20-0077 Missile Deck Redesign SOW 10-30-26.pdf

55th Civil Engineer Squadron

STATEMENT OF WORK

FOR ARCHITECT-ENGINEER (A-E) SERVICES

OFFUTT AFB PROJECT:

SGBP 20-0077

TITLE: Install C2F Campus Static Displays (Deterrence Park) Building 1000

Offutt AFB, Nebraska

Oct. 30, 2026

1. SCOPE: The work covered by this Statement of Work (SOW) consists of furnishing all labor, equipment, and materials; performing all necessary travel and services required to compile engineering data; furnishing revised plans, revised specifications, and a revised cost estimate covering the work required for the investigation and design revisions for the title project.

2. ADMINISTRATIVE PROCEDURES: The A-E shall assign a Project Manager from their staff as a single point of contact for this project. The Contracting Officer or designated representative shall be advised, in writing, of any change in this appointment during the performance of this contract.

3. DESCRIPTION OF PROJECT:

Revise 2023 drawings, specifications and estimate to address geotechnical issues and revise project scope IAW this SOW.

4. DESCRIPTION OF WORK:

a. General:

(1) The A-E shall perform all services required (including, testing and site investigation) to update and furnish complete construction documents consisting of contract drawings, technical specifications, design analysis/computations, cost estimate breakdown, and addenda as required, for the accomplishment of the project(s) in accordance with requirements of this Statement of Work. Minor changes will be included at no cost to the Government up to the 90% design. Changes because of error by the A-E shall be made at no additional cost to the government.

(2) The design activities of the A-E must be directed toward the efficient and economical use of architectural, engineering, and construction practices.

(3) The A-E is responsible for providing a completely functional and operational project within the parameters of programming cost and scope of the construction project. The A-E must consider all design options and criteria reductions that may be required in those instances where impending cost overruns are expected. This information will be included in the design analysis.

(a) Cost estimates for the contemplated work shall be furnished with the design submittals as required in this statement of work. The estimate shall have base bid and bid option 1 shown separately.

(b) The final estimate for the base bid shall not exceed $2,000,000. If base bid estimate exceeds this value, please promptly notify the CO. Good judgment and sound professional experience must be employed to ensure this. If all reasonable efforts have been made and the cost cannot be reduced to within the cost limitations, the A-E will refer the matter to the Contracting Officer or designated representative with a statement that "all efforts have been exhausted to stay within the programmed amount and further reduction in cost necessitates reduction in scope or waiver of criteria, specifically..."

(4) The A-E is expected to propose any changes to the Air Force proposals that are consistent with good design, retain quality, and cut cost, or that they otherwise believe will provide a better facility. The 55 CES/CEN Project Manager must approve all design changes.

b. Specific Scope:

A/E shall refresh existing design documents to remove all work associated with the flags and all work near B500, leaving only the missile deck and adjacent seating area as scope for construction. The seating area east of the fire lane shall be separated into bid option number 1, while the missile deck and associated infrastructure west of the fire lane shall remain as the base bid.

A/E shall design a geotechnical solution to solve existing soil bearing capacity issues.

Previously, the Government had tasked construction contractor with accomplishing this work. Their statement of work has been included for reference and use by A/E and is included in Appendix A.

A/E shall include provisions for the modification of existing sprinkler system.

Previously, the Government had tasked construction contractor with accomplishing this work. Their statement of work has been included for reference and use by A/E and is included in Appendix A. The Government will supply CAD of the existing system, to be validated by the contractor.

A/E shall update drawings to reflect the required demolition and replacement of sidewalk due to foundation excavation requirements. Previously, USG had tasked construction contractor with accomplishing this work. Their statement of work has been included for reference and use by A/E and is included in Appendix A.

A/E shall address design deficiencies in the drawings as detailed in correspondence included in Appendix B.

A/E shall investigate storm sewer construction to date on project site and update plans to reflect this work.

A/E shall physically verify and audit the materials accepted by the Government to date and update plans to reflect materials that will now be Government Furnished Contractor Installed (GFCI).

5. PRE-DESIGN CONFERENCE: After or simultaneously with issuance of the Notice to Proceed, a Pre-Design Conference between the A-E and Government Representatives involved with the project will be held to ascertain that the A-E clearly comprehends and understands the various provisions/scope of the Statement of Work he/she is required to perform. During this conference, the programmed requirements will be reviewed and the A-E may present their views as to how they propose to accomplish the project.

6. INSPECTIONS AND ADMINISTRATION:

a. During the course of project preparation, the A-E shall participate in up to four (4) virtual progress and coordination meetings with the Government during the design period. The A-E shall prepare written memoranda of all conferences and meetings, pertinent instructions and information received verbally or otherwise. A copy of this memoranda shall be transmitted to the Contracting Officer or designated representative for information and record, and where necessary, for confirmation.

b. Contract documents for construction contracts shall be submitted in accordance with, and on the schedule established herein. A transmittal letter listing all submitted documents shall accompany submittals. Established submittal dates shall require that documents be in the 55th Contracting Squadron Office (55 CONS/PKA) before the end of that working day, even if submittals must be hand carried.

7. VISITS: The A-E or duly authorized representative shall make periodic visits to the site as part of this contract, as necessary, to complete their work within the specified contract time.

8. FORMATS:

a. Drawings: The A-E shall prepare and furnish drawings to clearly indicate the extent, type, and detailed requirements for all related work. Separate drawings shall be prepared to cover all phases of architectural and engineering categories; drawings of other categories of work as required and/or as accepted by good design practices will be made wherever necessary or desirable to clearly and fully describe the type and extent of the work to be performed. The documents created for construction contracts must be clear enough to allow contractors to assemble and submit their bid without visiting the site, i.e., a requirement to visit the site will not be included as a condition of the construction contract document.

All drawings, specifications, design analysis, cost estimates, reports, manuals, guides, etc., developed by the A-E in support of projects for environmental programs will not contain any company logos, names, addresses, or other related non-government symbols/titles. This includes all pages and charts in the text of the document. The A-E may only be identified in an appendix or in a "prepared by" line on the inside front cover.

Additionally, the first page of each document should be an outline of the product, stating the purpose and use of the document and identifying the organization/office symbol, address, and phone number of the Office of Primary Responsibility (OPR). For projects NOT in support of environmental programs, the A-E may place the company name and/or logo on the project documents as customary practice; however, it is suggested the company address, telephone numbers and personnel names be omitted. For the protection of the Architects and Engineers, the electronic copy of the seal and signature should be omitted. However, they should appear on hard copies of 100% submittals.

b. Specifications: The A-E shall update project specifications and shall include specifications for any new geotechnical scope. The A-E shall indicate in Section 1B, Shop Drawings/Submittals, the quantity of submittals required by the contractor. The quantity indicated on the submittal schedule in Section 1B, shall match any quantity referenced throughout each section of the specification. The technical specifications shall be composed in a clear, understandable language, free from grammatical errors, word omissions, etc., and in accordance with the standards used in Offutt AFB specifications.

Specifications, with index and cover sheet, shall be single-spaced on 8½- x 11-inch bond paper for the final submittal. The A-E shall furnish a copy of the specifications on Compact Disk (CD) formatted in Microsoft Word for Windows and Adobe Acrobat PDF.

If it is not possible to supply this format, supply a list of the available formats. The 55 CES/CEPM Project Manager will select a format from those presented.

c. Preparation of Estimates: The A-E shall prepare detailed cost estimates covering all materials and labor costs incident to the planned and specified construction. In preparing the cost estimates, the A-E shall employ methods and use such sources of cost information as are consistent with the best design practices. Upon completion, the estimates will be prepared in legible form (typing is required) on Air Force Form(s) 3052, Construction Cost Estimate Breakdown, and shall show 15% markup for overhead and 10% markup for profit. The A-E shall include an additional markup for overhead and profit on all subcontractor work. The cost estimate shall be subdivided into the applicable 49 CSI divisions with subtotals for each division. The estimate shall use dollars and cents in the "unit cost" column and shall be rounded off to the nearest dollar in the "total cost" columns. The A-E shall provide one copy with the 100% submittal of the cost estimate with only the line number and items listed with columns 2 through 10 left blank.

d. Preparation of Design Analyses/Computations: The A-E shall prepare detailed computations covering all phases of work to adequately describe the project as required to update the design. In preparing the design computations, the A-E shall employ such methods that conform to the best design practices. The analysis portion will contain statements explaining the designers' assumptions and rationale as to why certain decisions/selections, etc., were made during the design process, i.e., why it is designed as it is. Upon completion, the design computations will be submitted in legible form (typing not required) to the Contracting Officer or designated representative for review and approval.

9. SUBMITTALS:

a. Design Documents--65 Percent: The 65% design documents shall be submitted according to Section 10 Project Schedule in the quantities listed in Section 11 Submittal Deliverables. They will have incorporated all review comments and any plan-in-hand corrections identified. The submittal will specifically include:

(1) Half-size final plans in quantities listed in Section 11.

(2) Specifications complete with Index and Cover Sheet in quantities listed in Section 11.

(3) Cost Estimate per Section 11

(4) Compact Disk(s) with the following items:

a. Drawings : Identical to hard copies in .dwg format, no hidden/frozen layers all

X-refs, pictures etc bound to drawing file.

b. Specifications: Complete specifications with cover sheet, table of contents, standard AF66 with all construction submittal items listed, DD1354. All documents shall be provided in both word and pdf format. In the case of spreadsheets they are to be provided in an editable file format, preferably MS Excel, as well as pdf.

c. Cost Estimates: Editable format, preferably MS Excel.

d. Transmittal Letter: Pdf copy of transmittal letter.

b. Design Documents--95 Percent: The 95% design documents shall be submitted according to Section 10 Project Schedule in the quantities listed in Section 11 Submittal Deliverables. They will have incorporated all review comments and any plan-in-hand corrections identified. The submittal will specifically include:

(1) Half-size final plans in quantities listed in Section 11.

(2) Specifications complete with Index and Cover Sheet in quantities listed in Section 11.

(3) Cost Estimate per Section 11

(4) Compact Disk(s) with the following items:

X-refs, pictures etc bound to drawing file.

b. Specifications: Complete specifications with cover sheet, table of contents, standard AF66 with all construction submittal items listed, DD1354. All documents shall be provided in both word and pdf format. In the case of spreadsheets they are to be provided in an editable file format, preferably MS Excel, as well as pdf.

c. Cost Estimates: Editable format, preferably MS Excel.

c. Final Design Documents--100 Percent: The corrected final design documents shall be submitted according to Section 10 Project Schedule in the quantities listed in Section 11 Submittal Deliverables. They will have incorporated all review comments and any plan-in-hand corrections identified. The submittal will specifically include:

(1) Corrected full-size final plans in quantities listed in Section 11.

(2) Corrected half-size final plans in quantities listed in Section 11.

(3) Specifications complete with Index and Cover Sheet, typed single-space on 8½- x 11-inch bond paper.

(4) Cost Estimate per Section 11

(5) Compact Disk(s) with the following items:

X-refs, pictures etc bound to drawing file.

b. Specifications: Complete specifications with cover sheet, table of contents, standard AF66 with all construction submittal items listed, DD1354. All documents shall be provided in both word and pdf format. In the case of spreadsheets they are to be provided in an editable file format, preferably MS Excel, as well as pdf.

c. Cost Estimates: Editable format, preferably MS Excel.

(6) The transmittal letter shall note the recommended construction performance period.

10. PROJECT SCHEDULE: 45 Calendar days The A/E shall start work within 7 days of the NTP being issued, Design PoP shall be 45 days, with the following submissions:

65% Submittal 95% Submittal 100% FC Submittal

The A/E shall propose a project schedule meeting the prescribed PoP for USG review and approval. USG intends to fast-track this design and associated review periods. To support this timeline, we do NOT anticipate in-person design review meetings and Government design review periods will not exceed 7 calendar days.

11. SUBMITTAL DELIVERABLES

65% Item Sets Drawings Full Drawings ½ Scale 2 Specifications 1 (Digital Only) Design Analysis Cost Estimate 1 (Digital Only) Cut Sheets

DD1354

CD 2

Sample Boards

95% Item Sets Drawings Full Drawings ½ Scale 2 Specifications 1 (Digital Only) Design Analysis Cost Estimate 1 (Digital Only) Cut Sheets

DD1354

100% Item Sets Drawings Full 1 Drawings ½ Scale 2 Specifications 2 Design Analysis Cost Estimate 2 Cut Sheets

DD1354

END STATEMENT OF WORK

APPENDIX A

PRIOR PROJECT STATEMENT OF WORK

STATEMENT OF WORK

Install C2F Campus Static Displays (Deterrence Park), B1000 – Modification 1

SGBP 20-0077

24 February 2026

1. GENERAL: The contractor shall provide all materials, plans, labor, equipment and supervision necessary to do the following:

2. PRINCIPAL FEATURES: The design and work to be performed includes, but is not limited to, all work delineated in project drawings and the following requirements:

2.1. General Requirements

2.1.1. GENERAL - Materials and equipment shall be limited to those specified except that where no specific material and equipment is specified or no basis of design is identified, the Contractor shall use materials and equipment accepted within the construction industry.

2.1.2. DESIGN AND TECHNICAL CRITERIA - Architectural detail, materials and finishes are paramount to the success of this project. Restrictions: No asbestos containing materials (ACM) or lead-based paint shall be used in work performed at the facility.

2.1.3. CODES, STANDARDS AND CRITERIA - The Contractor shall meet the following codes using the most current editions. Where there is a conflict between the RFP and building codes, the most stringent shall apply. When codes are in conflict, the most stringent shall apply. This list is not intended to be a complete list. All work shall be constructed to meet all applicable codes, standards and laws.

The Contractor shall also follow all current national and state codes, regulations and specifications involving civil, architectural, interior design, structural, mechanical, electrical, and environmental disciplines which are applicable to the engineering design and construction industry, including OSHA Safety and Health Standards and Air Force policy on Ozone Depleting Chemicals (ODC’s).

2.1.4. Use of the most current versions of the National Fire Codes and Life Safety Codes, published by the National Fire Protection Association (NFPA), the International Building Code (IBC), and the Architectural Barriers Act (ABA) is mandatory. In case of conflict between code requirements, the most stringent criteria shall apply.

2.1.5. CODES AND REFERENCES

The Contractor shall use the most current code and/or reference published.

• ACI 117-06 – Specifications for Tolerances for Concrete Construction and Materials

• ACI 302.1R-04 – Guide for Concrete Floor and Slab Construction

• ACI 318-05 – Building Code Requirements for Structural Concrete

• AFI 32-1068 – Heating Systems and Unfired Pressure Vessels

• AFI 32-1084, Standard Facilities Requirements Handbook

• AISI – Cold Formed Steel Design Manual

• American National Standards Institute (ANSI) B16.5, Pipe Flanges and Flanged Fittings

• American Standard for Nursery Stock, ANSI 260.1

• ABA - Architectural Barriers Act (ABA)

• ASHRAE Handbooks – Latest Edition

• ASHRAE Standard 62.1-2004 – Ventilation for Acceptable Indoor Air Quality

• ASHRAE Standard 90.1-2004 – Energy Standard

• ASHRAE Guideline 0 - 2005

• ASTM B 32, Solder Metal

• ASTM F-1951

• ASTM F-1292

• ASTM F-1487

• ASTM F-2049

• ASTM F-2075

• ASTM F-2373

• ETL 04-3 – Design Criteria for Prevention of Mold in Air Force Facilities

• ETL 83-1 Design of Control Systems for HVAC

• FC 3-600-01: Fire Protection Engineering for Facilities

• IBC – International Building Code, most current edition

• IMC – International Mechanical Code.

• IPC – International Plumbing Code

• NFPA 101 – National Fire Protection Association 101, Life Safety Code, most current edition

• NFPA 70 - National Electrical Code

• NFPA 70E – Standard for Electrical Safety in the Workplace

• UFC 3-110, Design: Architectural

• UFC 3-420-01FA – Design: Plumbing Systems

• UFC 3-520-01 Interior Electrical Systems

• UFC 3-530-01 Interior and Exterior Lighting Systems and Controls

2.2. Foundation Remediation

2.2.1. Contractors’ proposal shall include excavation, subgrade preparation, geotextile placement, multi-layer biaxial geogrid installation, and crushed rock placement in a burrito-wrapped configuration. The reinforcement zone shall extend 1 foot beyond the concrete footings on all sides.

2.2.2. The design parameters and dimensions are as follows:

Concrete Footing Dimensions: 12.5 ft × 10 ft Reinforced Platform Footprint: 14.5 ft × 12 ft (extends 1 ft beyond footing on all sides) Improvement Thickness: 2.5 ft (below footing bottom elevation) Geotextile + Geogrid Burrito Envelope: 20.5 ft × 18 ft (continuous wrap envelope)

Notes: The 20.5' × 18’-dimension accounts for footprint (14.5' × 12'), burrito sidewall wrapping, closure overlaps, and tensioning clearance. Do not puncture geogrid with bucket teeth or sharp limestone edges.

Maintain consistent machine direction for all geogrid layers.

2.2.3. Materials

2.2.3.1. Geotextile

Type: Woven or non-woven stabilization/separation geotextile Minimum Properties:

Grab Tensile Strength: ≥ 200 lb (ASTM D4632) Permittivity: ≥ 0.05 s⁻¹ (ASTM D4491) UV Stability: ≥ 70% after 500 hr (ASTM D4355)

2.2.3.2. Geogrid

Model: BX-120 biaxial geogrid (or approved equal)

Orientation: Machine direction consistent across layers Minimum Properties (ASTM D6637):

o Tensile Strength @ 2% strain: ≥ 250 lb/ft o Tensile Strength @ 5% strain: ≥ 400 lb/ft o Junction Efficiency: ≥ 90%

2.2.3.3. Granular Fill (Crushed Rock)

Type: Angular crushed stone Max stone size: 3 inches Fines content: ≤ 10% passing No. 200 sieve LA Abrasion: ≤ 40% loss (ASTM C131)

2.2.3.4. EXECUTION & INSTALLATION.

2.2.3.4.1. Excavation

Excavate to footing bottom elevation.

Over-excavate an additional 2.5 feet across the 14.5' × 12' footprint.

Subgrade shall be inspected to identify weak pockets.

Remove unsuitable soils at contractor expense.

2.2.3.4.2. Subgrade Preparation

Subgrade shall be level (±0.05 ft) and non-yielding.

Dewatering shall be provided if seepage or groundwater is observed.

2.2.3.4.3. Geotextile Placement (20.5' × 18')

Place Geotextile flat with no bridging or folds.

Overlaps (if seamed): 2 ft minimum longitudinal, 18” minimum transverse.

Protect from puncture by machinery and aggregate.

2.2.3.4.4. First Geogrid Layer (20.5' × 18')

Place BX-120 geogrid directly on geotextile.

Overlaps: 18–24 inches minimum.

No vehicular traffic directly on geogrid.

2.2.3.4.5. First Aggregate Lift (12")

Place 12” of crushed 3" rock.

Compact until surface is stable, non-yielding.

Wrap geotextile + geogrid upward around sides to create burrito containment.

2.2.3.4.6. Second Geogrid Layer (20.5' × 18')

Place second BX-120 layer over compacted rock.

2.2.3.4.7. Second Aggregate Lift (12")

Place 12 in of crushed 3" rock.

Compact to firm surface.

2.2.3.4.8. Third Geogrid Layer (20.5' × 18')

Install third BX-120 layer over second rock lift.

2.2.3.4.9. Final Aggregate Lift (6")

Place final 6 in of 3" crushed rock to match bottom of footing elevation.

Compact to uniform grade (±0.05 ft)

2.2.3.5. RAIN, SURFACE WATER & WEATHER PROTECTION

2.2.3.6. General

The contractor shall protect the excavation, subgrade, and completed portions of the reinforced foundation platform from precipitation, surface runoff, and ponding at all times.

No work shall proceed during rainfall events that result in softening, pumping, or disturbance of the subgrade or placed aggregate.

2.2.3.7. 5.2 Pre-Rain Planning

Contractor shall monitor weather forecasts daily during foundation construction.

Prior to anticipated rainfall, the excavation shall be graded to promote positive drainage away from the foundation footprint.

Temporary perimeter berms, swales, or sandbags shall be installed as necessary to prevent runoff from entering the excavation.

2.2.3.8. 5.3 Excavation & Subgrade Protection Exposed subgrade shall not be left uncovered during rain events.

If rain is anticipated before placement of geotextile and aggregate, the subgrade shall be protected with temporary plastic sheeting, tarps, or equivalent waterproof covering, securely anchored.

Any subgrade softened, disturbed, or contaminated by rain shall be re-proof-rolled and reworked or removed and replaced at contractor expense.

2.2.3.9. 5.4 Protection During Burrito Platform Construction Once geotextile and geogrid are placed, aggregate lifts shall be placed promptly to prevent wind or water displacement.

Standing water shall not be allowed to accumulate on geotextile, geogrid, or within aggregate lifts.

Pumping or migration of fines into the crushed rock due to rainfall is not permitted; affected material shall be removed and replaced.

2.2.3.10. 5.5 Completed Platform Protection Upon completion of the reinforced granular platform, the surface shall be maintained in a well-drained condition until footing concrete placement.

If footing placement is delayed more than 48 hours or significant rain is forecast, the completed platform shall be temporarily covered with plastic sheeting or equivalent to prevent contamination by fines or water infiltration.

Any degradation of the platform surface due to weather exposure shall be corrected prior to footing construction.

2.2.3.11. 5.6 Acceptance After Rain Events After any rainfall event, the owner/engineer shall be notified and given the opportunity to inspect the subgrade or completed platform.

Work shall not resume until the affected area is confirmed to be stable, non-yielding, and compliant with this specification.

2.2.4. SUMMARY

This installation produces a 2.5 ft thick reinforced granular platform extending 1 ft beyond the footing, with a 20.5' ×

18' burrito-wrapped geotextile + geogrid envelope. This configuration increases bearing capacity, improves settlement performance, and delivers a stable base for the concrete footing.

2.3. Relocate sprinkler supply line.

2.3.1. Contractor shall demolish existing sidewalk panels adjacent to project site from the fire lane to the existing staircase.

2.3.2. Contractor shall install sprinkler main, matching diameter of existing adjacent mains, constructed of schedule 40 PVC or material matching existing sprinkler mains. New main shall be routed around the west side of the project and shall connect to the existing main on both ends of the project. Contractor shall reconnect existing heads and relocate or install new heads to ensure proper coverage to grass area between the project site and the protection wall. Contractor shall modify coverage of existing heads in planting areas to ensure that sprinklers will not provide coverage on new missile deck areas, see drawing for scope of area.

Contractor shall provide shop drawings indicating proposed sprinkler coverage with material submittals for Government approval.

2.3.3. Contractor shall reroute and connect system control cabling impacted by project work.

2.3.4. Contractor shall carryout system functional test of all parts of the modified system upon completion for government acceptance.

2.3.5. Contractor shall replace demolished sidewalk, item 2.2.1.

2.3.5.1. Sidewalk shall be 7” concrete. Subgrade shall be compacted to a minimum of 95% if the maximum dry density at a moisture content of between -3 and +4 percent of optimum per ASTM D698, Standard Proctor. Extend subgrade preparation laterally 6” beyond the edge of the walk.

2.3.5.2. Contractor shall install bond breaker where sidewalk meets staircase foundation.

2.3.5.3. Contractor shall isolate slabs from sidewalk lighting foundations with expansion joints matching existing and from existing concrete sidewalk with control joints matching existing. All joints shall be sealed consistent with existing conditions.

2.4. Laydown yard fencing

2.4.1. Contractor shall re-establish construction yard fencing in west parking lot as part of remobilization efforts following existing contract drawings and specifications.

3. SPECIFICATIONS: All work shall be accomplished in accordance with existing contract specifications. If contract specifications do not address the work, contractor shall comply with UFC 1-200-01 General Building Requirements, Unified Facilities Guide Specifications, Engineering Technical Letters, and any manufacturer’s specification associated with materials and supplies. In the event of a conflict between any of the specifications or codes the most stringent standard will apply.

4. CONDUCT REQUIREMENTS: The contractor’s employees shall comply with all base traffic regulations and properly conduct themselves while on this base.

5. RESTRICTIONS: When working on base, all security regulations shall be obeyed.