Pacific Northwest In-Water Work Windows

By Ed Brannigan, Marine contractor. Reviewed by Amanda McCallister, editor.

Marine Construction | Boat Lift Installation Last week of September, 2017. I'm on the deck of a 75-foot barge, halfway through a dock renovation on Coos Bay. The tide's dumping out hard, and a D8 just shoved a pile into a buried cable. The owner's email hits my phone: 'We need 200 more feet of float, and can you finish by the 15th?' The 15th is the end of the in-water work window. I didn't catch a fish that year. You live and die by the window down here. For the uninitiated, the in-water work window is the time of year when state and federal agencies let you hammer piles, dig, fill, and put equipment in the water. It's designed to protect salmon, steelhead, and other species during their most vulnerable times. In Oregon, that window varies by river basin, but call it July 1 through October 31, give or take two weeks either way. It sounds simple, but it's not. Every river has its own rules, and the schedule depends on the plant, the fish, and the moon. We've got to plan a season's worth of work into a four-month sprint. That's the reality.

It's about fish. Not about you.

Here's the thing. The window isn't there to make your life easier. It's there because coho and Chinook salmon and steelhead need a clean riverbed to spawn. They dig redds, lay eggs, and then the eggs sit there for months. Drive a pile into a redd and you've killed a generation of fish. State and fed eggheads have mapped these rivers carefully. That's why the window closes so hard in fall and reopens in summer, after the juveniles have migrated out. The exact dates are based on water temperature, flow, and the life cycle of the fish. In the Coquille, for example, the window might open in July and close in late September. On the Columbia, it could stretch into October. You see the pattern: low water, warm weather, fish stage out. That's your time. And it's not just fish. In some spots, there's a 'pre-work survey' requirement. You have to hire a biologist to walk the bed and flag any redds. If they find one, that area becomes off-limits, even within the window. So you don't just look at the calendar. You look at the dirt.

Reading Oregon's window table

The Oregon Department of Fish and Wildlife publishes an in-water work window schedule. It's a PDF, and it changes. I've got a laminated copy in my pickup, and I still check the website every year. The rule of thumb is simple: if your water body isn't on the list, you need a site-specific review. No exceptions. The table breaks down by major river basin. The Willamette, Sandy, Deschutes, Rogue, Coos, Coquille, Burnt River—each one has its own dates. For the Willamette, you're usually looking at August through October. For coastal streams, it's often July through mid-October. But don't trust memory. Last year I had a job on the Clackamas and the window closed four days early because of low flows. The fish got priority. I lost two weeks of production. The federal side is the US Army Corps of Engineers' Section 404 permit, and if you're in or near a listed habitat, you'll need an ESA consultation. NOAA Fisheries gets a say. That's why a straightforward dock can take a year to permit. You don't rush the paperwork.

How I build a season around the window

Once I know the window, I plan backwards. If the window opens July 15 and closes October 15, that's 90 days. I subtract 10 days for weather, 5 for breakdowns, and 5 for the usual drama. That leaves 70 real working days. So I schedule my crew, my equipment, and my materials to hit the water on day one. Winter is for permits. Spring is for getting the steel and treated timber delivered. By June, I've got the crane on the barge and the crew warmed up. Then we run. Not a sprint, but a controlled burn. We'll work 10-hour days, sometimes 12, and if the tide's right, we'll pull one long shift on the weekend. The fish don't care about your time-and-a-half. The worst thing you can do is slow-roll the first month and then try to play catch-up in October. I did that once on the Alsea, and we were driving piles in a rainstorm on the last day. The crew called it a 'reset.' I call it a mistake. Now I front-load the season. Get the hard stuff done in July when the weather's stable and the days are long. And let me tell you about equipment. Some spots have sound limits—decibel limits. You can't use an impact hammer unless you put a bubble curtain around it. That's a hell of a lot of time and hose. I've got an old V80 vibratory hammer that fits my reach, and for tight areas, I'll use a hydraulic impact on an excavator. It's all about matching the tool to the schedule.

Permits, fines, and the long winter

Permits come from the state and feds. In Oregon, you'll need a Removal and Fill permit from the Department of State Lands. Then the Army Corps' 404, and if a species is listed, a biological assessment. They're interconnected. If one agency misses a comment, your application goes to the bottom of the pile. I've seen projects die in review simply because the consultant didn't use the words 'essential fish habitat.' Working outside the window is a criminal offense in some cases. The fines can run into six figures, and you can lose your license. Worse, you'll be the contractor who killed a redd. That's a stain you can't wash off. In the winter, I do maintenance and book next year's schedule. It's a slower time, but it's not a lazy time. I'll be chasing down geotech reports and sequencing drawings. I've been at this 30 years, and I can tell you one thing: the window is the boss. It doesn't care about deadlines or contracts. You fight it, you lose. You work with it, and you can get a lot done in a short span. Respect the window, plan like hell, and you'll make a living.

Frequently Asked Questions

When is the typical in-water work window in Oregon? There's no single date, but most coastal streams and estuaries run July through October. The Willamette often starts later. Check ODFW's schedule for your exact river. Can I get an emergency exception to work outside the window? For true emergencies—like a failing bridge or a fuel leak—you can apply for emergency provisions. Be ready to prove the problem is immediate. Don't count on it for a project that just fell behind. What's the penalty for working outside the window? State and federal fines, stop-work orders, and possibly criminal charges. It can mean a six-figure hit and a lot of paperwork. Not worth it. Does this apply to private docks and seawalls? Yes, almost anything that touches the streambed. Some small repairs may qualify for a minor permit, but you still have to respect the window.