HWYS_polyline

Metadata also available as

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator:
Jonathan Allan, Oregon Department of Geology and Mineral Industries
Publication_Date: 2005
Title: HWYS_polyline
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: Special Paper 37
Publication_Information:
Publication_Place: Portland, Oregon
Publisher: Oregon Department of Geology and Mineral Industries
Online_Linkage:
\\D4HG5R41\Jons-Data\dogami_projects\odot_cobble_berm\documents\gis\arcgis\Quarry_Rock_point.shp
Description:
Abstract:
Gravel beaches have long been recognized as one of the most efficient forms of "natural" coastal protection, exhibiting a remarkable degree of stability in the face of sustained wave attack and as a result have been suggested as a form of shore protection. Such structures are variously termed "cobble berms", "dynamic revetments" or "rubble beaches" and essentially involve the construction of a gravel beach at the shore, in front of the property to be protected. These structures are effective in defending properties because the sloping, porous cobble beach is able to disrupt and dissipate the wave energy by adjusting its morphology in response to the prevailing wave conditions. Since the particle sizes used in their construction are generally small and their placement does not require special attention, dynamic revetments are much easier and cheaper to construct than a conventional riprap revetment or seawall. Furthermore, because dynamic revetments are analogous to a natural cobble beach, they are aesthetically pleasing compared with "hard" engineered solutions, which may lessen the rigors of permitting such structures for coastal protection. There remain, however, unanswered questions about their design particularly along the high-energy Oregon coast. This includes the sizes and types of gravel to be used, their slopes and crest elevations, the volume of material to be included in the berm, and where the material may be obtained to construct such features.

An examination of the morphological and sedimentary characteristics of 27 profile lines at 13 gravel beach study sites along the Oregon coast revealed that the heights of the gravel beaches ranged from 5.7 to 7.1 m (19-23 ft), while the slopes of the beaches varied from 7.7º to 14.1º. Mean grain-sizes were found to range from -4.9Ø (30 mm) to -7.0Ø (128 mm), and were classified as well sorted to moderately well sorted. However, a comparison of these parameters among stable versus eroding gravel beaches revealed no clear discernable pattern. In contrast, it would appear that a key difference in the stability of the gravel beaches was the volume and width of gravel contained on the beach, with beaches containing larger volumes of gravel (> 50 m3.m-1 (538 ft3.ft-1)) and larger widths (> 20 m (66 ft)) being the most stable. Based on this analysis, a crest elevation of ~7.0 m (23 ft), mean grain-size of no less than -6.0Ø (64 mm), and a beach slope of 11º was recommended in future designs of dynamic revetments for the Oregon coast. While numerous quarry sites were identified that could supply crushed rock for the building of a dynamic revetment, rounded gravels were more difficult to locate and tended to be located furthest from the coast increasing the costs that would be incurred to transport the material. Without doubt, the largest constraint that likely limits their adoption is the cost of transporting the gravels to a particular site.

Purpose: Other Oregon highways
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2005
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -124.802502
East_Bounding_Coordinate: -116.738363
North_Bounding_Coordinate: 46.283039
South_Bounding_Coordinate: 41.920394
Keywords:
Theme:
Theme_Keyword_Thesaurus:
REQUIRED: Reference to a formally registered thesaurus or a similar authoritative source of theme keywords.
Theme_Keyword: Dynamic revetment
Theme_Keyword: gravel beaches
Theme_Keyword: sediments
Theme_Keyword: coastal engineering design
Theme_Keyword: beach profiles
Theme_Keyword: sediment sources
Theme_Keyword: quarries
Theme_Keyword: Oregon
Theme_Keyword: erosion
Place:
Place_Keyword: Oregon coast
Access_Constraints: None
Use_Constraints: None
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Jonathan Allan
Contact_Organization: Oregon Department of Geology and Mineral Industries
Contact_Position: Coastal Geomorphologist
Contact_Address:
Address_Type: mailing address
Address: P.O. Box 1033
City: Newport
State_or_Province: Oregon
Postal_Code: 97365
Country: USA
Contact_Voice_Telephone: 541-574-6658
Contact_Facsimile_Telephone: 541-265-5241
Contact_Electronic_Mail_Address: jonathan.allan@dogami.state.or.us
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535
Cross_Reference:
Citation_Information:
Originator: Jonathan C. Allan, Ron Geitgey, and Roger Hart
Publication_Date: 2005
Title:
Dynamic Revetments for Coastal Erosion Stabilization: A Feasibility Analysis for Application on the Oregon Coast
Series_Information:
Series_Name: Special Paper 37
Publication_Information:
Publication_Place: Portland, Oregon
Publisher: Oregon Department of Geology and Mineral Industries
Other_Citation_Details:
Suggested citation: Allan, J.C., Geitgey, R. and Hart, R., 2005,Dynamic Revetments for Coastal Erosion Stabilization: A Feasibility Analysis for Application on the Oregon Coast: Oregon Department of Geology and Mineral Industries Special Paper SP-37

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Source_Used_Citation_Abbreviation: C:\DOCUME~1\JONATH~1\LOCALS~1\Temp\xml23.tmp

Spatial_Data_Organization_Information:
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Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count: 8389

Spatial_Reference_Information:
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Map_Projection:
Map_Projection_Name: Lambert Conformal Conic
Lambert_Conformal_Conic:
Standard_Parallel: 43.000000
Standard_Parallel: 45.500000
Longitude_of_Central_Meridian: -120.500000
Latitude_of_Projection_Origin: 41.750000
False_Easting: 1312335.958000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.004096
Ordinate_Resolution: 0.004096
Planar_Distance_Units: Foot (International)
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System of 1980
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Datum_Name: North American Vertical Datum of 1988
Altitude_Distance_Units: Feet

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: HWYS_polyline
Attribute:
Attribute_Label: FID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: COUNTY
Attribute:
Attribute_Label: NAME
Attribute:
Attribute_Label: CODE
Attribute:
Attribute_Label: RECNUM
Attribute:
Attribute_Label: SOURCE
Overview_Description:
Entity_and_Attribute_Overview:
Name CODE County Recnum Source

Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Don Haines
Contact_Organization:
Nature of the Northwest, Oregon Department of Geology and Mineral Industries
Contact_Address:
Address_Type: mailing and physical address
Address: 800 N.E. Oregon Street, Suite 177
City: Portland
State_or_Province: Oregon
Postal_Code: 97232
Country: USA
Contact_Voice_Telephone: (503) 872-2750
Contact_TDD/TTY_Telephone: (503) 872-2752
Contact_Electronic_Mail_Address: info@naturenw.org
Hours_of_Service: 8 - 5
Resource_Description: Downloadable Data
Standard_Order_Process:
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Metadata_Reference_Information:
Metadata_Date: 20050922
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
REQUIRED: The organization responsible for the metadata information.
Contact_Person: REQUIRED: The person responsible for the metadata information.
Contact_Address:
Address_Type:
REQUIRED: The mailing and/or physical address for the organization or individual.
City: REQUIRED: The city of the address.
State_or_Province: REQUIRED: The state or province of the address.
Postal_Code: REQUIRED: The ZIP or other postal code of the address.
Contact_Voice_Telephone:
REQUIRED: The telephone number by which individuals can speak to the organization or individual.
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Extensions:
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Profile_Name: ESRI Metadata Profile
Metadata_Extensions:
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Profile_Name: ESRI Metadata Profile

Generated by mp version 2.8.6 on Thu Sep 22 09:03:04 2005