ROM APM Maintenance Facility Expansion 05.02.24 (v8).pdf

REPORT PREPARED BY

AGTS MAINTENANCE FACILITY REVISED ROM COST

Contract # 202159440

DENVER INTERNATIONAL AIRPORT

Denver, CO USA

AGTS MAINTENANCE FACILITY

EXPANSION

REVISED ROM COST ESTIMATE

Contract # 202159440 Submitted: December 29, 2023 Revised with Additional Layout: January 30, 2024 http://www.logplan.com

AGTS Maintenance Facility Expansion | Revised ROM Cost Estimate

Revised December 29, 2023 Additional Layout January 24, 2024

T h i s d o c u m e n t c o n t a i n s c o n f i d e n t i a l a n d p r o p r i e t a r y i n f o r m a t i o n a n d i s t h e p r o p e r t y o f Lo g p l a n , L L C a n d / o r i t s s u b s i d i a r i es . T h e r e p r o d u c t i o n , d i s t r i b u t i o n , u t i l i z a t i o n , a n d o r c o m m u n i c a t i o n o f i t s c o n t e n t s w i t h o u t L o g p l a n ’ s L L C o r i t s s u b s i d i a r i e s wr i t t e n p e r m i s s i o n a r e s t r i c t l y p r o h i b i t ed . 2 0 2 3 L o g p l a n , L L C . A l l r i g h t s r es e r v e d . ©

Logplan 5750 DTC Parkway, Suite 180 Denver, Colorado 80111 USA

Office 303-694-1112 Fax 303-694-1110 www.logplan.com

December 29, 2023 Revised January 30, 2024

Seth Craft AGTS Administrator Denver International Airport Operations and Maintenance Contract Administration Airport Office Building | 4th Floor 8500 Peña Boulevard | Denver, CO 80249-6340

(303) 342-2915 | (720) 428-1429 Seth.Craft@flydenver.com

Subject: AGTS Maintenance Facility Revised ROM Cost Estimate

Dear Mr. Craft, Thank you for the opportunity to prepare this revision to our original ROM cost estimate. The team has reworked the project approach after receiving direction from DEN on changes to several key assumptions. This revised construction approach has resulted in a significantly lower cost without substantive reduction in functionality or constructability.

A meeting was held with DEN on January 11, 2024, resulting in some refinements to one of the concepts. This submission includes this refinement it is attachment 4E-v4. This layout further reduces the cost estimate by an additional $2.2 Million.

Time is of the essence with the demands for the system and new vehicles beginning to arrive, Logplan is prepared to support DEN in the next steps on this project as time is of the essence. We can meet with DEN to discuss this revised costing and discuss possible strategies for moving forward to bring this project to successful fruition.

Please feel free to contact me at 303-808-9710 or r.kelly@logplan.com to discuss. Thank you again for this opportunity to support Denver International Airport.

Sincerely, Rick Kelly Director of Operations mailto:Seth.Craft@flydenver.com mailto:r.kelly@logplan.com

T h i s d o c u m e n t c o n t a i n s c o n f i d e n t i a l a n d p r o p r i e t a r y i n f o r m a t i o n a n d i s t h e p r o p e r t y o f Lo g p l a n , L L C a n d / o r i t s s u b s i d i a r i es . T h e r e p r o d u c t i o n , d i s t r i b u t i o n , u t i l i z a t i o n , a n d o r c o m m u n i c a t i o n o f i t s c o n t e n t s w i t h o u t L o g p l a n ’ s L L C o r i t s s u b s i d i a r i e s wr i t t e n p e r m i s s i o n a r e s t r i c t l y p r o h i b i t ed . 2 0 2 3 L o g p l a n , L L C . A l l r i g h t s r es e r v e d . ©

TABLE OF CONTENTS

Executive Summary

Key Assumptions

Project Phasing

Options

Recommendation

Concept Details

Civil/Site Elements

Parking Lot

Snow Removal Area

Earthwork

Hauling

Excavation and Embankment

Utilities 12

Storm Drainage

Potable Water and Fire Protection

Sanitary Sewer

Site Lighting

Electrical Service

Natural Gas System

Communications

De-Ice System

Temporary Erosion Control

Maintenance of Traffic Plan (MOT)

Structural

Structural Description of New Maintenance Areas

Architectural, MEP & MEP Systems

Project Schedule

Rough Order of Magnitude Project Cost

Detailed Assumptions and Clarifications

T h i s d o c u m e n t c o n t a i n s c o n f i d e n t i a l a n d p r o p r i e t a r y i n f o r m a t i o n a n d i s t h e p r o p e r t y o f Lo g p l a n , L L C a n d / o r i t s s u b s i d i a r i es . T h e r e p r o d u c t i o n , d i s t r i b u t i o n , u t i l i z a t i o n , a n d o r c o m m u n i c a t i o n o f i t s c o n t e n t s w i t h o u t L o g p l a n ’ s L L C o r i t s s u b s i d i a r i e s wr i t t e n p e r m i s s i o n a r e s t r i c t l y p r o h i b i t ed . 2 0 2 3 L o g p l a n , L L C . A l l r i g h t s r es e r v e d . ©

ATTACHMENTS

Attachment 1: Option 4A v3

Attachment 2: Option 4C v3

Attachment 3: Option 4E v3

Attachment 4: Option 4E v4

T h i s d o c u m e n t c o n t a i n s c o n f i d e n t i a l a n d p r o p r i e t a r y i n f o r m a t i o n a n d i s t h e p r o p e r t y o f Lo g p l a n , L L C a n d / o r i t s s u b s i d i a r i es . T h e r e p r o d u c t i o n , d i s t r i b u t i o n , u t i l i z a t i o n , a n d o r c o m m u n i c a t i o n o f i t s c o n t e n t s w i t h o u t L o g p l a n ’ s L L C o r i t s s u b s i d i a r i e s wr i t t e n p e r m i s s i o n a r e s t r i c t l y p r o h i b i t ed . 2 0 2 3 L o g p l a n , L L C . A l l r i g h t s r es e r v e d . ©

Executive Summary The rough order of magnitude (ROM) cost estimate in the original concept represented the chosen solution and phasing plan that contained several work elements that, after consultation with DEN, were eliminated.

Original ROM Concept B Revised Options (Range) Duration: 35 months Duration: 29 to 33 months Square Footage: 79,041 sq. ft. Square Footage: 36,670 to 59,275 sq. ft.

Project Total: $100,380,663 Project Total: $52 to $71Mm

The project is still based upon a fleet of 41 vehicles operating in either 4- or 5-car trains.

The team was able to remove a large amount of civil and structural construction activity and reduce the overall size of the facility.

With the additional vehicles beginning to arrive and the increasing demands on the system, efforts to address opportunities to shorten the project duration and begin the steps to optimize the design should be considered.

Areas where there still seem to be opportunities for improvement in the schedule and cost are:

• Beginning the design process immediately.

• Preparing the RFQ for a GC immediately for a modified design-build contract.

• When the contractor comes on board, their first task order will be to review the ongoing design and construction documents and assist in the preparation of the initial release packages for earthwork, site utilities and any long lead items.

• Exploring DEN’s current on-call task contracts for early start on the earthwork, site utilities, and long lead items.

The project team is prepared to meet with DEN and Alstom to discuss the opportunities that are available and next steps.

T h i s d o c u m e n t c o n t a i n s c o n f i d e n t i a l a n d p r o p r i e t a r y i n f o r m a t i o n a n d i s t h e p r o p e r t y o f Lo g p l a n , L L C a n d / o r i t s s u b s i d i a r i es . T h e r e p r o d u c t i o n , d i s t r i b u t i o n , u t i l i z a t i o n , a n d o r c o m m u n i c a t i o n o f i t s c o n t e n t s w i t h o u t L o g p l a n ’ s L L C o r i t s s u b s i d i a r i e s wr i t t e n p e r m i s s i o n a r e s t r i c t l y p r o h i b i t ed . 2 0 2 3 L o g p l a n , L L C . A l l r i g h t s r es e r v e d . ©

Key Assumptions The following key assumptions were applied to all the considered options:

• Removing the requirement for new car access during the entire construction process.

• Removing the relocation of the road works.

• Not building the spare parts access on the west side of the building.

• Reduced square footage where possible while not compromising AGTS operations.

• Emergency access to the east tunnel is not interrupted.

• The west utility tunnel will have minor restricted access but will require coordination with the contractor.

• Allows for Concourse D and expansion to the north.

• All DEN design, construction and contract requirements are included.

• CCD permitting compliance.

• The Construction RFP, when developed, is to contain a requirement that the contractor support

Alstom and DEN with access to the facility when necessary to support operations.

• Further optimizing space during design; there may be more opportunities to further reduce the square footage of the facility.

Project Phasing The revised concepts do not require an extensive phasing plan. The majority of the work is outside of the operating facility. Access will be provided to the facility for small deliveries and personnel at all times.

The team considered several approaches to making phased concepts with capacity added at a later date.

After consideration, the options shown do not contain a reduced floor plan with additional functionality added at a later time. Instead, the total square footage has been reduced now so that the required functionality is maintained without the need for additional work at a later time. The cost of adding work at a later time requires a second mobilization and General Conditions costs that significantly increase the cost per square foot for the work and make these later phases cost prohibitive.

Options Each option presented has a table and color-coded functionality for layout. When operations are reduced, it is necessary to park/store trains that are not in use. The parking/storage of individual vehicles is not desirable due to the time required to build trains. For this reason, parking/storage locations are sized to support either 4- or 5-cars trains. In the upper left-hand corner of each layout is an image showing how trains are stored in the south end of the system during shuttle operations.

T h i s d o c u m e n t c o n t a i n s c o n f i d e n t i a l a n d p r o p r i e t a r y i n f o r m a t i o n a n d i s t h e p r o p e r t y o f Lo g p l a n , L L C a n d / o r i t s s u b s i d i a r i es . T h e r e p r o d u c t i o n , d i s t r i b u t i o n , u t i l i z a t i o n , a n d o r c o m m u n i c a t i o n o f i t s c o n t e n t s w i t h o u t L o g p l a n ’ s L L C o r i t s s u b s i d i a r i e s wr i t t e n p e r m i s s i o n a r e s t r i c t l y p r o h i b i t ed . 2 0 2 3 L o g p l a n , L L C . A l l r i g h t s r es e r v e d . ©

Figure 1 Option 4A v3

Option 4A fulfills the basic maintenance requirements. The train storage is the least effective as it presents issues with using the test track for its intended use. This option is the smallest square footage of the options presented. Project Cost: $51,770,160 Project Duration: 28 months.

T h i s d o c u m e n t c o n t a i n s c o n f i d e n t i a l a n d p r o p r i e t a r y i n f o r m a t i o n a n d i s t h e p r o p e r t y o f Lo g p l a n , L L C a n d / o r i t s s u b s i d i a r i es . T h e r e p r o d u c t i o n , d i s t r i b u t i o n , u t i l i z a t i o n , a n d o r c o m m u n i c a t i o n o f i t s c o n t e n t s w i t h o u t L o g p l a n ’ s L L C o r i t s s u b s i d i a r i e s wr i t t e n p e r m i s s i o n a r e s t r i c t l y p r o h i b i t ed . 2 0 2 3 L o g p l a n , L L C . A l l r i g h t s r es e r v e d . ©

Figure 2 Option 4C v3

Option 4C works well for the long term as it extends the primary running surfaces for use with either a new Concourse D or for the expanded capacity option of an added loop system. In either of these scenarios, an additional train storage facility will be required once the main lines go into daily operation, or a completely new, larger facility in a new location. The cost associated with the two operating lines to the north would be permanent investments that would remain even when the operations outgrow this facility expansion. Project Cost: $71,547,064. Project Duration: 30 months.

T h i s d o c u m e n t c o n t a i n s c o n f i d e n t i a l a n d p r o p r i e t a r y i n f o r m a t i o n a n d i s t h e p r o p e r t y o f Lo g p l a n , L L C a n d / o r i t s s u b s i d i a r i es . T h e r e p r o d u c t i o n , d i s t r i b u t i o n , u t i l i z a t i o n , a n d o r c o m m u n i c a t i o n o f i t s c o n t e n t s w i t h o u t L o g p l a n ’ s L L C o r i t s s u b s i d i a r i e s wr i t t e n p e r m i s s i o n a r e s t r i c t l y p r o h i b i t ed . 2 0 2 3 L o g p l a n , L L C . A l l r i g h t s r es e r v e d . ©

Figure 3 Option 4E v3

Option 4E allows for the inclusion of all maintenance requirements in addition to a dedicated offline train storage facility, allowing for good flexibility for daily O&M operations. The footprint is compact, and the pricing is competitive with the other options. This option was considered the best of the three by the local O&M team. Project Cost: $59,948,261. Project Duration: 30 months.

T h i s d o c u m e n t c o n t a i n s c o n f i d e n t i a l a n d p r o p r i e t a r y i n f o r m a t i o n a n d i s t h e p r o p e r t y o f Lo g p l a n , L L C a n d / o r i t s s u b s i d i a r i es . T h e r e p r o d u c t i o n , d i s t r i b u t i o n , u t i l i z a t i o n , a n d o r c o m m u n i c a t i o n o f i t s c o n t e n t s w i t h o u t L o g p l a n ’ s L L C o r i t s s u b s i d i a r i e s wr i t t e n p e r m i s s i o n a r e s t r i c t l y p r o h i b i t ed . 2 0 2 3 L o g p l a n , L L C . A l l r i g h t s r es e r v e d . ©

Figure 4 Option 4E v4

Option 4E v4 contains several changes that resulted in a 2,300 sq ft space reduction. We removed some of the support space and relocated the parts storage to the west side of the building (offices, parts, restrooms, and break area). We relocated the parts storage to the west side of the existing building directly adjacent to the existing parts storage allowing for one larger area. A smaller set of restrooms for use from the new heavy maintenance area, was added back into so they did not have to walk all the way back into the existing building. We were able to use some space to put back in two small offices. Project Cost: $57,770,925. Project Duration 29 months.

T h i s d o c u m e n t c o n t a i n s c o n f i d e n t i a l a n d p r o p r i e t a r y i n f o r m a t i o n a n d i s t h e p r o p e r t y o f Lo g p l a n , L L C a n d / o r i t s s u b s i d i a r i es . T h e r e p r o d u c t i o n , d i s t r i b u t i o n , u t i l i z a t i o n , a n d o r c o m m u n i c a t i o n o f i t s c o n t e n t s w i t h o u t L o g p l a n ’ s L L C o r i t s s u b s i d i a r i e s wr i t t e n p e r m i s s i o n a r e s t r i c t l y p r o h i b i t ed . 2 0 2 3 L o g p l a n , L L C . A l l r i g h t s r es e r v e d . ©

RECOMMENDATION

Logplan considers Figure 4 Option 4E v4 to have the most merit. This layout gives the O&M contractor the best operational flexibility for the space allocated. This layout should be considered for design development to further refine to optimize the concept. Investigation should be made with Alstom to ascertain what options may be available to extend the life of the existing facility when and if operations proceed to the north.

Concept Details These details apply to all layouts with a few exceptions.

CIVIL/SITE ELEMENTS

Parking Lot The parking lot area was determined based on a few assumptions. First, on the north side of the building the pavement extends 150’ north of the building to allow for flatbed truck and firetruck maneuvering. A 1.5% grade away from the building was included for proper drainage and curb and gutter was estimated around the outside of the lot for drainage collection. It was ensured that the parking area can contain the same or more parking than the existing condition and no pedestrian facilities were considered as part of this estimate. The pavement section was assumed to be:

• Hot Mix Asphalt (Grading SX) (75) (PG 76-28) (2”)

• Hot Mix Asphalt (Grading S) (75) (PG 64-22) (5”)

• Aggregate Base Course (Class 6) (10”)

• Subgrade Soil Preparation (5’)

Snow Removal Area The snow removal area was assumed to be 100’ x 20’ in the northwest corner of the parking lot. The same pavement section was assumed as for the parking area, described above, and curb and gutter surround the outside of the snow removal area for drainage collection. Drainage quantities were assumed in the storm drainage section.

EARTHWORK

Hauling Weitz to include most of this scope in their work. They assumed an access is needed for the project from outside of DEN property and they will include the cost of the access gate and the gate guard in their ROM. A haul distance of 5 miles was assumed and the associated costs will be included in the unit cost of excavation by Shrewsberry.

Excavation and Embankment Excavation was required for the proposed work to expand the building/site to the north, east, and west and to provide new vehicle access. It was assumed that 4:1 grading will be used in all slope locations and

T h i s d o c u m e n t c o n t a i n s c o n f i d e n t i a l a n d p r o p r i e t a r y i n f o r m a t i o n a n d i s t h e p r o p e r t y o f Lo g p l a n , L L C a n d / o r i t s s u b s i d i a r i es . T h e r e p r o d u c t i o n , d i s t r i b u t i o n , u t i l i z a t i o n , a n d o r c o m m u n i c a t i o n o f i t s c o n t e n t s w i t h o u t L o g p l a n ’ s L L C o r i t s s u b s i d i a r i e s wr i t t e n p e r m i s s i o n a r e s t r i c t l y p r o h i b i t ed . 2 0 2 3 L o g p l a n , L L C . A l l r i g h t s r es e r v e d . © that the soil is clay loam. No rock excavation was included. Earthwork associated with building, tunnel, or wall elements are included in their respective sections.

UTILITIES

Storm Drainage Site drainage is captured by a series of existing inlets and pipes and routed to an existing pump facility and into the airfield storm drainage system. A new pump station with new inlets and storm drainage pipe has been included in the estimate based on the proposed conceptual site layout. The snow removal area was considered, and additional quantity was assumed for the drainage facilities in that area. Also included are any building connections for roof drains or building drainage. Removal of the existing system, pump station, and temporary connections during construction have also been included in this estimate.

Potable Water and Fire Protection New fire hydrants, water main loop, and new water connections to the existing and proposed building expansion have been estimated. The water line will run around the proposed site layout to provide domestic and fire water to the building. Removal of the existing system and temporary connections during construction have also been included in this estimate.

Sanitary Sewer The existing sanitary sewer system is pumped by an existing lift station and routed into the main sanitary sewer system. A new lift station with new connections to existing and proposed building expansion has been estimated. Removal of the existing system, lift station, and temporary connections during construction have also been included in this estimate.

Site Lighting New light poles, conduit, and cable for site lighting was estimated based on the proposed site layout.

Removal of the existing light poles have also been included in this estimate.

Electrical Service Relocation of an existing Xcel Energy feeder line at the north end of the site was estimated. The line will be relocated outside of any proposed grading limits around the north end of the expansion. No new transformers or switch cabinets were included in this estimate. No new feeder lines were estimated for the AGTS facility expansion, it is assumed that any new electrical service for the building expansion will be routed through the existing building.

Natural Gas System No new natural gas mains or connections were estimated. It is assumed that any gas service required for the AGTS facility expansion will be routed from the existing building.

T h i s d o c u m e n t c o n t a i n s c o n f i d e n t i a l a n d p r o p r i e t a r y i n f o r m a t i o n a n d i s t h e p r o p e r t y o f Lo g p l a n , L L C a n d / o r i t s s u b s i d i a r i es . T h e r e p r o d u c t i o n , d i s t r i b u t i o n , u t i l i z a t i o n , a n d o r c o m m u n i c a t i o n o f i t s c o n t e n t s w i t h o u t L o g p l a n ’ s L L C o r i t s s u b s i d i a r i e s wr i t t e n p e r m i s s i o n a r e s t r i c t l y p r o h i b i t ed . 2 0 2 3 L o g p l a n , L L C . A l l r i g h t s r es e r v e d . ©

Communications No new FAA or DEN communications fiber optic cable was estimated. It is not anticipated that any communication utility holes will need to be adjusted or modified to meet aircraft strength rating within the area of the AGTS facility expansion. It is assumed that all communications for the building expansion will be routed from the existing building.

De-Ice System From the direction of DEN, no modifications to the de-ice system were estimated. It is assumed that any de-ice system work will be completed in a separate project.

Temporary Erosion Control Erosion control measures were estimated as a lump sum based on comparable project estimates and bids.

This scope includes sediment control (such as inlet protection, check dams, perimeter control etc.) for all phases of work.

Maintenance of Traffic Plan (MOT) MOT was estimated as a lump sum based on comparable project estimates and bids. This scope includes traffic control signs, barriers, and devices, as well as signing and flagging operations.

T h i s d o c u m e n t c o n t a i n s c o n f i d e n t i a l a n d p r o p r i e t a r y i n f o r m a t i o n a n d i s t h e p r o p e r t y o f Lo g p l a n , L L C a n d / o r i t s s u b s i d i a r i es . T h e r e p r o d u c t i o n , d i s t r i b u t i o n , u t i l i z a t i o n , a n d o r c o m m u n i c a t i o n o f i t s c o n t e n t s w i t h o u t L o g p l a n ’ s L L C o r i t s s u b s i d i a r i e s wr i t t e n p e r m i s s i o n a r e s t r i c t l y p r o h i b i t ed . 2 0 2 3 L o g p l a n , L L C . A l l r i g h t s r es e r v e d . ©

Structural The expansion of the AGTS Maintenance Facility will add two maintenance areas, north and northwest of the current facility, plus a parking area east of the maintenance areas. The expansion will be designed to allow future expansion of the Airport to the north, similar to the 2001 addition. Specifically, AGTS trains and baggage services will be able to maintain their current north-south alignment through the Maintenance Facility to a future Concourse D. At that time, AGTS maintenance activities will be relocated, and the temporary portions of this facility will be deconstructed.

STRUCTURAL DESCRIPTION OF NEW MAINTENANCE AREAS

The north expansion area will be similar to the 2001 addition in terms of structural makeup. The foundations that are in line with the train and baggage tunnels to the south will be designed and built to support a future superstructure including concrete walls and roof, earth cover, apron paving, and aircraft live load, similar to the original maintenance facility. This same criterion was used for the 2001 addition.

− Drilled piers and concrete grade beams will be designed for the future condition. Cast-in dowel connectors to match reinforcement for future columns will be provided.

− Concrete grade beams and floor slabs (solid precast prestressed planks with a cast in place topping) over a void space will support maintenance operations.

− Running beams and guide beams will match the 2001 addition.

− The lowered floor for a train transfer table will require the structure to be dropped about 6-feet over most of the north expansion area. When Concourse D is built, this dropped area will require an elevated structural slab to resolve lateral forces from soil pressures on future exterior walls.

This drop will also require the utility tunnel to be locally excavated about 6-feet deeper, which will require a sump pump to collect and discharge water.

− The walls and roof for the temporary condition will be lightweight steel, similar to the 2001 addition.

The northwest expansion area will be similar to the north area, except that the foundation loads will be much lower because this area will not be intended to support future superstructure. When Concourse D is built, this area will be deconstructed and covered with earth fill.

− Drilled piers and grade beams will only be designed to support the temporary condition.

− The floor will be structural concrete over a temporary void. Planks similar to the north expansion area will be considered here.

− Running beams and guide beams outside the transfer table pit will be similar to the heavy maintenance areas in the 2001 addition.

− Walls and roof for the temporary condition will be lightweight steel, similar to the 2001 addition.

The east expansion area will be used solely for parking AGTS cars. It will be temporary construction, not intended to support future superstructure.

− There will not be a complete floor structure. Train cars will be stored on three train lines. Each train line will include a pair of concrete running beams supported by a cast-in-place slab over a

T h i s d o c u m e n t c o n t a i n s c o n f i d e n t i a l a n d p r o p r i e t a r y i n f o r m a t i o n a n d i s t h e p r o p e r t y o f Lo g p l a n , L L C a n d / o r i t s s u b s i d i a r i es . T h e r e p r o d u c t i o n , d i s t r i b u t i o n , u t i l i z a t i o n , a n d o r c o m m u n i c a t i o n o f i t s c o n t e n t s w i t h o u t L o g p l a n ’ s L L C o r i t s s u b s i d i a r i e s wr i t t e n p e r m i s s i o n a r e s t r i c t l y p r o h i b i t ed . 2 0 2 3 L o g p l a n , L L C . A l l r i g h t s r es e r v e d . © formed void and drilled piers. The areas around and between each line will be paved with asphalt or a thin concrete slab-on-grade. For the future condition, the void will be grouted before placing compacted fill above.

− The walls and roof for the temporary condition will be lightweight steel, similar to the 2001 addition.

T h i s d o c u m e n t c o n t a i n s c o n f i d e n t i a l a n d p r o p r i e t a r y i n f o r m a t i o n a n d i s t h e p r o p e r t y o f Lo g p l a n , L L C a n d / o r i t s s u b s i d i a r i es . T h e r e p r o d u c t i o n , d i s t r i b u t i o n , u t i l i z a t i o n , a n d o r c o m m u n i c a t i o n o f i t s c o n t e n t s w i t h o u t L o g p l a n ’ s L L C o r i t s s u b s i d i a r i e s wr i t t e n p e r m i s s i o n a r e s t r i c t l y p r o h i b i t ed . 2 0 2 3 L o g p l a n , L L C . A l l r i g h t s r es e r v e d . ©

Architectural, MEP & MEP Systems Architectural, MEP and Special Systems are estimated based on the project providing a duplication of the facilities that currently exist. The exception to this is there will not be an additional control room. The location of these support spaces is provisional and will be sized and located during design. The project has included the cost for a standalone outside HVAC system. The Airport central plant does not have the capacity needed for this new expansion.

Concept for the new space:

Figure 5 Proposed Support Spaces East and West

T h i s d o c u m e n t c o n t a i n s c o n f i d e n t i a l a n d p r o p r i e t a r y i n f o r m a t i o n a n d i s t h e p r o p e r t y o f Lo g p l a n , L L C a n d / o r i t s s u b s i d i a r i es . T h e r e p r o d u c t i o n , d i s t r i b u t i o n , u t i l i z a t i o n , a n d o r c o m m u n i c a t i o n o f i t s c o n t e n t s w i t h o u t L o g p l a n ’ s L L C o r i t s s u b s i d i a r i e s wr i t t e n p e r m i s s i o n a r e s t r i c t l y p r o h i b i t ed . 2 0 2 3 L o g p l a n , L L C . A l l r i g h t s r es e r v e d . ©

Project Schedule A project duration was developed for each of the options. These durations can be further refined into a project schedule for the selected concept during the detailed design development.

Option Project Construction Duration 4A v3 28 months 4C v3 30 months 4E v3 30 months 4E v4 29 months

Rough Order of Magnitude Project Cost In order to develop the ROM cost estimate, the team applied the following basic assumptions:

• The cost for all DEN design, construction and contract requirements are included.

• CCD permitting compliance.

• DEN ROCIP program would be used.

• Cost estimate has been prepared in 2023 dollars.

• Escalation has not been added to the costing estimate. A conservative amount to consider is approx.

range of 0.125% -0.25% increase per month until time of GMP for potential escalation risk.

DETAILED ASSUMPTIONS AND CLARIFICATIONS

A fully detailed cost estimate in included as Appendix A.

Div 01– GENERAL INFORMATION

1. The following cost items are included in this proposal:

1. Subcontractor Default Insurance

2. GC – General Requirements

3. Project Consultants (MWBE/Workforce/DEI/Outreaches)

4. Building Permit and Plan Check Fees

5. General Liability - Rolling Owner Insurance Program (ROCIP) (DIC)

6. Builders Risk Insurance

7. Performance and Payment Bond

8. Estimating/Design Contingency

2. The following cost items are excluded from this proposal:

a. Project escalation past YE 2023

b. Abatement of contaminated soils or other hazardous materials that may be encountered during the excavation of this project.

c. Utility development fees (including water and sanitary fees), as well as fees from Xcel Energy, Century Link, Comcast, or other satellite services.

Div 02 – Site Preparation

T h i s d o c u m e n t c o n t a i n s c o n f i d e n t i a l a n d p r o p r i e t a r y i n f o r m a t i o n a n d i s t h e p r o p e r t y o f Lo g p l a n , L L C a n d / o r i t s s u b s i d i a r i es . T h e r e p r o d u c t i o n , d i s t r i b u t i o n , u t i l i z a t i o n , a n d o r c o m m u n i c a t i o n o f i t s c o n t e n t s w i t h o u t L o g p l a n ’ s L L C o r i t s s u b s i d i a r i e s wr i t t e n p e r m i s s i o n a r e s t r i c t l y p r o h i b i t ed . 2 0 2 3 L o g p l a n , L L C . A l l r i g h t s r es e r v e d . ©

1. We have included cost for installing/removing/staffing a new access gate to the airfield.

2. We have assumed a North Campus laydown area, outside the fence.

3. We have included traffic control as required to/from the site.

Div 02 – Landscaping

1. We have included native seed for the final stabilization.

Div 02 – Site Utilities

1. We have included cost to modify/relocate the existing site utilities on the site as detailed in the supplemental documents provided by Shrewsberry.

2. We have included cost to modify existing utilities within the Utility Tunnel.

Div 03 – Concrete

1. We have included pricing for foundation systems as detailed in the Structural Narrative provide by JR Harris and supplemented by Sketches SK1 and SK2.

2. We have included the structural excavations and reconditioning of soils below building foundations.

3. We have included the structural floor work to accommodate the addition of new switches in the existing facility.

4. We have included cost for underpinning at the existing building foundation systems.

5. We have included extending the “H” Frame running surfaces at Train Storage Area and the

Test Track Extension.

Div 05 – Metals

1. We have included Train Guide Beams and Power Rails.

2. We have included 12ea rolling stairs at the Train Storage Area.

3. We have included portable prefabricated ADA access ramps at the existing Maintenance

Tracks.

4. We exclude any building mezzanines.

Div 06 – Millwork/Carpentry

1. We have included cabinetry/millwork and countertops at the break area.

Div 07 – Roofing/Thermal & Moisture

1. We have included expansion joint provisions at all areas where new building structures abutting the existing PEMB and Baggage Tunnel.

2. We have included damp-proofing and rigid foundation insulation at the perimeter of the new building structure foundation systems.

Div 08 – Openings/Doors/Glazing

1. We have included interior borrowed lite and exterior windows at all new office locations.

2. We have included the cost for large, glazed openings in the PEMB enclosure at the maintenance areas, sim. to the current building to allow natural light into the space.

T h i s d o c u m e n t c o n t a i n s c o n f i d e n t i a l a n d p r o p r i e t a r y i n f o r m a t i o n a n d i s t h e p r o p e r t y o f Lo g p l a n , L L C a n d / o r i t s s u b s i d i a r i es . T h e r e p r o d u c t i o n , d i s t r i b u t i o n , u t i l i z a t i o n , a n d o r c o m m u n i c a t i o n o f i t s c o n t e n t s w i t h o u t L o g p l a n ’ s L L C o r i t s s u b s i d i a r i e s wr i t t e n p e r m i s s i o n a r e s t r i c t l y p r o h i b i t ed . 2 0 2 3 L o g p l a n , L L C . A l l r i g h t s r es e r v e d . ©

3. We have included costs for the new rollup doors “New Utility Tunnel West Access” and the opening for new cars at the north end of the building.

Div 09 – Interior Finishes

1. Walls and Ceilings

a. We have included metal framing and drywall at all Offices/Break Room

Areas/Bathrooms/Lockers.

b. We have included ACT ceilings at all Offices and Break Room Areas.

2. Finishes

a. We have included tile finishes at the Restrooms and Lockers.

b. We have included carpet at the Office Spaces.

c. We have included epoxy flooring at the Maintenance Area.

d. We have excluded any floor finishes at the Train Storage Area.

Div 10 – Specialties

1. We have included all toilet accessories, lockers, fire extinguishers.

2. We have included the cost for code required signage.

Div 11 – Equipment

1. We have included relocation of the existing track buffer.

2. We have included cost for an appliance package at the offices/break rooms.

Div 12– Furnishings

1. We have included a lump sum cost to account for the Office fit out (millwork/tops/wallpaper/window coverings).

Div 13 – Special Construction

1. We have included the design, fabrication, and erection of the pre-engineered metal building (PEMB) structures at the Maintenance and Train Storage Areas.

2. We have included selective demolition and modifications to the existing PEMB structure as to tie in the new PEMB buildings.

Div 14 – Conveyance

1. We have included the cost for the transfer table, per Rev. 02 (servicing both existing maintenance bays).

2. We exclude any other hoisting systems, i.e., elevators, bridge cranes.

Div 15 – Fire Protection

1. We have included a “Wet” sprinkler system at the New Maintenance and Office Areas.

2. We have included a “Dry” sprinkler system at the Train Storage Area.

3. We have included modifications to the existing sprinkler systems at the Bag/Utility/Existing tie-in locations.

Div 15 – Plumbing

1. We have included cost for a CNG Fill Station.

T h i s d o c u m e n t c o n t a i n s c o n f i d e n t i a l a n d p r o p r i e t a r y i n f o r m a t i o n a n d i s t h e p r o p e r t y o f Lo g p l a n , L L C a n d / o r i t s s u b s i d i a r i es . T h e r e p r o d u c t i o n , d i s t r i b u t i o n , u t i l i z a t i o n , a n d o r c o m m u n i c a t i o n o f i t s c o n t e n t s w i t h o u t L o g p l a n ’ s L L C o r i t s s u b s i d i a r i e s wr i t t e n p e r m i s s i o n a r e s t r i c t l y p r o h i b i t ed . 2 0 2 3 L o g p l a n , L L C . A l l r i g h t s r es e r v e d . ©

2. Plumbing costs include all fixtures, Domestic Supply and DWV piping/infrastructure, tie ins to existing, floor drains, etc.

3. We exclude any process piping, pneumatic piping, or specialty systems.

Div 15 – Mechanical

1. We have included standalone electrically powered HVAC systems to support the new maintenance building, independent of the existing CUP (No gas-powered equipment is included).

2. We have included ventilation only at the Train Storage Building, this area is included as a “Non-Conditioned” Space.

Div 16 – Electrical

1. We have included cost to provide a new Power Distribution System (PDS) and relocate the current system.

2. We have included a UPS.

3. We have included all new HVAC and Plumbing Equipment as electric, no gas fed equipment.

4. We have included 600V / 120V power drops with harness at all new workstations.

5. We have included a Fire Alarm System.

6. We have included cost provisions for Low Volt, Communications and Security systems.

Div 34 – Transportation

1. We have new switches as shown.

2. We have included cost for the automatic controls for the storage tracks.

3. We have included cost for 12 Floor Jacks.

4. We have included testing and commissioning of the Train System at the new rail additions only.