ballston quarter pedestrian bridge - Arlingtonva
BALLSTON QUARTER PEDESTRIAN BRIDGE MANAGER’S REPORT | 27 SEPTEMBER 2016
introduction 1
2
Project Introduction – Background + History
design
3
4
Project History – Base Concept
5
Public Process – Community Meetings
6
Project Approach – Design Principles
7 Site Development
BALLSTON QUARTER
STAFFORD PLACE
STAFFORD PLACE
BALLSTON QUARTER
8
Bridge Design – Development Study 2
9
Bridge Design – Aerial Image
10
Bridge Design – Street View
11
Bridge Design – Street View
12
Bridge Design – Street View
13
Bridge Design – View toward Mall
14
Bridge Design – View toward Stafford
15 Bridge Design – View of Public Art Opportunities
technical considerations 16
Stafford Place
Ballston Quarter Street Section
17
Wilson Blvd.
Bridge Design – Key Technical Considerations
18
Bridge Design – Key Technical Considerations
19
Bridge Design – Key Technical Considerations
BASE CONCEPT
BRIDGE DESIGN
Cost
$ 2 959 584
Cost
$ 4 102 447*
Features
No Public Involvement, Meets the Minimum Standard Established by the Site Plan Conditions
Features
Design is the Result of an Extensive Public Design Process
Reuses Existing Piers at Stafford Place, No Planters or Benches at the Street Level
New Piers, Planters + Benches Create Place Making at the Street Level
Glass Enclosed Walkway
Glass Enclosed Walkway, Benches Mid-Span Provide Area to Pause and Rest
Maintains 1:12 Ramp into Stafford Place + Handrails
Eliminates Ramp into Stafford Provides Universal Accessibility
Space is Ventilated + Unconditioned
* Cost is Established on a Not to Exceed Basis and Includes a 15% Contingency. Cost Overruns will be Borne by the Developer.
20
Space is Heated and Air Conditioned Provides Memorable Moment, Exceeds Community Expectations for the Project, Provides Redevelopment Benefits for Neighboring Land Owners
Walkway Comparison – Budget + Features
Pedestrian Bridge Pre Closure Messaging Locations 1
Top of metro escalators
2
Bottom of interior escalators
1
2 3
3
North entry to the
4
South1entry to the 9th St. bridge
5
9th
St. bridge
Interior walkway between 9th St. and Wilson Blvd. bridges
6
North entry to the Wilson Blvd. bridge
7
South entry to the Wilson Blvd. bridge
8
Mall interior before Wilson Blvd. bridge (near former FYE space)
4
5 6
7
8
21
ICEPLEX
Wayfinding – Public Messaging
CONSTRUCTION MEANS + METHODS ARE BEING ESTABLISHED FOR: Ceiling Treatment|Relationship of Steel to the Ceiling|Acoustics|Reveal Condition Supply Air and Return Air Detail Lighting (Inside|Outside|Concrete Piers, etc.) Connection between Piers and Underside of Bridge Finishes|Material Selections|Colors|Sample Board, etc. Final Pattern of the Zinc Panels Connection Condition at Each Building
Standing Seam Zinc
22
Structural Glass Support System
Concrete Support Piers
Development – Design Details
CONSTRUCTION MILESTONES Bridge Closes Mid-October 2016 Bridge + Mall Demo Begin Late October 2016 Bridge Construction Starts 01 March 2017 Mall + Bridge Open 13 September 2018 NEXT STEPS Share Designs with the Community (October Event Tentatively Planned)
23
Demolition of Existing Bridge Compete Construction Documents Bidding + Permitting Construction 2017-2018
Milestones – Next Steps
thank you
introduction 1
2
Project Introduction – Background + History
design
3
4
Project History – Base Concept
5
Public Process – Community Meetings
6
Project Approach – Design Principles
7 Site Development
BALLSTON QUARTER
STAFFORD PLACE
STAFFORD PLACE
BALLSTON QUARTER
8
Bridge Design – Development Study 2
9
Bridge Design – Aerial Image
10
Bridge Design – Street View
11
Bridge Design – Street View
12
Bridge Design – Street View
13
Bridge Design – View toward Mall
14
Bridge Design – View toward Stafford
15 Bridge Design – View of Public Art Opportunities
technical considerations 16
Stafford Place
Ballston Quarter Street Section
17
Wilson Blvd.
Bridge Design – Key Technical Considerations
18
Bridge Design – Key Technical Considerations
19
Bridge Design – Key Technical Considerations
BASE CONCEPT
BRIDGE DESIGN
Cost
$ 2 959 584
Cost
$ 4 102 447*
Features
No Public Involvement, Meets the Minimum Standard Established by the Site Plan Conditions
Features
Design is the Result of an Extensive Public Design Process
Reuses Existing Piers at Stafford Place, No Planters or Benches at the Street Level
New Piers, Planters + Benches Create Place Making at the Street Level
Glass Enclosed Walkway
Glass Enclosed Walkway, Benches Mid-Span Provide Area to Pause and Rest
Maintains 1:12 Ramp into Stafford Place + Handrails
Eliminates Ramp into Stafford Provides Universal Accessibility
Space is Ventilated + Unconditioned
* Cost is Established on a Not to Exceed Basis and Includes a 15% Contingency. Cost Overruns will be Borne by the Developer.
20
Space is Heated and Air Conditioned Provides Memorable Moment, Exceeds Community Expectations for the Project, Provides Redevelopment Benefits for Neighboring Land Owners
Walkway Comparison – Budget + Features
Pedestrian Bridge Pre Closure Messaging Locations 1
Top of metro escalators
2
Bottom of interior escalators
1
2 3
3
North entry to the
4
South1entry to the 9th St. bridge
5
9th
St. bridge
Interior walkway between 9th St. and Wilson Blvd. bridges
6
North entry to the Wilson Blvd. bridge
7
South entry to the Wilson Blvd. bridge
8
Mall interior before Wilson Blvd. bridge (near former FYE space)
4
5 6
7
8
21
ICEPLEX
Wayfinding – Public Messaging
CONSTRUCTION MEANS + METHODS ARE BEING ESTABLISHED FOR: Ceiling Treatment|Relationship of Steel to the Ceiling|Acoustics|Reveal Condition Supply Air and Return Air Detail Lighting (Inside|Outside|Concrete Piers, etc.) Connection between Piers and Underside of Bridge Finishes|Material Selections|Colors|Sample Board, etc. Final Pattern of the Zinc Panels Connection Condition at Each Building
Standing Seam Zinc
22
Structural Glass Support System
Concrete Support Piers
Development – Design Details
CONSTRUCTION MILESTONES Bridge Closes Mid-October 2016 Bridge + Mall Demo Begin Late October 2016 Bridge Construction Starts 01 March 2017 Mall + Bridge Open 13 September 2018 NEXT STEPS Share Designs with the Community (October Event Tentatively Planned)
23
Demolition of Existing Bridge Compete Construction Documents Bidding + Permitting Construction 2017-2018
Milestones – Next Steps
thank you
