Design Elements Issue Task Force March 12, 2014 1 Historic - - PowerPoint PPT Presentation

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Design Elements Issue Task Force March 12, 2014 1 Historic - - PowerPoint PPT Presentation

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Design Elements Issue Task Force March 12, 2014 1 Historic Character 2 Historic Character 3 Historic Character 4 Historic Character 5 Historic Character 6 Historic Character 7 Historic Character 8 Historic Character 9 Historic

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1

Design Elements Issue Task Force

March 12, 2014

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2

Historic Character

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3

Historic Character

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4

Historic Character

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5

Historic Character

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6

Historic Character

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7

Historic Character

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8

Historic Character

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9

Historic Character

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Historic Character

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Historic Character

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12

Historic Character

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Historic Character

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14

Historic Character

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Historic Character

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Historic Character

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Historic Character

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1

DDA Charrette

7th Street DDA Charrette and Public Open House

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2

DDA Charrette

7th Street DDA Charrette and Public Open House

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3

DDA Charrette

Elevator Tower Studies

Doors facing north and south preferred option over rotated elevator cab in which doors face east and west (not shown)

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4

DDA Charrette

River “Edge” Option

Application of canyon “landscape” to plaza

Linear walls transition to boulders/mountain landscape

Extend 7th Street paving theme to north side of street

Raise intersection at Grand Avenue to sidewalk level

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5

DDA Charrette

River “Park” Option

Introduce “green” into the plaza space

Provide moments of stone plazas to support sitting

Special paving at intersection with Grand Avenue

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6

DDA Charrette

River “Plaza” Option

Street as plaza

Strong stone seat walls to define river edge

Extend 7th Street paving across street and through plaza

Raise street to level of sidewalk

Potential to close street for events

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7

Elevators and Stairs

Two Layout Options:

 Layout A – Tower Facing North-South Direction  Layout B – Tower Facing East-West Direction

Depot right-of-way consideration

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8

Elevators and Stairs

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9

Elevators and Stairs

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Elevators and Stairs

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Elevators and Stairs

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Elevators and Stairs

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Elevators and Stairs

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Elevators and Stairs

Layout A

Pros:

Provides more direct path to elevator from Pedestrian Bridge

Tower location is more visible from Grand Avenue

Layout requires less upper landing area (less cost)

Cons:

Requires relocating 7th Street up to 6 feet (construction phasing coordination)

Tower location creates pinch point at upper level elevator doors

Tower location is only about 16 feet away from Grand Avenue Bridge

Layout B

Pros:

Does not require realignment of 7th Street

Tower location has more waiting area at elevators

Tower location is about 32 feet away from Grand Avenue Bridge Cons:

Tower layout requires pedestrians to walk around elevators when using stair access

Lower level access for elevators and stairs will be in the same area

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Elevators and Stairs

Amtrak Retaining Walls

(If working in Depot right-of-way)

 Stairs will be removed for

Pedestrian Bridge abutment

 Condition assessment of

existing walls

 Replace required portion

  • r full wall alignment

 Can use caissons to

minimize impact on walls

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Elevators and Stairs

Elevator Type and Operations

Elevator Design Criteria

Ride-in / ride-out function

Sized for bikes with trailers

As much glass as possible

Elevator Type – Traction vs. Hydraulic

Recommend – hydraulic hole less two piston type

Better option for application

Traction requires additional room on top of elevator shaft

Traction Estimated to be twice the cost of hydraulic

Elevator Controls

Pedestal option for call button

Doors on timer (no hold open or close button)

Motion detectors for lighting (exterior and interior)

Climate control (not required)

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Elevators and Stairs

Elevator Type and Operations

Mechanical Room

Estimated Size = 8 feet by 10 feet

Less than 50 feet from elevator

Environmental controls – requires ventilation and heating (to 50 deg F)

Machine room less elevator option – requires much larger, deeper shaft

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Elevators and Stairs

Handrails

Woven wire fabric type

Materials

Finishes

Removable option

Costs

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Elevators and Stairs

Bike Channels

 Concrete cast-in-place  Stair tread slope ~

25%

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Utilities

Pedestrian Bridge Layout and Tie-ins

 Follow elevator column  Build false wall or room option  Other concepts?

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Restrooms

Size and Service Level

Project replacing in kind

Location Options:

Incorporated into tower stairs – Space is limited – Close proximity to elevator pedestrians (odor concerns)

Under Grand Avenue Bridge – Not preferred location for structural reasons

With County parking garage – Location approximately one block from tower

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1

Priority of Aesthetic Enhancements

– What are the aesthetic priority areas for the residents of Glenwood Springs?

  • Pedestrian Bridge
  • Grand Avenue Bridge
  • Underpass - Safety
  • Plaza under Grand Avenue Bridge
  • Wing Street Connection to 8th Street
  • Landscaping
  • Retaining Walls
  • Sidewalks/Streetscape Furniture

South Side Aesthetics

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2

Plaza Under Grand Avenue Bridge

South Side Aesthetics

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3

South Side Aesthetics

Existing Conditions

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South Side Aesthetics

 The Under Bridge Environment Design Challenge

– There are three planes to design – floor, ceiling, and the in between space. – Dark – introduce light to make feel safe - even in daytime. – Security – design to activate the space with right people and activities. – Vegetation struggles to grow – design primarily with hard surfaces. – Grade changes- Plaza is 2 feet lower than Wing Street on the east. – Tying in with the proposed sidewalk improvements on the south side of 7th Street. – Design flexible and desirable environment. – Make it memorable – a place people want to return to.

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Concept One:

Continuation of 7th Street Improvements

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South Side Aesthetics

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South Side Aesthetics

Stone Seat walls to alternate with concrete stairs Elevation of Plaza under Grand Avenue Bridge

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South Side Aesthetics

Concrete with bands of sandstone. Continues the feel and the paving pattern from 7th Street. Trench drain Moveable Café furniture to maintain flexibility Abutment faced with sandstone.

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South Side Aesthetics

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South Side Aesthetics

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Concept Two:

Connecting the plaza across 7th Street

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South Side Aesthetics

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South Side Aesthetics

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South Side Aesthetics

Ribbons of colored concrete Concrete planters Moveable Café furniture to maintain flexibility

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South Side Aesthetics

 Abutment wall and Grand Ave walls provide an

  • pportunity to incorporate Todd Wadsworth artwork

with R.L.Wadsworth/Granite.

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South Side Aesthetics

 Incorporate memorial bricks in plaza

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South Side Aesthetics

 Lighting opportunities to create a dynamic, active, safe

environment.

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South Side Aesthetics

 Wing Street connections to 8th Street

– Incorporate quality materials – Planter walls or planters – Streetscape furniture – Street lighting

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Pedestrian Bridge

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Pedestrian Bridge

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Pedestrian Bridge

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Pedestrian Bridge

Constant Depth Girder Variable Depth Girder

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Pedestrian Bridge

Constant Depth Girder

All utilities are concealed Slim profile with 5’ section Easier access for maintenance

Variable Depth Girder

15 inch water line exposed

Varying depth section

More challenging to maintain

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Pedestrian Bridge

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Pedestrian Bridge

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Pedestrian Bridge

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Pedestrian Bridge

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Pedestrian Bridge

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Pedestrian Bridge

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Pedestrian Bridge

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Pedestrian Bridge

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Pedestrian Bridge

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Pedestrian Bridge

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1

Grand Avenue Bridge

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2

Grand Avenue Bridge

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3

Grand Avenue Bridge

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Grand Avenue Bridge

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Grand Avenue Bridge

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Grand Avenue Bridge

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Grand Avenue Bridge

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Grand Avenue Bridge

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Grand Avenue Bridge

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Grand Avenue Bridge

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Grand Avenue Bridge

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Grand Avenue Bridge

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South Side Aesthetics

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Grand Avenue Bridge

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South Side Aesthetics

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Grand Avenue Bridge

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Grand Avenue Bridge

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1

Priority of Aesthetic Enhancements

– What are the aesthetic priority areas for the residents of Glenwood Springs?

  • Pedestrian Bridge
  • Grand Avenue Bridge
  • Underpass - Safety
  • Plaza under Grand Avenue Bridge
  • Wing Street Connection to 8th Street
  • Landscaping
  • Retaining Walls
  • Sidewalks/Streetscape Furniture

North Side Aesthetics

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 Character of Glenwood Springs

Aesthetics

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 Character of Glenwood Springs

Aesthetics

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Landscaping

Landscaping

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 Three landscape options

– Traditional – Xeric – Organic

 Take into consideration

– Appearance – Level of maintenance

Landscaping

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 Landscape Character

Option 1- Traditional

– Formal landscaping – Mass plantings with landscape boulders – Shrubs, perennials and

  • rnamental grasses

– High maintenance

Landscaping

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 Landscape Option 1- Traditional Plan

Landscaping

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 Landscape Character

Option 2- Xeric

– Xeric plants – Alternating plantings with bands of rock mulch – Plantings in geometric configurations – Lower maintenance

Landscaping

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 Landscape Option 2- Xeric Plan

Landscaping

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 Landscape Character

Option 3- Organic

– Free flowing landscaping – River cobble stream bed – Shrubs and ornamental grasses – Landscape boulders – Medium maintenance

Landscaping

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 Landscape Option 3- Organic with River Cobble Stream

Landscaping

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Underpass Entry

Underpass

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 Underpass

– 121 feet long – 16 feet wide – 8- to 9-foot clearance inside the underpass

Underpass

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 Option 1 - Historic Influence

– Monuments are designed to reflect the architecture of Glenwood Springs through color and materials

– Monuments have high end finishes – Higher cost

Underpass

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Underpass

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 Option 2 - Continuity with Grand Avenue Bridge Design

– Repeats the pier aesthetic for underpass monumentation creating continuity with the bridge structures – Monuments can be designed with flagstone or a form liner – High to medium costs

Underpass

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 Option 3 – Enhanced Concrete Entryway

– Raised concrete with scoring – Lower costs

Underpass

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 Underpass Option 1

– Continues flagstone from monuments through underpass – Lighting is architecturally significant – High cost

Underpass

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Underpass

 Underpass Option 2

– Form liners mimicking the form of mountains and canyons – Medium/lower cost

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 Underpass Option 3

– Opportunity to incorporate Todd Wadsworth Artwork from R.L.Wadsworth/Granite

Underpass

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21 walls included in the Grand Avenue Project

Retaining Walls

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 Walls on the North Side

Retaining Walls

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Retaining Walls

 Walls on the South Side

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 Aesthetic Wall Enhancements

– Quality materials

  • Sandstone
  • Brick

– Stone form liners – Brick or flagstone accents – Art

 Base Wall Treatments

– Form liner

Retaining Walls

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 Quality Materials

– Stone – Brick – High cost

Retaining Walls

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Retaining Walls

 Stone Form Liners

– Form liners mimic stone or brick – Medium cost

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 Concrete Wall with Stone or Brick

Accents

– Accent concrete wall with brick or stone – Medium to low cost

Retaining Walls

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 Base Form Liners

– Variety of patterns – Medium/lower cost

Retaining Walls

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 Opportunity to incorporate Todd Wadsworth

artwork with R.L. Wadsworth/Granite

Retaining Walls

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 Walls on the north side

Retaining Walls

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Retaining Walls

 Walls on the south side

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 Streetscape

– Furniture – Lighting

Streetscape

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 Wayfinding

– Vehicular – Pedestrian/ bicyclist

Streetscape