National Highway Freight Network Map and Tables for Idaho

This map shows the Primary Highway Freight System (PHFS) routes as well as all the Interstate Highways within the state that are not part of the PHFS.

High-Resolution Images

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Table of National Highway Freight Network Routes

PRIMARY HIGHWAY FREIGHT SYSTEM (PHFS) ROUTES
State	Route No/ Facility Name	Start Point	End Point	Route/Facility Description	Length (Miles)
ID	I15	I86	ID/MT Line	I15 from I86 to ID/MT Line	124.24
ID	I84	OR/ID Line	ID/UT Line	I84 from OR/ID Line to ID/UT Line	275.59
ID	I86	I84	I15	I86 from I84 to I15	63.23
ID	I90	WA/ID Line	ID/MT Line	I90 from WA/ID Line to ID/MT Line	73.74
PHFS Total					536.81

INTERSTATE NOT ON THE PHFS
State	Route No/ Facility Name	Start Point	End Point	Route/Facility Description	Length (Miles)
ID	I15	UT/ID Line	I86	I15 from UT/ID Line to I86	71.57
ID	I184	I84	U20	I184 from I84 to U20	3.57
INTERSTATE NON-PHFS Total					75.14

Note: PHFS and the Non-PHFS Interstate mileage is based on the U.S. Department of Transportation, Federal Highway Administration, All Roads Network of Linear Referenced Data (ARNOLD) - 2019 geospatial database. Non-PHFS Interstate mileage can fluctuate based on changes made to the Interstate System. The mileage for Non-PHFS Interstate is based on the Interstate Mileage reported in the National Highway System (NHS) as of October 17, 2019. The mileage for CRFCs and CUFCs is based on the State reported data as of January 27, 2023

Sources

U.S. Department of Transportation, Federal Highway Administration, All Roads Network of Linear Referenced Data (ARNOLD) 2019.