Name: Blind Ties
Display Field: BlindTieID
Type: Feature Layer
Geometry Type: esriGeometryPoint
Description: This feature class identifies locations where different underground closed conveyance piping systems come together directly, without a manhole or inlet structure. Although blind ties are generally not good engineering practice there are a significant number of them into or out of the CTDOT MS4 system.As of July 1, 2019, the Connecticut Department of Transportation (Department) is subject to the goals and requirements of a storm water discharge permit that aims to reduce the amount of pollution discharged to the state’s surface waters and wetlands.The "General Permit for the Discharge of Storm Water from Department of Transportation Separate Storm Sewer Systems” (General Permit) was issued by the Connecticut Department of Energy and Environmental Protection (CTDEEP) under the authority of National Pollutant Discharge Elimination System (NPDES) program.Within the NPDES program, the Department of Transportation is considered a non-traditional municipality. As such, the Department’s drainage system is commonly referred to as the DOT MS4, which stands for Department of Transportation Municipal Separate Storm Sewer System.The broad goals of the General Permit affect nearly every aspect of CTDOT’s operations, from design to construction to operations and maintenance. In order to address these goals, the Department has developed a Storm Water Management Plan (SWMP) that identifies best management practices for each goal. A copy of the SWMP will be available here on or before April 1, 2019.Beyond the initial development and implementation of the SWMP, the Department will also produce annual reports to detail progress in implementing each of the best management practices specified in the plan. Links to any annual reports completed to date and to other Department and non-point source pollution topics are included below.This data is digitized at a scale of approximately 1:500 and was digitized from the 2016 and 2019 CT imagery.The coordinate system used is NAD 1983 2011 State Plane Connecticut FIPS 0600 Ft US WKID: 6434 Authority: EPSG.It is edited in the Drainage Network - Office Editors group and is maintained by the Office of Environmental Planning in the Bureau of Planning and the Office of Environmental Compliance in the Bureau of Engineering.The data is updated daily. The metadata is updated as needed..
Copyright Text: Office of Environmental Planning (Planning), Office of Environmental Compliance (Engineering), Enterprise GIS (Planning)
Min. Scale: 442644
Max. Scale: 0
Default Visibility: true
Max Record Count: 2000
Supported query Formats: JSON, geoJSON, PBF
Use Standardized Queries: True
Extent:
XMin: 750057.916920215
YMin: 564407.272083893
XMax: 1259147.61593039
YMax: 937480.580069646
Spatial Reference: 103016 (6434)
Drawing Info:
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HasZ: false
HasM: false
Has Attachments: false
Has Geometry Properties: false
HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText
Object ID Field: OBJECTID
Unique ID Field:
IsSystemMaintained : True
Global ID Field: GlobalID
Type ID Field:
Fields:
- OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
- GlobalID (type: esriFieldTypeGlobalID, alias: Global ID, SQL Type: sqlTypeOther, length: 38, nullable: false, editable: false)
- BlindTieID (type: esriFieldTypeString, alias: Blind Tie ID, SQL Type: sqlTypeOther, length: 15, nullable: true, editable: true)
- MaintenanceDistrict (type: esriFieldTypeString, alias: Maintenance District, SQL Type: sqlTypeOther, length: 1, nullable: false, editable: true, Coded Values: [1: 1], [2: 2], [3: 3], ... 1 more ...)
- MaintenanceGarage (type: esriFieldTypeString, alias: Maintenance Garage, SQL Type: sqlTypeOther, length: 35, nullable: false, editable: true, Coded Values: [N/A: N/A], [Avon: Avon], [Beacon Falls: Beacon Falls], ... 46 more ...)
- Municipality (type: esriFieldTypeString, alias: Municipality, SQL Type: sqlTypeOther, length: 20, nullable: false, editable: true, Coded Values: [Andover: Andover], [Ansonia: Ansonia], [Ashford: Ashford], ... 166 more ...)
- Highway (type: esriFieldTypeString, alias: Highway, SQL Type: sqlTypeOther, length: 4, nullable: false, editable: true, Coded Values: [N/A: N/A], [1: 1], [1A: 1A], ... 444 more ...)
- LRSID (type: esriFieldTypeString, alias: LRS ID, SQL Type: sqlTypeOther, length: 20, nullable: true, editable: true)
- MilePoint (type: esriFieldTypeDouble, alias: Mile Point, SQL Type: sqlTypeOther, nullable: true, editable: true)
- LocalRoadName (type: esriFieldTypeString, alias: Local Road Name, SQL Type: sqlTypeOther, length: 50, nullable: true, editable: true)
- Location (type: esriFieldTypeString, alias: Location, SQL Type: sqlTypeOther, length: 35, nullable: true, editable: true, Coded Values: [Highway: Highway], [Local Road: Local Road], [Administrative Office: Administrative Office], ... 15 more ...)
- CatchmentAreaID (type: esriFieldTypeString, alias: Catchment Area ID, SQL Type: sqlTypeOther, length: 15, nullable: true, editable: true)
- ProjectNumber (type: esriFieldTypeString, alias: Project Number, SQL Type: sqlTypeOther, length: 15, nullable: true, editable: true)
- YearInstalled (type: esriFieldTypeSmallInteger, alias: Year Installed, SQL Type: sqlTypeOther, nullable: true, editable: true, Range: [1800 - 2100])
- DataSource (type: esriFieldTypeString, alias: Data Source, SQL Type: sqlTypeOther, length: 40, nullable: true, editable: true, Coded Values: [State - Construction Plans: State - Construction Plans], [State - Field: State - Field], [State - Design: State - Design], ... 8 more ...)
- OwnedBy (type: esriFieldTypeString, alias: Owned By, SQL Type: sqlTypeOther, length: 35, nullable: true, editable: true, Coded Values: [CTDOT: CTDOT], [Municipality: Municipality], [Private: Private], ... 23 more ...)
- MaintainedBy (type: esriFieldTypeString, alias: Maintained By, SQL Type: sqlTypeOther, length: 35, nullable: true, editable: true, Coded Values: [CTDOT: CTDOT], [Municipality: Municipality], [Private: Private], ... 23 more ...)
- ArchiveStatus (type: esriFieldTypeString, alias: Archive Status, SQL Type: sqlTypeOther, length: 15, nullable: true, editable: true, Coded Values: [Active: Active], [Removed: Removed], [Abandoned: Abandoned])
- ArchiveYear (type: esriFieldTypeSmallInteger, alias: Archive Year, SQL Type: sqlTypeOther, nullable: true, editable: true, Range: [1800 - 2100])
- created_user (type: esriFieldTypeString, alias: created_user, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: false)
- created_date (type: esriFieldTypeDate, alias: created_date, SQL Type: sqlTypeOther, length: 8, nullable: true, editable: false)
- last_edited_user (type: esriFieldTypeString, alias: last_edited_user, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: false)
- last_edited_date (type: esriFieldTypeDate, alias: last_edited_date, SQL Type: sqlTypeOther, length: 8, nullable: true, editable: false)
Templates:
Name: Blind Ties
Description:
Drawing Tool: esriFeatureEditToolPoint
Prototype:
Attributes:
- ArchiveStatus: Active
- MaintainedBy: CTDOT
- MaintenanceDistrict:
- MaintenanceGarage:
- Municipality:
- Highway:
- Location: Highway
- DataSource: State - Construction Plans
- OwnedBy: CTDOT
Is Data Versioned: false
Has Contingent Values: false
Supports Rollback On Failure Parameter: true
Last Edit Date: 2/26/2026 2:07:30 PM
Schema Last Edit Date: 2/26/2026 2:07:30 PM
Data Last Edit Date: 2/14/2026 11:47:26 AM
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