SOW_BMK37_Ramp_Hydronic_Replacement_V2_2018.pdf

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CONSTRUCTION SCOPE OF WORK

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

Date: 2/27/2019 Revision:

Section 1: Project Title Bismarck Ramp Hydronic Replacement

Section 2: Project Location, Building Name, & Building Number William L. Guy Federal Building/Post Office/Courthouse 220 East Rosser Ave. Bismarck, ND 58501 Building Number: ND0037ZZ

Section 3: Contact List

Contracting Officer (CO) Name: Pam Burley Email: pam.burley@gsa.gov Address: 657 2nd Ave North Fargo, ND 58102 Phone (O): 701 566-6129

Project Manager Name: Jesse Johnson Email: jesse.johnson@gsa.gov Address: 220 East Rosser Ave Bismarck, ND 58501 Phone (O): 701 557-9649

Property Manager Name: James Langlois Email: james.langlois@gsa.gov Address: 220 East Rosser Ave Bismarck, ND 58501 Phone (O): 701 566-6115

Project Manager / COR Name: Benjamin Reko Email: Benjamin.reko@gsa.gov Address: DFC Bldg 41 Denver, CO 80225 Phone (O): 303-236-0855

Section 4: Project Background & Project Description The General Services Administration, Region 8, is initiating a project to remove and replace the current electrical snow melt system installed in the William L. Guy Federal Building’s garage ramp. A new hydronic glycol system shall be installed in place of the current snow melt system. During the construction, installation of the new hydronic system there are plans to lower the top of the existing ramp along with guard shack, bollards, hydraulic barrier, and supporting equipment.

Section 5: Project Objectives The contractor shall provide labor, materials, equipment and supervision necessary to perform: Replace the existing 480 volt, 191 kW electric snowmelt system at the William L. Guy Federal Building with a new hydronic snowmelt system utilizing the existing building hot water boilers as the heat source. The entirety of the vehicle ramping that houses the snowmelt system will be demolished and replaced in addition there will be minor modifications to existing guard shack, ancillary security controls, and full refurbishment and new placement of the security barricade.

1) The contractor is responsible for obtaining public and private utility locates prior to performing any excavation activities.

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2) Vehicle Barrier:

a. The vehicle barrier safety loops in the concrete shall be disconnected prior to start any concrete demolition.

b. The barrier shall be moved to a location where it can be refurbished. Refurbishing consist of but not limited to

, the removal of any rusted metal and replaced with new welded metal with a weather proof coating, testing the condition of the functionality for barriers proper use and hydraulic maintenance.

c. The contractor shall contact Delta Scientific, the makers of the barrier for a suggested refurbishing plan.

i. Delta Scientific 661-575-1100 Glenn Allen: 703-300-2148

d. Maintain the use of the existing drainage so it can be applied in the new design set.

3) CIVIL DESIGN: (C-100 to C-600) 9 sheets

a. Based on a topographic survey provided by professional surveyor Martin/Martin, Civil is providing preliminary drafts of the existing conditions and demolition plan, grading and site plan, site details, erosion control plan and paving plan with the 50% design development submittal. No utility work is anticipated, with the exception of the routing of the hydronic snowmelt system and the resetting of the existing drainage inlet at the bottom of the ramp to the proposed grade. It is understood that the existing inlet has sufficient capacity to accept storm runoff and will be reused.

b. Approximately 6400-square feet of concrete will be demolished, hauled away, and replaced with an approximate equivalent amount of 6-inch concrete reinforced with no. 4 epoxy-coated rebar @ 12” o.c. both ways (based on original construction plans). Concrete depth shall be 12 inches in locations of walks/curbs as indicated on drawing C-500. The replacement concrete mix shall meet North Dakota Department of Transportation requirements.

c. The Governments goal includes widening the access to improve traffic flow and visibility. The proposed plans increase the majority of the ramp width to ±22-feet. The ramp width tapers to ±16-feet to match the existing width of the garage entrance and to ±18-feet at the south end to match in to the existing approach location.

The approach is being removed and replaced to improve accessibility.

d. To satisfy another Government goal, the entrance grades from the street to the security barrier shall be reduced to improve the visibility of cars approaching the barrier from opposing directions. The proposed design lowers the existing ramp high point by ±1.5-feet and relocates the barrier to the north. Lowering the high point allows a reduction of grades and creates at least 20-feet on both sides of the barrier for cars to be stopped.

e. The new access is designed to lower the security barrier and ramp east of the guard station. Lowering the security staging area will decrease the grades between the staging area and the road. Concrete west of the lowered staging area will need to be removed and replaced to meet with the lowered ramp elevation. Where the staging area is lowered, the guard station, card reader, barrier, stop light, mirror and bollards will be field measured, removed and replaced at the same height above the proposed pavement or at a height determined by the Government.

f. North of the security barrier, curbing and sidewalks along the sides of the access pavement appear to be monolithically integrated. The proposed access pavement does not include sidewalks in order to maximize drivable widths. The west side of the proposed access ramp includes a 1.5-foot walk mountable curb used as a visual and tactile barrier to discourage vehicles from driving too close to the existing retaining wall/scraping mirrors.

g. Proposed grades north of the security staging area will substantially match existing conditions, it is assumed that the existing retaining wall can remain on the west and that new pavement can tie-in to existing slope paving on the east. Storm water runoff will be caught at the existing inlet at the bottom of the ramp, which is assumed to have sufficient capacity. The existing storm inlet grate shall be reset to match the proposed grade; additional modifications to storm utilities are not anticipated.

h. The bottom of the access ramp will be widened through the turn toward the garage entrance. Portions of hardscape east of the ramp and south of the generator will be removed and replaced to allow trenching and installation of the of the hydronic snow melt utility connections.

i. Erosion control measures will be required during construction. Phasing of the BMPs will likely be necessary.

Access to the ADA parking spaces west of the project location and ADA route to the Federal Building must be maintained throughout construction. Construction staging shall be required to provide temporary access during the project duration. Coordinate with Property Manager for delineated areas.

4) ELECTRICAL: (E0.0 to E1.4) 7 sheets

a. The William L. Guy Federal Building garage ramp snowmelt system is served by a 480 volt, 191 kW electric resistance system. There are 25 separate electric resistance circuits utilized throughout the total ramp length, 3 | P a g e with one circuit located just inside the parking garage doorway. These circuits are fed from 400 amp, 480 volt Panel HL2. Panel HL2 is located inside the parking area on the west wall and is fed by Panel MSB located in Room 009. The purpose of this project is to eliminate the existing electrical snowmelt system and replace it with a hydronic snowmelt system.

b. Before concrete removal can be started, the electric heat trace must be disconnected. All circuits in HL2, except circuit 1, shall be disconnected and the conductors removed to the in-grade junction boxes where the connection to the heat trace cables is made. Circuit 1 powers the electric heat trace in the ramp drain. This heat trace shall be retained and re-energized at the completion of the project.

c. A new hydronic snowmelt system will replace the existing electrical system. The hydronic system will require one 480V 5 hp circulation pump. This pump will be started by a combination starter/disconnect and controlled a new snow melt control system. The pump and starter/disconnect will be located in Room 006 and fed from panel HL2. The snowmelt controller will be located in room 006 and be fed by a 120V circuit from panel LB3.

The location of panel LB3 is shown in the drawing set. The controller will require the installation of an in-slab snow sensor, humidity sensor, and temperature sensor.

d. The elevation of the barrier and grade of the ramp will change as part of this project. There will be slight modifications to the guard stand, associated card reader, and security barrier loop detectors. The guard stand and card reader stand must be lowered to match the new elevation of the ramp. The existing conduit and conductors feeding the guard shack and card reader will be lowered to accommodate the new elevation and avoid conflict with the new hydronic lines. New loop detectors will be installed to operate the barrier and garage door at the bottom of the ramp.

5) MECHANICAL: (M0.0 to M5.1) 8 sheets

a. Heat Source: The William L. Guy Federal Building currently utilizes three 4,184 MBH (output) hot water boilers. It is understood that during normal winter operation, only one of the existing boilers is used at a time.

With the extra available capacity, we assume that the existing boilers will be large enough to provide heat to the snowmelt system. We suggest firing multiple boilers on and running the existing pumps with the added load for a period of time to determine if the added load applied to the system can be accounted for with the existing pumping/boiler infrastructure. The boilers are located in the mechanical room in the northeast area of the basement of the building. Based on a snowmelt load of approximately 1,600 MBH, a new 4 inch supply and return line will need to be installed and routed to a new flat plate hot water heat exchanger that will be housed in the existing sump room. The new 4 inch hot water lines will be routed in the ceiling space, through the parking garage area, and terminate at the new snowmelt heat exchanger. Temperature and pressure sensors are to be installed in the new lines as well as a new motorized valve that will control hot water flow to the heat exchanger. The hot water supply and return design temperatures are 180°F and 160°F, respectively. Based on the snowmelt heating load, the required flowrate is 160 gallons per minute.

b. Snowmelt System: The new hydronic snowmelt system, sized at 1,600 MBH, requires supply and return temperatures of 150°F and 120°F, respectively. There are four snowmelt zones throughout the ramp area served by four separate manifolds. The water in the system will be a 50% propylene glycol solution. Each manifold contains 8 to 11 separate circuits. Two of the manifolds will be in the parking garage near the existing electrical gear. The other manifolds will be mounted outside on the south portion of the ramp. 3 inch snowmelt supply and return lines will serve as the header for the manifolds. Since two of the manifolds will be outside, a 2-1/2 inch supply and return line will be routed underground to the outdoor manifolds. The design intent is to mount the manifolds on the east retaining wall on the sloping ramp to minimize underground piping and interference with the snowmelt piping. One 5 hp inline pump will circulate the glycol throughout the system. A new expansion tank, air separator, and glycol feeder are required on this separate closed-loop system. A new snowmelt sensor will be imbedded in the new ramp concrete, and an outdoor temperature sensor will be mounted outside.

i. The basis of design manufacturer for the snowmelt system is Viega or equal barrier tubing system.

The design team has chosen this manufacturer to aid in laying out the snowmelt system. The ramp snowmelt assembly consists of a top slab of concrete, 3/4 inch pex tubing spaced 6 inches on center, wire mesh, 2 inch R-10 insulation and compact fill material (shown below).

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c. Controls: The snowmelt system will require a controller to integrate the snowmelt system with the BAS and the heating water system. Below is a summary of control points that will need to be captured and/or controlled via the snowmelt controller:

1. Heating water supply

2. Motorized control valve

3. Outdoor temperature sensor

4. Snow / Ice sensor in ramp pavement

5. Snowmelt supply water temperature

6. Snowmelt return water temperature

7. Enable signal to existing BMS

8. Freeze alarm

9. 3-way control valve for mixing

ii. The new snowmelt controller will also need to have the ability to integrate with the existing building automation system or at least be able to see the status of the system. Along with the new snowmelt controller, several control points will need to be added to the new hot water lines. New temperature sensors will be added the the new 4-inch lines and will be picked-up by the existing

BAS.

6) Building Automatization System (BAS):

a. The BAS software shall be upgraded to correctly represent the new snow melting system.

b. For question about the building’s BAS, the contractor shall contact the maintenance and repair company in charge of the BAS: Contact Project Manager for details.

7) STRUCTURAL: (S0.00 to S3.00) 3 sheets

a. The purpose of this project is to replace the existing electric heating system with a heated water/glycol system and to flatten the grade to provide a more level surface on either side of the ramp access barricade.

In the process of lowering the grade, the existing barricade and pit must be lowered along with the guard booth and the card swipe pedestal.

b. The guard booth is a prefabricated unit on a concrete foundation, and it appears to be in good condition. The booth shall be removed, the existing booth foundation shall be saw cut to lower grade and supporting wall removed, and the booth reset and sealed. Likewise, the card swipe pedestal will be removed and replaced on a similar support as the existing condition.

c. The objective for the existing barricade is to remove the barricade and refurbish the equipment. The existing pit will be demolished as part of the revision to the grade and ramp slab. After the revisions to the ramp grades and as part of the overall construction, a new barricade pit and foundation will be constructed. The overall dimensions from the existing foundation have been preliminarily verified and generally match the field conditions based on photographs and field dimensions. During demolition, it will be necessary for the contractor to verify the pit plan dimensions, as well as the pit depth and the existence of a gravel bed in an opening in the floor of the pit. The existing pit drawing does not indicate the size of the reinforcing in the base

5 | P a g e and in the walls, but the drawings do show reinforcing spacing and concrete cover. These dimensions are duplicated in the new pit drawings and reinforcing size has been determined and is shown.

d. Based on the original pit drawing and the reinforcing calculations, including an allowance for frost depth while maintaining the original pit depth above the bottom footing, we have concluded that to avoid a monolithic pour with “hanging forms” the base footing should be constructed as an initial pour with the pit walls as a second pour. The wall to floor interface will be a keyway with foundation dowels extending into the walls.

e. We have assumed 4000 psi concrete for the pit walls and floor with uncoated grade 60 reinforcing since there is minimal evidence of reinforcing corrosion. We have estimated the following material quantities for the barricade foundation:

i. Initial pit floor slab – 30 cubic yards of concrete

ii. Second wall pour 16 yards of concrete

iii. Reinforcing (total) approximately ½ ton.

f. The initial demolition, excavation of the new pit and backfill prior to the installation of the ramp slab should all be contained within the overall Civil work.

g. In addition to the new barricade pit there will be a new 6-inch-tall concrete housekeeping pad below the new heat exchanger, measuring approximately 2’ x 3’. To install the pad, roughen the surface of the existing floor slab to 1/4 inch amplitude and remove all concrete debris. Wet the surface, removing standing water and apply a coat of cement water slurry or acrylic bonding agent to the surface of the concrete using a stiff brush to work the material into the surface. Place the new pad using the same concrete mix as for the ramp slab.

Moist cure the new pad for 7 days prior to installing anchors and equipment. Other small housekeeping pads, if required should be constructed in a similar way.

h. Based on the current mechanical plans, several relatively minor penetrations through existing wall structure will be required for hydronic heat manifolds. The openings are anticipated to be 4 inches diameter or less, for a total of four. These openings may be core drilled through the existing wall once the reinforcing is located so it can be avoided.

i. Part of the new slab system included a 2 inch layer (R10) of EPS rigid foam board. Typically, the various EPS boards available come in a variety of stiffness levels, also known as the subgrade modulus. Since the original Geotechnical report is not available to know the subgrade modulus for the existing subgrade soils, we recommend a value of 200 pounds per cubic inch. This is consistent with the high subgrade modulus in the military Unified Facilities Criteria document UFC 3-320-06A, “Concrete Floor Slabs on Grade Subjected to Heavy Loads,” dated 1 March 2005. The 200 pounds per cubic inch value is on the high end of the values tabulated in the UFC, and was selected to be reasonably consistent with stiff existing subgrade to protect the ramp slab from excessive cracking caused by the insulation itself.

8) Geotechnical Review

a. The Contractor shall hire a licensed Geotechnical Engineer evaluate soils and provide direction during construction. The Contractor shall verify plan and specification assumptions and design conditions, and shall confirm with the Geotechnical Engineer prior to construction. All recommendations by the Geotechnical Engineer shall be followed. Geotechnical requirements shown in the plans and specifications are minimums and are for information only. It shall be the Contractor’s responsibility to coordinate with a Geotechnical Engineer prior to construction.

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.

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b) Base Price- Format

Section 7: Period of Performance

Once award has been issued, the contractor has 100 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 for ALL GSA projects

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

REQUIREMENTS for ALL Projects (Construction, Design & Design/Build)

a. Safety and Health Program

b. Asbestos Containing Materials. To comply with federal and state regulations as well as GSA policy, an asbestos pre-alteration assessment is required for all construction projects as outlined in Section B of the Universal Scope Requirements. An additional pre-alteration assessment is not required under this contract.

c. Lead Containing Paint / Lead Based Paint

d. Accessibility

e. Green Purchasing

f. Construction Indoor Air Quality (IAQ) Management Plan

g. Construction Waste Diversion

REQUIREMENTS for ALL projects IF APPLICABLE (Remove if not needed AFTER consulting with OFM and/or other appropriate groups)

h. Excavation Permit

i. Utility Locates

j. gBuild

k. Commissioning (for all new building system equipment)

l. GSA IT Network

m. Building Monitoring and Control Systems (BMC)

n. Advanced Metering System

o. Sustainable Environmental Management System (SEMS)

Typical Project Document References

Rebates

The Contractor shall pursue any and all utility rebate and incentive programs and any government grant or incentive programs at the local, state, and federal level. Contractor is responsible for researching, submitting, and ensuring collection of all applicable rebates. Rebate opportunities must be explored for all elements of the project including but not limited to resource-saving equipment, materials, design & services (Commissioning/Recommissioning and other strategies & processes). Submit all rebate checks to:

General Services Administration Attn: Ron Burnett 1961 Stout Street Suite 01-107 Denver, CO 80294

For assistance with the rebate process please contact Doug Baughman, Regional Rebate Coordinator doug.baughman@gsa.gov (303) 941-1306 https://maps.google.com/?q=1961+Stout+StreetSuite+01&entry=gmail&source=g https://maps.google.com/?q=1961+Stout+StreetSuite+01&entry=gmail&source=g mailto:doug.baughman@gsa.gov tel:(303)%20941-1306 tel:(303)%20941-1306

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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) Brief narrative describing method of accomplishment, construction techniques, etc.

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

c) Service/Utility Outages (if necessary)

d) Phasing schedule (if necessary)

e) Any building infrastructure/BAS equipment that may be impacted

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 2 hard copies of submittals and 2 electronic copies to be sent to the 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.

6) Submittals will occur after award

a) Plumbing Pipe Materials, Fittings, Valves etc.

b) Electrical conduit, wiring, panels, switches, fuses etc.

c) Any mechanical equipment, heat exchangers, pumps, sealants, lubrications etc.

d) Structural materials, rebar, base material

e) Storm Water Prevention Plan

Section 10: General Requirements

1) Contractor Use of the Premises

a) During the period of the project, the contractor will have access to the site only during and after business.

The contractor will need to coordinate with the Contracting Officer to arrange access to the parking lot. 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.

b) Operations will continue during this project so particular attention shall be given to phasing of project to minimize disruptions to their activities. Contractor shall coordinate with GSA representatives and then provide a schedule with phasing and duration for each activity. Schedule approval is to be obtained at least seven days prior to any work commencing. Communication during this project will be critical to meet this need.

2) Progress Meetings The contractor shall schedule weekly meetings with the GSA and subcontractors. The contractor shall keep meeting minutes and distribute copies at the following meetings. The meeting agenda will include the following as a minimum:

Approval of previous meeting, review of work progress, field observations, problems and decisions, identification of problems which impede planned progress, review of submittals schedule and status of submittals, maintenance of progress schedules, planned progress during the succeeding work period.

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.

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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 contract; (3) Remove grease, dirt, stains, foreign materials, and labels from finished surfaces; (4) Thoroughly clean building interiors; (5) Pickup all construction debris from the site; and (6) At time of final inspection, project shall be thoroughly cleaned and ready for use.

14) Protection of the Building The construction contractor is responsible for the protection of all existing building property for damage due to work performed under this contract. Any damage caused by the performance of this contract shall be repaired to match like or better condition at no additional cost to the government

15) 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: 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.

2) Red-lined drawings and CAD and/or BIM as-built drawings, and field training for Operations and Maintenance (O&M) personnel shall be provided at completion of project. Maintain one complete set of contract drawings. Clearly mark changes, deletions, and additions using GSA CAD Standards to show actual construction conditions. Show additions

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3) The contractor shall provide O&M manuals. The O&M manuals shall contain the following:

o Executed Warranties (at project completion) o Maintenance and operation manuals

Section 12: Attachments

1) Universal Scope requirements

2) Snowmelt Design Drawings

3) Snowmelt Specifications

Photos of Existing Ramp

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Existing barrier existing barrier

Existing booth and driveway existing barrier