The speed limit on Interstate 182 West / US 12 West starts out at 60 mph for all traffic. US 12 runs concurrently with I-182 for its entire length. (Photo taken 9/26/19).

Interstate 182 West reassurance shield along with a US 12 West reassurance marker in Pasco as the I-182 West designation begins. (Photo taken 9/26/19).

Take Exit 14 to WA 397 South toward Finley. The ramp to Exit 14 will split into two separate exit ramps, labeled Exits 14B and 14A. The ramp to WA 397 South will be Exit 14A. (Photo taken 9/26/19).

Interstate 182 West at Exits 14B-A: US 395 North / WA 397 South - Spokane / Finley (Photo taken 9/26/19).

Interstate 182 West at Exit 14B: US 395 North - Spokane (Photo taken 9/26/19).

Interstate 182 West at Exit 14A: WA 397 South - Finley (Photo taken 9/26/19).

Interstate 182 West at Exit 13: North 4th Ave / City Center (Photo taken 9/26/19).

Take Exit 12B to Columbia Basin College and the Tri Cities Airport. (Photo taken 9/26/19).

Interstate 182 West at Exit 12B: North 20th Ave (Photo taken 9/26/19).

Interstate 182 West at Exit 12A: US 395 South - Kennewick / Pendleton (Photo taken 9/26/19).

View on Interstate 182 West at mile marker 12. (Photo taken 9/26/19).

West of mile marker 12, the speed limits on Interstate 182 West increase to 70 mph for automobiles and 60 mph for trucks. These are the standard speed limits on most rural Interstate highways in Washington State. (Photo taken 9/26/19).

Interstate 182 West reassurance shield along with a US 12 West reassurance marker. (Photo taken 9/26/19).

Interstate 182 West at mile marker 11. (Photo taken 9/26/19).

Mileage sign on Interstate 182 West. It's 6 miles to Richland and 81 miles to Yakima. (Photo taken 9/26/19).

Interstate 182 West at Exit 9: Road 68 (Photo taken 9/26/19).

Take Exit 7 to Road 100. (Photo taken 9/26/19).

Interstate 182 East at Exit 7: Broadmoor Blvd (Photo taken 9/26/19).

Take any of the next 3 exits to Richland. (Photo taken 9/26/19).

Another Interstate 182 West reassurance shield. (Photo taken 9/26/19).

Take Exit 5B to Washington State University's Tri Cities Campus. (Photo taken 9/26/19).

View on Interstate 182 West as it crosses the Columbia River on the Interstate 182 Bridge. (Photo taken 9/26/19).

Upon crossing the Columbia River, Interstate 182 West enters Benton County and the Richland city limits. (Photo taken 9/26/19).

Take Exit 5B to Richland City Center. (Photo taken 9/26/19).

Traffic to the Port of Benton and the Hanford Area should use Exit 4. (Photo taken 9/26/19).

Interstate 182 West at Exit 5B: George Washington Way (Photo taken 9/26/19).

Interstate 182 West at Exit 5A: WA 240 East - Kennewick (Photo taken 9/26/19).

The speed limits remain 70 mph for automobiles and 60 mph for trucks on Interstate 182 West. These are the standard speed limits on most rural Interstate highways in Washington State. (Photo taken 9/26/19).

Take Exit 4 to West Richland. (Photo taken 9/26/19).

Interstate 182 West at Exit 4: WA 240 West - Wellsian Way / Vantage (Photo taken 9/26/19).

View on Interstate 182 West as it crosses the Yakima River. (Photo taken 9/26/19).

Take Exit 3A to Keene Rd. Take Exit 3B to Duportail St. (Photo taken 9/26/19).

Interstate 182 West at Exit 3B: Queensgate North (Photo taken 9/26/19).

Interstate 182 West at Exit 3A: Queensgate South (Photo taken 9/26/19).

More speed limit signage west of Exit 3A. The speed limits remain the rural standard 70 mph for automobiles and 60 mph for trucks. (Photo taken 9/26/19).

View on Interstate 182 West at mile marker 2. (Photo taken 9/26/19).

Advance signage for the junction of Interstate 82, which will mark the western terminus of Interstate 182 one mile ahead. (Photo taken 9/26/19).

Interstate 182 West at mile marker 1. (Photo taken 9/26/19).

Follow Interstate 82 East (left lane) to Kennewick and Plymouth. Keep right to follow Interstate 82 West / US 12 West toward Benton City and Ellensburg. (Photo taken 9/26/19).

Interstate 182 West at the junction of Interstate 82. The two westbound lanes of I-182 split into ramps to I-82 West (right lane) and I-82 East (left lane). This interchange marks the western terminus of I-182. (Photo taken 9/26/19).

A closer view of the ramp to Interstate 82 East via the left lane at the western terminus of Interstate 182. (Photo taken 9/26/19).