MCTD01: Guidelines for Engineering Requirements for Motor Carrier Transportation Division

Professional of Record (POR)

Includes all licensed professionals that, by the conditions of their professional license, can legally produce final work or work products requiring a professional license.

ODOT Standard Drawings: Standard Drawings or Specifications can only be used to fulfill requirements of a Licensed Professional when all of the following criteria are met:

• Document has been engineered and stamped by a licensed professional
• Oregon Department of Transportation retains a valid copy of the document on file
• Drawings or specifications contain adequate information and specifications for a non-engineer to perform the preparation and application of materials used so that engineering skills are not required.

Oregon Temporary Traffic Control Handbook (OTTCH): The Oregon Temporary Traffic Control Handbook can be applied, if applicable, during maintenance activities and District Permitting Operations according to the following:

• The standards in the OTTCH were developed in a cooperative effort with ODOT, the Oregon Traffic Control Devices Committee, and subcommittees from local and state public works and maintenance jurisdictions. The standards were adopted by the Oregon Transportation Commission as the standards for all temporary traffic control in place continuously for three days or less on Oregon public roads per their designated authority in ORS 810.200 and OAR 734-020-0005.
• For work not applicable to the OTTCH or work requiring devices in place longer than three continuous days, a more comprehensive Traffic Control Plan (TCP) is needed and a licensed professional may be required.

MAINTENANCE REPAIR DRAWINGS, PLANS, SPECIFICATIONS, SPECIAL PROVISIONS, OR CALCULATIONS REQUIRE A LICENSED PROFESSIONAL FOR THE FOLLOWING:

Pavement

• New pavement construction, reconstruction, or overlays more than 2” thick, or other non-localized repairs intended to increase structural capacity to existing pavement that has suffered major deterioration.

Geotechnical/Geology

• Retaining Walls: New construction or structural repairs to retaining walls greater than 4 feet high measured from the base of the footing to the top of the wall and any wall with a surcharge load1.
• New construction or structural repairs to sound walls
• New construction or structural repairs to poles, masts, and towers.
• Structure foundations for bridges, viaducts, pumping stations, sound walls, buildings, large culverts, etc
• New construction or non-localized repair when steepening a slope that is greater than 4 feet in height.

Definitions:

1 - A surcharge load is any load in addition to a 1V:4H slope at the top of the wall and within the area defined by the distance “H” from the top of the wall. Examples may include a structure, building, driveway, fill material, etc. (See Minor Wall Diagram)

2 – The footing is measured from the base of the footing to the top of the wall. (See Minor Wall Diagram for H< = 4.0’)

Hydraulics

• Modification of storm water control features
  
• Structural design of culverts, and arches including headwalls, wing walls, vaults, and other man-made items
• Culvert replacement where fish passage is a concern
• Culvert replacement with a diameter or width greater than 4 feet
• Pipe replacement with a trench deeper than 5 feet without either a pre-engineered trench protective system or a back slope of 1V:1 ½ H or flatter unless a sloping design can be applied using tabulated data such as tables and charts pre-approved by an engineer that includes criteria to enable the user to make a selection and know the limits of the data
• Pipe replacement requiring a trench 20 feet deep or greater

Traffic & Roadway Services

Striping/Legends:

• Major reconstruction or major lane modification that changes the intent of the design
• New legend installations except those supplemental additions to improve the existing feature (i.e. supplemental bike lane symbols)

Signs and Sign Supports:

• New permanent sign installation or removal of signs1
• Structural design of new permanent sign supports2

Signals:

• Traffic signal operations design elements report
• Traffic signal plans and installations
• Permanent Traffic Signal Timing Deviations – Deviations from ODOT TSP&G, MUTCD should and shall conditions, and STE/RTE operational approvals
• Wiring diagrams
• New installation of flashing beacons

Illumination:

• New illumination installation, plans, and calculations
• Removal of illumination
• Changing the type of illumination heads
• Structural modification to luminaire poles

Intelligent Transportation Systems (ITS):

• ITS construction plans and calculations
• Structural modifications to ITS features

Roadway:

• New guardrail installation that changes the existing location
• Permanent removal of guardrail
• Travel lane additions or modifications
• Roadway geometry changes

Definitions:

1 – Sign – The rigid substrate (aluminum or plywood) and the legend and symbols affixed to the substrate.

2 – Sign Support – Includes the supporting elements for a sign (i.e. post, foundation, and connections.