Mandatory Referral Review Submission1919 Retaining Walls and Noise BarriersRetaining Walls and Noise...
Transcript of Mandatory Referral Review Submission1919 Retaining Walls and Noise BarriersRetaining Walls and Noise...
11May 1, 2006
Mandatory Referral Review SubmissionMandatory Referral Review Submission
Montgomery CountyMaryland-National Capital Park and Planning Commission
22
Table of ContentsTable of Contents• Part 1: Bridges, Retaining Walls, Noise Barriers
Bridges (General) 3Overpass Bridges 6Bridges in Parks 17Retaining Walls / Noise Barriers 19Olde Mill Run Deckover 20Noise Barrier Options 21
• Part 2: Traffic Elements 25Sign Structures 26Toll Gantries 27Traffic Barrier – W-beam 28Roadway Lighting 29
• Part 3: Landscape ArchitectureContext / Character 30Plan Development 31Planting Zones 32
• Part 1: Bridges, Retaining Walls, Noise BarriersBridges (General) 3Overpass Bridges 6Bridges in Parks 17Retaining Walls / Noise Barriers 19Olde Mill Run Deckover 20Noise Barrier Options 21
• Part 2: Traffic Elements 25Sign Structures 26Toll Gantries 27Traffic Barrier – W-beam 28Roadway Lighting 29
• Part 3: Landscape ArchitectureContext / Character 30Plan Development 31Planting Zones 32
33
Aesthetic ElementsAesthetic Elements
TrafficTraffic
StructuresStructuresLandscapeLandscape
ArchitectureArchitecture
44
Aesthetic Approach to BridgesAesthetic Approach to Bridges
• Create visual continuity by establishing an ICC statement for “visible” bridges
• Most significant opportunity is for roads spanning over ICC
Establish community gateways at key areas (Olde Mill Run Deckover, MD 97, MD 182, MD 650)Provide complementary variety along corridor – gateways flanked by stone overpass and then granite overpass
• Interchange Bridges and Environmental Crossings will have some consistent details with flexibility in type of superstructure
• Create visual continuity by establishing an ICC statement for “visible” bridges
• Most significant opportunity is for roads spanning over ICC
Establish community gateways at key areas (Olde Mill Run Deckover, MD 97, MD 182, MD 650)Provide complementary variety along corridor – gateways flanked by stone overpass and then granite overpass
• Interchange Bridges and Environmental Crossings will have some consistent details with flexibility in type of superstructure
55
General ThemeGeneral Theme
• Inviting open appearance
• Pleasing curved shapes
• Softer edges
• Earth tone colors
• Natural textures – stone, granite, fractured fin
• Inviting open appearance
• Pleasing curved shapes
• Softer edges
• Earth tone colors
• Natural textures – stone, granite, fractured fin
66
Community GatewaysCommunity Gateways
6
• Stone textures in elevation
• Pilasters to visually anchor ends
• Ornamental fence and light fixtures
• Curved top to wingwalls
• Granite texture in pier
• Formliner appearance stained gray with earth tone highlights
77
Stone OverpassStone Overpass
• Similar textures to gateways
• Emphasize horizontal nature
• Eliminated pilasters, ornamental fence and lights
88
Granite OverpassGranite Overpass
• Light granite texture in elevation
• Similar staining technique
• Fractured fin formliner in pier
99
Consistent Features forBridges over ICC
Consistent Features forBridges over ICC
• Steel Haunched Girders of Weathering Steel
• Stub abutments with curved cheekwalls and rounded corners
• Stone formliners stained gray with earthtone highlights
1010
Consistent Features forBridges over ICC
Consistent Features forBridges over ICC
• Riprap slope protection with earth tone colors banded by large pavers in end slopes and medians
• Piers reflect curved shape in elevation and end view
• Formliner stained gray with earthtone highlights
1111
Bridges over ICCBridges over ICCMuncaster Mill
1212
Bridges over ICCBridges over ICCMuncaster Mill Emory Lane
1313
Bridges over ICCBridges over ICCMuncaster Mill Emory Lane MD 97
1414
Bridges over ICCBridges over ICCMuncaster Mill Emory Lane MD 97 Norbeck
1515
Bridges over ICCBridges over ICCMuncaster Mill Emory Lane MD 97
Longmeade
Norbeck
1616
Bridges over ICCBridges over ICCMuncaster Mill Emory Lane MD 97 Norbeck
Longmeade
1717
Bridges in ParksBridges in Parks
• Stub abutments with curved cheekwalls and rounded corners
• Granite formliner in abutments and parapets
• Curved shaped piers with fractured fin formliner
• Steel or concrete girder allowed• Parapet with railing
• Stub abutments with curved cheekwalls and rounded corners
• Granite formliner in abutments and parapets
• Curved shaped piers with fractured fin formliner
• Steel or concrete girder allowed• Parapet with railing
Baseline for park bridges will have some consistent details with flexibility in type of superstructure
1818
Bridges in ParksBridges in Parks
• Signature Arch Bridge• Concrete arches and girders• Curved cheekwalls with
rounded corners• Granite formliner in
abutments and parapet
• Signature Arch Bridge• Concrete arches and girders• Curved cheekwalls with
rounded corners• Granite formliner in
abutments and parapet
• Parapet with railing• Parapet with railing
1919
Retaining Walls and Noise BarriersRetaining Walls and Noise Barriers
• Taller retaining walls incorporate large random cut stone pattern
• Flexibility in smaller walls allowing stone or granite patterns
• Four noise barrier options on roadway side provide variety while complementing other corridor aesthetics
• Community side of noise barriers will have choice of fuzzy rake or exposed aggregate finishes
• Taller retaining walls incorporate large random cut stone pattern
• Flexibility in smaller walls allowing stone or granite patterns
• Four noise barrier options on roadway side provide variety while complementing other corridor aesthetics
• Community side of noise barriers will have choice of fuzzy rake or exposed aggregate finishes
2020
Portal Walls atOlde Mill Run Deckover
Portal Walls atOlde Mill Run Deckover
2121
Noise Barriers – Option 1Noise Barriers – Option 1
Fractured fin with granite band inmiddle
2222
Noise Barriers – Option 2Noise Barriers – Option 2
Fractured fin with granite band on top
2323
Noise Barriers – Option 3Noise Barriers – Option 3
Stone with concreteposts
2424
Noise Barriers – Option 4Noise Barriers – Option 4
Stone and granitecombination
2525
Traffic ElementsTraffic Elements
• Incorporate curved shapes and rounded elements
• Use earth tone colors
• Provide durable, lasting appearance
• Incorporate curved shapes and rounded elements
• Use earth tone colors
• Provide durable, lasting appearance
2626
Sign Structures - OverheadSign Structures - Overhead
• Curved round supports• Multiple signs same height aligned with bottom chord• Fusion bonded polyester powder coating over galvanized
steel to achieve dark brown color
• Curved round supports• Multiple signs same height aligned with bottom chord• Fusion bonded polyester powder coating over galvanized
steel to achieve dark brown color
2727
Toll GantriesToll Gantries
• Similar appearance to overhead sign structures• Curved round supports• Dark brown color• Trailing gantries behind sign structures
• Similar appearance to overhead sign structures• Curved round supports• Dark brown color• Trailing gantries behind sign structures
2828
Traffic Barriers W-BeamTraffic Barriers W-Beam
• Weathering steel guardrail along roadway edges
• Metalized posts below grade• Dark brown painted metalized
connections to concrete barriers
• Weathering steel guardrail along roadway edges
• Metalized posts below grade• Dark brown painted metalized
connections to concrete barriers
2929
Roadway LightingRoadway Lighting
• Cobra Head• Curved light poles• Fusion bonded polyester powder
coating over galvanized steel to achieve dark brown color
• Cobra Head• Curved light poles• Fusion bonded polyester powder
coating over galvanized steel to achieve dark brown color
3030
Forest
Meadow
HistoricResidential
LANDSCAPE ARCHITECTURECONTEXT AND CHARACTER
LANDSCAPE ARCHITECTURECONTEXT AND CHARACTER
3131
Concept Plan Development
Site Analysis
Design Development
Construction Document
3232
Planting Zone TypesPlanting Zone Types• Bridge Abutment/
Embankment
• Bike Trail Area
• Cashell Farm MOA
• Deckover Structure
• Forest Edge
• Interchanges/Gateways
• Median
• Roadside Screening
• Street Tree
• Storm Water Management Area
• Sound Barrier/Retaining Wall
3333
Planting Zone TypesPlanting Zone Types• Bridge Abutment/
Embankment
• Bike Trail Area
• Cashell Farm MOA
• Deckover Structure
• Forest Edge
• Interchanges/Gateways
• Median
• Roadside Screening
• Street Tree
• Storm Water Management Area
• Sound Barrier/Retaining Wall
3434
Planting Zone TypesPlanting Zone Types• Bridge Abutment/
Embankment
• Bike Trail Area
• Cashell Farm MOA
• Deckover Structure
• Forest Edge
• Interchanges/Gateways
• Median
• Roadside Screening
• Street Tree
• Storm Water Management Area
• Sound Barrier/Retaining Wall
3535
Planting Zone TypesPlanting Zone Types• Bridge Abutment/
Embankment
• Bike Trail Area
• Cashell Farm MOA
• Deckover Structure
• Forest Edge
• Interchanges/Gateways
• Median
• Roadside Screening
• Street Tree
• Storm Water Management Area
• Sound Barrier/Retaining Wall
3636
Planting Zone TypesPlanting Zone Types• Bridge Abutment/
Embankment
• Bike Trail Area
• Cashell Farm MOA
• Deckover Structure
• Forest Edge
• Interchanges/Gateways
• Median
• Roadside Screening
• Street Tree
• Storm Water Management Area
• Sound Barrier/Retaining Wall
3737
Planting Zone TypesPlanting Zone Types• Bridge Abutment/
Embankment
• Bike Trail Area
• Cashell Farm MOA
• Deckover Structure
• Forest Edge
• Interchanges/Gateways
• Median
• Roadside Screening
• Street Tree
• Storm Water Management Area
• Sound Barrier/Retaining Wall
3838
Planting Zone TypesPlanting Zone Types• Bridge Abutment/
Embankment
• Bike Trail Area
• Cashell Farm MOA
• Deckover Structure
• Forest Edge
• Interchanges/Gateways
• Median
• Roadside Screening
• Street Tree
• Storm Water Management Area
• Sound Barrier/Retaining Wall
3939
Planting Zone TypesPlanting Zone Types• Bridge Abutment/
Embankment
• Bike Trail Area
• Cashell Farm MOA
• Deckover Structure
• Forest Edge
• Interchanges/Gateways
• Median
• Roadside Screening
• Street Tree
• Storm Water Management Area
• Sound Barrier/Retaining Wall
4040
QUESTIONS&
COMMENTS
QUESTIONS&
COMMENTS