Henry Hagg Lake

{{short description|Artificial lake in Oregon, United States}}

{{Use mdy dates|date=February 2025}}

{{Infobox body of water

| name = Henry Hagg Lake

| image = Aerial View of Henry Hagg Lake.JPG

| caption = Aerial view of the lake

| image_bathymetry =

| caption_bathymetry =

| location = Oregon Coast Range foothills, Washington County, Oregon, United States

| coords = {{coord|45.47345|N|123.20344|W|region:US_type:waterbody|display=inline,title}}

| type =

| inflow = Scoggins Creek

| outflow = Tualatin River

| catchment =

| basin_countries = United States

| length =

| width =

| area = {{convert|1153|acre|km2}}{{cite web|title=Henry Hagg Lake (Washington) |url=http://aol.research.pdx.edu/lakes/17090010004615|website=Atlas of Oregon Lakes|accessdate=6 January 2016}}

| depth = {{convert|51|ft|abbr=on}}

| max-depth = {{convert|110|ft|abbr=on}}

| volume ={{convert|59910|acre.ft|abbr=on|lk=in}}

| residence_time =

| shore =

| elevation = {{convert|303.5|ft|m|abbr=on}}{{cite web|title=Henry Hagg Lake Water Quality Model|url=http://or.water.usgs.gov/tualatin/hagg_lake/hagg_lake.html|website=USGS|accessdate=6 January 2016}}

| islands =

| cities =

| pushpin_map = Oregon#USA

| pushpin_label_position =

| pushpin_map_alt = Location of Henry Hagg Lake in Oregon, USA.

| pushpin_map_caption =

| website =

| reference =

}}

Henry Hagg Lake (also known simply as Hagg Lake) is an artificial lake in northwest Oregon, in the United States. The reservoir is an impoundment of Scoggins Creek, which drains a small portion of the eastern side of the Northern Oregon Coast Range.{{cite web

|url=http://www.trwc.org/tualatin-info/upper/tualatin_scoggins_wa.pdf

|title=Upper Tualatin-Scoggins Watershed Analysis

|author=Washington County Soil and Water Conservation District and U.S. Department of the Interior, BLM

|date=February 2000

|accessdate=July 8, 2007

|url-status=dead

|archiveurl=https://web.archive.org/web/20070928161747/http://www.trwc.org/tualatin-info/upper/tualatin_scoggins_wa.pdf

|archivedate=September 28, 2007

}} The lake and creek are part of the Tualatin River’s watershed in the Tualatin Valley.Colby, Richard. Hagg Lake water helps river run. The Oregonian, July 1, 2004. It is located about {{convert|5|mi|km}} southwest of Forest Grove.{{cite web

| url = {{gnis3|1158095}}

| title = Geographic Names Information System Feature Detail Report Henry Hagg Lake

| accessdate = July 8, 2007

}}

The lake is named for Henry Hagg, an Oregon dairy farmer who was active in local agricultural committees during the first half of the twentieth century.{{Cite web |title=Henry Hagg Lake |url=https://www.oregonencyclopedia.org/articles/henry_hagg_lake/ |access-date=2023-10-24 |website=www.oregonencyclopedia.org |language=en}}

File:Scoggins dam.jpg