Idaho Administrative Code › Title IDAPA 39 - Transportation, Department of › Rule 39.03.42 - RULES GOVERNING HIGHWAY RIGHT-OF-WAY ENCROACHMENTS ON STATE RIGHTS-OF-WAY › Section 39.03.42.500 - LOCATION AND DESIGN STANDARDS FOR UTILITIES

Current through August 31, 2023
01.
Approved Permit Required
. An approved right-of-way encroachment
			 permit shall be required for all utility encroachments, including new utility
			 installation and the relocation, maintenance, modification, or removal of
			 existing utility facilities prior to the initiation of any work within the
			 state highway right-of-way. (3-31-22)
02.
Utility Locations
. Final
			 utility locations shall be identified on the appropriate roadway and bridge
			 plans. (3-31-22)
03.
Interstate Highways
. As addressed in the 1996 Telecommunications Act,
			 longitudinal placement of telecommunication utilities in any Interstate
			 right-of-way shall require a permit approved by the Department for the
			 installation of utilities. Longitudinal placement of all other utilities in
			 Interstate right-of-way shall require a utility permit approved by both the
			 Department and the FHWA. (3-31-22)
04.
Utility Maintenance and Emergency
			 Repair
. Right-of-way encroachment permits, approved annually by the
			 Department, shall be required for all maintenance or emergency repairs of
			 utility facilities. The utility shall notify the Department in advance of any
			 work that affects the traveling public. (3-31-22)
05.
Conduits Under the Roadway
.
			 (3-31-22)
a. Conduits crossing under highways
			 that carry utility structures including, but not limited to, water, sewage,
			 chemicals, electrical wire, and communications cables, shall be installed by
			 jacking, driving or boring unless trenching can be justified. Acceptable
			 justification would only be poor soil conditions, such as rock or boulders,
			 inadequate room for a boring pit, or conflicts with other utility lines which
			 cannot be located accurately (gas lines, multiple telephone conduits). If
			 gravel or boulders prevent boring or jacking on the first attempt, at least two
			 (2) other documented attempts should be made at different locations before
			 contacting the District about an alternate installation method, unless the
			 utility can provide documentation from a qualified agency or engineer that
			 indicates the strata is not conducive to boring, driving or jacking. Normally
			 installation of conduit twenty-four (24) inches or less outside diameter should
			 be attempted by jacking, driving or boring before consideration of trenching as
			 an alternative. (3-31-22)
b. The
			 applicant is required to submit for review and approval, a set of construction
			 plans stamped by an engineer licensed in the state of Idaho. The plans shall
			 show all details on casing, conduits, bulkheads and placement, vertical and
			 horizontal dimensions of the pit and shoring, method of installing the conduit,
			 drainage, void filling, and traffic control devices. Sluicing or jetting shall
			 not be allowed. If required by the engineer, casings should be installed from
			 highway right-of-way line to highway right-of-way line to allow for servicing
			 of the utility facility with minimal disruption to traffic flows. Casings
			 should be installed wherever feasible to allow for placement of multiple
			 conduits. (3-31-22)
c. Conduits
			 under interstate highways shall not be installed by cutting through the
			 pavement under any circumstance. (3-31-22)