Described in the following pages are culvert renewal CAD and Drafting standards. Guidance consists of, basic instructions for the set up and development of culvert renewal plans, and includes a drawing check list, plus a link to example drawings. Commonly used elements are easily accessed in the MicroStation workspace and described in this guidance.
- Tasks and Workflows
- ODOT’s MicroStation workspace contains a “Culvert” workflow and tasks. The tasks link to the standard symbols, tables, patterns, etc., specific to the development of culvert renewal plans. The culvert tasks are a work in progress and will be added to and revised over time. Please see the example drawings for how CAD elements are used on culvert renewal plan sheets.
- Cell Library
- The Hydro.cel library contains the cell drawings used in the development of culvert renewal plan sheets. These cells range from plan view symbols, to standard notes and tables. Included are individual boulders, trees, etc., that can be used to create project specific details for culvert renewal plans that include Waterway Enhancements and Aquatic Passage design. These cell drawings are accessed by the “Culvert” workflow tasks.
- Levels
Use Hydro levels as appropriate (i.e. P_HY_DESIGN_......) for line work and text on all culvert repair plan sheets.
Retain the level structure of referenced drawings.
- File Name
ODOT uses a set list of CAD file names, based on an approved file naming convention developed for use within ODOT’s data management system ProjectWise.
The approved file naming for culvert plans is located in the ProjectWise File Naming Tool.
- Sheet Name (Title)
Sheet titles for each discipline are located in the seed_titleblock.dgn file. Access seed files, when creating a new drawing file, by browsing to the seed file location and choosing the correct seed for your project plans. The title block seed file contains a separate model for each sheet series, organized by discipline. Sheet names are controlled by managing levels within each model. A reference for the level and respective sheet title, located right of the Title Block, will provide guidance on what level(s) to turn on/off for the correct sheet name. The sheet title for culvert plans is located in the “H_Sheets” model.
Refer to Chapter 3 of the CPM for detailed guidance on the title block seed file, its use, and a list of correct sheet names.
- Drawing Sequence
Culvert plans are located in the “H” series section of ODOT’s Contract Plans. The “H” series is reserved for the hydraulic disciplines. Culvert plan sheets follow Stormwater plans and precede Aquatic Passage plans within the “H” series.
See Chapter 2 of the CPM for drawing order and sheet numbering for culvert plans.
- Sheet Numbering
Culvert plan sheets generally begin with a plan and a profile / elevation of the culvert on the same sheet. This first sheet of a single culvert project is numbered “HB01”, the second sheet is numbered “HB02”, and so on. Subsequent sheets may contain details / cross sections, plus tables and notes, etc.
Sheet numbering options for projects with multiple culverts are described in chapter 2 of the CPM.
- Title Sheet
- The first sheet of a Contract Plans set is a title sheet. This includes discipline specific stand-alone plan sets, such as MCM Culvert renewal and other maintenance projects. Title sheets are assigned sheet number “A01”, regardless of discipline. For title sheet development guidance see the RCM.
- Plan and Profile / Elevation Sheet Layouts
Arrange culvert renewal sheets to clearly show the culvert design. Provide a plan sheet that includes existing features, contours, culvert alignment and stationing, etc. (See drafting check list provided in this document). Include on this first plan sheet the general notes for the project, construction and other notes, hydraulic data table(s) and any other information directed by the EOR.
Note: A culvert that has a total span (width) of greater than 20 ft. is considered a bridge for purposes of the National Bridge Inspection Standards. For culverts of this size use the Bridge CAD Manual for plan sheet development and CAD standards.
A profile view of the culvert may be placed below the plan view on the plan sheet, or may be placed on the following sheet depending on the project. When placed on the plan sheet, the profile must be placed directly below the plan view. Key points always align with each other and project up or down from one view to the other view. See the CPM for orthographic drawing guidance. See the RCM for plan and profile sheet layout.
A profile placed on the next sheet also follows the format described in the chapter 2 of the RCM. This sheet contains any notes specific to the view and the features of the culvert that are shown. Always include stationing across the bottom, plus incremental elevation ticks along the left side on all profiles. Subsequent sheets contain details specific to the culvert design. This may include elevations, sections, and details of the culvert pipe, aquatic passage features (such as baffles or weirs), plus details of waterway enhancements, when included on the plan view. Include any relevant notes.
- Aquatic Passage
- Aquatic Passage (previously known as Fish Passage) may be shown on a separate sheet. Aquatic passage measures, in and around the culvert, include features that enhance the passage of fish, such as weirs, baffles, fish rocks and roughened channels.
- Waterway Enhancements
When applicable, a separate plan sheet may be used to detail waterway enhancements, upstream and downstream. Waterway enhancement measures, which serve to enhance the passage of fish, consist of similar features to aquatic passage measures. Included are rootwads, log clusters, vegetated stream banks and step pools.
Standard details are provided to aid in the development of Aquatic Passage and Waterway Enhancement plans. Refer to Det5100-5199-Bank Protection, Det5200-5299-Culverts and Det5500-5599-Waterway Enhancements.
Note: When creating separate plans for Aquatic Passage and Waterway Enhancements, refer to the CPM for sheet names, sheet numbering and drawing sequence.
- Temporary Water Management
Temporary Water Management (TWM) plans detail water management measures during construction. These measures detail how water will be diverted to bypass the culvert and ensure adequate downstream aquatic passage.
TWM plans have a standard sheet title and sheet number in the H series. ODOT’s MicroStation workspace includes a seed_TWM.dgn for developing this plan. TWM example drawings for full and partial isolation plans are in pdf format on the website. See Technical Bulletin GE14-01(B) for further guidance on drafting a TWM plan.
- Culvert ID Markers
Clearly show the location of all culvert facility ID markers on the plan view. Specify the exact information that must be included on the field marker in the construction notes, and include a reference to ODOT’s standard drawing RD398 Culvert ID Marker.
Include the Culvert ID Marker Table to provide the facility ID number, type and location of each marker for the culvert. Include a structure number if applicable. This table is included in the cell library and accessed in the workspace tasks.
See the GHE CAD Manual and the Hydraulics Design Manual for more information on Facility Identification Field Marker requirements.
- Standard Details
The standard details to accompany culvert renewal plans are located in the Hydro 5000’s series. ODOT’s standard details are supported by engineering analysis, calculation, and/or justification. Standard details can be used as-is in a set of plans, or they can be modified on a project-by-project basis and placed on detail sheets signed by the EOR.
See ODOT’s engineering website for more detailed information regarding the use of standard details and standard drawings.
- Check List
The drafting check list contains all items to be included on Culvert plan sheets. (Depending on the project, some items may not apply).
- ☐ Border, title block, sheet title, sheet number
- ☐ Title block information complete
- ☐ Professional of record stamp
- ☐ “V” number or project status stamp
- ☐ Index sheet (if needed)
- ☐ Plan view
- ☐ Profile view
- ☐ North arrow
- ☐ Scales noted
- ☐ Existing roadway
- ☐ Existing structures (e.g. bridge, culvert, wall, sign bridge, etc.)
- ☐ Existing utilities
- ☐ Existing contours
- ☐ Contours labeled
- ☐ Proposed roadway with alignment and stationing
- ☐ Proposed structures
- ☐ Proposed utilities
- ☐ Proposed contours
- ☐ All culverts labeled with assigned structure numbers
- ☐ All culverts labeled with assigned DFI numbers
- ☐ Waterway(s) labeled and flow direction shown
- ☐ Right-of-way lines
- ☐ Temporary construction easements
- ☐ Construction limits
- ☐ Detail(s)
- ☐ Legend, notes and field marker table
- ☐ Marker type
- ☐ Marker location
- ☐ Marker symbol
- ☐ Marker callout
- ☐ Marker label information
- Example Drawing(s)
- Example drawings provided on the website demonstrate typical sheet layouts for proposed culvert repair plans. Refer to the workspace for the most recent CAD standards elements available.