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Driving Directions and Maps for LIGO Hanford Observatory
Google's mapmaker can give you directions to LIGO if you enter LIGO Hanford Observatory, 127124 N Route 10, Richland WA as the target address. You won't see Google's road names on any signs near LIGO. Scan the information below to confirm the turns that you'll need to make. If you'd like to check road conditions near the Observatory, use the WSDOT Twin Bridges Camera Image from SR 240.
NOTE: LIGO's street address is "Horn Road," also known as Route 10. "Horn Rapids Road" lies north of Richland but is not the same road! Guests sometimes struggle to find LIGO because they are looking for us on Horn Rapids Road.Choose the direction from which you will come to LIGO. Click the PDF link for printer-friendly directions of your route.
- From Eastern and Northeast Washington (Walla Walla, Pullman, Spokane) and most Idaho locations.
- From Eastern Oregon
- From Central Oregon
- From Western Oregon and Southwestern Washington, including the Vancouver area
- From Central and Western Washington (Yakima, Ellensburg, Wenatchee, Seattle/Tacoma)
- From Mid-Central Washington (Othello, Moses Lake, points north of Moses Lake)
- From the Pasco Airport
- From other Pasco locations
- From Richland and Kennewick
- How will I know when I'm there?
Note: Federal regulations prohibit pets, firearms, alcohol or controlled substances on the LIGO site. Thank you.
Stevens Drive to LIGO from the Tri-Cities
|Once you've passed through the PNNL campus north of Richland on George Washington Way, you'll see the sign for Stevens Drive (left photo). Bear to the left as you round a corner. Don't veer to the right towards the Hanford 300-area buildings. Continue ahead and turn right onto Stevens Drive.|
|Now you will drive 10.2 miles, past Hanford facilities, past the FFTF site and past Energy Northwest facilities. At about 10 miles you will see signs pointing left to Route 10 and SR 240. You will turn left onto Route 10 (you'll actually have to turn left twice, once off of Stevens and once off a tiny arm that connects Stevens to 10). If you miss the turn for Route 10 you will soon be at the Hanford security gate. Tell the officer that you're looking for LIGO and he or she will direct you back to route 10. Once on Route 10, drive 1.6 miles and turn right at the LIGO sign.|
|Drive 10(+) miles on Stevens and you'll see these signs. Take the left turn towards 240 onto Route 10. If you miss this turn you'll soon be at the guard station where you'll need to turn and come back to Route 10.|
240 Bypass/Vantage Highway Route to LIGO from the Tri-Cities
|Turn left off the Bypass towards Vantage (you're on the edge of Richland here). After 8 miles on 240 W you'll see the Benton City sign, then the yellow intersection sign. Turn RIGHT onto Horn Road (Route 10).|
From the Pasco Airport
From other Pasco locations
From Richland and Kennewick
From Eastern and Northeast Washington (Walla Walla, Pullman, Spokane, Cheney) and most Idaho locations.
From Eastern Oregon
From Central Oregon
From Western Oregon and the Southwestern Washington, including the Vancouver area
From Central and Western Washington (Yakima, Ellensburg, Wenatchee, Seattle/Tacoma)
|From I-82 you'll take exit 96 and turn left, going through Benton City on 225 N. 8 miles past Benton City you'll come to the intersection of 225 & 240 (right photo). Carefully cross and drive straight ahead. You'll travel 5 more miles up Route 10 (Horn Road) to LIGO|
From Mid-Central Washington (Othello, Moses Lake, points north of Moses Lake)
|From Mattawa, Moxee or Othello you'll be heading east on 240. Watch for the Benton City sign (left photo). You'll turn LEFT onto Route 10 (Horn Road) when you see the sign pointing right to 225 (right photo).|
From the Yakima area you can also get to LIGO by coming through Moxee on SR 24, which joins SR 240 on the west side of the Hanford site. Follow 240 east to milepost 22 and turn left onto Route 10 at the intersection of 240, SR 225 (right to Benton City) and Route 10. This intersection is on the east side of a rise and you won't see it until you are quite close.
|As you approach LIGO on Route 10, you'll see our buildings on the west side. When you see the LIGO sign, enter the access road and drive about 300 yards to the lot at the first building. Enter the front door.|
Last modified on August 2, 2010
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LIGO is supported by the National Science Foundation. Any opinions, findings, conclusions or recommendations expressed here are those of the author(s) and do not necessarily reflect the views of the National Science Foundation