Interstate 5

Business Loop I-5 begins at Exit 48 in southeastern Castle Rock. The business route follows Huntington Avenue northwest into the city center.

09/02/06

Business Loop I-5 (Huntington Avenue) north at the southbound on-ramp to Interstate 5 and Pleasant Hill Road (a west side frontage road). Huntington Avenue crosses over the BNSF Railroad beyond the intersection.

09/02/06

Looking upwards from Interstate 5 southbound at the eastbound conclusion of SR 432 (Exit 36). SR 432 constitutes an expressway spur west to Longview from Interstate 5. Old Pacific Highway (former U.S. 99) stems southeast from the three-quarter cloverleaf interchange to Carrolls.

09/02/06

Headquarters Road eastbound at the diamond interchange (Exit 46) with I-5. Headquarters Road meanders northeast from Pleasant Hill Road and Interstate 5 to Silver Lake Road, south of SR 504.

09/02/06

Trosper Road westbound at the parclo interchange (Exit 102) with I-5. U.S. 99 utilized Trosper Road between Capitol Boulevard and Interstate 5 south from Exit 102 for a period of time during the 1950s. The freeway north from Trosper Road opened jointly as I-5 and U.S. 99 in 1958.¹

09/02/06

Bow Hill Road eastbound within the diamond interchange at Exit 236.

08/30/06

Bow Hill Road leads west from Old U.S. 99 and Jarman Prairie to meet Interstate 5 at the Upper Skagit Indian Reservation. I-5 heads north to Bellingham and south to Mount Vernon.

08/30/06

Bow Hill Road west at the entrance ramp for Interstate 5 south to Everett and Seattle. Bow Hill Road continues beyond I-5 to Bow and SR 11 (Chuckanut Drive).

08/30/06

Direct ramps link Lakeview Drive with Interstate 5 south. Connections to I-5 north require a turn onto King Street to ramps at Potter Street.

08/30/06

Potter and King Streets intersect opposite the northbound on and off-ramps to Interstate 5 at Exit 253.

08/30/06

Interstate 5 northbound freeway entrance from the Potter Street enrance ramp in Bellingham. The freeway ends in 23 miles at Blaine.

08/30/06

Lakeway Drive, in Bellingham, passes under Interstate 5 (Exit 253) and approaches the southbound on-ramp to Mt. Vernon and Seattle.

08/30/06

Samish Way stems north from Lake Samish Drive between the RIRO ramps with Interstate 5 at Exit 246.

07/19/23

Slater Road (former SR 540) east at the dumbbell interchange (Exit 260) with Interstate 5 on the south side of Ferndale.

07/19/23

Northbound travelers remaining along Interstate 5 beyond Exit 276 enter Peace Arch State Park. The speed limit remains 35 miles per hour, and this small park is located between the two customs stations (one for the United States, the other for Canada). Pedestrians are permitted to walk across the highway to view the Peace Arch (which is visible in the background), and a crosswalk cuts across the northbound lanes between the state park parking area and the arch.

08/30/06

Tongue Point at the end of Semiahmoo Spit appears in view from Peace Arch State Park. Waters of the Strait of Georgia and mountains of Vancouver Island rise beyond the waters of Semiahmoo Bay. A short official use only access road connects the north and southbound roadways of the road between Interstate 5 and B.C. 99.

08/30/06

Stone monuments along each side of the connecting highway between Interstate 5 and British Columbia 99 indicate the border between the United States and Canada. "Treaty of 1925" and "International Boundary" are inscribed into the two granite monuments as well as the names of the two countries. The Peace Arch falls along the International border within the grassy median.

08/30/06

Situated midway between the roadways of Interstate 5 / B.C. 99, the Peace Arch rises dramatically between two trees on the International border. The arch acts as a large doorway, connecting the United States and Canada. The phrase "Children of a Common Mother" refers to the history of both countries once belonging to the British Empire.

08/30/06

Motorists continuing beyond the border monuments enter the Canadian customs station. Beyond the facility is the beginning the B.C. 99 freeway and city of White Rock. Prior to the mid-1960s, the numerical designation between the U.S. and Canadian routes was the same: U.S. 99 and B.C. 99. Despite the renumbering of U.S. 99 as I-5, British Columbia retained 99.

08/30/06

The U.S. Customs Station is located along the road connecting B.C. 99 with Interstate 5 southbound after the international border adjacent to Peace Arch State Park.

08/30/06