Attach-2-Specifications.pdf

PROJECT SPECIAL PROVISIONS FOR:

Wichita Mountain Wildlife Refuge

PAVEMENT AND BRIDGE REPAIRS AT:

West Gate Road

Seven Mile Scenic Road

Blue Beaver Creek Bridge

PREPARED BY:

October 4, 2019

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Project Special Provision 01 – Traffic Control Requirements

1.0 Description.

1.1 This work consists of controlling and protecting public traffic adjacent to and within the project. This includes traffic protection for pavement repairs and bridge improvements.

1.2 Coordinate all work with the Contracting Officer (C0) and/or the Contracting Officer’s Representative

(COR) as directed by the CO.

2.0 Material

2.1 Traffic Control materials shall conform to Section 635 of The Standard Specification for Construction of Roads and Bridges on Federal Highway Projects (FP-14).

3.0 Construction Requirements

3.1 Provide a Traffic Control Supervisor who by certification or experience is qualified to develop and maintain the Traffic Control Plan.

3.2 The design, implementation and maintenance of traffic control during all phases of work is the responsibility of the Contractor. The Contractor is required to develop a Traffic Control Plan specifying all aspects of the traffic control work necessary to accommodate the proposed project. Submit the

Traffic Control Plan to the CO/COR for approval at least 30 days before intended use. The Traffic Control

Plan shall cover both the pavement repairs and the bridge improvement aspects of the work. Separate

Traffic Control Plans may be submitted for each aspect of the project if the Contractor desires.

3.3 Perform work in a manner that ensures the safety and convenience of the public and protects the residents and property adjacent to the project. Accommodate public traffic and maintain the traffic control plan on roads adjacent to and within the project until the project is accepted by the CO/COR.

3.4 Maintaining roadways during work as follows:

3.4.1 Maintain intersections with trails, roads, streets, businesses, parking lots, residences, garages, farms, and other features;

3.4.2 Maintain a dust-free traveled way such that visibility and air quality are not affected and a hazardous condition is not created;

3.4.3 Remove accumulations of soil and other material from traveled way;

3.4.4 Do not allow water to pond on the traveled way; and

3.4.5 Maintain the roadway, detours, and diversions in a safe and acceptable condition.

3.5 If corrective action is requested and the corrective action is not taken immediately, the condition may be corrected, and the cost of the corrective action deducted from monies due the Contractor.

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3.6 Maintain roadways and traffic control for public traffic during periods when work is not in progress.

3.7 Limitations on construction operations with the roadway is open to public traffic as follows:

3.7.1 Operate equipment in the direction of traffic, where practical;

3.7.2 For shoulder drop-offs of 3 inches (75 millimeters) or less, provide "Low Shoulder" warning signs.

For shoulder drop-offs in excess of 3 inches (75 millimeters), provide a 1V:3H fillet with "Shoulder Drop-

Off" warning signs. Complete the construction of shoulders adjacent to traffic lanes to the same elevation within 7 days;

3.7.3 Provide minimum lane widths of 10 feet (3 meters). Use barricades, drums, or other acceptable devices to delineate traffic lanes through areas where the edge of pavement or intended path has been obliterated by construction operations;

3.7.4 Locate staging areas at least 30 feet (9 meters) from the traveled way or behind acceptable traffic barriers. Obtain approval of the location and access to staging areas. Store unused traffic control devices at staging areas;

3.7.5 Park equipment at least 30 feet (9 meters) from the traveled way or behind acceptable traffic barriers;

3.7.6 Provide parking areas for employee’s personal vehicles in approved areas;

3.7.7 Provide uninterrupted two-way communications between flaggers and also between flaggers and pilot cars unless flaggers are able to see each other and communicate. Use communications devices approved by the CO/COR. Citizen band radios are unacceptable. Make communication devices available to the CO/COR as necessary;

3.7.8 Where switching traffic to a completed lane, provide adequate personnel and equipment to set or relocate traffic control devices;

3.7.9 Limit construction-caused delays to public traffic to a maximum of 30 minutes per passage through the project.

3.7.10 Maintain existing guardrails, barriers, and bridge railings until removal is necessary for construction. Use a temporary barrier or appropriate channelizing devices while the guardrails and bridge rails are absent. Install permanent barriers, guardrails, and bridge rails as soon as possible to minimize risk to the public.

3.8 Nighttime operations will not be permitted for any work.

3.9 Provide a Traffic Control Supervisor and furnish the Traffic Control Supervisor's name, address, and

24-hour telephone numbers at the preconstruction conference.

3.9.1 During the contract, including periods of suspensions and work stoppages, the Traffic Control

Supervisor shall perform the following:

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3.9.1.1 Implement the traffic control plan.

3.9.1.2 Coordinate traffic control operations, including those of subcontractors and suppliers.

3.9.1.3 Ensure the condition, position, and applicability of traffic control devices in use.

3.9.1.4 Immediately correct traffic control deficiencies.

3.9.1.5 Coordinate traffic control maintenance operations with the CO/COR.

3.9.1.6 Coordinate and ensure that traffic control devices are furnished, installed, maintained, removed, stored, replaced, relocated and cleaned according to Subsection 635.04. Ensure unused traffic control devices are properly handled and stored.

3.9.1.7Inspect traffic control devices, including those in staging, storage, material sources, and disposal areas.

3.9.1.8 Provide temporary flagging assistance.

4.0 Measurement and Payment

4.1 Traffic control will not be measured for payment but will be considered a lump sum unit.

5.0 Basis of Payment

5.1 Payment for the above described work, including all material, equipment, labor and any other incidental work necessary to complete this item, will be considered completely covered by the following pay items:

“Traffic Control for Pavement Repairs” per lump sum “Traffic Control for Bridge Improvements” per lump sum

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Project Special Provision 02 – Masonry Repair Requirements

1.0 Description.

1.1 This provision contains the requirements for cleaning, repairing and sealing masonry for this project.

1.2 Coordinate all work with the Contracting Officer (CO) and/or the Contracting Officer’s

Representative (COR) as directed by the CO.

1.3 This work shall be performed between September 1 and March 15 to avoid disturbance of birds nesting on or around the bridge.

1.4 This work is intended to be complete during dry weather conditions when shoring and damming of

Blue Beaver Creek is not required. Coordinate scheduling of the work with the CO/COR. Only begin work when creek conditions, weather conditions and the forecast are favorable for an extended period of time. Recently completed work shall be protected from weather and the creek until such time as the work is acceptable to the CO/COR.

1.2 Coordinate disturbance of nesting birds with the CO/COR

1.3 Stone bridge curbs are excluded from this scope of work.

2.0 Construction Requirements.

2.1 Surface Preparation

2.1.1 All masonry surfaces shall be cleaned using a high pressure, hot water and non-acidic detergent wash.

2.1.2 The Contractor shall submit the proposed masonry detergent to the CO/COR for approval two weeks prior to commencing work. Provide a commercially available products that has a proven record of cleaning masonry without altering, damaging or discoloring the masonry units, mortar or surrounding materials. After inspection of the site and materials, select the least aggressive detergent capable of achieving the desired results. Use products that have a minimum five year performance record on similar projects. If necessary, provide the associated pre and post treatment material to neutralize the long term effects of the chemicals.

2.1.3 All environmental control set forth by the detergent manufacturer shall be in place prior to cleaning. Other areas shall be masked off as appropriate. Care shall be exhibited to prevent spray run-off from entering the surrounding area and creek. The Contractor shall be prepared to collect and remove spray water.

2.1.4 Provide water blasting equipment including a water tank, pumps, high-pressure hose, wand with safety release cutoff control, nozzle, and auxiliary water re-supply equipment. Operate equipment in accordance with manufacturer's recommendations and maintain in good working order. Do not operate

6 | P a g e the equipment at a pressure which will cause etching or other damage to the masonry surface or mortar joints. Determine discharge rate on a case by case basis during test spraying.

2.1.5 Test cleaning methods for desired results on small inconspicuous area of a masonry wall. Allow tested area to dry before a determination is made regarding effectiveness and adjustment of tactics.

2.2 Masonry Repair

2.2.1 Do not perform work when weather conditions adversely affect the quality of the finished product.

2.2.2 Tuckpoint the areas shown on the plans.

2.2.2.1 Cut all joints back to sound, solid, material. Leave a clean, square face at the back of the joint to provide for maximum contact of repointing mortar. Remove non-original mortar from previously repaired joints to a minimum depth of 2.5 times the width of the joint. Clean joints, followed by blowing with filtered, dry, compressed air or vacuum.

2.2.2.2 Soak exposed surfaces of masonry adjacent to joint with water prior to repointing. Allow time for excess water to run off and evaporate prior to repointing. Joint surfaces shall be damp but free from standing water.

2.2.2.3 Masonry mortar shall be Type N in accordance with ASTM C1329. Use a commercially available mix. Provide mortar that is similar in color and texture to the existing mortar when cured. Match repaired surfaces with adjacent existing surfaces in all respects. Use products in accordance with the manufacturer's instructions. Mock-ups are not required, but the Contractor is solely responsible for matching the new mortar to color and condition of the old. The Contractor is solely responsible for all aspects of the mortar including the type, storage, mixing, color matching, workability, tooling etc.

Submit the mortar mix and manufacturer’s data sheets to the CO/COR for approval.

2.2.2.4 Compress mortar into the joints using common tooling. Compress each layer thoroughly. When mortar is thumbprint hard at the surface, finish the joints to match the original joints.

2.2.3 Remove mortar spills, splashes or drips from non-repair areas immediately to prevent staining.

2.2.4 The Contractor is solely responsible for the curing process. Protect mortar from direct sun and high winds for the first 72 hours after installation or from driving rain for the first 24 hours, using plastic sheeting if necessary. Do not create a greenhouse effect by sealing off air movement in an attempt to protect the wall with plastic. Allow for air circulation to facilitate the carbonation process.

2.3 Masonry Sealing

2.3.1 After completion of masonry repair, a protective coating shall be applied to the masonry walls. The coating shall be a siloxane or silane based sealer. The Contractor shall submit the proposed masonry sealant to the CO/COR for approval two weeks prior to commencing work. Provide a commercially available products that has a proven record of sealing masonry without altering, damaging or discoloring the masonry units, mortar or surrounding materials. Use a product that has a minimum five year

7 | P a g e performance record on similar projects. If necessary, provide the associated pre and post surface treatment to maximize effectiveness of the sealant.

2.3.2 All environmental control set forth by the sealer manufacturer shall be in place prior to applying.

Other areas shall be masked off as appropriate. Care shall be exhibited to prevent spray from entering the surrounding area or the creek. The Contractor shall be prepared to collect and remove over spray.

2.4 Repair or replace defective work or work that at the discretion of the CO/COR does not match surrounding masonry features.

3.0 Method of Measurement.

3.1 The surface preparation for Masonry Cleaning – High Pressure, Hot Water, Non-Acidic Detergent will not be measured for payment, but will be considered a lump sum unit.

3.2 Masonry repair for Masonry Tuckpointing will be measured to the nearest 5 square feet.

3.3 Masonry sealing for Masonry Sealing – Apply Clear Penetrating Weather Proof Coating will not be measured for payment but will be considered a lump sum unit.

4.0 Basis of Payment.

4.1 Payment for the above described work, including all material, equipment, labor and any other incidental work necessary to complete this item, will be considered completely covered by the following pay items:

“Masonry Cleaning – High Pressure, Hot Water, Non-Acidic Detergent” per lump sum “Masonry Tuckpointing” per square foot “Masonry Sealing – Apply Clear Penetrating Weather Proof Coating” per lump sum