Tom Schweich  

Interstate 84 (I-84) is an Interstate Highway in the Western United States that runs from Portland, Oregon, to a junction with Interstate 80 near Echo, Utah. The highway originally served as a fork of I-80 to serve the Pacific Northwest, and was originally numbered Interstate 80N.

Exit 6: US Interstate 205, southbound.

Exit 9: US Interstate 205, southbound

Exit 18: Crown Point Highway, Historic Columbia River Road

Exit 22: NE Corbett Hill Road, to Historic Columbia River Highway.

Rooster Rock State Park

Interpretive panel at Rooster Rock State Park	Rooster Rock

Lewis and Clark Expedition Rooster Rock Meriwether Lewis and William Clark, the two great American explorers who made secure the claim of the United States for the Oregon country, passed along this stretch of the Columbia River with their Corps of Discovery on their way to the Pacific Ocean on October 31 -- November 2, 1805. They brought their boats through the “Great Shute” (now covered by the waters of Bonneville Dam) and recorded “a remarkable high detached rock stands in a bottom on the stard side ... [it is] 800 feet high and 400 paces around, we call [it] the beaten rock.” A later journal entry called it Beacon Rock. The captains described “great numbers of sea otters” and “a high clift of black rocks” (Cape Horn) on the north shore. Clark wrote “here the river widens to near a mile, and the bottoms are more extensive and thickly timbered, as also the high mountains on each side ... passed a rock near the middle of the river, about 100 feet high and 80 feet diameter [Phoca Rock] ... we encamped under a high projecting rock on the lard [Rooster Rock].” The expedition camped in this area April 6-9, 1806, on their return journey. They noted that Beacon Rock “may be esteemed the head of tidewater.”

Exit 28: E. Bridal Veil Road, to Historic Columbia River Highway.

Offramp eastbound only; Onramp westbound only.

Exit 31: Multnomah Falls Recreation Area.

No connection to Historic Columbia River Highway.

Dodson

Exit 35: Historic Columbia River Highway.

Hood River

Exit 76: Rowena River Road, for Mayer State Park. Also gives access to a small part of U Highway 30 “Historic Columbia River Highway.”

Looking across the Columbia River from Mayer State Park.

Exit 209: US Highway 395, south, or north into downtown Pendleton.

Pendleton

Sunrise in Pendletom.	View of downtown Pendleton from above SE 3rd Street.	View of downtown Pendleton from above SE 3rd Street.	Pendleton Woolen Mills.

Exit 210: Oregon Highway 11, S.E. 3rd Street, into downtown Pendleton

Exit 243: Summit Road, NF-301

The highway crosses a low pass through the Blue Mountains

Oregon above …

Welcome to Idaho.

Boise

Mountain Home

US Highway 20 is concurrent with I-84 west to Caldwell where, with US Hwy 26, it diverges through Oregon.

Exit 95: US Highway 20 north than east across Camas Prairie.

• US Highway 26, northeast and southeast to join I-15 at Blackfoot.
• US Highway 30, south turning east to rejoin I-84 near Burley.

Junction:

• East 2950 South “Hagerman Highway”, west to US Highway 30.
• East 2950 South, Idaho 46 Spur, West Main Street, east to Wendell.

Wendell

Junction:

• Idaho Highway 46, South Idaho Street, into Wendell.

Exit 173: US Highway 93, south to Twin Falls, or north to Shoshone.

Junction: US Highway 30, following a route closer to the Snake River.

Sweetzer Summit

Elevation: 5525 feet.

Snake River drainage above. Great Salt Lake Drainage below.

Exit 263: 38000W, Juniper Road

Juniper Rest Area

Idaho above …

Utah below …

Junction: US Interstate 15, north to Pocatello, Idaho.

US Interstate 84 runs concurrent with US Interstate 15 south to Riverdale.

Tremonton

US Interstate 84 runs concurrent with US Interstate 15 north to Tremonton.

Junction: US Interstate 15, north to Idaho.

Uintah Junction

Exit 87: US Highway 89, at the mouth of Weber Canyon.

Ridge of Wasatch Range seen from out motel window.

Morgan Valley

Mountains ahead on US I-84.

End of western segment.