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bridges

FGDC XML
Identification Information
Citation Information
Originator Maine Department of Transportation, Bureau of Planning
Publication Date 20130125
Title bridges
Geospatial Data Presentation Form vector digital data
Online Linkage http://www.maine.gov/megis/catalog/
Abstract Represents locations of bridges along Maine's public roads with a span of greater than 10 feet. Strut bridges that have spans of less than 10 feet are not included. Point attributes include ownership/maintenance jurisdiction, overall superstructure, substructure, deck, and culvert conditions. Users should always note the publicaton date.
Purpose Developed for planning purposes. Users must assume responsibility in determining the usability of this data for their purpose.
Supplemental Information Appended bridges 1162 and 3513. Date of last TIDE load update 03/19/2010.
Time Period of Content
Calendar Date 20101001
Time of Day unknown
Currentness Reference publication date
Status
Progress In work
Maintenance and Update Frequency Continually
Bounding Coordinates
West Bounding Coordinate -71.135296
East Bounding Coordinate -66.887232
North Bounding Coordinate 47.361954
South Bounding Coordinate 43.075838
Keywords
Theme Bridge, Structure, Span, Bridge Number, INFRASTRUCTURE, Transportation (Maine GIS Thesaurus-Theme)
Place Maine, USA, United States of America (Maine GIS Thesaurus-Place)
Stratum Human Dimensions (GCMD Parameter Keyword)
Access Constraints This data should not be redistributed without permission. Any secondary distribution must have this documentation appended.
Use Constraints Users must assume responsibility in determining the usability of this data for their purposes. Digital maps retain the accuracy of their source materials. The best use of data mapped at scales of 1:500,000 and 1:250,000 is in statewide planning and studies; at 1:100,000 in regional planning and studies; at 1:62,500 and 1:24,000 in detailed studies and local planning; and at 1:12,000 and 1:5,000 or larger scales in parcel level studies and detailed local planning. In the use of Maine GIS data, please check sources, scale, accuracy, current ness and other available information. Please confirm that you are using the most recent copy of both data and metadata from the Maine Department of Transportation (MEDOT).
Contact Organization Maine Department of Transportation, Results and Information Office
Address Type mailing address
Address 16 SHS
City Augusta
State or Province Maine
Postal Code 04333
Country United States
Contact Voice Telephone (207) 624-3300
Contact Facsimile Telephone (207) 624-3301
Hours of Service 7:30-4:30 Monday-Friday
Contact Instructions Ask for GIS Coordinator
Native Data Set Environment Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.1850
Horizontal Positional Accuracy Report Data accuracy 40ft + -
Process Description Originally created from 'TIDE' (MEDOT's GIS-enabled data warehouse). SQL is used to return query results from Oracle tables. These tables include information about ownership/maintenance jurisdiction, overall superstructure, substructure, deck, and culvert conditions for each Bridge. A unique identification codes (Bridge numbers) is assigned to each bridge which facilitates in the mapping of resultant dataset.
Process Date Publication Date
Direct Spatial Reference Method Vector
Point and Vector Object Information 
Planar Coordinate Encoding Method coordinate pair
Abscissa Resolution 0.000000
Ordinate Resolution 0.000000
Planar Distance Units meters
Horizontal Datum Name North American Datum of 1983
Ellipsoid Name Geodetic Reference System 80
Semi-major Axis 6378137.000000
Denominator of Flattening Ratio 298.257222
Entity Type Label GISVIEW.MEGIS.Bridges
Attribute Label OBJECTID
Attribute Definition Internal feature number.
Attribute Definition Source ESRI
Unrepresentable Domain Sequential unique whole numbers that are automatically generated.
Beginning Date of Attribute Values 
Attribute Label Shape
Attribute Definition Feature geometry.
Attribute Definition Source ESRI
Unrepresentable Domain Coordinates defining the features.
Beginning Date of Attribute Values 
Attribute Label BRIDGE_NO
Beginning Date of Attribute Values 
Attribute Label TOWN1_NAME
Attribute Definition Town name
Beginning Date of Attribute Values 
Attribute Label TOWN2_NAME
Attribute Definition Town name (If bridge is along townline)
Beginning Date of Attribute Values 
Attribute Label STRUCTURE_
Attribute Definition Structure Name
Beginning Date of Attribute Values 
Attribute Label CLVRT_CND
Attribute Definition The condition of the culvert and retaining walls
Enumerated Domain Value 0
Enumerated Domain Value Definition Bridge closed. Replacement necessary.
Enumerated Domain Value 1
Enumerated Domain Value Definition Bridge closed. Corrective action may put back in light service.
Enumerated Domain Value 2
Enumerated Domain Value Definition Integral wingwalls collapsed, severe settlement of roadway due to loss of fill. Section of culvert may have failed and can no longer support embankment. Complete undermining at curtain walls and pipes. Corrective action required to maintain traffic. Metal culverts have extreme distortion and deflection throughout with extensive perforations due to corrosion.
Enumerated Domain Value 3
Enumerated Domain Value Definition Any condition described in Code 4 but which is excessive in scope. Severe movement or differential settlement of the segments, or loss of fill. Holes may exist in walls or slabs.Integral wingwalls nearly severed from culvert. Severe scour or erosion at curtain walls, wingwalls or pipes. Metal culverts have extreme distortion and deflection in one section, extensive corrosion, or deep pitting with scattered perforations.
Enumerated Domain Value 4
Enumerated Domain Value Definition Large spalls, heavy scaling, wide cracks, considerable efflorescence, or opened construction joint permitting loss of backfill. Considerable settlement or misalignment. Considerable scouring or erosion at curtain walls, wingwalls or pipes. Metal culverts have significant distortion and deflection throughout,extensive corrosion or deep pitting.
Enumerated Domain Value 5
Enumerated Domain Value Definition Moderate to major deterioration or disintegration, extensive cracking and leaching, or spalls on concrete or masonry walls and slabs. Minor settlement or misalignment. Noticeable scouring or erosion at curtain walls, wingwalls, or pipes. Metal culverts have significant distortion and deflection in one section,significant corrosion or deep pitting.
Enumerated Domain Value 6
Enumerated Domain Value Definition Deterioration or initial disintegration, minor chloride contamination, cracking with some leaching, or spalls on concrete or masonry walls and slabs. Local minor scouring at curtain walls, wingwalls, or pipes. Metal culverts have a smooth curvature, non-symmetrical shape, significant corrosion or moderate pitting.
Enumerated Domain Value 7
Enumerated Domain Value Definition Shrinkage cracks, light scaling, and insignificant spalling which does not expose reinforcing steel. Insignificant damage caused by drift with no misalignment and not requiring corrective action. Some minor scouring has occurred near curtain walls,wingwalls, or pipes. Metal culverts have a smooth symmetrical curvature with superficial corrosion and no pitting.
Enumerated Domain Value 8
Enumerated Domain Value Definition No noticeable or noteworthy deficiencies which affect the condition of the culvert. Insignificant scrape marks caused by drift.
Enumerated Domain Value 9
Enumerated Domain Value Definition No deficiencies.
Enumerated Domain Value N
Enumerated Domain Value Definition Not applicable
Beginning Date of Attribute Values 
Attribute Label MDOT_REGIO
Attribute Definition Maine Department of Transportation Maintenance Region
Enumerated Domain Value Eastern
Enumerated Domain Value Definition Eastern Region (Region 4)
Enumerated Domain Value Mid-Coast
Enumerated Domain Value Definition Mid Coast Region (Region 2)
Enumerated Domain Value Northern
Enumerated Domain Value Definition Norther Region (Region 5)
Enumerated Domain Value Southern
Enumerated Domain Value Definition Southern Region (Region 1)
Enumerated Domain Value Western
Enumerated Domain Value Definition Western Region (Region 3)
Beginning Date of Attribute Values 
Attribute Label FEATONSTRU
Attribute Definition The features on the structure
Beginning Date of Attribute Values 
Attribute Label FEATUNSTRU
Attribute Definition The name or names of the feature under the structure
Beginning Date of Attribute Values 
Attribute Label YR_BUILT
Attribute Definition The estimated year in which the bridge was built
Beginning Date of Attribute Values 
Attribute Label OWNER
Attribute Definition Identifies the owner of the structure as designated by DOT
Enumerated Domain Value 1 State DOT
Enumerated Domain Value 2 Other state agency
Enumerated Domain Value 4 Municipal
Enumerated Domain Value 5 Federal
Enumerated Domain Value 6 Railroad
Enumerated Domain Value 7 Private
Enumerated Domain Value 8 ME TPK
Enumerated Domain Value 9 Other
Enumerated Domain Value I Indian Affairs
Beginning Date of Attribute Values 
Attribute Label MAINTAINER
Attribute Definition Custodian as designated by DOT
Enumerated Domain Value 1 State DOT
Enumerated Domain Value 2 Other state agency
Enumerated Domain Value 4 Municipal
Enumerated Domain Value 5 Federal
Enumerated Domain Value 6 Railroad
Enumerated Domain Value 7 Private
Enumerated Domain Value 8 ME TPK
Enumerated Domain Value 9 Other
Enumerated Domain Value I Indian Affairs
Enumerated Domain Value N Not applicable
Beginning Date of Attribute Values 
Attribute Label DCK_CNDTN
Attribute Definition The condition rating of the deck
Enumerated Domain Value 0
Enumerated Domain Value Definition Failed condition - out of service - beyond corrective action
Enumerated Domain Value 1
Enumerated Domain Value Definition "Imminent" Failure Condition - major deterioration or section loss present in critical structural components or obvious vertical or horizontal movement affecting structure stability. Bridge is closed to traffic but corrective action may put back in light service.
Enumerated Domain Value 2
Enumerated Domain Value Definition Critical Condition - advanced deterioration of primary structural elements. Fatigue cracks in steel or shear cracks in concrete may be present or scour may have removed substructure support. Unless closely monitored, it may be necessary to close the bridge until corrective action is taken.
Enumerated Domain Value 3
Enumerated Domain Value Definition Serious Condition - loss of section, deterioration, spalling or scour have seriously affected primary structural components. Local failures are possible. Fatigue cracks in steel or shear cracks in concrete may be present.
Enumerated Domain Value 4
Enumerated Domain Value Definition Poor Condition - advanced section loss, deterioration, spalling, or scour
Enumerated Domain Value 5
Enumerated Domain Value Definition Fair Condition - all primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Enumerated Domain Value 6
Enumerated Domain Value Definition Satisfactory Condition - structural elements show some minor deterioration
Enumerated Domain Value 7
Enumerated Domain Value Definition Good Condition - some minor problems.
Enumerated Domain Value 8
Enumerated Domain Value Definition Very Good Condition - no problems noted
Enumerated Domain Value 9
Enumerated Domain Value Definition Excellent Condition
Enumerated Domain Value N
Enumerated Domain Value Definition Not applicable
Beginning Date of Attribute Values 
Attribute Label SPRSTR_CND
Attribute Definition The condition of the superstructure
Enumerated Domain Value 0
Enumerated Domain Value Definition Failed condition - out of service - beyond corrective action
Enumerated Domain Value 1
Enumerated Domain Value Definition "Imminent" Failure Condition - major deterioration or section loss present in critical structural components or obvious vertical or horizontal movement affecting structure stability. Bridge is closed to traffic but corrective action may put back in light service.
Enumerated Domain Value 2
Enumerated Domain Value Definition Critical Condition - advanced deterioration of primary structural elements. Fatigue cracks in steel or shear cracks in concrete may be present or scour may have removed substructure support. Unless closely monitored, it may be necessary to close the bridge until corrective action is taken.
Enumerated Domain Value 3
Enumerated Domain Value Definition Serious Condition - loss of section, deterioration, spalling or scour have seriously affected primary structural components. Local failures are possible. Fatigue cracks in steel or shear cracks in concrete may be present.
Enumerated Domain Value 4
Enumerated Domain Value Definition Poor Condition - advanced section loss, deterioration, spalling, or scour
Enumerated Domain Value 5
Enumerated Domain Value Definition Fair Condition - all primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Enumerated Domain Value 6
Enumerated Domain Value Definition Satisfactory Condition - structural elements show some minor deterioration
Enumerated Domain Value 7
Enumerated Domain Value Definition Good Condition - some minor problems.
Enumerated Domain Value 8
Enumerated Domain Value Definition Very Good Condition - no problems noted
Enumerated Domain Value 9
Enumerated Domain Value Definition Excellent Condition
Enumerated Domain Value N
Enumerated Domain Value Definition Not applicable
Beginning Date of Attribute Values 
Attribute Label SUBSTR_CND
Attribute Definition The condition of the substructure
Enumerated Domain Value 0
Enumerated Domain Value Definition Failed condition - out of service - beyond corrective action
Enumerated Domain Value 1
Enumerated Domain Value Definition "Imminent" Failure Condition - major deterioration or section loss present in critical structural components or obvious vertical or horizontal movement affecting structure stability. Bridge is closed to traffic but corrective action may put back in light service.
Enumerated Domain Value 2
Enumerated Domain Value Definition Critical Condition - advanced deterioration of primary structural elements. Fatigue cracks in steel or shear cracks in concrete may be present or scour may have removed substructure support. Unless closely monitored, it may be necessary to close the bridge until corrective action is taken.
Enumerated Domain Value 3
Enumerated Domain Value Definition Serious Condition - loss of section, deterioration, spalling or scour have seriously affected primary structural components. Local failures are possible. Fatigue cracks in steel or shear cracks in concrete may be present.
Enumerated Domain Value 4
Enumerated Domain Value Definition Poor Condition - advanced section loss, deterioration, spalling, or scour
Enumerated Domain Value 5
Enumerated Domain Value Definition Fair Condition - all primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Enumerated Domain Value 6
Enumerated Domain Value Definition Satisfactory Condition - structural elements show some minor deterioration
Enumerated Domain Value 7
Enumerated Domain Value Definition Good Condition - some minor problems.
Enumerated Domain Value 8
Enumerated Domain Value Definition Very Good Condition - no problems noted
Enumerated Domain Value 9
Enumerated Domain Value Definition Excellent Condition
Enumerated Domain Value N
Enumerated Domain Value Definition Not applicable
Beginning Date of Attribute Values 
Attribute Label LAST_INSPD
Attribute Definition Last Inspection Date
Beginning Date of Attribute Values 
Attribute Label D_POST_STA
Attribute Definition Bridge Posting Status
Enumerated Domain Value 1 Open
Enumerated Domain Value 2 Closed
Enumerated Domain Value 3 Posted
Enumerated Domain Value 7 Other - Lane Closure etc. (No Weight Restrictions.
Beginning Date of Attribute Values 
Attribute Label D_POST_TYP
Attribute Definition Bridge Posting Type
Enumerated Domain Value 0 None Needed
Enumerated Domain Value 1 Weight Limit
Enumerated Domain Value 2 One Truck at a time limit
Enumerated Domain Value 3 Underclearance Limit
Enumerated Domain Value 4 Speed Limit for weight purposes (no weight restriction)
Enumerated Domain Value 5 Weight & Underclearance Limit
Enumerated Domain Value 6 One Truck & Underclearance Limit
Enumerated Domain Value 9 Other - lane closure etc.
Beginning Date of Attribute Values 
Attribute Label TYPE_SERVI
Attribute Definition Type of Service On
Enumerated Domain Value Highway
Enumerated Domain Value Highway-pedestrian
Enumerated Domain Value Highway-railroad
Enumerated Domain Value Other
Enumerated Domain Value Overpass structure at an interchange or second level of a multilevel interchange
Enumerated Domain Value Pedestrian-bicycle
Enumerated Domain Value Railroad
Enumerated Domain Value Unknown
Beginning Date of Attribute Values 
Attribute Label TYPE_SER_1
Attribute Definition Type of Service Under
Enumerated Domain Value Highway, with or without pedestrian
Enumerated Domain Value Highway-railroad
Enumerated Domain Value Highway-waterway
Enumerated Domain Value Highway-waterway-railroad
Enumerated Domain Value Other
Enumerated Domain Value Pedestrian-Bicycle
Enumerated Domain Value Railroad
Enumerated Domain Value Railroad-waterway
Enumerated Domain Value Unknown
Enumerated Domain Value Waterway
Beginning Date of Attribute Values 
Attribute Label SEGMENT_ID
Beginning Date of Attribute Values 
Attribute Label ANGLE
Attribute Definition Angle (Could be used for Cartographic Purposes)
Beginning Date of Attribute Values 
Resource Description Downloadable Data
Transfer Size 32.554
Metadata Reference Information
Metadata Date 20101001
Metadata Contact
Contact Organization Maine Department of Transportation
Contact Person Nate Kane
Contact Position GIS Coordinator
Address Type mailing address
Address SHS 16
City Augusta
State or Province Maine
Postal Code 04333
Country United States
Contact Voice Telephone (207) 624-3297
Metadata Standard Name FGDC Content Standards for Digital Geospatial Metadata
Metadata Standard Version FGDC-STD-001-1998
Metadata Time Convention local time
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