Interstate Bridge project hits a bump (or should we say, a lift)
Doubt is creeping into I-5 expansion plans.
bob ortblad
The overlooked I-5 Columbia River crossing option: An immersed tube tunnel
To Bob Ortblad, a retired civil engineer who lives in Seattle, the team behind the Interstate Bridge Replacement Program (IBRP) – the plan to expand I-5 bridge between Vancouver and Portland across the Columbia River – have it all wrong. While other advocates have proposed alternatives to the highway expansion, like congestion pricing or a … Read more