MP: 29.28 Location: SR 261 and SR 260, Franklin Cty Reassurance shield after the split from SR 260 MP: 15.11 Location: SR 261 and Lyon’s Ferry Rd, Columbia Cty The SR 261 Snake River Bridge. This bridge was actually originally the US-10 bridge over the Columbia River before being replaced by the I-90 bridge. They … Continue reading State Route 261, SR 260 to US-12