transportation/structures (MapServer)

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Service Description: This feature layer contains all of Alberta Transportation and Economic Corridors structures. These in service structures are majorly categorized as follows:Bridge Structures (major bridges, culverts, low level crossings, standard bridges, undefined bridges, ferries)Sign Structures Watercourse Training StructuresRetaining Wall StructuresHere are some definitions used in the data attribution.Bridge CulvertA structure that is a conduit located below the roadway surface facilitating passage of streams or other traffic through the roadway. Bridge size culverts have an equivalent diameter of at least 1500 mm. See also Beveled End, Concrete End Treatment, CSP, Culvert Barrel, Piping and SPCSP.Bridge StructureInfrastructure grouping that includes bridges (single-span, continuous beam, single or multiple arch, suspension, frame type), bridge size culverts, watercourse training works and overhead sign structures. See also Major Bridge and Standard Bridge.CulvertA curved or rectangular buried conduit for conveyance of water, vehicles, utilities, or pedestrians. See also Box Culvert and Bridge Culvert.Low Level CrossingBridge crossing at which it is considered acceptable for flood waters to flow over the roadway. Use of roadway is lost for short periods of time during these flood events.Major BridgeA bridge that is not built entirely from standard drawings. See also Standard Bridge.Sign StructureA permanent structure designed and constructed to support a large traffic sign or combination of signs with an area greater than 4m2 which is located over the roadway surface (outside shoulder to outside shoulder). A structure supporting an electronic message board is also a sign structure. A sign structure is classified as a Bridge.Standard BridgeA bridge constructed according to Department standard drawings (plans). These bridges are suited for non-complex site conditions and can be put together very quickly. Timber and short span concrete bridges are examples of standard bridges. See also Major Bridge.WatercourseA natural or artificial channel that conveys water continuously or intermittently through the year. A watercourse can be a river, lake, stream, creek, etc. Watercourses impact highways relative to bridge structure requirements and bridge structures impact watercourses relative to environmental aspects. See also Low Level Crossing and Streambed.More information on bridges and other structures visit https://www.alberta.ca/bridges-structures

Map Name: Structures

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Structures - In service (1)

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Service Item Id: 8006c8b67f684058ad80ea27e50ee702

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Spatial Reference: 102185 (3401) LatestVCSWkid(0)

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