Interstate 84 in Oregon

The T.H. Banfield Expressway is the portion of Interstate 84 between its western terminus at Interstate 5 and its intersection at Interstate 205 in Portland, Oregon, United States. The expressway, originally built as part of US 30, is named for T.H. Banfield, a former Oregon state highway commissioner.

Planning and construction

Prior to the creation of the Banfield, surface streets were the only routes from Portland to the country. By the 1950s, the system of surface streets were outdated and city planners were looking for more efficient traffic routes. Under President Dwight D. Eisenhower, the federal government had started providing federal assistance to expressway projects. As a result, planners designed a freeway system in Portland to modernize its outdated system of surface streets. The first step to building this new freeway system was to construct the Banfield, which would stretch from Portland to Troutdale. On October 1, 1955, the Banfield Expressway opened to traffic. It was Oregon's first freeway.^[1]

The highway was rebuilt during the 1980s and the MAX Light Rail line was added along the north side at the same time.

Miscellanea

Exit list

County	Location	Mile^[2]	#	Destinations	Notes
Multnomah	Portland	0.00	? Seattle	Westbound exit and eastbound entrance
		0.00	Convention Center, Rose Quarter	Westbound exit; eastbound entrance from OR 99E
		0.00		Westbound exit and eastbound entrance
		0.92	1	Lloyd Center	Westbound exit and eastbound entrance
		2.16	1	33rd Avenue	Eastbound exit and westbound entrance
		2.55	2	39th Avenue, 43rd Avenue
		3.69	3	58th Avenue	No westbound exit
		4.26	4	68th Avenue	Eastbound exit only
		5.01	5		Eastbound exit and westbound entrance
		5.74	6		Eastbound exit and westbound entrance
		5.86	7	Halsey Street ? Gateway District	Eastbound exit only
		5.76- 6.59	8	? Seattle, Portland Airport	Eastbound exit and westbound entrance
		6.74	9	102nd Avenue ? Parkrose	Eastbound exit and westbound entrance
		6.95	9	, Seattle	Westbound exit and eastbound entrance
		Milepoint equation: 7.37 back = 9.70 ahead
		10.08	10	122nd Avenue	Eastbound exit and entrance
	Gresham	13.04	13	181st Avenue ? Gresham
	Fairview	14.41	14	207th Avenue (US 30 Byp. west) ? Fairview
	Wood Village	15.96	16	238th Drive ? Wood Village
	Troutdale	16.90- 17.37	17	Marine Drive ? Troutdale
	17.82	18	Lewis and Clark State Park, Oxbow Regional Park
	22.10	22	Corbett
	24.99	25	Rooster Rock State Park
	28.09	28	Historic Columbia River Highway ? Bridal Veil	Eastbound exit and wesbound entrance
	29.47	29	Dalton Point (Benson State Recreation Area)	Westbound exit and entrance
	30.55	30	Benson State Recreation Area	Eastbound exit and entrance
	31.39	31	Multnomah Falls
	Dodson	35.14	35	Historic Columbia River Highway ? Ainsworth State Park
	37.12	37	Warrendale	Westbound exit and eastbound entrance; serves John B. Yeon State Scenic Corridor
	40.27	40	Bonneville Dam National Historic Landmark	Serves Bonneville State Scenic Corridor
	41.57	41	Eagle Creek National Fish Hatchery, Eagle Creek Recreation Area	Eastbound exit and entrance
Hood River	Cascade Locks	43.64	44	, Stevenson	East end of US 30 overlap; eastbound exit and westbound entrance
	Cascade Locks	45.05	44		West end of US 30 overlap; westbound exit and eastbound entrance
	47.31	47	Forest Lane (Historic Columbia River Highway) ? Herman Creek	Westbound exit and eastbound entrance
	Wyeth	50.99	51	Wyeth	Serves Lang Forest State Scenic Corridor
	54.77	55	Starvation Creek Trailhead, Historic Columbia River Highway State Trail	Eastbound exit and entrance
	56.04	56	Viento State Park
	58.35	58	Mitchell Point Overlook	Eastbound exit and entrance; serves Wygant State Natural Area, Vinzenz Lausmann Memorial State Natural Area, and Seneca Fouts Memorial State Natural Area
	59.96	Service Road	Westbound exit and eastbound entrance; serves Seneca Fouts Memorial State Natural Area
	Ruthton Point	60.79	(Morton Road)	Westbound exit and entrance
	62.06	62		East end of US 30 overlap
	Hood River	63.92	63	Hood River City Center
	Hood River	64.44	64	? White Salmon, Government Camp	West end of US 30 overlap
	65.85	Rest Area (Koberg Beach State Recreation Site)	Westbound exit and entrance
Wasco	Mosier	69.79	69		East end of US 30 overlap
	73.29	Memaloose State Park, Rest Area	Westbound exit and entrance
	76.65	76	Rowena	Serves Mayer State Park
	The Dalles	82.07	82	Columbia Gorge Discovery Center, Wasco County Museum
		83.67	83	West The Dalles (US 30)	Signed as exit 84 westbound
		84.16	84	The Dalles City Center (US 30 east)	Eastbound exit and westbound entrance
		85.51	85	The Dalles City Center, National Historic Districts
		87.01	87		West end of US 30 overlap
	88.83	88	The Dalles Dam
	97.14	97	? Celilo Park, Deschutes River State Recreation Area
Sherman	104.56	104	? Yakima, Bend
	Rufus	109.95	109	Rufus, John Day Dam Visitor Facilities
	Rufus	112.19	112	(John Day Dam)
	114.23	114	LePage Park, John Day River
Gilliam	Quinton	123.31	123	Philippi Canyon
	Blalock	129.43	129	Blalock Canyon
	131.03	131	Woelpern Road	Eastbound exit and westbound entrance
	Arlington	137.82- 138.02	137
	147.35	147
Morrow	151.75	151	Threemile Canyon
	159.30	159	Tower Road
	Boardman	164.16	164	Boardman
	Boardman	165.76	165	Port of Morrow
	167.95	168
	171.13	171	Paterson Ferry Road
Umatilla	177.97	177	Umatilla Army Depot
	179.45	179	, Kennewick
	180.41	180	Westland Road ? Hermiston
	Bucks Corner	182.86	182
	Stanfield	188.84	188		West end of US 395 overlap
	193.53	193	Echo Road (Lexington-Echo Highway) ? Lexington, Echo
	198.54	198	McClintock Road, Lorenzen Road
	199.53	199	Yoakum Road ? Stage Gulch
	202.91	202	Barnhart Road ? Stage Gulch
	Pendleton	207.47	207		East end of US 30 overlap
		209.54	209		East end of US 395 overlap
		210.96	210
		213.06	213	, National Historic District	West end of US 30 overlap; westbound exit and eastbound entrance
		216.05	216	Milton-Freewater, Walla Walla (OR 331)
	224.67	224	Poverty Flat Road, Old Emigrant Hill Road
	228.98	228	Deadman Pass
	233.95- 235.04	234	Meacham, Emigrant Springs State Park
	238.77	238	Kamela, Meacham
	243.82	243	Summit Road ? Mt. Emily
Union	248.54	248	Spring Creek Road ? Kamela
	252.83	252
	Perry	256.40	256	Perry	Eastbound exit and westbound entrance
	Perry	257.26	257	Perry	Westbound exit and eastbound entrance
	La Grande	259.35	259		East end of US 30 overlap; eastbound exit and westbound entrance
	La Grande	261.84	261
	264.92	265		West end of US 30 overlap
	268.26	268	Foothill Road
	270.87	270	Ladd Creek Road	Eastbound exit and westbound entrance
	273.91	273	Frontage Road
	278.64	278	Clover Creek
	283.64	283	Wolf Creek Lane
	North Powder	285.68	285		East end of US 30 overlap
Baker	298.68	298
	Baker City	302.98	302
	Baker City	304.14	304	, Historic District, Geiser Grand Hotel
	306.53	306		West end of US 30 overlap
	313.64	313	Pleasant Valley	Eastbound exit and westbound entrance
	317.47	317	Pleasant Valley	Westbound exit and eastbound entrance
	327.43	327	Durkee
	Nelson Point	330.67	330	Cement Plant Road, Plano Road
	335.76	335	Weatherby
	338.11	338	Lookout Mountain
	340.42	340	Rye Valley
	342.90	342	Lime (Huntington Highway)	Eastbound exit and westbound entrance
	345.83	345		East end of US 30 overlap
Malheur	353.04	353		West end of US 30 overlap
	356.17	356	? Weiser
	362.15	362	Moores Hollow Road
	Ontario	371.45	371	Stanton Boulevard
		374.55	374	, Weiser
		376.72	376A	, Treasure Valley Community College
		376.72	376B	? Payette	East end of US 30 overlap