The following parts are required to assemble the 80' Acrow Triple Single Superstructure. Transport weights are approximate for planning purposes only, not truck scale weights. As a rough estimate, transport of these materials would require 2 or 3 flatbed trucks with a 40 foot trailer.

GSA to S. Fk. Slate - Superstructure

PART # DESCRIPTION QTY

WEIGHT

EACH

TOTAL

WEIGHT

to Bridge

AB 1 PANELS 48 588 28224

AB 2 RAKERS 36 11 396

AB 3 BRACING FRAMES 18 52 936

AB 5 END POSTS - MALE 6 205 1230

AB 6 END POSTS - FEMALE 6 211 1266

AB 7 BEARINGS - SINGLE 4 22 88

AB 8 BEARINGS - DOUBLE 4 44 176

AB 9 BASE PLATES 4 321 1284

AB 14 SWAY BRACE - EXTRA WIDE 34 23 782

AB 51 PANEL PINS 108 6 648

AB 52 SAFETY CLIPS 216 0.02 4.32

AB 53 BRACING BOLT 108 0.8 86.4

AB 54 RAKER BOLT 72 0.2 14.4

AB 55 TRANSOM SET BOLT 216 0.1 21.6

AB 63 SWAYBRACE BOLT 68 0.7 47.6

AB 309 STRINGER CLAMP ASSEMBLY 224 5 1120

AB 313 DECK UNIT HEAVY 5FT 68 284 19312

AB 314 CURB UNIT HEAVY 5FT 34 342 11628

AB304* TRANSOM EXTRA WIDE HEAVY 18 1005 18090

* Replacement number for SK5176

Total Transport and Installation Weight 85354

Amendment 003 AG-05G1-S-10-0035 AZURITE MINE ACCESS – ROAD CONSTRUCTION

SIDE GIRDER ONLY, for crane lift

P/N DESCRIPTION

Required Quantity

Weight per unit (lbs)

Total Weight

AB 1 PANELS 24 588 14112

AB 3 BRACING FRAMES 9 52 468

AB 5 END POSTS - MALE 3 205 615

AB 6 END POSTS - FEMALE 3 211 633

AB 51 PANEL PINS 54 6 324

AB 52 SAFETY CLIPS 108 0 0

AB 53 BRACING BOLT 54 0.8 43.2

Total Side Girder Weight

16195.2

GSA Facility

15th and "C" Streets

Auburn, WA 98001

Directions:

North on I-5 to State Route 18 (Exit 142);

East on 18 to State Route 167;

South on 167 approx. 1 mile to 15 th

Street exit;

East on 15 th

Street to TEE at ―C‖ Street;

South on ―C‖ Street approx 300-400 yards to entrance on right;

Turn west into GSA lot;

Turn left (south) at the water tower;

Approximately 400 yards to Storage yard on left, secured within a chain link fenced area. ―US Forest

Service Modular Bridge Inventory Lot‖

Notify the CO at least 7 days in advance of the intent to retrieve materials from this location.

Materials may be retrieved prior to approval of submittals but not without acknowledgement and approval of the 7 day prior notification.

Contractor is responsible for the loading, transport, and off-loading of all necessary bridge components at the South Fork Slate Creek Bridge site. The following information is being offered to the contractor with no guarantee as to its currency or relevance to the transport process;

An equipment rental business is located very near the Auburn, WA GSA storage facility, and has been used by the government in the past as a source of rental equipment to assist in the loading and offloading of Forest Service materials at the site. This business’s name is Starr Rentals, and is located at 4517 Auburn Way North, Auburn WA, 98001. Their phone number is 253-854-

3922. Their internet site is http://www.starrentals.com/.

Transport weights are approximate for planning purposes only, not truck scale weights.

Upon taking possession of the Government-furnished components at the storage site, assume liability for damage resulting from handling, transporting, or erecting the superstructure and liability for lost components, until final acceptance of the project.

Amendment 003 AG-05G1-S-10-0035 AZURITE MINE ACCESS – ROAD CONSTRUCTION

Notify the CO at least 7 days in advance of the intent to retrieve materials from this location. Do not retrieve materials until approval of the Work Plan, Installation Schedule, and verification of coordination with the Acrow representative. Retrieve material within 7 days after approval of the above.

b. Complete all clearing and grubbing in accordance with section 201, removal of structures and obstructions in accordance with section 206, construction of the geotextile reinforced mechanically stablized earth wall in accordance with section 255, and construction of foundation bearing supports in accordance with section 303, and

c. Before assembling the bridge, inventory all parts to determine if any parts are damaged.

Clearly identify and note any damaged parts. Resolve any differences between the inventory and the above parts list. Following verification of damaged or missing parts, replace any parts damaged or lost during construction at no cost to the Government.

d. At least 7 days before installation of modular superstructure, submit an installation plan.

Install the new superstructure by launching it using a Government-furnished, contractor assembled launching nose or by crane. A site visit is required to verify access for a sufficiently sized crane.

For a crane installation, furnish documentation of experience in constructing similar types of bridges.

Provide a plan that ensures all components are adequately braced at all construction stages.

e. Technical assistance may be available at a cost from from Acrow Corporation. Technical information and assistance regarding the construction of the Acrow Bridge can be obtained from the following:

Mr. Tom Pinder

Acrow Bridge

Suite 225

1746 Cole Blvd.

Golden, CO 80401

Phone: 303-279-9088

Fax: 303-279-9006

Mr. Chuck Hunter

Acrow Limited

Suite #130, 10691 Shellbridge Way

Richmond. B.C., V6X2W8

Phone: 604-276-0550

FAX: 604-270-3644

f. Assemble the bridge according to manufacturer’s recommendation. Place the bearing plates for the Acrow Bridge on foundation bearing supports—concrete pads--as shown on the plans.

Furnish all tools, devices, special equipment, and material needed for installation in well-marked watertight containers suitable for long-term, outdoor storage.

Construct all Acrow parts and sub-components, including side beams, so that all parts and sub-components are adequately braced at all construction stages. If sub-components, such as side beams, are not adequately braced and tip over or are torqued in other than the primary axis

Amendment 003 AG-05G1-S-10-0035 AZURITE MINE ACCESS – ROAD CONSTRUCTION

(vertical), the contractor will assume financial responsibility for replacement of all parts in the sub-component at current replacement prices.

g. Install geotextile reinforced aggregate ramps as shown on the plans and in accordance with section 204. Install concrete ―ecology blocks‖ as backwalls and deck end supports in conjunction with the construction of the approach ramps.

h. Install object markers and posts at the bridge ends as shown on the plans.

i. As determined by a site visit and identified by the CO, construct drainage culverts and reconstruct drainage ditches in accordance with section 30.

571.05 Bearings and Approaches. Construct required foundation supports and bearing seats according to Division 500, section 204 and the plans. Construct aggregate approach ramps in accordance with sections 204, 209, and the plans.

571.06 Acceptance. Furnish a production certification for object markers.

Measurement

571.07 Measure the Section 571 items listed in the bid schedule according to Subsection

109.02.

Payment

571.08 The accepted quantities, measured as provided in Subsection 109.02 and above, will be paid at the contract price per unit of measurement for the Section 571 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section.