Downtown Windsor Alley Enhancement Project Schematic Design Windsor, CO November 2019 Table of Contents • Existing Conditions • Existing Utilities • Circulation and Parking Diagram • Waste Disposal Diagram • Lessons Learned • Opportunities and Constraints • Shadow Study • Ingredients for a Successful Alley • Context Plan • Overall Site Plan - Preferred Concept • Perspective Sketches • Elevations • Cost Estimate BOARDWALK PARK
RAILROAD
113
LIMIT OF WORK 5TH STREET
430 428 426 424 422 420 414 408 406 404 400
MAIN STREET
0 20 40 80’
2019.11.26 Town of Windsor - DDA Alley Existing Conditions 10 9
8 13 7 11 6 5TH STREET 5 4
3 12 14 2 1
MAIN STREET
1 Existing utilities at entrance 2 Looking west from existing parking area 3 Existing back-of-house condition 4 Existing back-of-house condition
5 Existing overhead utilities 6 Existing overhead utilities 7 Looking west - mid block of alley 8 Looking east - mid block of alley 9 Along railroad ROW
10 Dumpsters in gravel area 11 Existing back-of-house condition 12 Mid block opening 13 Drainage path through existing parking 14 East entrance - looking east area
2019.11.26 Town of Windsor - DDA Alley Existing Conditions LEGEND
Underground Electric BOARDWALK PARK Overhead Electric Sewer Fiber Optic Water Storm Drainage
Existing Fire Hydrant
RAILROAD
ELECTRIC
WATER OVERHEAD ELECTRIC 5TH STREET
SEWER
STORM
FIBER
MAIN STREET
0 20 40 80’
2019.11.26 Town of Windsor - DDA Alley Existing Utilities BOARDWALK PARK
NO CROSSING
RAILROAD RIGHT-OF-WAY
Full movement intersection
NO CROSSING
TWO-WAY TRAFFIC WITHIN ALLEY
Business parking off of alley 5TH STREET
Existing sidewalk along Main St
Full movement intersection MAIN STREET
0 20 40 80’
2019.11.26 Town of Windsor - DDA Alley Circulation and Parking Diagram LEGEND
95 gallon 4 yard dumpster
BOARDWALK PARK 6 yard dumpster
Grease container
EXISTING TRASH INVENTORY
Container Size # of containers
95 gallon 4
4 yard 5
4 yard (recycling) 1
6 yard 2
Grease 1 5TH STREET
MAIN STREET
0 20 40 80’
2019.11.26 Town of Windsor - DDA Alley Waste Disposal Diagram PREVIOUS DESIGN CHALLENGES - LESSONS LEARNED IMPROVING PREVIOUS DESIGN EFFORTS - No permeable paving, bioswales or other L.I.D. types - Drainage improvements to existing systems only, limit new storm pipe - Planting along historic building foundations challenging - Substantial turning radii where possible - 2% max cross slope except where existing conditions prohibit - Bollard and raised curb protection for planting and site elements - Some drainage required across drive approaches/sidewalks - Vertical planters where appropriate - Planter anchors to prevent movement are ideal - Bollards with higher vehicle impact rating, deliberate - No flush curbs/headers aesthetics - No pavement cross sections greater than 2’ in depth - Small seating areas, individual configurations - One way alley ROW enforcement challenging - Pavers w/higher compressive strength - No flat, long benches or seating - Trees either pruned or alternative columnar species - Trash enclosures require opening gates into ROW - Trash enclosure gate materials/construction - No paving mounted lights - LED pedestrian luminaires, use sconces where appropriate - No trash compactors in enclosures - Enlarged concrete header where appropriate to minimize paver cuts/ foundation impacts
2019.11.26 Town of Windsor - DDA Alley Lessons Learned BOARDWALK PARK
NO CROSSING AT RAILROAD
RAILROAD RIGHT-OF-WAY
Create strong gateway into alley - visual cue from street Adjacent DDA Lot Fence along area to block vehicles PLANTED EDGE WITH ALLEY AMENITIES Improve alley pavement
Enhance edge along alley
Create strong visual connection/cue
Improve alley drainage
Existing sidewalk along 5th St
Provide enhancements from Main Street into alley Analyze and plan for semi-truck movements in and out of east end 5TH STREET of alley Create strong gateway into alley - visual cue from street Existing sidewalk along Main St
Improve site distance views to
on coming traffic MAIN STREET
0 20 40 80’
2019.11.26 Town of Windsor - DDA Alley Opportunities and Constraints Diagram 5TH STREET
MAIN STREET
FALL EQUINOX - SEPT 23 WINTER SOLSTICE - DEC 21
SPRING EQUINOX - MAR 19 SUMMER SOLSTICE - JUN 20
2019.11.26 Town of Windsor - DDA Alley Shadow Study VEHICLE RATED SECURITY BOLLARD CALPIPE BOLLARD TRASH ENCLOSURE SIDE PANELS TRASH ENCLOSURE GATE DESIGN SEMI-TRANSPARENT
SIMPLE LED FIXTURE TIVOLI LIGHTING
PLANTER POTS PLANTER POTS
COLUMNAR TREES PAVER BLEND WITH BLOCK OF HERRINGBONE PAVER PATTERN COLOR
TIVOLI LIGHTING HOLOPHANE SITELINK POLE
2019.11.26 Town of Windsor - DDA Alley Ingredients for a Successful Alley Birch St
Windsor Lake
Boardwalk Park Museum
Windsor Town Public Works Lot
Boardwalk Park
Ash Street Windsor DDA Parking Railroad Lot Study
DDA Lot
Windsor Alley Project Area 6th Street 5th Street Weld CR 17 Weld
Main Street Main Street 4th
Street The Mill
2019.11.26 Town of Windsor - DDA Alley Context Plan 1 Unique radial paver pattern Enhanced alley entrance Announce entry and create clear All herringbone paver pattern with view corridor onto street blocks of color 1 1
Trash enclosure, typ. - Includes (3)-3 yard dumpsters One gate opening with separate pedestrian entrance 3 Shadow panel - back lit with LED lighting at night
Columnar tree, typ. 2 12-15’ high pedestrian light pole Tivoli lighting, typ. with hanging planter baskets 3 LED SPOT LIGHTS
Seating area - benches and planter pots 3
B’
2 3
A A’
B
2
4 Enhanced entry into/out of alley Announce entry and create clear view corridor onto street 4 Enhanced ‘pedestrian only’ alley connection Includes informal bench seating or tables/ chairs
0 20 40 80’
2019.11.26 Town of Windsor - DDA Alley Overall Site Plan - Preferred Concept 12’-15’ high pedestrian light pole Informal bench Precast concrete Tivoli lighting, min. 14” with hanging planter baskets seating pavers with decorative high radial layout
Adjacent property Buffer planting Columnar trees for Shadow panel Buffer planting screening structure - back lit with with ornamental LED lighting at night trees
2019.11.26 Town of Windsor - DDA Alley Perspective Sketch Adjacent property Green screen Shadow panel structure - 12’-15’ high pedestrian Adajcent DDA lot, not in with outdoor patio back lit with LED lighting light pole with hanging project at night, vine plantings planter baskets
Buffer planting Precast concrete Precast concrete Tivoli lighting, min. Informal seating pavers in “radial pavers to form 14’ high area with benches pattern” drain pan and planters
2019.11.26 Town of Windsor - DDA Alley Perspective Sketch Existing alley extents Existing alley extents
Adjacent building Existing adjacent Planting area Alley with pavers, Existing adjacent Adjacent building 414 Main St. property with street movable tables and property (alley behind), 408 Main St. light chairs, tivoli lighting screened by green wall/ at 14’ ht min. fence
0 2 4 8’
2019.11.26 Town of Windsor - DDA Alley Elevation A-A’ Existing alley extents Existing alley extents
Adjacent building Existing adjacent Planting area Alley drive with pavers, Seating area Planting area Adjacent property 408 Main St. property (alley behind), with street tivoli lighting at 14’ ht with benches, with 6” curb screened by green wall/ light, 6” curb min., overhead shade planters edge fence edge structure feature with artistic down lighting
0 2 4 8’
2019.11.26 Town of Windsor - DDA Alley Elevation B-B’ Windsor DDA Alley Enhancement Project Estimate of Probable Costs Plan Date: November 2019 Prepared by: Russell + Mills Studios
EXTENDED ITEM UNIT UNIT COST QTY NOTES COST CONSTRUCTION General Conditions LS 1 $72,279.00 5% of subtotal Traffic Control ALLOW $10,000.00 1 $10,000.00 Renting Parking Spots for Staging/ Employee Parking ALLOW $5,000.00 1 $5,000.00 Erosion Control ALLOW $3,000.00 1 $3,000.00 Construction Surveying ALLOW $12,000.00 1 $12,000.00 CATEGORY TOTAL CATEGORY SUBTOTAL $102,279.00
DEMOLITION Remove Existing Concrete and Asphalt S.F. $2.00 27,000 $54,000.00 Remove Curb and Gutter L.F. $10.00 236 $2,360.00 Saw Cutting Pavement for Removal L.F. $3.56 1,785 $6,354.60 Remove Existing Tree EA. $1,000.00 1 $1,000.00 Protection of Existing Facilities/Structures LS $3,000.00 1 $3,000.00 Excavation and Haul Material C.Y. $125.30 350 $43,855.00 CATEGORY SUBTOTAL $110,569.60
UTILITIES Connect Irrigation to Water Main LS $7,500.00 1 $7,500.00 Temporary Storm Drainage During Construction L.S. $1,500.00 1 $1,500.00 CATEGORY SUBTOTAL $9,000.00
SITE LIGHTING AND ELECTRICAL Electrical Distribution ALLOW $15,000.00 1 $15,000.00 Pedestrian Light EA. $7,200.00 20 $144,000.00 Pedestrain Light Footing EA. $1,750.00 20 $35,000.00 Tivoli Lights L.F. $53.00 1255 $66,505.46 Tivoli Poles EA. $5,200.00 1 $5,200.00 Light Attachment EA. $450.00 9 $4,050.00 Lighting Control Center LS $12,500.00 1 $12,500.00 Electrical Conduit ALLOW $30,000.00 1 $30,000.00 CATEGORY SUBTOTAL $312,255.46
SITE WORK Recondition Subbase to 95% SY $4.50 2,500 $11,250.00 6" Concrete Curb L.F. $20.00 431 $8,614.00 12" Concrete Header L.F. $23.00 1,903 $43,768.08 Curb and Gutter L.F. $22.00 272 $5,978.06 Concrete Flatwork S.F. $9.25 583 $5,389.05 Concrete Pavement Below Pavers S.F. $6.75 19,659 $132,700.58 8" #4 Smooth Dowels EA $7.50 950 $7,125.00 Unit Pavers on Concrete Base S.F. $21.00 19,659 $412,846.26 Signage ALLOW $3,000.00 1 $3,000.00 Kiosk in connector alley
CATEGORY SUBTOTAL $630,671.03
FURNISHINGS AND ARCHITECTURE Hanging Basket - Pedestrian Light EA. $800.00 40 $32,000.00 Planter Pots EA. $1,300.00 7 $9,100.00 Trash Receptacle EA. $1,250.00 6 $7,500.00 café seating EA. $1,300.00 6 $7,800.00 Bench EA. $1,300.00 9 $11,700.00 Bollard EA. $750.00 20 $15,000.00 Trash and Recycling Enclosure Fencing L.F. $350.00 75 $26,250.00 Trash and Recycling Enclosure Columns EA. $1,865.00 12 $22,380.00 Trash and Recycling Enclosure Gates EA. $8,500.00 2 $17,000.00 Shadow panel lighting element ALLOW $65,000.00 1 $65,000.00 Spot Light Installation ALLOW $1,500.00 8 $12,000.00
CATEGORY SUBTOTAL $225,730.00
PLANTING Landscaping Planting ALLOW $5.00 4855 $24,275.20 CATEGORY SUBTOTAL $24,275.20
IRRIGATION Full System L.S. $35,000.00 1 $35,000.00 CATEGORY SUBTOTAL $35,000.00
Subtotal $1,449,780.29
Estimating Contingency 15.0% $217,467.04
Owner Contingency 10.0% $144,978.03 Total $1,812,225.36