Openings · last 7 days
0
01 · Detected Opening History · the openings record · file CS-251912
When Spillway Park - Chinook Shelter (OR) reopens
Spillway Park - Chinook Shelter (OR)'s openings record: every site-date Campsite Sniper detected turning available, logged and time-stamped. Refreshed hourly.
Openings · last 30 days
0
Openings · last 90 days
17
Only 17 openings in the last 90 days: not enough recent activity for a reliable pattern. A free Campsite Sniper alert watches around the clock instead, and pings you the moment one opens.
02 · Availability Outlook · Sep 18 – Sep 30, 2026 · of 1 monitored site
Of the 13 tracked reservation dates (Sep 18 – Sep 30, 2026): 12 open for online reservation · 1 reserved.
Where the open windows are
7.7% of tracked reservation dates are not currently open for online reservation. 12 of 13 remain open; here is where they are.
Load status
Sep 18 – Sep 30, 2026Not open online7.7%
Open reservation dates12 / 13
Reserved (of online inventory)1 / 13
Weekday openings7
Weekend openings5
Of the open reservation dates on mapped day-use units, 7 fall on weekdays and 5 on weekends (Fri–Sun).
Open dates by month
Sep 2026 – Sep 2026September holds the most room. 12 of 13 reservation dates are still open there.
Holiday windows — day use
Units open per date · of 1 shelter| Window | Date | Units open | Status |
|---|---|---|---|
| Labor Day | SAT Sep 5 | 0 | None open |
| SUN Sep 6 | 0 | None open | |
| MON Sep 7 | 0 | None open |
Labor Day: no online availability on any tracked date.
Availability by shelter
Most open reservation dates · tracked window| Shelter | Open reservation dates |
|---|---|
| 001 | 12 |
This shelter currently has 12 reservation dates available.
Next windows
As of Sep 18, 2026 snapshotNext open dateFri · Sep 18
Next open weekendFri · Sep 18
The next bookable date is Sep 18; the first open weekend starts Sep 18. Campsite Sniper can watch later dates for you.
Reservation dates
12 available reservation dates across 1 shelter at Spillway Park - Chinook Shelter (OR), from the same hourly snapshot as everything above.
All 1 shelter with current availability
| Shelter | Open reservation dates | Consecutive dates | Dates |
|---|---|---|---|
| 001 | 12 | 11 dates | Sep 18, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30 |
About Spillway Park - Chinook Shelter (OR)
Overview
Spillway Park is located on Lake Umatilla just downstream of McNary Lock and Dam in eastern Oregon on the Mid-Columbia River.
Recreation
The park provides two overlooks to watch McNary Dam, a volleyball court and access to the McNary Dam Wildlife Area trail system.
Natural Features
The park is situated along the bank of the Columbia River. Day users can enjoy the relaxing shade as they get a beautiful look at McNary Dam.
Nearby Attractions
The Pacific Salmon Visitor Center, Oregon Fish Viewing Room and the McNary Dam Wildlife Area with its beautiful natural trails are all in close proximity to Spillway Park.
1 monitored shelterDay use1 shadedWaterfrontRiverfrontPets OKMax party 300
Getting there
From Highway 730 turn north on Devore Road, at the stop sign turn left and continue down the hill past McNary Dam's main parking lot and the Spillway Park Shelter will be on your right once get into the park.
Po Box 1230, Umatilla, OR 97882541-922-2268
Day Use AreaDisc GolfFishingHikingInformation SiteObservation SitePicnicking
View on Recreation.gov ↗ Get directions ↗
03 · Field Photos · roll CS-251912 · facility
Photo gallery
Roll CS-251912 · Spillway Park - Chinook Shelter (OR) · Umatilla OR7 frames · facility
FAQ
How do I get a reservation at Spillway Park - Chinook Shelter (OR)?
Reservations for Spillway Park - Chinook Shelter (OR) are made through Recreation.gov. The current snapshot shows substantial availability: 12 of 13 tracked reservation dates are open (92.3%), though availability can change. Campsite Sniper has also detected 17 site openings here in the last 90 days, so further dates may appear. Pick the shelter on the map to see its reservation calendar, or set a free Campsite Sniper alert. You complete the reservation yourself on Recreation.gov.
Does Campsite Sniper book this facility for me?
No. Campsite Sniper sends alerts and direct Recreation.gov links. It never books, pays for, holds, hoards, or resells reservations.
How current is this availability data?
Campsite Sniper re-checks public Recreation.gov availability for this facility every hour and republishes whenever anything changes. This facility's data last changed at Sep 18, 2026 16:19 UTC; an older timestamp means nothing has changed since that time, not that checking stopped. Always confirm final availability on Recreation.gov when you book.
How often do new openings appear at Spillway Park - Chinook Shelter (OR)?
Campsite Sniper detected 17 site-date openings here over the last 90 days, none in the last 7. A free alert watches around the clock and pings you the moment one appears.
Which month has the most availability at Spillway Park - Chinook Shelter (OR)?
September 2026, with 12 open reservation dates in the current snapshot of 13.
When is the next open date at Spillway Park - Chinook Shelter (OR)?
As of the Sep 18, 2026 snapshot: the next open date is Fri, Sep 18 and the next open weekend starts Fri, Sep 18. Detected openings can add earlier dates at any time; a free Campsite Sniper alert catches those the moment they appear.
Let the app watch this shelter
Pick dates
Choose the reservation dates you want at Spillway Park - Chinook Shelter (OR).
Watch
Campsite Sniper can monitor this facility and notify you if a selected date becomes available.
Get the ping
When a selected date becomes available, you get a push with a Recreation.gov link so you can review and book it yourself.