Foster Lake

• Lewis Creek Park is a great summer destination on the Foster Lake

SwimmingHiking OregonFishing OregonBoatingPicnicking

If you are looking for a spot for some water splashing fun, then 40 acres of Lewis Creek Park nestled along Foster Reservoir near the small town of Sweet Home is the perfect place for you. The reservoir was formed by constructing Foster Dam on the South Fork of the Santiam River receiving its waters from the South Fork and Middle Fork through Green Peter Reservoir.

Foster and Green Peter (the middle fork of the Santiam River) reservoirs and dams operate together for the purposes of power generation, flood damage prevention, irrigation, and a variety of recreation opportunities.

Picnicking, water skiing, paddling, boating, and swimming in a roped-off area make Lewis Creek Park the ideal destination for hosting events or for a fun day out by the lake. Foster Reservoir is a popular location for water polo tournaments and triathlons. Sunnyside County Park is another excellent spot on the lake.

The lake is stocked with 40,000 rainbow trouts annually. Also, large and smallmouth bass, kokanee, bluegill can be caught here.

Foster Lake – Lewis Creek Park

Foster Lake

Foster Reservoir

Foster Reservoir

Lewis Creek Park | General Description

Open: Year-round from dawn until dusk (for day-use)
Managed by: Linn County
Location: Foster Lake

Services: Restrooms, drinking water, garbage service, boat ramp, and picnic sites
Activities: Swimming, water sports, hiking, biking, fishing, boating, and volleyball

Distance from the parking: Short
Road access: Any passenger vehicle
Day-use fees: Yes
Dogs: Must be on a leash
Usage: Heavy

Accommodations: Sunnyside Campground, Edgewater RV Resort & Marine, Foster Lake RV Resort, and Country Star RV Park

Affordable vacation rentals for short and long term stay at Sweet Home

Elevation: 703 ft (214 m)

Lewis Creek Park is located:

  • 7 miles east of Sweet Home
  • 51 miles northeast of Eugene
  • 58 miles southeast of Salem
  • 104 miles southeast of Portland.

Swimming spot rating: 3 out of 5
Body of Water: Reservoir
Water quality: Transparent
Current: None
Depth: Deep and shallow
Beach: Sand
Water T° (summer): Warm


Directions to Lewis Creek Park

From I-5,

  • Take exit 228 for OR-34 East toward Lebanon
  • Turn left onto OR-34 East and follow 5.4 miles to Airport Drive
  • Merge onto Denny School Road on the right and continue onto Airport Drive for 2.2 miles to US-20
  • Turn right onto US-20 East/Main Street and drive for about 7 miles to Pleasant Valley Road in Sweet Home
  • Turn left onto Pleasant Valley Road then right onto North River Drive and continue 6 miles to the destination.

Phone: 541-937-2131
Address: 44450 North River Drive, Foster, Oregon 97345

Get Google Maps Directions

Foster and Green Peter Reservoirs

Foster Lake Map

1 - Andrew Wiley Park - a day-use park.
2 - Edgewater County Park & Marina - full hookup RV sites and boat slips.
3 - Foster Lake RV Resort - full and partial RV sites, cabins, studio, tent sites, and boat and RV storage.
4 - Country Star RV Park - a clubhouse, camping cabins, and condos.
5 - Shea Point - a day-use area.

6 - Calkins Ramp - a boat ramp.
7 - Gedney Creek Park - a boat ramp.
8 - Lewis Creek Park - a day-use park.
9 - Sunnyside Park - a campground and day-use area.
10 - River Bend Park - a campground and day-use area.
11 - Thistle Creek Boat Ramp - a boat ramp.
12 - Whitcomb Creek Park - campsites and boat ramp.

Adventures Nearby


  1. I live less than half mile from the foster dam and just about 3.5 miles from the thriftway store on the west end of sweet home so I don’t think seven miles from sweet home is right any more

    1. Author

      Thank you for your comment.
      You are absolutely right. The Foster Lake is about 3.5 miles from Sweet Home. However, Lewis Creek Park is located at the northeast end of the reservoir. So, you need drive over 3 miles around lake to get there – totally about 7 miles.

  2. How is the Cellular coverage at Lewis Creek campground?

    1. We never had any issues with AT&T.

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