CJD Intake Construction Stair Repair (SOW)- DRAFT.pdf

Statement of Work (SOW)

Intake Construct Stair Landing Repair

Chief Joseph Dam (CJD)

01 April2026

1.0 DESCRIPTION OF WORK:

This project aims to repair damaged concrete stairs landing, replace damaged handrail parts, install new stair runner anchors, and seal the concrete surfaces at 3 locations on the intake structure.

Contractors will assess the site and choose the best way to restore the damaged stair landings, handrails, and stair runners at monolith #1 monolith C, and monolith c5 ( S-301: Detail A7 and S-

303 Details E4,C8,and A8

Contractors shall furnish all personnel, equipment, supplies, facilities, transportation, tools, materials, and supervision necessary to perform all work in strict accordance with this Statement of Work, all applicable

Federal, State, and local codes and regulations, and relevant industry standards. The scope includes the repair of damaged concrete stair landings that cantilever out from the Intake and closure Wall structures. The scope includes the replacement of stair runner anchors, cleaning & sealing of exposed rebar, cleaning & sealing of handrail anchor posts, and sealing of the newly rehabbed concrete landings. Chief Joseph Dam (CJD), Bridgeport, WA 98813.

2.0 BACKGROUND:

The concrete stair landings at Unit 1 Intake monolith #1 and Closure wall monolith C1 are now so deteriorated that they need immediate attention. The stairwells at monolith #1 and monolith C1 serve as life-safety egress routes for the intake galleries at elevations 948’ and 960’, respectively, for access up the 970’ top deck The intake galleries are over 2000 feet long, with egress routes in the center of the structure at the intake stair tower and at mono #1 and mono C1. Monolith C5 is the access stairs to the upstream boat house.

3.0 GENERAL REQUIREMENTS FOR ALL WORK:

The Contractor shall perform all work according to accepted industry standards, safety procedures, and applicable laws, regulations, codes, and standards to include, but are not limited to, the Unified Facilities

Guide Specifications (UFGS), Unified Facilities Criteria (UFC),and International Building Code (IBC).

3.1 The contractor is responsible for conducting business between the hours of 0700 and 1630

Monday through Thursday, except federal holidays or when the government facility is closed due to local or national emergencies, administrative closings, or similar government-directed facility closings.

3.2 Work under this Statement of Work (SOW) must be planned and accomplished in a way to minimize any interferences and inconveniences to the government, the public, and other contractors.

3.3 After the award, but before purchase and installation, the contractor must conduct a site walkthrough survey with government personnel to confirm exact dimensions, specifications, and requirements.

3.4 The contractor is responsible for maintaining logistic traffic flow around the stair intake areas.

Road deck closures are not permitted during repair or installation work. Traffic may be reduced near the construction site with road flaggers.

3.5 The contractor must be responsible for performing a safety survey of the stair landings at Unit 1

Intake monolith #1 Closure wall monolith C1 and Boathouse access monolith C5 before any demolition to replace or repair the damaged stair components or stair guardrail connections. The intake concrete stairs landing is part of the monolith #1 Closure wall monolith C1, which are over 2000 feet long, with egress routes in the center of the structure.

3.6 After construction is completed and officially closed, the contractor must give a one-year warranty covering any defects in materials or workmanship. Any faulty parts or components must be fixed or replaced quickly, and always within one month. This warranty also covers damage that happens during shipping, delivery, or installation. All repairs and replacements must be done at no extra cost to the government, including freight and labor. Normal wear and tears are not covered by the warranty.

3.7 The Contractor must remove all waste incidental to the delivery of this contract from the site and legally and ethically dispose of it to bring no direct or indirect liability onto the government.

3.8 Construction materials waste at the site must also be removed and disposed of by the contractor, either off-site from CHJ or at a specific on-site location with the government's pre-approval and permitting. The contractor must not leave any construction waste piled up at the job site by the end of the workday.

3.9 The contractor must be bonded, licensed, and insured. As part of their bid, the contractor must submit three (3) past example projects for stair replacement or new installation of a similar design to this project.

3.10 Installation shall be in conformance with manufacturer’s printed literature, and as indicated in the drawings in relation to:

• Adhesive anchors

• Mechanical anchors

• Power actuated fasteners and to steel

3.11 The contractor is responsible for repairing the damaged concrete stairs intake and replacing all damaged handrail parts. The contract drawings show the complete structure. The contractor must manage all construction methods, including shoring, temporary construction loads, and temporary bracing, in accordance with UFC/IBC codes and meet all necessary USACE safety requirements (Safety Manual EM 385-1-1).

3.12 The contractor should prime all field-exposed steel. Clean and prime field bolt heads, nuts, field welds, and any abrasions in the shop coat using paint of the same quality as the shop coat.

3.13 Use ASTM A780/A780M zinc-rich paint to repair any damage to galvanized coatings resulting from handling, transporting, cutting, welding, or bolting. Do not heat surfaces after applying the repair paint. The contractor should prime all field-exposed steel. Clean and prime field bolt heads, nuts, field welds, and any abrasions in the shop coat using paint of the same quality as the shop coat. Use ASTM A780/A780M zinc-rich paint to repair any damage to galvanized coatings resulting from handling, transporting, cutting, welding, or bolting. Do not heat surfaces after applying the repair paint.

3.14 Preparation & Inspection:

Inspecting concrete for cracks, spalling, or loose sections. Use a pressure washer or wire brush to remove loose concrete, dirt, and debris.

3.16.1 Mechanical Repair Concrete Steps:

a. Formwork: Build L-shap1.ed wood forms to hold the patch, especially if repairing steps' corners.

b. Application: Apply a bonding agent for the old concrete. Mix high-strength exterior concrete repair mortar or quick-setting cement.

c. Placement: Pack the repair material firmly into the forms, remove air pockets, and finish the surface to match the existing texture.

d. Cure: Allow the concrete to be cured fully (typically 24-48 hours) before installing railings.

3.16.2 Position and Mark

a. Dry-fit the new steel rail on the stairs, ensuring it is level and secure.

b. Mark the hole locations on the concrete with a pencil or marker, ensuring they are at least 3-4 inches away from the edge to prevent breaking.

3.16.3 Drill Mounting Holes:

a. Use a rotary hammer drill with a masonry bit sized for the anchors

(typically-inch for heavy-duty).

b. Drill holes to the required depth, usually and one-half to 3 inches deep.

c. Vacuum or blow out all dust and debris from the holes.

3.16.4 Install Steel Guard Rails:

a. Method A (Mechanical Anchors): Insert sleeve anchors or large diameter tap cons.

b. through the base flange and into the holes. Tighten the nuts, which forces the sleeve to expand, securing the rail.

c. Method B (Chemical/Cement Anchors): For added strength, fill the holes with anchoring cement, then insert the rail posts.

3.16.5 Final Inspection & Finishing:

a. Tighten all bolts firmly but avoid overtightening to prevent cracking the new concrete.

b. Inspect for stability.

c. Clean the metal railings and apply suitable metal paint or sealant to prevent rust

4.0 SCOPE OF WORK:

The concrete stair landings at Unit 1 Intake monolith #1, houseboat upper landing, and Closure wall monolith C1 have deteriorated to the point of failure. The purpose of this project is to perform comprehensive repairs on concrete stair landings and to replace the damaged sections of the hand railings, replace stair runner anchors, and seal the concrete surfaces.

4.1 Remove all damaged or spalled concrete, roughen the concrete surface, and form and patch as necessary. Refer to design drawing S-303. Inspect for rusted or damaged reinforcing bars.

If any exposed rebar is unclean, remove rust or replace damaged sections with rebar of the same size, ensuring a minimum of 4 inches of embedment and using epoxy-coated rebar if specified. Install Simpson-HP Epoxy anchors or an equivalent product for all new concrete anchors. Construct forms for the epoxy topcoat to protect the surface and prevent slipping.

Seal the top of the landing with epoxy and apply aggregate to achieve a textured finish.

4.2 Upon removal, the existing damaged guardrail system, like nuts and bolts, becomes the

Contractor's property. Disposal off-site must comply with Federal, Local, and State regulations.

4.3 The contractor must maintain a clean work area at all times. Containers for excess and/ or waste materials, rubbish, etc., must be provided by the contractor at the site. The contractor must remove and dispose of all debris from Government property at a state-approved disposal site, unless otherwise specified.

4.4 The contractor must protect both the environment and the facilities. When storing, fueling, or lubricating equipment and vehicles, take every precaution to prevent spills and evaporation.

4.5 Storage and use of lubricants, and daily fueling of machinery and equipment, must occur at least 50 feet from any drainage inlets, water bodies, or environmentally sensitive areas.

4.6 The contractor must repair all damage to the surrounding area caused by their construction activities at no expense to the government. The contractor is required to comply with all

Federal and State environmental requirements.

5.0 CONDITIONS AFFECTING CONSTRUCTION:

5.1 Work Coordination: The Contractor must attend a pre-construction meeting before commencing construction activities. The Contractor must contact the Quality Assurance Representative within five (5) days of issuance of the Notice to Proceed (NTP) to establish a date and time for the pre-construction meeting. The contractor’s personnel, as well as responsible and necessary administrative staff, will be required to attend this meeting. Procedures for proper invoicing and payment, schedule, contact information, etc., will be exchanged at this time. The Contractor must submit a proposed site-specific construction schedule and a proposed site-specific work plan at the meeting for approval, unless the Government has previously approved them. The schedule must be sufficiently detailed to identify all aspects of the work, including any special circumstances or conditions.

5.2 Interface with Others: While this contract is underway, the road near the stair intake will likely be used by the government and the public. Plan and carry out your work to avoid causing problems or delays for them or for other contractors. Make sure to clean up all work areas at the end of each day.

5.3 Construction Restrictions:

5.3.1 Working Hours: The Contractor is required to work within the hours of 0700-1630, Monday through Thursday. The contractor must not work on federal holidays.

The contractor will not be reimbursed when the Government facility is closed for holidays, national emergencies, administrative closings, or similar

Government-directed facility closings.

5.3.2 Laws, Rules, Regulations and Compliance: All Contractor and subcontractor employees must observe and comply with all applicable local, state, and Federal laws, rules, and regulations, including those concerning fire, safety, sanitation, security, vehicle operation, and hazardous material handling while performing this contract. All construction must meet or exceed applicable industry standards related to materials and artistry. The Contractor must be responsible for obtaining any permits, approvals, or licenses required to perform the work.

6.3.3 Government Furnished Property and Services: The Contractor is responsible for providing all materials to complete this project. Unless specified in the contract, the Government will not provide any equipment, water, electricity, telephone services, or other resources.

5.3.4 Safety Requirements: The contractor must comply with the latest online version of Corps of Engineers Safety and Health Requirements and all applicable Federal, State, and local safety codes and practices. It is the contractor’s responsibility to ensure public safety during the entire duration of the contract. Necessary signs, barriers, warning devices, etc. must be maintained by the contractor at the contractor’s expense. Contractor employees must comply with the minimum working attire and

PPE requirements as stated in the U.S. Army Corps of Engineers Safety and Health

Requirements (Safety Manual EM 385-1-1).

6.0 SECURITY REQUIREMENTS:

The Contractor must use the E-Verify Program (http://www.uscis.gov/e-verify) website to pre-screen

Candidates and meet employment eligibility requirements. The Vendor must make sure each Candidate has two valid government-issued IDs before enrollment to enter accurate information into E-Verify.

The initial list of verified or eligible Candidates must be sent to the COR within 3 business days after the contract is awarded. Refer to the specs section 01 14 00 WORK RESTRICTION for details and requirements.

7.0 SUBMITTALS:

The following submittals will be sent to the Government via email and kept on the job site; if a job trailer is not available, they will be kept on site in the superintendent’s vehicle: the Accident Prevention Plan and the Work Plan/Quality Control Plan. At a minimum, Accident Prevention must include the following documentation: equipment safety checklists (initial & daily), required training records, Activity Hazard

Analyses, safety meetings, crane inspections & crane operator qualifications (if required), and the qualifications of the SSHO.

The following documentation also needs to be submitted and approved by the government to see specifications section 01 14 00:

• Concrete Mix Design and Test Certificates: Per Spec Section 03 30 00 Cast-in-Place Concrete.

• Installation Plan: Narrative describing installation procedures for items identified in Spec. Section 01

14 00.

8.0 PERFPRMANCE PERIOD:

The contractor is required to commence work under this contract within ten (10) calendar days after the issuance of the Notice to Proceed (NTP), prosecute the work diligently, and complete all work no later than

45 calendar days after the issuance of the NTP. The stated completion time includes final cleanup of the premises and the submission of all required close-out documentation.

9.0 POINTS OF CONTACT:

Mr. Bennett, Daniel S( Scott ), CJD Technical Support Chief (daniel.s.bennett@usace.army.mil) Alternate: Mr Loc Huynh (Luke), Seattle District OPS (Loc.t.huynh@usace.army.mil)

10.0 REFERENCE:

10.1 U.S. Army Corps of Engineers Safety and Health Requirements (Safety Manual EM 385-1-1).

10.2 UFC Structural design, Fabrication, and Constructional in accordance with the government code

Edition of the IBC and Engineering manuals

10.3 International Building Code ( IBC) 2021

10.4 ACI 318-19 Building Code requirements for Structural Concrete

10.5 AICE 7-16 American Society of Civil Engineering and Associated Criteria for Building and

Other Structures

10.6 AWS D1.1 2017 Structural Welding Code-Steel.

12.0 ATTACHMENTS:

ATTACHMENT 1-10: PICTURES OF EXISTING DAMAGED CONCRETE STAIRLANDING

INTAKE

Figure 1 : Damaged concrete stair landing by the Intake door Figure 2: Damaged concrete landing by corner

Figure 3: Cracking lines on the concrete stair landing Figure 4: Damaged concrete by the stair stringer head

Figure 5:Damaged perforated metal fences wrap around the stair handrail from a bird's view.

Figure 6: Damaged perforated metal fences wrap around the stair handrail side view

Figure 7: The corner of the concrete landing exhibits damage, and the steel bolts that secure the stair stringer to the concrete stair landing are absent.

Figure 8: Damaged perforated metal fences wrap around the stair handrail side view .

Figure 9: Damaged concrete stair landing by intake . Figure 10: Damaged guard rails and eroded fence near the stair intake

Figure 11: Steel guard rails erosion at stair landing intake Figure 12 shows a damaged concrete stair landing, with the damaged areas marked as “D” and the steel guard rail visible from a bird’s-eye view.