Attachment D4 - Annex G Snow and Ice Removal.docx

Annex G (Service 408 Pavement Clearance, Snow, Ice and Sand Removal) - Rivanna Station Base Operations and Maintenance Services

Annex G

CLS 408

Snow and Ice Removal

Annex G (Service 408 Pavement Clearance, Snow, Ice and Sand Removal) - Rivanna Station Base Operations and Maintenance Services

11 December 2024 ii

Table of Contents

Annex G (Service 408 Pavement Clearance, Snow, Ice and Sand Removal) - Rivanna Station Base Operations and Maintenance Services

1.0 General Information.

1.1 Overview. The Contractor shall provide Pavement Clearance services, to include street sweeping and snow and ice removal services, on paved driving/parking areas and side roads, as annotated on Technical Exhibit (TE) SNAIR, Priority Snow and Ice Removal Plan. Services shall commence when snow height exceeds two (2) inches, or forecasted low ambient temperatures and moisture levels could cause ice accumulation or when ice begins to accumulate. Removal and treatment priorities shall take as directed by the KO, the Contracting Officer’s Representative (COR), or Alternate Contracting Officer’s Representative (ACOR). Services shall continue as weather conditions dictate. Historically, there have been roughly four (4) snow-storm events per year that required snow and ice removal activities. Storm classification will be determined by the COR/ACOR based on snowfall accumulation projections from the several news weather channels. Snow/ice storms are classified as follows:

a. Class A: Partial Pre/Post treatment, walks/steps, pavements

b. Class B: Pre/Post Treatment of pavements and clear walks/steps

c. Class C: Storm events of two (2) inches to four (4) inches accumulation

d. Class D: Storm events of four (4) plus to six (6) inches accumulation

e. Class E: Storm events of six (6) plus to eight (8) inches accumulation

f. Class F: Storm events of eight (8) plus inches or more accumulation

Historically, Rivanna Station experiences three (3) to four (4) Class A storms; two (2) to three (3) Class B storms; and two (2) Class C storms; one (1) Class D storm annually. Pavement clearing services for Class E storms shall be executed as an OWO.

1.2 Snow, Ice, and Sand Removal Plan. The Contractor shall review the provided Snow, Ice, and Sand Removal Map, TE SNAIR and submit any revisions to the KO/COR for approval within sixty (60) days of contract award. The Contractor shall update the Snow, Ice, and Sand Removal Plan not later than (NLT) 30 September annually. (TE DELV, Deliverable Lists). The Contractor's plan shall include the following: an inventory of materials for snow, ice, and sand (if used) removal; traffic and parking control procedures, communication channels, and priorities between road users, the snow control center, and equipment operating crews and/or vendors; designated areas from which snow and ice shall be hauled when accumulation reaches an established level; and procedures for adding additional crews and equipment in the event of a major incapacitating storm.

The COR shall be notified when de-icing and snow removal operations are started and shall be updated hourly for the duration of the operation. The Contractor shall respond to road snow and ice removal requests from the COR who will notify the Rivanna Station Directorate of Emergency Services (DES) of the incoming service crew for SNAIR is on the way. Contractor shall be required to provide snow and ice control to clear approximately all of sidewalks and building entryways for all Rivanna Station facilities. The Contractor shall not apply any de-icing agent containing urea or other forms of nitrogen or phosphorus to parking lots, roadways, and sidewalks, or other paved surfaces, per Virginia Stormwater Code 9VAC5-890-40. The use of Ethylene Glycol is also prohibited as well. The Contractor shall submit Safety Data Sheets to DPW-ENRD and COR/ACOR for approval of all other abrasives, chemicals, and application methods prior to use.

2.0 Description of Services.

2.1 Scope. Pavement clearance includes, but is not limited to, the following: plowing and sweeping of sand or snow from roads, access control points (ACP), railroads, airfield pavements, taxiways, aprons, driveways and parking areas by pushing and piling the snow into adjacent areas or by collecting and removing sand. The Contractor shall begin clearing from areas identified in TE SNAIR when accumulations have reached two (2) inches or within one (1) hour of notification by the COR/ACOR. Snow and ice removal shall be cleared from walkways, doorways, and gates to provide full opening and safe access for personnel and equipment. Snow and/or ice piles shall not be left in the plowed or swept areas. The Contractor shall perform deicing services to maintain free from hazard sidewalks, steps, handicapped ramps, fire hydrants and access to buildings and essential facilities specified in TE SNAIR.

2.1.1 Specialized Locations.

2.1.1.1 Paved Roads and Access Control Points (ACP). The Contractor shall clear roads and ACPs. The Contractor shall clear primary roads to support the safe movement of emergency vehicles. The Contractor shall ensure all ACPs are operational at all times, regardless of storm intensity. The Contractor shall deploy the assets necessary to ensure the road network is trafficable IAW the Snow, Ice, and Sand Removal Plan. Once removal operations commence, the Contractor shall continue these operations until snow and/or ice is removed from the full width of streets, including intersections. The Contractor shall have all primary roads passable NLT six (6) hours after the conclusion of an event, eight (8) hours for secondary, and 12 hours for all other roads, and 24 hours for all parking lots, parking garage, and sidewalks/steps. The COR/ACOR will inform the Contractor of the revised clearance times, should there be a delay in opening or closure.

2.1.1.2 Parking Areas and Parking Garage. The Contractor shall clear parking areas. Snow, ice, or sand shall be removed from the full width of the parking areas and pushed to designated locations. The Contractor shall clear parking areas of snow and ice. The snow accumulation on the top level of the parking garage shall be removed using a small skid steer and small to medium size dump bed type truck and hauled to an area and dumped over the hill at an existing surface parking area adjacent the parking garage, this shall be performed for each event. The entrance/exit and ramps shall be cleared, and the areas of accumulation shall be treated with de-icing material suitable for parking structure precast concrete decks. See TE SnowDump for general locations to dump the snow from the parking garage.

2.1.2 Sidewalks. The Contractor shall clear sidewalks when accumulation reaches one (1) inches or when forecasted low ambient temperatures and moisture levels could cause ice accumulation or when ice begins to accumulate. Sidewalks and steps shall receive a complete clearing at the end of each snow and/or ice event.

2.1.2.1 Snow Clearance and Ice Removal. The Contractor shall snow shovel stairs and sidewalks and apply ice melt as needed for each building. Ice melts (salt) shall be placed on stairs and sidewalks for each building.

2.1.2.2 Catch Basins. The Contractor shall remove snow from all catch basins to allow free drainage. This applies in rare instances where the snow accumulates and prevents draining. The Contractor shall clear basins at the end of each snowstorm.

2.1.2.3 Hydrants. The Contractor shall remove snow from and around the hydrants to ensure access. The cleared area shall be, at a minimum, approximately three (3) feet in radius from the hydrant. The Contractor shall clear access to hydrants at the end of each snowstorm.

2.1.2.4 Dumpsters. The Contractor shall remove snow from and around the dumpsters to allow for pedestrian access to dispose of refuse. The Contractor shall clear access to dumpsters at the end of each snowstorm. There are approximately 16 dumpsters on the Installation.

2.1.2.5 HVAC Clearing. The Contractor shall ensure HVAC units are kept clear of snow and ice and all control panels are accessible from all sides. This shall be accomplished by means other than plowing (e.g., snow blowing or hand shoveling).

2.1.2.6 Sand or Snow Stockpile Removal. When specifically authorized by the Contracting Officer (KO), the Contractor shall remove snow, ice, or stockpiles to designated on-post locations.

2.2 Removal Priorities. The priority of pavement clearance shall be IAW TE SNAIR.

2.3 Pre-Treatment and Clearing. The Contractor shall ensure safe walking and driving conditions by immediately removing ice from accumulated areas. The Contractor shall coordinate with the COR/ACOR to pre-treat areas with de-icing material, salt and/or sand, prior to forecasted storms. The Contractor shall apply a salt-brine solution to roads, parking lots, and sidewalks as pre-treatment before a snow or ice event. The Contractor shall remove and dispose of excess accumulations of de-icing material, if applicable, off Government property.

2.3.1 De-icing Material/Sand/Salt. The use of sand, salt, or a mixture thereof shall be used IAW local regulations and local policy. There are no facilities or structures that allow storage of large qualities of salt and/or other de-icing material or chemical’s on Rivanna Station. The Contractor shall maintain even small bags of salt/de-icing material stored in a storage shed as provided by the Contractor for filling the salt boxes to be place around the compound for self-help de-icing. The Contractor shall ensure all materials used are in compliance with local procedures and is acceptable to the KO/COR. The allowable amount of material passing a No. 200 sieve as determined by the American Association of State Highway and Transportation Officials (AASHTO) -T11, Standard Method of Test for Materials Finer Than 75-μm (No.200) in Mineral Aggregates by Washing, shall not exceed 10% by weight. The maximum particle size for sand borrow shall be M1.04.0 Type A, one fourth inch (¼”). At the end of the Snow Removal Season, the Contractor shall remove excess sand from sidewalks and parking lots. No other materials shall be used without the COR/ACOR authorization. The Contractor shall submit Safety Data Sheets to DPW-ENRD and COR/ACOR for approval of all other abrasives, chemicals, and application methods prior to use. The Contractor shall complete a reporting form for each icing/snow event that they apply anti-icing/de-icing material and submit to COR/ACOR on a monthly basis (TE PWS-028, Deliverable Lists). The report shall include the amount of de-icing, the type of de-icer used, and where it was applied.

2.3.2 Ice Control Abrasives. The Contractor shall apply abrasives for ice control as directed by the KO/COR. Abrasives shall consist of treated salt which shall be treated with an Environmentally Preferred Product (EPP).

2.4 De-icing Supplies. The Contractor shall provide and maintain salt boxes/barrels. Salt boxes/barrels shall not be placed earlier than three (3) weeks before the first forecasted freeze. The Contractor shall remove salt barrels within two (2) weeks of the last forecasted freeze. Salt boxes/barrels shall have weather protective lids and shall be placed in designated locations. Salt barrels shall contain a tool or scoop for the individual application of salt. The Contractor shall be responsible for all barrels, tools, equipment, and all materials required. The Contractor shall keep the boxes/barrels three-quarters (¾) full of de-icing materials/salt through the winter season. The Contractor shall replace or repair any damaged boxes/barrels and lids within one (1) day after notification by the COR/ACOR.

2.4.1 Snow Plowing and Ice Removal Standby. The Contractor shall standby on-site, to snowplow/sweep and remove ice within two (2) hours of notification from the COR/ACOR. The Government will provide the Contractor a designated staging area to park and secure equipment for the event. The Contractor and/or their vendor service shall bring materials to the Installation as needed for each snow and ice event. There is no areas or buildings to stockpile materials.

2.5 Pavement Sweeping. No later than two (2) working days after completion of snow and ice removal operations, the Contractor shall begin the removal of excess ice control abrasive material previously applied on the pavement areas specified in TE SNAIR, Snow and Ice Removal Plan. The Contractor shall sweep the pavement areas specified in TE SNAIR using magnetic and vacuum sweepers once each month. Areas to be swept include, but are not limited to: paved streets, parking areas, sidewalks, aprons, parking garage, loading dock areas, etc.

2.5.1 Paved Surfaced Area Cleaning. The Contractor shall manually clean sidewalks, gutters, and other areas inaccessible to mechanical sweepers associated with the above listed paved surfaces to remove rock, sand, dirt, and debris. The Contractor shall remove all growth in the cracks and joints in all pavement and medians.

2.6 Vehicle Obstructions. The Contractor shall notify the COR of any parked vehicles that impede snow removal operations. The Contractor shall assume liability for damages to vehicles caused by Contractor employee and/or vendor(s) negligence.

2.7 Safety. The Contractor shall ensure snow, ice, or sand removal equipment that is slow moving or otherwise creates an unsafe condition are clearly visible to oncoming traffic and bystanders (e.g., equipped with rotating or flashing amber lights).