Interstate 82

Interstate 82
Interstate 82 highlighted in red
Route information
Maintained by WSDOT and ODOT
Length:	143.58 mi[2][3][4] (231.07 km)
Existed:	1956[1] – present
Major junctions
West end:	I-90 / US 97 in Ellensburg, WA
	US 12 in Yakima, WA US 97 near Yakima, WA I-182 / US 12 near Richland, WA US 395 near Kennewick, WA US 395 / US 730 in Umatilla, OR
East end:	I-84 / US 30 in Umatilla County, OR
Highway system
Main route of the Interstate Highway System Main • Auxiliary • Business ← OR 78 OR OR 82 → ← SR 41 WA I-90 →

Interstate 82 (I-82) is a 143.58-mile (231.07 km) Interstate Highway that extends from I-90 in Ellensburg, Washington to I-84 near Umatilla, Oregon in the United States. In the state of Washington, it serves the cities of Ellensburg, Yakima, and the Tri Cities (via I-182), and in Oregon, it serves Umatilla and Hermiston. It is the major route westwards to Seattle and eastwards to Boise and Salt Lake City (via I-84 and I-15).^[5][6][7][8] I-82's designation is a violation of the Interstate system's numbering rules, as it is located north of I-84, and is also primarily a north-south route. I-84 was originally designated I-80N, but received its current number in 1980 as part of efforts to eliminate suffixed routes.^[9][10]

I-82 passes over Selah Creek on the Fred G. Redmon Bridge. When this bridge was opened on November 2, 1971 it was the longest concrete arch bridge in North America.^[11][12] The bridge spans 549 feet (167 m) long across the creek.^[11][12] In 1999, a plan surfaced to extend the Interstate down south through Oregon. Three routes were proposed but all were rejected.^[13][14]

Contents 1 Route description 2 History 3 Exit list 4 Auxiliary routes 5 References 6 External links

Route description

Lengths

	mi	km
WA	132.57[3]	213.35
OR	11.01[4]	17.72
Total	143.58[2]	231.07

I-82 starts at an interchange with I-90 and U.S. Route 97 (US 97) in Ellensburg.^[15] At this point, I-82/US 97 start heading southeast towards Yakima. Before entering Yakima, I-82/US 97 intersects State Route 821 (SR 821) and State Route 823 (SR 823) while passing the Yakima Firing Center.

Just north of Selah, the freeway passes over Selah Creek on the Fred G. Redmon Bridge, the longest concrete arch in North America at the time of its opening, spanning 549 feet (167 m) long across the creek.^[11][12] From the bridge, I-82/US 97 passes from Selah into Yakima.^[15] In Yakima, I-82/US 97 join US 12 and intersect SR 24.^[15] After leaving Yakima and Union Gap, US 97 splits from I-82/US 12. I-82 then enters the Yakama Indian Reservation as it starts turning eastward towards the Tri-Cities. West of Toppenish, I-82/US 12 intersects SR 22, and then goes east past Zillah and into Granger, where it intersects SR 223.^{[16][17][18][19]}

After leaving both Granger and the Yakima Indian Reservation, the freeway continues east to Sunnyside, where the highway intersects SR 241. Then, I-82/US 12 turns southeast to pass Grandview and reach Prosser, where SR 22 intersects the freeway.^[15] From Prosser, the highway turns northeast into Benton City, where SR 224 and SR 225 intersect I-82/US 12. From Benton City, the freeway goes eastward towards Richland, when I-182 starts and US 12 joins I-182 into Richland.^[20] From the interchange, I-82 goes southeast around the Tri-Cities and joins US 395.^[21] After joining US 395, the freeway goes south and then west into Plymouth, where the highway intersects SR 14 and leaves Washington on the Umatilla Bridge over the Columbia River heading into Oregon.^{[15][22] [23]}

After coming off the bridge, I-82/US 395 enter Umatilla, where US 395 exits off at the intersection with US 730. After leaving Umatilla, the highway goes southwest and passes the Umatilla Ordnance Depot before ending at I-84/US 30 southwest of Hermiston.^[24][25][26]

History

As part of Washington's first connected state highway system, the Washington State Legislature designated the Inland Empire Highway between Ellensburg and Laurier in 1913.^[27] The State Highway Board selected a route that would connect the main cities of Eastern Washington and the Inland Empire, which were Ellensburg, Yakima, the Tri Cities, Colfax, and Spokane.^[28][29] In 1923, by which time the entire road had been improved,^[30] the highway became State Road 3 (Primary State Highway 3 and Primary State Highway 3 WA after 1937), but retained its name.^[31] By that time, most of the route of Interstate 82 became parts of US 410, US 97, and US 395, all three were established in 1926.^[32][33][34]

In 1956, President Dwight D. Eisenhower signed the Federal-Aid Highway Act of 1956, which started the construction of Interstate Highways.^[35][36] Even though I-82 was designated in 1956, construction did not start until the early 1980s, and the last section of Interstate 82 within Washington opened in 1987.^[37] Legally, the Washington section of I-82 is defined at Washington Revised Code § 47.17.135.^[1] Several projects are currently ongoing and have been completed in the recent years on I-82.^[38]

I-82 was meant to go from Tacoma, across Naches Pass, and then southeast into Yakima and the Tri-Cities. The proposal was quickly denied and later resurfaced as the SR 168 Proposal.^[39]

The original plans for the included two options. One was the current route (which was opposed by the Tri-Cities), and another had I-82 go from Prosser into Richland and Pasco, and then southeast to Wallula and then end at I-80N (present-day I-84) in Pendleton. The first option was chosen, but the Tri-Cities needed access, so the Federal Highway Administration created Interstate 182, which would serve as a connector from I-82 to the Tri-Cities.^{[40][41] [42]}

When I-80N was renumbered I-84 in 1980, I-82's designation became a violation of the Interstate system's numbering rules, as it was now located north of I-84. The reason for the renumbering was a change in guidelines published by the American Association of State Highway and Transportation Officials that advised renumbering suffixed routes.^[9][10] In 1999, a plan surfaced to extend I-82 further south in Oregon. Three major routes were proposed including the Madras Route, from Umatilla through Heppner, Condon, Fossil, and Antelope to Madras, where I-82 would replace US 97 south through Bend to the California border, the Prineville route, from Umatilla through Heppner, Hardman, Spray, Prineville, and Powell Butte to US 97 near Bend, then continue south to the border, and the US 395 route, from Umatilla through John Day, Burns, and Lakeview, presumably to the California border and beyond.^[13][14]

Exit list

County	Location	Mile[3][4]	#	Destinations	Notes
Kittitas		0.00		I-90 / US 97 north – Spokane, Seattle	Westbound exit and eastbound entrance
		3.22	3	SR 821 south (Thrall Road)
		11.62	11	Yakima Training Center
Yakima		26.56	26	SR 821 north (Canyon Road) to SR 823 – Selah
		28.99	29	East Selah Road
		30.59	30	SR 823 north / Rest Haven Road – Selah	Signed as exits 30A (SR 823) and 30B (Rest Haven Road) westbound
	Yakima	31.35	31	US 12 west / North 1st Street – Naches, White Pass	West end of US 12 overlap; signed as exits 31A (US 12) and 31B (1st Street) eastbound
		33.21	33A	Fair Avenue, Lincoln Avenue	Eastbound exit and entrance
		33.21	33B	Yakima Avenue – Terrace Heights	Signed as exit 33 westbound
		34.74	34	SR 24 east / Nob Hill Boulevard – Moxee
	Union Gap	36.26	36	Valley Mall Boulevard – Union Gap
		37.81	37	US 97 south – Goldendale, Bend	East end of US 97 overlap; eastbound exit and westbound entrance
		38.07	38	Union Gap	Westbound exit and eastbound entrance
		40.31	40	Thorp Road, Parker Road
		44.29	44	Wapato
		50.08	50	SR 22 east – Toppenish, Buena
	Zillah	52.05	52	Zillah, Toppenish
		54.05	54	Division Road – Zillah
	Granger	58.47	58	SR 223 south – Granger
	Sunnyside	63.61	63	Sunnyside, Outlook
		66.90	67	Sunnyside, Mabton
		68.91	69	SR 241 Waneta Road  – Sunnyside, Mabton
	Grandview	72.58	73	Stover Road – Grandview
		75.02	75	County Line Road – Grandview
Benton	Prosser	79.90	80	Gap Road – Prosser
		82.31	82	SR 22 to SR 221 – Mabton, Paterson
		88.52	88	Gibbon Road
		93.58	93	Yakitat Road
	Benton City	96.55	96	SR 224 north / SR 225 – West Richland, Benton City
		102.48	102	I-182 east / US 12 east – Richland, Pasco	East end of US 12 overlap
		104.49	104	Dallas Road
		108.91	109	Badger Road
		112.76	113	US 395 north to I-182 – Kennewick, Pasco, Spokane	West end of US 395 overlap
		114.36	114	Locust Grove Road (I-82 to SR 397 Intertie)
		122.70	122	Coffin Road
		131.55	131	SR 14 west – Plymouth, Vancouver
		132.57 0.00		Washington / Oregon state line
Umatilla	Umatilla
		1.00	1	US 395 south / US 730 – Umatilla, Hermiston, Irrigon	East end of US 395 overlap
		4.83	5	Power Line Road
		9.79	10	Westland Road
		11.21		I-84 / US 30 – Portland, Pendleton	Eastbound exit and westbound entrance

Auxiliary routes

• Interstate 182

References

External links

• Highways of Washington State
• ORoads

edit Main Interstate Highways (major interstates highlighted)
4	5	8	10	12	15	16	17	19	20	22	24	25	26	27	29	30
35	37	39	40	43	44	45	49	55	57	59	64	65	66	68	69
70	71	72	73	74	75	76 (W)		76 (E)		77	78	79	80	81	82
83	84 (W)		84 (E)		85	86 (W)		86 (E)		87	88 (W)		88 (E)		89	90
91	93	94	95	96	97	99	H-1		H-2		H-3
Unsigned			A-1		A-2		A-3		A-4		PRI-1		PRI-2		PRI-3
Lists		Primary			Main - Intrastate - Suffixed - Temporary - Future - Gaps
		Auxiliary			Main - Future - Unsigned
		Other			Standards - Business - Bypassed - Tolled

Interstate Highways in Oregon Current 5 105 205 405 82 84 Canceled 305 505

Interstate Highways in Washington Current 5 205 405 705 82 182 90 Proposed 605

State highways in Washington related to I-82 SR 821 - SR 823

Benton County Highways Interstates I-82 I-182 U.S. Highways US 12 US 395 State Highways SR 14 SR 22 SR 24 SR 221 SR 224 SR 225 SR 240 SR 397