REV Sioux Falls Plaza Concrete 2024 SOW.pdf

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CONSTRUCTION SCOPE OF WORK

U.S. GENERAL SERVICES ADMINISTRATION, ROCKY MOUNTAIN REGION 8

Date: Mar 7 2024 Revision: 1 (Date May 20, 2024)

Section 1: Project Title Replace Colored Concrete Plaza Sidewalk, Federal Courthouse, Sioux Falls, South Dakota

Section 2: Project Location, Building Name, & Building Number Sioux Falls Federal Courthouse 400 S Phillips Ave Sioux Falls, SD 57104 Building Number: SD0021

Section 3: Contact List

Contracting Officer (CO) Name: Kristen Feickert Email: Kristen.feickert@gsa.gov Address: 115 4th Ave SE, Aberdeen, SD 57401 Phone (O): 605-252-3355 Phone (C): 605-877-1200

Property Manager Name: Jeremey Backous Email: jeremey.backous@gsa.gov Phone (C): 605.228.4068

Project Manager/Contracting Officer Representative (COR) Name: Chad Andrews Email: chad.andrews@gsa.gov Address: 400 S Phillips Ave., Ste.111 Sioux Falls, SD 57104 Phone (C): 605-518-0733

Section 4: Project Background & Project Description The General Services Administration, Region 8, is initiating a project to remove and replace approximately 2,300 square feet of colored concrete sidewalk, to include removing and replacing the base course material. The project is located at the Federal Courthouse in Sioux Falls, South Dakota.

Section 5: Project Objectives The contractor shall provide labor, materials, equipment and supervision necessary to perform:

1) Locate Utilities:

a. Locate utilities NOT owned by GSA

b. Locate and mark GSA-owned utilities; coordinate with the Project Manager and the Property Manager to access as-built utility drawings

2) Pedestrian Control:

a. Furnish and deploy pedestrian control measures to allow safe, continuous access to the building entrance.

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3) Traffic Control:

a. Furnish and deploy traffic control measures to allow safe, continuous access within the parking area.

4) Contractor shall coordinate sequencing and control measures with the Project Manager and the Property Manager.

a. At least one building entrance door at the front of the building shall be accessible for the duration of construction.

b. Contractor shall provide barricades to prevent access of the public into the work areas; and shall protect the public at all times.

5) General requirements for Sidewalk:

a. Concrete to have compressive strength of 4,000 psi or greater, as specified below.

b. Concrete Mix Design by Contractor shall be suitable for the job conditions.

i. Contractor shall Provide low embodied carbon concrete that meets the global warming potential (GWP) limits where practical per the P100 4.8.5 LOW EMBODIED CARBON CONCRETE.

c. Reinforcements - Bars, fabrics, connectors, and chairs shall be suitable for the job conditions.

6) Remove concrete to be replaced.

a. Demolition of the existing concrete can be done during normal hours.

i. Contractor will ensure OSHA Respirable Crystalline Silica Standard 29 CFR 1926.1153 are followed for all

Cutting and removal of existing concrete.

ii. Control dust and debris during all phases of the project.

b. See attachments for approximate repair boundaries.

c. Saw repair boundaries to the full depth of concrete.

d. Remove existing concrete so as to not spall or crack adjacent concrete.

e. Remove existing base material to a depth of not less than 6”.

i. All old concrete and materials to be removed completely from the site.

f. Recycle all demolished concrete if possible, and provide recycling or disposal manifests.

7) Construct steel reinforced colored concrete (Solomon Colors 489 Dusty Rose) sections and repair sidewalk sections, to a depth of not less than 4”; surface area is approximately 3,300 square feet, as shown in the attachments.

i. Color shall match recently replaced concrete and approved by GSA

b. Use sidewalk forms that are of a height equal to the full depth of the finished sidewalk.

c. Provide 6” compacted gravel subgrade suitable for a sidewalk

i. Import granular sub-base, as required.

ii. Compact existing granular sub-base to minimum 95% Standard Proctor density (ASTM D 698).

1. Provide one (1) density test in the center of the new sidewalk section.

d. Form sidewalk and expansion joints to match the pattern, appearance, and dimensions of the existing sidewalk and plaza sections..

i. Place 1/2”x4” expansion joint against all edges of new concrete.

ii. Provide plastic removable reservoir top cap on the expansion joint material. Contractor shall remove top cap after slab cures, and fill void with polyurethane joint sealant; SikaFlex or Sonneborn NP1, or GSA approved equivalent. Contractor shall tool joint sealant to a slight concave in the center.

1. Features of this product: One-component, high-performance, non-priming, gun-grade, elastomeric polyurethane sealant.

a. Color of sealant to match concrete color.

iii. Round joint edges to match radius and appearance of existing concrete.

e. Hammer drill and set ½”, #4 re-bar tie-bars, 24” o.c in the ends of slab. Re-bar tie bars shall be 18” long, with minimum 6” of embedment into the existing concrete. New tie bars shall be anchored in adhesive epoxy.

f. Provide 10ga 6” x 6” wire mesh at mid-depth of the concrete; support as needed to keep mesh in the center of the slab.

g. Contractor shall place a minimum 4,000 P.S.I at 28 day concrete, GSA approved equivalent mix.

i. Concrete features, to include slump and entrained air requirements:

1. The slump at time of placement shall be maintained between 1 (25 mm) and 4 inches.

2. High range water reducers may be used to achieve slump/strength ratio. The water cement ratio shall be kept as low as possible.

3. The entrained air content for this cast in place concrete shall be 4-1/2%-7-1/2%.

4. Batch mix shall have a minimum 480-495 pounds of type I,II,III or V cement material per cubic yard, with 105-120 pounds of fly ash; total cement and fly ash shall be 600 pounds.

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a. No calcium chloride shall be used if admixtures are added to batch mix to enhance temperatures for curing purposes. Non-chloride accelerator can be used in its place.

h. Contractor shall provide a light broom finish after floating and troweling, as soon as concrete will not tear. Broom grooves shall have a depth of 1/16.

i. Temperature at placement shall be minimum 40 degrees and rising.

j. Protection of Concrete: Concrete shall be maintained above 32 F (0 C) until it has attained a compressive strength of

1500 psi (11 MPa). Contractor shall cover the concrete with curing blankets if temperatures drop below 45 degrees F.

in the first 48 hours of cure time.

k. Contractor shall pour three (3) concrete cylinders to be broken in a destructive strength test.

i. One cylinder shall be broken at 72 hours after placement, one at 7 days, and one at 28 days after placement.

ii. The sidewalk shall not be reopened until the new concrete has achieved a minimum 3,500 PSI.

iii. Contractor shall submit brake test results as soon as they get them, so that GSA can reopen the sidewalk as soon as possible.

l. Contractor shall provide 1 wet concrete test; properties to be tested are: percent of air entrainment, inches of slump at placement, and amount of cementitious material in the batch mix.

8) Replace and/or repair any damage caused as a result of this project to pre-construction condition; this includes, but is not limited to other driveway sections, curbs, fencing, and sidewalks.

Revised Picture

Section 6: Proposal Pricing & Site Walk

1) Pre-proposal Site Visit Meeting:

a) The site visit shall consist of a meeting to review construction requirements followed by a walk-thru of the project site.

The meeting shall be attended by the contractor and GSA project personnel, and appropriate sub-contractors.

b) Review existing conditions of the project area including any field verification.

c) Review the solicitation/evaluation requirements.

2) Cost Proposal Requirements:

a) When submitting a proposal, provide a cost breakdown for each task into the following categories: Materials, equipment, labor hours, subcontractor's quotes, overhead, profit, and bond. Pricing shall be broken down by Construction Specification Institute (CSI) divisions.

Section 7: Period of Performance

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Once notice to proceed has been issued, the contractor has 30 calendar days to complete the project. The contractor must also promptly begin the badging process at the time of award. Please allow a minimum of 30 days to complete the badging process. Extensions will be granted for unforeseen conditions and other factors outside of the contractor’s control at the Contracting Officer’s discretion.

Section 8: Universal Scope Requirements

● ALL of the requirements in this section are MANDATORY

● See the attached Universal Scope Requirements document for the full details outlining each item

● Failure to comply with any and all of the requirements will result in the project not being accepted as complete

SAFETY & HEALTH

A. Safety and Health Program E. Accessibility (ABAAS)

ENERGY, SUSTAINABILITY & ENVIRONMENTAL

G. Sustainable Purchasing H. Construction Waste Diversion I. Site Work (Stormwater/Erosion, Soil Disturbance, and Utility Locates)

Section 9: Submittals

1) Contractor shall submit a Method of Procedures (MOP) to the GSA Delivery Project Manager (PM) for approval prior to commencement of work. At a minimum, the MOP shall include:

a) Project schedule (to include critical path, major milestones, long lead time items, mob & de-mob, inspection dates, substantial completion, and occupancy dates)

b) Service/Utility Outages (if necessary)

c) Phasing schedule (if necessary)

2) Manufacturer's specifications, instructions and material specification sheets in original form

3) Submittal register/ log for all products specified to establish a standard of quality to include. Submittal register response by the government shall be (14) calendar days or less.

a) For pricing purposed please assume 1 electronic copies to be sent to the project manager. Physical samples are only required for color selection and shall be mailed to GSA’s project manager. Distribution list including final quantities will be finalized after receipt of the submittal log/ register by GSA project manager.

4) If product samples are not submitted in a timely fashion, any delays caused by the contractor will not warrant a time extension.

After completion of all work, the Contractor shall submit to the project manager the manufacturer's specifications, instructions and material specification sheets in original form. Additionally, the Contractor shall submit all inventory changes (removals, additions, upgrades, etc., and new condition codes) to the COR.

5) Submittal response by the government shall be (14) calendar days or less.

SUBMITTAL DUE DATE

1. Performance/Experience References With Proposal

2. Alternative payment protection Within 14 calendar days after Award

3. Insurance Certificate Within 14 calendar days after Award

4. Security Clearances Forms Within 14 calendar days after Award

5. Standard Form(s) 1413 Within 14 calendar days after Award

6. Method of Procedures (MOP) Within 14 calendar days after Award

7. Safety and Health Program (see USR) Within 28 calendar days after Award

8. Waste Management Plan (see USR) Within 14 days of Notice to Proceed

9. Payrolls Weekly after construction start date

MATERIAL SUBMITTALS:

10. Concrete Mix Design & Curing Plan Within 14 calendar days after Award

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11. Steel Reinforcing Cut Sheets Within 14 calendar days after Award

12. Concrete Break Test Results Within 72 hours of test

13. Joint Sealant Cut Sheets Within 14 calendar days after Award

Section 10: General Requirements

1) Contractor Use of the Premises During the period of the project, the contractor will have access to the site during all hours. Loud work that may interrupt court proceedings may have to be done after normal work hours. The contractor will need to coordinate with the Contracting Officer Representative to arrange access. The contractor shall make every effort to cause a minimum of damage to parking lots, any other paved areas, any items that need to be moved during the course of the project, and any areas not included in this scope of work. Any damage caused will be repaired at the contractor’s expense.

2) Progress Meetings Progress meetings are not required for this project. The project manager and building team representative shall make periodic inspections of the work progress.

3) Equipment The contractor shall provide all equipment associated with the entire project, operate in a safe manner and adhere to all OSHA and GSA standards.

4) Equipment and Material Storage The contractor shall provide and store all equipment, the materials specified above, and any other materials required completing the project. The materials are required to be kept clean and dry throughout the duration of the project.

Contractor to coordinate with building manager for location of storage sheds.

5) Sanitary Facilities Provide and maintain temporary toilet facilities in accordance with State Health Department and GSA requirements.

6) Electricity, Water, and Gas GSA will pay for electricity, water, and gas during the course of this project. The contractor is responsible for making connections to the existing systems. Temporary electrical work shall meet the requirements of NFPA 70-1996 (NEC), Article

305. When temporary connections are removed, restore existing utility services to their original condition.

7) Contractor’s Field Office The contractor may provide an office for their own use. Size, location, and construction shall be subject to approval.

8) Fire Watch Contractor shall be responsible for providing fire watch if required per attached GSA fire watch guidelines.

9) Fire Alarm Impairment and Hot Work When a fire suppression or alarm system impairment is required, contractor shall provide written outage request to GSA for approval in advance of impairing any systems. Contractor shall be responsible for having a GSA approved NICET certified fire alarm contractor perform all system impairments. During fire alarm/suppression impairments or hot work procedures, contractor shall provide a fire watch per the GSA Regional Fire Watch Guidelines.

10) Protection of Public The building site will continue to be used by tenants. The contractor shall fence, barricade, or otherwise block off the immediate work area to prevent unauthorized entry. The contractor shall illuminate barricades and obstructions at night and maintain safe building access and egress for tenants.

11) Housekeeping The project site shall be kept in a neat, orderly, and safe condition at all times. The contractor shall provide enough containers for collecting construction debris and construction materials to be recycled. The contractor shall wet down dry materials and rubbish to prevent blowing dust and keep volatile wastes in covered containers.

12) Transportation and Deliveries The contractor shall arrange deliveries of materials in accordance with construction schedules; coordinate with COR to avoid conflict with other tenants and other work conditions at the site. Contractor must make GSA PM & CO aware of any lead times that may affect the project schedule.

13) Cleaning Before scheduling the final inspection, the Contractor shall accomplish six items: (1) Remove all tools, equipment, surplus material, and rubbish; (2) Restore or refinish, to original condition, surfaces that are damaged due to the work of this

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14) Disruptive Work All painting, staining, or other activity which may cause noxious or undesirable fumes and/ or any noisy work that may be disruptive to the tenants/ public must be performed after normal working hours. The use of paint or stain that does not generate odors is preferred and may be required if the space will be occupied the following day with prior written approval from GSA.

Section 11: Badging & Security

1) Contractor is responsible to follow GSA’s security and badging requirements as detailed in the Badging & Security Requirements (Vendor Fitness Determination Training Manual).

2) US Access shared enrollment centers can be found at fedidcard.gov. Travel distances to the nearest center should be accounted for during the badging process.

Section 12: Payments

1) Information regarding payment requests and payment is in the solicitation/ contract. Please contact the CO if you have any questions regarding payments.

Section 13: Substantial Completion & Final Inspection

1) When project, or designated portion of project is complete, request a final inspection. Upon receipt of request that project is substantially complete, the Contracting Officer will proceed with the inspection within ten days of receipt of request or will advise the contractor of items that prevent the project from being designated substantially complete.

Section 14: Attachments

1) Universal Scope requirements http://fedidcard.gov/