Interstate 84 in Idaho

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This article is about the section of Interstate 84 in Idaho. For the entire route, see Interstate 84 (Oregon–Utah).

Interstate 84 marker

Interstate 84
Route information
Maintained by ITD
Length: 275.650 mi[1] (443.616 km)
Major junctions
West end: I-84 at Oregon state line
  US 95 near Fruitland
I-184 in Boise
I-86 near Declo
East end: I-84 at Utah state line
Highway system

Interstate 84 (I-84) in the U.S. state of Idaho, also known as The Vietnam Veterans Memorial Highway,[2] heads southeast from the Oregon state line near Fruitland. It connects via I-184 to Boise. Eventually, I-84 connects to Interstate 86, and mainline I-84 heads southeast towards Utah. I-86 continues due east and heads to Pocatello, meeting with I-15. I-84 exits the state to the southeast at the Utah state line near the town of Stone.

Route description[edit]

Eastbound I-84 in Boise in 2016, approaching I-184 interchange

Eastbound from Oregon, Interstate 84 enters Idaho after crossing the Snake River at an approximate elevation of 2,150 feet (660 m) above sea level. The highway proceeds southeast, passing the community of Fruitland, and reaching an interchange (#3) with U.S. Route 95. It continues southward through rural agricultural area, reaching interchanges with U.S. Route 30 (and Old U.S. 30) as well as passing numerous small buildings. The road continues southeast, traveling parallel to Old U.S. Route 30, reaching an interchange with State Highway 44 from Middleton. The roadway proceeds, interchanging with U.S. Route 20/26, which continue concurrently with the highway.

Interstate 84 Business splits off in Caldwell, while I-84 interchanges with 10th Avenue before U.S. 20/26 split off the roadway. The highway continues southeast through Caldwell, then bends east and enters Nampa. I-84 Business returns to the parent route within the city. Adding lanes, the highway continues through Meridian, reaching interchanges with several small roads.

The roadway enters Boise and reaches an interchange with Interstate 184, its auxiliary route which connects to the city center. The highway turns southeast, passing Boise Airport, and interchanges with several roads, before reaching an interchange with U.S. 20/26, which continue concurrently with I-84. Southeast out of Boise, the interstate ascends past the 3,000-foot (910 m) level, enters rural desert area, and interchanges with a few small roads. It bypasses Mountain Home, where Interstate 84 Business (Old U.S. 30) splits off and enters the community. U.S. 20 splits off and heads east towards Fairfield, the way to the Sun Valley ski resort.

I-84 eastbound, nearing
Mountain Home in 2016

South of Mountain Home, I-84 Business reenters the highway, which proceeds eastward, traveling upstream and parallel to the Snake River, before bypassing Glenns Ferry. The highway continues east near the river, interchanging repeatedly with Old U.S. Route 30, bypassing Bliss, where U.S. 26 splits off east to Gooding and Shoshone. The interstate bends southeast, passing through the Malad Gorge and Thousand Springs State Park, Wendell, and bypassing Jerome. It continues to an interchange with U.S. Route 93, which connects south to Twin Falls, before returning to running parallel to the Snake River.

The interstate proceeds east, now over 4,000 feet (1,220 m) in elevation, passing the Hazelton Municipal Airport, and interchanging with several small roads. It passes north of Burley, then reaches an interchange with Interstate 86, which connects to Pocatello. I-84 proceeds southeast, parallel to State Highway 81 for a short distance, then climbs Meadow Creek to an elevated area which crests at 5,530 feet (1,690 m) at Sweetzer Summit. The highway descends southeast through Juniper Valley to the state line, at 4,500 feet (1,370 m), and continues in Utah.[3]

Future[edit]

(As of June 2008) The current pavement starting from the Broadway Interchange in Boise to just before the Cole and Overland Interchange is the original pavement built almost 40 years ago. The Idaho Transportation Department is planning to add a third and fourth lane in that area and repave the bumpy road. In the area between the Meridian Interchange and the Garrity Interchange they are currently creating a third lane due to the heavy traffic in that area. The lanes are now open between Broadway (Exit 54) and the Nampa area (Exit 38). ITD Plans to continue the lanes until about the Caldwell area.

Exit list[edit]

County Location mi[1] km Exit Destinations Notes
Payette 0.000 0.000 I-84 west – Portland, Seattle Continuation into Oregon
2.876 4.628 3 US 95 – Parma, Fruitland, Payette Primary commercial route to north Idaho
9.498 15.286 9 US 30 west – Emmett, New Plymouth West end of US-30 overlap
12.906 20.770 13 Black Canyon Junction
Canyon 17.335 27.898 17 Sand Hollow
24.839 39.974 25 SH 44 – Middleton
25.994 41.833 26 US 20 west / US 26 west – Parma, Notus West end of US-20/US-26 overlap
Caldwell 26.723 43.006 27 I-84 Business Loop east to SH 19 – Caldwell, Wilder, Homedale
27.620 44.450 28 10th Avenue – Caldwell City Center
28.650 46.108 29 US 20 east / US 26 east (Franklin Road) East end of US-20/US-26 overlap
Nampa 33.539 53.976 33 SH 55 south / Midland Boulevard – Nampa, Marsing West end of SH-55 overlap; signed as exits 33A (SH-55) and 33B (Midland Boulevard) westbound
34.965 56.271 35 Northside Boulevard
35.985 57.912 36 Franklin Boulevard
37.945 61.067 38 I-84 Business Loop west (Garrity Boulevard) – Nampa, Murphy Exit for the Ford Idaho Center
Ada Meridian 42.000 67.592 42 Ten Mile Road
44.007 70.822 44 SH 69 – Meridian, Kuna
45.998 74.027 46 SH 55 north – McCall, Eagle East end of SH-55 overlap
Boise 49.307 79.352 49 I-184 east / Franklin Road – Boise City Center
50.140 80.693 50 Overland Road, Cole Road Signed as exits 50A (West Overland Road) and 50B (Cole Road/Overland Road) eastbound, and 50A (Cole Road/Overland Road) and 50B (East Overland Road) westbound
51.997 83.681 52 Orchard Street
53.483 86.073 53 Vista Avenue – Boise Airport
54.485 87.685 54 US 20 west / US 26 west (Broadway Avenue) – Boise City Center West end of US-20/US-26 overlap
56.932 91.623 57 SH 21 (Gowen Road) – Idaho City Exit for South Federal Way
59.510 95.772 59 South Eisenman Road Interchange Signed as exits 59A (South Eisenman IC) and 59B (Memory Road) eastbound
63.517 102.221 64 Blacks Creek Road – Kuna
70.772 113.896 71 Orchard, Mayfield
Elmore 74.333 119.627 74 Simco Road
90.280 145.292 90 I-84 Business Loop east to SH 51 / SH 67 – Mountain Home, Bruneau
Mountain Home 95.193 153.198 95 US 20 east – Fairfield, Mountain Home, Sun Valley East end of US-20 overlap
99.570 160.242 99 I-84 Business Loop west (Bennett Road, Old Oregon Trail Road) to SH 51 / SH 67 – Mountain Home
111.800 179.925 112 I-84 Business Loop east to SH 78 – Hammett
113.856 183.233 114 I-84 Business Loop west to SH 78 / Cold Springs Road – Hammett Westbound exit and eastbound entrance
120.149 193.361 120 I-84 Business Loop east – Glenns Ferry Eastbound exit and westbound entrance
121.094 194.882 121 I-84 Business Loop west – King Hill, Glenns Ferry
125.159 201.424 125 Paradise Valley
128.993 207.594 129 King Hill
Gooding 137.060 220.577 137 I-84 Business Loop east / US 30 east / Pioneer Road – Buhl, Bliss East end of US-30 overlap
140.405 225.960 141 I-84 Business Loop west / US 26 east to US 30 – Gooding, Hagerman, Bliss East end of US-26 overlap
146.870 236.364 147 Tuttle
155.260 249.867 155 To SH 46 – Wendell, Hagerman
156.581 251.993 157 SH 46 – Gooding, Wendell
Jerome 165.160 265.799 165 SH 25 – Jerome
168.010 270.386 168 SH 79 – Jerome
173.013 278.437 173 US 93 – Wells, Sun Valley, Twin Falls, Las Vegas Main exit into Twin Falls via the Perrine Bridge
181.930 292.788 182 SH 50 – Kimberly, Eden, Twin Falls
188.301 303.041 188 Valley Road – Hazelton, Eden
193.525 311.448 194 SH 25 west (Ridgeway Road) – Hazleton West end of SH-25 overlap
JeromeMinidoka
county line
200.536 322.731 201 SH 25 east / Kasota Road – Paul East end of SH-25 overlap
Minidoka 208.015 334.768 208 I-84 Business Loop east / SH 27 – Paul, Burley
210.591 338.913 211 I-84 Business Loop west / US 30 west / SH 24 – Burley, Heyburn, Rupert West end of US-30 overlap
Cassia 216.395 348.254 216 SH 25 / SH 77 – Albion, Rupert, Declo
221.880 357.081 222 I-86 east / US 30 east to I-15 – Pocatello East end of US-30 overlap; former I-15W east; I-86 west exit 1
227.950 366.850 228 To SH 81 / Yale Road – Malta, Declo
236.655 380.859 237 Idahome Road
244.810 393.984 245 Sublett Road – Malta
253.705 408.299 254 Sweetzer Road
Oneida 262.512 422.472 263 Juniper Road
275.650 443.616 I-84 east – Ogden, Salt Lake City Continuation into Utah
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References[edit]

External links[edit]

Route map: Bing / Google

KML is from Wikidata


Interstate 84
Previous state:
Oregon
Idaho Next state:
Utah