Idaho Highway 77 to Idaho Highway 99

 Twin Falls, 1941 FSA / OWI photo
Back to Front Page - Back to Idaho 51 to Idaho 75 - Forward to ID 128 to US 630
--Route-- From Via To Miles History
ID 77 Malta Albion, Declo Jct I-84 31 Since 1955; Orig began Albion; extended to Malta 1963
ID 78 Marsing Murphy, Grand View, Bruneau Hammett 99 Since 1974
ID 79 (Jct US 93) Jct I-84 (Jerome) Jerome (Jct US 93) 3 Since 1955
I-80N Montana state line Caldwell, Nampa, Boise, Mountain Home, Jerome, Twin Falls, Burley Utah state line 276 1960-1981; Replaced by I-84
ID 80 Menan   Lorenzo 6 1955-196x
ID 81 (Utah state line) Malta (Strevell, Bridge, Malta,) Declo Jct US 30 34 Since 1972; Replaced US 30S
Spur ID 81       <1 From IDT milepost records
I-84 Montana state line Caldwell, Nampa, Boise, Mountain Home, Jerome, Twin Falls, Burley Utah state line 276 Since 1980; Replaced I-80N
Bus I-84 Jct I-84 Caldwell, Nampa Jct I-84 11 Since 199x
Bus I-84 Jct I-84 Boise Jct I-84 5 1981-1987; Replaced by I-184 & US 20/26
Bus I-84 Jct I-84 Mountain Home Jct I-84 9  
Bus I-84 Jct I-84 Hammet Jct I-84 3  
Bus I-84 Jct I-84 Glenns Ferry Jct I-84 2  
Bus I-84 Jct I-84 Bliss Jct I-84 4 Not in IDT mileposting
Bus I-84 Jct I-84 Burley, Heyburn Jct I-84 3 Not in IDT mileposting
ID 84 Macks Inn   Big Springs 6 1964-198x
I-86 Jct I-84 American Falls, Pocatello Jct I-15 63 Since 1980; Replaced I-15W
Bus I-86 Jct I-86 American Falls Jct I-86 4  
ID 86 Dayton   Preston 8 1955-1972
ID 87 Jct US 20 Lake Montana state line 9 Since 1968; Replaced ID 287
ID 88 Howe Mud Lake, Terreton Rexburg 61 1959-1978; extended west to Jct US 20/26 in 1962; replaced by ID 33
US 89 Utah state line Paris, Montpelier, Geneva Wyoming state line 45 Since 1939; replaced ID 35 and part of ID 40
I-90 Washington state line Couer d'Alene, Kellogg, Wallace Montana state line 74 Since 1962
Bus. I-90 Jct I-90 Post Falls Jct I-90 1  
Bus. I-90 Jct I-90 Coeur d'Alene Jct I-90 4 Since 1980
Bus. I-90 Jct I-90 Kellogg Jct I-90 2  
Bus. I-90 Jct I-90 Silverton, Osburn Jct I-90 3  
Bus. I-90 Jct I-90 Wallace Jct I-90 1 Since 1991; site of "Last traffic light"
Bus. I-90 Jct I-90 Mullan Jct I-90 1  
US 91 Utah state line Franklin, Preston, Downey, Arimo, McCammon, Inkom, Pocatello, Chubbuck, Blackfoot, (Idaho Falls, Roberts, Hamer, Dubois, Spencer, Humphrey) (Montana state line) Idaho Falls 122 Since 1926; Replaced by I-15 north of Idaho Falls 1980
Bus US 91 Jct US 91 McCammon Jct US 91 1 Since 1973
Bus US 91 Jct US 91 Inkom Jct US 91 1  
Bus US 91 Jct US 91 Pocatello Jct US 91 3 1968-1972
Bus US 91 Jct US 91 Blackfoot Jct US 91 3 1966-1975
Bus US 91 Jct US 91 Idaho Falls Jct US 91 3 1968-197x
US 93 Nevada state line Rogerson, Twin Falls, Shoshone, (Hailey, Stanley, Clayton,) Challis, Salmon Montana state line 350 Since 1926; relaligned from Shoshone to Challis via Arco in 1978
Alt US 93 Shoshone Richfield, Carey, Arco, Mackay, Dickey Challis 168 1941-1978; replaced by US 93
Spur US 93       1 From IDT mileposting
US 95 Oregon state line Homdale, Wilder, Parma, Fruitland, Weiser, Midvale, Cambridge, Council, New Meadows, Riggins, Grangeville, Craigmont, Lewiston, Moscow, Worley, Coeur d'Alene, Sandpoint, Bonners Ferry, Copeland, Addie, Eastport Canadian border 538 Since 1926; extended south to Fruitland 1927; extended to Oregon 1939
Alt US 95 Potlatch Harvard, Emida, Mashburn, St. Maries, Harrison Coeur d'Alene 103 1935-1978; replaced US 95E; replaced by ID 97, ID 3 & ID 6
Bus US 95 Jct US 95 Cottonwood Jct US 95 2  
Bus US 95 Jct US 95 Craigmont Jct US 95 2  
Bus US 95 Jct US 95 Winchester Jct US 95 4 Since 1976
Bus US 95 Jct US 95 Bonners Ferry Jct US 95 1  
Spur US 95 Jct US 95 Payette Jct ID 52 2  
Spur US 95 Oregon state line Weiser Jct US 95 1 Replaced US 30N II in 1980
Spur US 95 Washington state line Near Jct US 195 Jct US 95 <1  
Spur US 95 Jct US 95 Genesee   1  
US 95E Potlatch Harvard, Emida, Mashburn, St. Maries, Harrison Coeur d'Alene 103 1929-1935; 1930 FHWA map shows mainline US 95 as US 95W in this area
ID 97 Jct ID 3 Harrison Jct I-90 36 Since 1978
ID 99 Jct ID 3   Troy 12 Since 1962

Back to Front Page - Back to Idaho 51 to Idaho 75 - Forward to ID 128 to US 630

Page first posted Monday, October 30, 2006
Page last updated Tuesday, October 31, 2006
(c) RV Droz