A landowner proposing to install private access across a road ditch is required to obtain approval of a culvert plan in support of a crossing permit application.
The process involves the following steps:
- Obtain approval of the proposed private access from the Development Review Services of Transportation Planning.
- Obtain approval of a complete Culvert Plan from the Growth and Land Development Subsection of Drainage Planning.
- Apply for a Crossing Permit with the Development Permits Subsection of Development Compliance.
To satisfy Step 2, the applicant must submit a complete Culvert Plan showing the following:
- Applicant's name, phone/fax nos., mailing and/or email addresses.
- Subject property's legal description, address, lot plan and north arrow.
- Street/Avenue and road ditch information.
- Size of existing culvert upstream of the proposed culvert.
- Proposed culvert information:
- Size: 400 mm or larger as required hydraulically and confirmed by the applicant/consultant who is responsible for sizing the culvert
- Length: Include the bevel ends with a maximum 3H:1V side slope
- Material: Galvanized CMP or concrete
- Ends Treatment: According to Detail No. 7062, Design & Construction Standards, Volume 3. Rock riprap with filter fabric underneath may be considered
- Location: Bottom of the ditch with 2 perpendicular ties from property lines
- Groundcover: Preferably 600 mm subject to the applicant/consultant’s confirmation of adequacy for the culvert to withstand anticipated traffic loads at the private access