Current through August 31, 2023
Oversize loads may be transported on Idaho Highways subject to
the following conditions: (3-31-22)
01.
Red-Coded Routes. Daylight
travel until 2 p.m. on Friday or the day before a holiday, no Saturday, no
Sunday. Due to low traffic volumes on these routes early in the mornings of
Saturday and Sunday, single trip permits may be issued for dawn to 8 a.m. If
the movement is not completed by 8 a.m. the permittee will be required to
safely park and not proceed until the next day. (3-31-22)
02.
Black-Coded Routes. Loads
not in excess of ten (10) feet wide, one hundred (100) feet long or fifteen
(15) feet high may travel twenty-four (24) hours per day, seven (7) days per
week; loads in excess of ten (10) feet wide, one hundred (100) feet long, or
fifteen (15) feet high may travel daylight hours seven (7) days per week.
(3-31-22)
03.
Interstate. Loads not in excess of ten (10) feet wide, one hundred and
twenty (120) feet long or fifteen (15) feet high may travel twenty-four (24)
hours per day, seven (7) days per week; loads in excess of ten (10) feet wide,
one hundred and twenty (120) feet long, or fifteen (15) feet high may travel
daylight hours, seven (7) days per week. (3-31-22)
04.
Nez Perce - Clearwater Forest
Safety and Travel Requirements. As per a Federal Court decision, the
United States Forest Service has the duty to regulate oversize loads traveling
through the Nez Perce -Clearwater Forest (US 12 from milepost 74 to 174).
(3-31-22)
a. The Forest Service has issued the
following written criteria to determine which "oversize" loads will be subject
to Forest Service review: (3-31-22)
i. Load
exceeds sixteen (16) feet wide, one hundred and fifty thousand pounds (150,000
lbs.), and/or one hundred and fifty (150) feet in length. (3-31-22)
ii. Load movement requires longer than twelve
(12) hours to travel through the designated mileposts. (3-31-22)
iii. Load movement requires physical
modification of the roadway or adjacent vegetation to facilitate passage beyond
normal highway maintenance. (3-31-22)
b. For those loads meeting any of the
criteria in Paragraph 200.04.a.i. through 200.04.a.iii. of this rule, there
will be additional safety requirements for the movement of such loads on US 12
from milepost 74 to 174. These additional safety requirements include, at a
minimum, the following: (3-31-22)
i.
Ambulances and possible law enforcement escorts to ensure public safety.
(3-31-22)
ii. Safety lighting will
be addressed so as to not create a safety hazard to the traveling public.
(3-31-22)
iii. Loads cannot utilize
turnouts, which are designated for recreational vehicles for non-emergency
parking. (3-31-22)
iv. Time of
travel will be determined based on traffic volume and best interest of the
public. Night time movement may be required and/or movement may be restricted
during holidays or weekends. (3-31-22)
v. Loads require a vehicle safety inspection
by the Idaho State Police or equivalent agency of another jurisdiction prior to
issuance of a permit. (3-31-22)
vi.
ITD shall monitor the loads as they travel the highway and ensure only one (1)
load shall operate on this section of highway at any one time.
(3-31-22)
05.
Additional Restrictions. (3-31-22)
a. Red-Coded Routes - No travel for any load
after 2 p.m. on the day preceding a holiday or holiday weekend. A holiday
weekend occurs as three (3) consecutive days, when a designated holiday occurs
on a Friday or Monday, or when the designated holiday occurs on a Saturday or
Sunday, in which case the preceding Friday or the following Monday shall be
included in such three (3) day holiday weekend. Travel may be resumed at dawn
on the day following the holiday or holiday weekend. (3-31-22)
b. Black-Coded Routes and Interstate Routes -
Loads in excess of ten (10) feet wide, one hundred (100) feet long, or fifteen
(15) feet high may not travel after 4:00 p.m. on the day preceding a holiday.
Travel may be resumed at dawn on the day following the holiday.
(3-31-22)
c. The following days are
designated as holidays: (3-31-22)
i. New
Year's Day; (3-31-22)
ii. Memorial
Day; (3-31-22)
iii. Independence
Day; (3-31-22)
iv. Labor Day;
(3-31-22)
v. Thanksgiving; and
(3-31-22)
vi. Christmas.
(3-31-22)
d. Additional
restrictions relating to movement of buildings and houses are: (3-31-22)
i. Excessively Oversize Loads. Excessively
oversize loads shall be restricted to the time of day, or day of the week, when
traffic interference will be at a minimum. (3-31-22)
ii. Buildings. Time of travel of loads in the
building size category shall be restricted to the time of day and/or day of the
week, when traffic interference will be at a minimum. (3-31-22)
iii. Early Morning Moves. In metropolitan
areas and in certain other cases where a serious disruption of traffic would
otherwise be unavoidable, the movement of excessively oversize buildings may be
permitted, at the discretion of the District Engineer, between 2 a.m. and
daybreak to avoid traffic congestion. (3-31-22)
e. Other time of travel restrictions may be
noted on the permit due to special circumstances. (3-31-22)
f. Overlength restrictions. Oversize vehicles
operating under authority of an special permit which exceed seven (7) feet of
front overhang, on any vehicle in the combination, are restricted to daylight
travel only on two (2) lane, two (2) way highways.
(3-31-22)
06.
Hours of Darkness. Hours are defined as extending from sunset to sunrise
or at any other time when visibility is restricted to less than five hundred
(500) feet. (3-31-22)
07.
Heavy Commuter Traffic Restrictions. (3-31-22)
a. The movement of oversize permitted
vehicles or loads which are in excess of thirteen (13) feet in width may be
prohibited from movement on highways on all state and interstate routes at
times of heavy commuter traffic within one (1) mile of the city limits of the
following cities: (3-31-22)
i. Boise;
(3-31-22)
ii. Caldwell;
(3-31-22)
iii. Coeur d'Alene;
(3-31-22)
iv. Eagle;
(3-31-22)
v. Emmett;
(3-31-22)
vi. Idaho Falls;
(3-31-22)
vii. Meridian;
(3-31-22)
viii. Middleton;
(3-31-22)
ix. Nampa;
(3-31-22)
x. Pocatello;
(3-31-22)
xi. Star;
(3-31-22)
xii. Twin Falls;
(3-31-22)
xiii. Garden City; and
(3-31-22)
xiv. Chubbuck.
(3-31-22)
b. Authorized
oversize permitted vehicles operating during hours of heavy commuter traffic
shall be restricted to the furthest right hand lane. Emergency movement of
vehicles/loads responding to imminent hazards to persons or property shall be
exempt from the provisions of Section
200. Unless otherwise defined on
the permit, the times of heavy commuter traffic shall be considered to be 6:30
a.m. to 8:30 a.m., and 4 p.m. to 6 p.m. Monday through Friday except as noted
under Holiday restrictions. Restrictions to the operation of oversize permitted
vehicles and/or loads during times of heavy commuter traffic shall appear
either on the face of the permit or in the attachments for annual permits.
(3-31-22)
08.
Hazardous Travel Conditions Restrictions. Refer to IDAPA 39.03.03,
"Rules Governing Special Permits - General Conditions and Requirements," for
limitations on travel during hazardous conditions. (3-31-22)
09.
Delaying Movement.
Enforcement personnel responsible for any section of highway shall carry out
enforcement action for violations involving special permit operations and may
delay movements. (3-31-22)
10.
Map Resources. The Pilot/Escort Vehicle and Travel Time
Requirement Map available at the Idaho Transportation Department Special Permit
Office, and Ports of Entry. (3-31-22)
11.
Additional District Approval and
Allowance for Approval Time. District approval will be obtained by the
Special Permit office and may require up to twenty-four (24) working hours.
District approval is required when vehicles or loads exceed: (3-31-22)
a. Sixteen (16) feet wide on red coded
routes; (3-31-22)
b. Eighteen (18)
feet wide on black coded routes and interstate highways; (3-31-22)
c. Sixteen (16) feet high on any route; or
(3-31-22)
d. One hundred twenty
(120) feet long on any route. (3-31-22)
