Henry Hagg Lake fishing: Smallmouth Bass, Largemouth Bass, Yellow Perch
Target species: Smallmouth Bass, Largemouth Bass, Yellow Perch
Best months: Sep, Oct for Smallmouth Bass
Second window: Jun, Jul, Aug, Sep, Oct, Nov for Largemouth Bass
Boat: 4 ramps and launches on file for this water.
Start here: Launch at C-Ramp, 3 lanes.
The reservoir
Henry Hagg Lake covers 1,082 acres in Oregon, across Washington County. It is a reservoir: 90.5% of it is 60 feet deep or less; the deepest point measured is ≈86.5 feet (26.4 m). Our records hold 5 species for this water.
Depth and bottom
Deepest measured point: ≈86.5 ft (26.4 m). 90.5% of the water is 60 feet or shallower. We hold 16 depth contours for this water, drawn from 284,156 soundings.
- 0–5 ft: 29.7% of the water
- 5–10 ft: 7.8% of the water
- 10–15 ft: 6.3% of the water
- 15–20 ft: 4.9% of the water
- 20–25 ft: 4.6% of the water
- 25–30 ft: 5.2% of the water
- 30–35 ft: 4.9% of the water
- 35–40 ft: 4.9% of the water
- 40–45 ft: 5.4% of the water
- 45–50 ft: 6.2% of the water
- 50–55 ft: 5.2% of the water
- 55–60 ft: 5.4% of the water
- 60–65 ft: 5% of the water
- 65–70 ft: 4.6% of the water
3 target fish, led by Smallmouth Bass
- Smallmouth Bass — Best months: Sep, Oct.
- Largemouth Bass — Best months: Jun, Jul, Aug, Sep, Oct, Nov.
- Yellow Perch — Best months: Jul, Aug, Sep, Oct.
Also recorded here: Brown Bullhead, Yellow Bullhead.
Water and conditions
Water temperature averages 52°F across the year. The coldest single reading we hold is 40°F and the warmest is 81°F; the warmest monthly average is 62°F. pH averages 7. These readings span 2016–2026.
Monthly average water temperature: Jan 44°F · Feb 43°F · Mar 43°F · Apr 45°F · May 47°F · Jun 53°F · Jul 54°F · Aug 57°F · Sep 62°F · Oct 61°F · Nov 53°F · Dec 47°F
4 ramps and launches on this water
On this water we hold 3 trailer ramps and 1 hand launch.
- C-Ramp — 3 lanes, restrooms. Washington County. phone 503-846-7000 · website co.washington.or.us/Support_Services/Facilities/Parks/index.cfm
- Eagle Point (A) Ramp — 2 lanes, restrooms. Washington County. phone 503-846-7000 · website co.washington.or.us/Support_Services/Facilities/Parks/index.cfm
- Elks Recreation Area — 1 lane, restrooms. Washington County. phone 503-846-7000 · website co.washington.or.us/Support_Services/Facilities/Parks/index.cfm
Car-top and kayak launches — no trailer
- Dam Overlook — restrooms. Washington County. phone 503-846-7000 · website co.washington.or.us/Support_Services/Facilities/Parks/index.cfm
Fee and opening hours are blank for all 4 places in this list: a blank means we hold no such field, not that it is free or always open, and this list may not be complete.
Season by season
- Winter (Jan, Feb, Mar, Apr, 43–45°F) — Steady but no peak: Smallmouth Bass, Yellow Perch.
- Spring (May, Jun, Jul, Aug, 47–57°F) — Biting: Largemouth Bass, Yellow Perch.
- Summer (Sep, Oct, 61–62°F) — Biting: Smallmouth Bass, Largemouth Bass, Yellow Perch.
- Fall (Nov, Dec, 47–53°F) — Biting: Largemouth Bass. Steady but no peak: Smallmouth Bass, Yellow Perch.
What is hard here
Winter water drops to 43°F, and the warm-water species stop feeding well before you do.
Where this data comes from
- US Bureau of Reclamation — USBR reservoir sedimentation surveys: class A, a survey of the bottom, 2001.
- Webster, K.E., McCullough, I.M., Soranno, P.A. LAGOS-US DEPTH v1.0, EDI, doi:10.6073/pasta/64ddc4d04661d9aef4bd702dc5d8984f (CC BY 4.0); Cheruvelil et al. LAGOS-US LOCUS v1.0 (EDI) — LAGOS-US DEPTH v1.0: Lake depth for 17,675 lakes in the conterminous U.S.: class B, a depth figure measured and published by an agency, without a bottom map.
Part of these depths rest on an averaged water level, so they are approximate (≈).
