DIVISION 2 - SITE WORK

GENERAL INFORMATION

- Designate and enforce project limits, staging areas and site access in order to limit construction damage to areas adjacent to the construction. Refer to specific requirements in Division 1.

- Do not allow parking or storage on turf areas unless approved by UNC Grounds Department. If approved, contractor must relieve compaction, repair damaged irrigation and replace sod as needed.

- Define adequate protection of trees and other plantings. This should include substantial fencing when appropriate. Protected area should be large enough to prevent compaction of soil within the root / drip zone. If passage beside a tree is mandatory, a bridge shall be constructed over the root zone of the tree and the trunk shall be protected. Do not trench within the drip line.

WALKS, PAVING and SURFACING

- Sidewalks and bike paths shall be a minimum of 6’-0” wide to allow for use of snow removal equipment. Do not locate walks immediately adjacent to the edge of parking lots or streets.

- Provide a minimum of 6’-0” radius at all intersecting walks to accommodate snow removal equipment.

- Layout walks to match probable pedestrian traffic patterns in order to limit foot traffic on planted areas.

- Allow space for a bicycle parking area adjacent to the main building entrance. The owner shall review the type of bicycle rack proposed for use.

- Provide a concrete pad and enclosure for a trash dumpster. Dumpster pad shall be at least 6’ X 10’. If gates are to be installed on the enclosure, they must be extremely heavy duty. Enclosure shall be compatible with building construction. Specify pipe bollards to protect the enclosure. Locate bollards at the entrance to the enclosure and around the dumpster. Provide a reinforced concrete approach pad 10’ X 10’ X 6” minimum. Locate dumpster enclosure to allow for straight approach by the truck. Refer to appendix drawings for dimensions of front loading trash containers and trucks in use on campus.

- Colored exposed aggregate concrete has been used as an accent feature for sidewalks at several areas on campus. The concrete is a 4000 PSI mix, ID # P400215 from Lafarge - Greeley. 6 ½ sacks per cubic yard of concrete. 3/8” exposed aggregate mix. Davis color ”Flagstone Brown”, 3# integral color per sack or 19.5# of color per cubic yard.

- Pavers in use on West campus are generally “Medium Ironspot” as manufactured by Pacific Clay and distributed by Lakewood Brick and Tile.

LANDSCAPING GUIDELINES

- Contactors, designers are responsible to secure copies of the University’s Master Plan Guidelines for the Campus Landscape and to become familiar with specifications, and standards for tree & ornamental selection, landscape features, site furnishings and other amenities prior to design efforts or submittals. The guidelines below do not replace or supersede, but supplement these established university guidelines.

LANDSCAPING – TURF

- Water conservation is a primary focus and mission at the university. It is encouraged that landscape designs incorporate turf species mixes that tolerate drought or low water conditions. Designs should designate a portion of the turf to reflect this mission.

- Do not specify turf adjacent to buildings. Provide minimum 12” wide mowing strips to reduce the need for hand edging and to reduce the amount of water applied adjacent to the building. Landscaped zones adjacent to the building may also be specified.

- Sod used for repair or replacement of existing sod shall match the pre-existing or surrounding sod.

- New sod shall be equivalent of a ninety-nine percent improved variety blue grass sod. A five-blend mix is recommended.

- Areas to receive sod shall be thoroughly scarified. Specified compost or equivalent soil amendment shall be spread over the surface at a rate of three cubic yards per thousand square feet. Areas shall then be tilled to a minimum of 4 to 6 inches until no compost/amendment appears on the surface.

- Contractor shall be responsible for watering necessary for initial establishment of new sod. Contractor shall also be required to maintain the sod until the time of substantial completion of the project. Maintenance shall include watering, mowing and rolling. Mowing to occur at least once per week and cut to a height of 2 ½ to 3 inches.

LANDSCAPING – TREES, SHRUBS and PLANTINGS

- Shrub beds shall be mulched 3”-4” deep with shredded wood mulch. No gravel will be permitted. Fabric weed barrier is generally not required. Specify pre-emergent herbicide application prior to installation of mulch.

- Specify heavy gauge steel edging for stone mulched areas only.

- Ground covers should be specified with close plant spacing (4-6 inch off-centered) to allow beds to be established as quickly as possible, and in order to minimize weed control effort.

- Minimize the use of small planting areas by incorporating plantings, and design planting beds that provide an efficient mowing pattern in order to reduce trim mowing.

- Plantings shall not interfere with site or security lighting.

- All trees in lawn areas shall have a 3-4 foot diameter circle (depending on tree diameter, ball size and tree form) of shredded wood mulch.

TREE LOCATION

Tree location shall consider the location of existing utilities, walks, signs and lighting.

Maintain the following minimum clearances:

- 10 feet from sewer lines

- 5 feet from water, gas and electrical lines

- 6 feet (80inches) from walks and curbs. This is not always practical or permissible, especially in Street Parkways, but a minimum 80inch vertical clearance is required above pedestrian walks.

- Please note: ADA compliance recommends that there be a minimum of 80-inch clearance both in vertical or horizontal planes.

- 15 feet from building walls (most Shade Trees), depending on species and purpose (espalier, etc)

- Recommended Tree spacing is 20 feet, depending on purpose, species and design.

TREE & ORNAMENTAL SELECTION

- The University promotes species diversification. Selections should promote a variety of non-native species, as well as Colorado natives. Selection and design should promote future Arboretum consideration. The University also promotes water conservation and designs should give consideration to drought-tolerant species selections.

- Tree selection should comply to University Master Plan Guidelines for the Landscape

- Street tree plantings:

- Monoculture Plantings are discouraged, but will be considered. Designs should consider current campus tree density, distribution of any particular species prior to design recommendations.

- Designs should consider historical data of insect, disease problems on a particular species on the campus

- Designer should consult with the City of Greeley’s recommended street trees.

- Unacceptable trees include :

- species of Populus genus (cottonwoods, aspens, sycamores, etc.)

- species of Acer saccharinum (Silver Maples and cultivars thereof)

- Siberian Elm (Ulmus pumila)

- Russian Olive (Eleagnus angustifolia) or any cultivar thereof.

- Species of willow (Salix genus).

- Please Refer to City of Greeley Forestry Division Website for extensive listing of recommended and not recommended trees http://www.ci.greeley.co.us/2/PageServiceDetails.asp?fkOrgID=48&SDID=5

- Other Considerations:

- Soil pH, (high alkaline 7.5-8.0) in native soils,

- Disease and insect susceptibilities of species

- Water conservation, Xeric-scape species, native “Front Range” / Prairie species

SITE UTILITIES

- Most utilities on campus are University owned. Coordinate all details with the owner.

- Prior to any excavation, all contractors shall be required to call the utility Notification Center of Colorado 1-800-922-1987. Facilities Management is a member and will be notified directly by the UNCC.

- New underground utilities shall be installed perpendicular or parallel to streets, walks and building lines wherever possible.

- Provide 16 ga. Tracer wire for all non-metallic piping. Terminate as directed by the Owner in the field.

- Domestic water mains shall have a shut off valve provided at all points of take off from mains. Valves to be CCW to open.

- All main water services shall be protected by an approved reduced pressure type backflow preventer sized for full building demand. This assembly shall also include 1” bypass with a reduced pressure type backflow preventer.

- Fire hydrants shall be purchased from the City of Greeley Water Department.

- Provide a concrete collar at all water valve boxes.

- Most buildings will be required to be connected to the campus tunnel system. The tunnels generally contain high temperature hot water mains, video cabling, telephone and data systems.

- Telephone systems will generally need to be extended to the main telephone switch in Gray Hall. Data systems will be connected to the campus fiber optic backbone. Point of connection will be determined for each facility. The Telecommunications Wiring Specifications are included in Division 16. All telecommunications system must be coordinated with the UNC Information Technology Department.

- High voltage systems shall be in concrete encased underground duct banks with above ground switches and transformers. Underground vault mounted switches will be considered for certain locations.

- All utility interruptions shall be coordinated through Facilities Management. Provide a minimum of 72 hours advance notice of desired shut-downs. Provide two weeks advance notice whenever possible. Most outages will need to be performed outside of normal working hours.

IRRIGATION SYSTEMS (Basic requirements)

- Water conservation is a primary focus and mission at the university. It is encouraged that irrigation designs incorporate innovations that encourage water conservation measures. Rain gauge, water conservation monitoring, and master control systems are promoted. Designs should designate a portion of the irrigation for Inline Drip Tubing (Netafim or equivalent type systems) when practical. These systems eliminate spray drift and water loss due to evapo-transpiration.

- Refer to UNC suggested irrigation specification following this section.

- Provide PVC sleeves (minimum 4”diameter, Schedule 40 ) under all walks and drives for irrigation piping.

- Sprinkler systems shall be designed to minimize sprinkler heads located in sports fields, vehicular traffic areas or near building surfaces/foundations. System layout shall minimize impact on pedestrian ways.

- Verify available water pressure prior to design. Booster pumps may be required on systems located on Central Campus due to highly variable water pressure. Booster pumps shall be located in a suitable enclosure.

- Provide quick connect fittings on main lines strategically located throughout the site. Quick connect fittings shall be Rain bird. Recommend 1-inch Quick couplers.

- Mainline piping shall be PVC schedule 40. Lateral piping may be either Class 200 PVC or NSF 80 polyethylene. Minimum Pipe size not to be less than 1-inch.

- All sprinkler heads shall be attached to PVC swing joints. Swing joints shall be sealed with teflon tape on the threads. Use of flexible type swing joints must be approved by UNC.

- Valve Installation:

- When series of valves are being “manifolded”, installation should provide adequate pipe spacing to allow ease of repair and replacement of valves.

- Follow up is required to adjust valve boxes to grade after initial settling.

- Backfilling of sprinkler trenches shall be settled with water in all areas. Sprinklers shall be firmly tamped under and around to ensure that they remain at grade level.

- Do not locate valves or similar equipment at the intersection of walks or drives where vehicle or cart traffic may cause damage.

- All splices for control wires shall be made in splice or valve boxes. Direct Bury connections to be used.

- Provide at least one labeled spare control wire installed so that the wire enters and leaves each control box.

- Provide warning tape buried 6” deep located over all control wiring. “CAUTION - BURIED ELECTRICAL LINE BELOW”

- In-Line Drip tube systems are recommended when applicable. Drip micro-emitters type systems are not recommended.

- Sprinkler heads shall be manufactured by Hunter, Rainbird or Toro. “Valve-in-head”- type sprinklers are permissible with adequate controllers and proper and practical application. Subject to prior approval by UNC Facilities Management.

- Control valves shall be manufactured by Nelson or Toro.

- Systems are to be electrical, electrical –mechanical. Hydraulic systems will not be considered.

- Irrigation controllers shall be manufactured by Constellation. Controllers shall be pedestal or wall mounted. Controllers should be able to provide computer master control capabilities for future application as well as remote radio control.

- All wiring and piping shall be tested in the presence of the owner’s Irrigation Technician prior to backfilling.

- Irrigation contractor shall winterize new sprinkler systems at the end of the first season of operation. Owner’s Irrigation Technician shall be present.

- Provide as-built drawings, O&M manuals, keys, valves keys, etc. as required in Division 1.

- All shop drawings and submittals shall be reviewed by UNC Facilities Management prior to installation.

SITE RESTORATION

- Scarify all planting areas for ground covers and lawns to a depth of at least 12”. Scarify in two directions. Include all areas subject to traffic during construction.

- Restore and test all sprinkler systems damaged by construction.

- The following activities require review by the owner prior to commencement:

- inspection of plant materials

- review of amended topsoil prior to placement

- sub-grade examination and scarification

- sample stake and tie set-up

- irrigation testing

SITE FURNISHINGS

- Standard site furnishings such as benches, trash containers, tables, bicycle racks and site lighting will be selected based on Campus Landscape Masterplan.

- The standard color for site furnishings and light fixtures unless otherwise noted, is Sherwin Williams Arlington Powder Coatings. PLS6 – 70026 UNC Norton Blue.

SIGNAGE

- All vinyl color selections are based on 3M Scotchcal Series 220 Premium film or 3M Scotchcal Series 230 translucent film as indicated.

Two-sided metal signs

Top blue 3M 220 Series Sapphire Blue

Bottom blue 3M 220 Series Light Navy

Yellow (logo and primary letters) 3M 220 Series Sunflower

Gray (trim and secondary letters) 3M 220 Series Medium grey

All vinyl to be 1^st surface application

Paint (legs) Kwal 8773m Dauphin Grey H34

Two-sided Lighted Lexan (clear) signs

Top Blue 3M 230 Series Cobalt

(2^nd surface application)

Bottom Blue 3M 220 Series** Light Navy

(2^nd surface application)

Yellow (logo and primary letters) 3M 230 Series Mango

(2^nd surface application, cutout)

Gray (trim and secondary letters) 3M 230 Series Silver Grey

(2^nd surface application, cutout)

Paint (cabinet) Kwal 8773m Dauphin Grey H34

** Note: the bottom blue vinyl is not a translucent film.