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Infrastructure Permit Application

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Obtain the Application Form

Download a PDF form - Infrastructure Permit Application

Request a printed copy: call 303-651-8330 or email

Required Information

  • Date of application
  • Name and address of the applicant
  • Name and address of the owner of the infrastructure
  • The location and type of existing public infrastructure (street pavement, curb and gutter sidewalks or utilities) impacted by the construction, excavation or work
  • Location, purpose, size and type of the proposed infrastructure
  • Evidence that all other permits or licenses (including required insurance, deposits, bonding and warranties) required for the proposed work, under the laws of the United States, the State of Colorado, or this code, have been or will be issued before work begins
  • Evidence of membership with the Utility Notification Center of Colorado
  • A satisfactory plan of work showing protection of the subject property and adjacent properties unless the Public Works/ Water Utilities Director determines such protection is unnecessary.
  • The applicant must include one (1) electronic or hard copy of engineering construction drawings or site plans for the proposed infrastructure:
    • For new service lines, include one (1) set of construction drawings or site plans. The plan needs to show all existing utilities and dimensioned clearances from the proposed new private infrastructure.
    • Any deviations to City Standards/ variance requests need to be duly noted at their pertinent location on the plan and profile sheets.
    • For new main line installations, include one (1) set of drawings showing a detailed plan and profile for the proposed new installation.
    • View an example for the required plan and profile. This sample is provided merely for illustrative purposes. The information contained in the submitted set of plans by the applicant will vary according to the specific conditions of the site and the proposed project.

Plan and Profiles

In order to produce a plan and profile, the applicant is responsible to locate all water, sewer, raw water and storm drainage utilities within the limits of the project prior to submitting a Work in City Property/ Infrastructure Permit application. The applicant must follow the ensuing steps, in order of sequence:

  1. Obtain a Utility Map of the project area.  Requests may be made in person, at 385 Kimbark Street, Longmont Co. or by e-mail to
  2. Apply and obtain a Work in the Right of Way Permit (for Potholing)
  3. Pothole and locate the affected utilities.  This process must be made at the applicant’s expense through a private locator. In the event utilities can’t be located by the private locator, the applicant may contact City of Longmont’s Public Works for assistance.

Minimum Utility Clearances

All minimum clearances are from the closest edge of the City’s utilities to the closest edge of the applicant’s infrastructure. Minimum Required clearances are as follows:

  • Maintain 18 inches min. vertical clearance between existing utilities and the proposed project.  Be aware of sanitary sewer and water services located perpendicular or near proposed bores.
  • Maintain 5 foot min. horizontal clearance between existing utilities which include, but are not limited to, fire hydrants, valves, manholes and inlets and proposed bore.
  • Maintain a minimum 8 feet of horizontal distance between the proposed bore/bore pit and transmission lines 18 inches or larger.
  • Maintain a minimum 8 feet of horizontal distance between the proposed bore/bore pit and Sewer Lines 18 inches or larger.

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