Origin
Happy Valley, OR
Morning in Happy Valley on Saturday
Local time
10:28 AM
PDT
Current temp
49°F
Unavailable
Compiled and reviewed by the Trip.ovh planning team at COD Solutions Oy · Last reviewed Apr 18, 2026 · Editorial standards
Drive Time
27m
Distance
13.9 mi
22 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$3
one way
EV Charging
Unknown
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Happy Valley, OR
damien Saillet
Lake Oswego, OR
Wikimedia Commons
The drive from Happy Valley, OR to Lake Oswego, OR covers 13.9 miles and takes about 27m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on I 205, Willamette Drive, Pacific Highway for much of the mileage, and the overall profile is mixed highway & surface. The longest uninterrupted segment is about 5 miles on I 205. At current regular gas prices, budget about $2.77 one way before food or hotel costs.
| Road | Distance | Duration |
|---|---|---|
| I 205 | 5 mi | 6m |
| Willamette Drive | 3 mi | 6m |
| Pacific Highway | 1.4 mi | 3m |
| Southeast 129th Avenue | 0.8 mi | 1m |
| Southeast Sunnybrook Boulevard | 0.8 mi | 1m |
| Southeast Sunnyside Road | 0.8 mi | 1m |
| South State Street | 0.6 mi | 1m |
| Southeast 122nd Avenue | 0.5 mi | 1m |
Step-by-step road directions between Happy Valley, OR and Lake Oswego, OR.
Start on Southeast Mount Scott Boulevard
Turn sharp left onto Southeast King Road
Enter roundabout onto Southeast 129th Avenue
Continue on Southeast 129th Avenue
Continue on Southeast 122nd Avenue
Turn right onto Southeast Sunnyside Road
Turn left onto Southeast Sunnybrook Boulevard
Turn left
Merge onto I 205
Take the exit
Turn right onto OR 43
Continue on OR 43
Continue on OR 43
Turn left onto A Avenue
Turn right
Arrive at destination
5 decision points cluster between mile 0 and 13.4 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
Turn sharp left onto Southeast King Road
Sharp turn - reduce speed on approach
Enter roundabout onto Southeast 129th Avenue
Roundabout - know your exit number before entering
Turn left toward I 205 South: Oregon City
Lane positioning matters here
Take the exit toward OR 43: West Linn, Lake Oswego
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Turn left onto A Avenue
Lane positioning matters here
Regular Gas
$2.77 one way
$5.54 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $5.36 | $2.93 | $5.86 |
| premium | $5.59 | $3.06 | $6.12 |
| diesel | $5.61 | $3.07 | $6.14 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$3
Estimated CO2 emission: 4.9 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $1 in charging · 0 stops · 60% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 4.2 | 0 | $1.46 | $0.67 |
| Efficient EV | 3.5 | 0 | $1.22 | $0.56 |
| EV Truck/SUV | 5.6 | 0 | $1.95 | $0.89 |
Gas CO2
5 kg
EV CO2
2 kg (60% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Current conditions at both ends of the drive.
Origin
Morning in Happy Valley on Saturday
Local time
10:28 AM
PDT
Current temp
49°F
Unavailable
Destination
Morning in Lake Oswego on Saturday
Local time
10:28 AM
PDT
Current temp
42°F
Mostly Cloudy
Freeze Warning
Freeze Warning issued April 17 at 10:00PM MDT until April 18 at 10:00AM MDT by NWS Boise ID
Time zone
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
13.9 mi in 27m — 36% highway, the rest on surface roads. Biggest road: I 205.
This route mixes highway mileage with some local-road sections near the start or finish. You will hit about 10 points where you need to pay attention to lane position or signs. The trickiest moment comes early in the drive near Southeast King Road.
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 13.9 miles you will encounter 10 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: near the start (Southeast King Road): Sharp turn - reduce speed on approach; near the start (Southeast 129th Avenue): Roundabout - know your exit number before entering; at 3 miles: Lane positioning matters here.
Weekend Trip
Doable as a same-day drive at 27m. Total distance: 13.9 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
27m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (36%). Some complex stretches to watch for.
Scenic Drive
Mixed highway & surface route profile.
Compiled by the Trip.ovh planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, and EIA for fuel prices. See our methodology for refresh cadence and limitations.
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