Low clearance bridges in Multnomah County, Oregon

14 spots where an interstate or US highway in Multnomah County has less than 16 ft of clearance, lowest first. The lowest is 14 ft 6 in on US-30 Spur, West Fremont Interchange. 2 are under 15 ft.

Posted signs and your permit come first. These are the clearances Oregon reported to the federal National Bridge Inventory in 2025. Repaving, snow and new work can lower them.

14 ft 6 in over Fremont on Ramp · US-30 Spur 14 ft 7 in under Belmont Street · I-5 15 ft 3 in under Multnomah Boulevard · I-5 15 ft 3 in under Off Ramp · I-5 15 ft 5 in over Columbia River · I-5 15 ft 5 in over Willamette River · I-5 15 ft 5 in over Marquam Bridge Ramp · I-5 15 ft 5 in under NE 42nd Avenue · US-30 Bypass 15 ft 8 in over Highway 61 NB to Highway 2W WB · US-30 15 ft 9 in over Columbia River · I-5 15 ft 9 in under Highway 001 Conn 2 · I-5 15 ft 10 in under Spring Garden Road · I-5 15 ft 10 in under NE 28th Avenue · I-84 15 ft 10 in under NW Glisan Street · I-405

Clearance	Where	Highway
14 ft 6 in	Over Fremont on Ramp · West Fremont Interchange · Map	US-30 Spur
14 ft 7 in	Under Belmont Street · East End Morrison Br · Map	I-5
15 ft 3 in	Under Multnomah Boulevard · 1.5 mi N of Barbur Boulevard · Map	I-5
15 ft 3 in	Under Off Ramp · East End Morrison Br · Map	I-5
15 ft 5 in	Over Columbia River · At Interstate Bridge · Map	I-5
15 ft 5 in	Over Willamette River · 1.1 mi S of Burnside Br · Map	I-5
15 ft 5 in	Over Marquam Bridge Ramp · 0.8 mi S of Burnside Br · Map	I-5
15 ft 5 in	Under NE 42nd Avenue · NE Portland · Map	US-30 Bypass
15 ft 8 in	Over Highway 61 NB to Highway 2W WB · West Fremont Intchge · Map	US-30
15 ft 9 in	Over Columbia River · At Interstate Bridge · Map	I-5
15 ft 9 in	Under Highway 001 Conn 2 · 2.5 mi N of Burnside Br · Map	I-5
15 ft 10 in	Under Spring Garden Road · 1.3 mi N of Barbur Boulevard · Map	I-5
15 ft 10 in	Under NE 28th Avenue · 1 BL N of Sandy Boulevard · Map	I-84
15 ft 10 in	Under NW Glisan Street · 0.5 mi NW Portland CC · Map	I-405