An expressway is a high-capacity road built for fast travel with few stops or interruptions. Cars may enter and exit only at specific locations
The SR 509 Expressway in King County opened to traffic in June 2025, and tolling began September 29, 2025.
The SR 509 Expressway has “variable tolling,” meaning that toll rates vary based on a set schedule by day of week, time of day, and direction of travel.
Below are the current toll rates and toll policies for the SR 509 Expressway, which took effect when tolling began.
Note: Tolling exemption information can be found on the exemptions page.
Toll Rates and Policies
Northbound
| Weekdays | Good To Go! Pass |
Pay By Mail | Good To Go! Pay By Plate |
|---|---|---|---|
| Midnight to 5 a.m. | $ 1.20 | $ 3.20 | $ 1.45 |
| 5 a.m. to 6 a.m. | $ 1.80 | $ 3.80 | $ 2.05 |
| 6 a.m. to 9 a.m. | $ 2.40 | $ 4.40 | $ 2.65 |
| 9 a.m. to 7 p.m. | $ 1.80 | $ 3.80 | $ 2.05 |
| 7 p.m. to midnight | $ 1.20 | $ 3.20 | $ 1.45 |
| Weekends and Specified Holidays* | Good To Go! Pass |
Pay By Mail | Good To Go! Pay By Plate |
| Midnight to midnight | $ 1.20 | $ 3.20 | $ 1.45 |
*The weekend toll rates are charged on the following holidays:
New Years Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day.
Southbound
| Weekdays | Good To Go! Pass |
Pay By Mail | Good To Go! Pay By Plate |
|---|---|---|---|
| Midnight to 5 a.m. | $ 1.20 | $ 3.20 | $ 1.45 |
| 5 a.m. to 3 p.m. | $ 1.80 | $ 3.80 | $ 2.05 |
| 3 p.m. to 6 p.m. | $ 2.40 | $ 4.40 | $ 2.65 |
| 6 p.m. to 7 p.m. | $ 1.80 | $ 3.80 | $ 2.05 |
| 7 p.m. to midnight | $ 1.20 | $ 3.20 | $ 1.45 |
| Weekends and Specified Holidays* | Good To Go! Pass |
Pay By Mail | Good To Go! Pay By Plate |
| Midnight to midnight | $ 1.20 | $ 3.20 | $ 1.45 |
*The weekend toll rates are charged on the following holidays:
New Years Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day.
Northbound
| Weekdays | Good To Go! Pass |
Pay By Mail | Good To Go! Pay By Plate |
|---|---|---|---|
| Midnight to 5 a.m. | $ 1.80 | $ 4.80 | $ 2.05 |
| 5 a.m. to 6 a.m. | $ 2.70 | $ 5.70 | $ 2.95 |
| 6 a.m. to 9 a.m. | $ 3.60 | $ 6.60 | $ 3.85 |
| 9 a.m. to 7 p.m. | $ 2.70 | $ 5.70 | $ 2.95 |
| 7 p.m. to midnight | $ 1.80 | $ 4.80 | $ 2.05 |
| Weekends and Specified Holidays* | Good To Go! Pass |
Pay By Mail | Good To Go! Pay By Plate |
| Midnight to midnight | $ 1.80 | $ 4.80 | $ 2.05 |
*The weekend toll rates are charged on the following holidays:
New Years Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day.
Southbound
| Weekdays | Good To Go! Pass |
Pay By Mail | Good To Go! Pay By Plate |
|---|---|---|---|
| Midnight to 5 a.m. | $ 1.80 | $ 4.80 | $ 2.05 |
| 5 a.m. to 3 p.m. | $ 2.70 | $ 5.70 | $ 2.95 |
| 3 p.m. to 6 p.m. | $ 3.60 | $ 6.60 | $ 3.85 |
| 6 p.m. to 7 p.m. | $ 2.70 | $ 5.70 | $ 2.95 |
| 7 p.m. to midnight | $ 1.80 | $ 4.80 | $ 2.05 |
| Weekends and Specified Holidays* | Good To Go! Pass |
Pay By Mail | Good To Go! Pay By Plate |
| Midnight to midnight | $ 1.80 | $ 4.80 | $ 2.05 |
*The weekend toll rates are charged on the following holidays:
New Years Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day.
Northbound
| Weekdays | Good To Go! Pass |
Pay By Mail | Good To Go! Pay By Plate |
|---|---|---|---|
| Midnight to 5 a.m. | $ 2.40 | $ 6.40 | $ 2.65 |
| 5 a.m. to 6 a.m. | $ 3.60 | $ 7.60 | $ 3.85 |
| 6 a.m. to 9 a.m. | $ 4.80 | $ 8.80 | $ 5.05 |
| 9 a.m. to 7 p.m. | $ 3.60 | $ 7.60 | $ 3.85 |
| 7 p.m. to midnight | $ 2.40 | $ 6.40 | $ 2.65 |
| Weekends and Specified Holidays* | Good To Go! Pass |
Pay By Mail | Good To Go! Pay By Plate |
| Midnight to midnight | $ 2.40 | $ 6.40 | $ 2.65 |
*The weekend toll rates are charged on the following holidays:
New Years Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day.
Southbound
| Weekdays | Good To Go! Pass |
Pay By Mail | Good To Go! Pay By Plate |
|---|---|---|---|
| Midnight to 5 a.m. | $ 2.40 | $ 6.40 | $ 2.65 |
| 5 a.m. to 3 p.m. | $ 3.60 | $ 7.60 | $ 3.85 |
| 3 p.m. to 6 p.m. | $ 4.80 | $ 8.80 | $ 5.05 |
| 6 p.m. to 7 p.m. | $ 3.60 | $ 7.60 | $ 3.85 |
| 7 p.m. to midnight | $ 2.40 | $ 6.40 | $ 2.65 |
| Weekends and Specified Holidays* | Good To Go! Pass |
Pay By Mail | Good To Go! Pay By Plate |
| Midnight to midnight | $ 2.40 | $ 6.40 | $ 2.65 |
*The weekend toll rates are charged on the following holidays:
New Years Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day.
Northbound
| Weekdays | Good To Go! Pass |
Pay By Mail | Good To Go! Pay By Plate |
|---|---|---|---|
| Midnight to 5 a.m. | $ 3.00 | $ 8.00 | $ 3.25 |
| 5 a.m. to 6 a.m. | $ 4.50 | $ 9.50 | $ 4.75 |
| 6 a.m. to 9 a.m. | $ 6.00 | $ 11.00 | $ 6.25 |
| 9 a.m. to 7 p.m. | $ 4.50 | $ 9.50 | $ 4.75 |
| 7 p.m. to midnight | $ 3.00 | $ 8.00 | $ 3.25 |
| Weekends and Specified Holidays* | Good To Go! Pass |
Pay By Mail | Good To Go! Pay By Plate |
| Midnight to midnight | $ 3.00 | $ 8.00 | $ 3.25 |
*The weekend toll rates are charged on the following holidays:
New Years Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day.
Southbound
| Weekdays | Good To Go! Pass |
Pay By Mail | Good To Go! Pay By Plate |
|---|---|---|---|
| Midnight to 5 a.m. | $ 3.00 | $ 8.00 | $ 3.25 |
| 5 a.m. to 3 p.m. | $ 4.50 | $ 9.50 | $ 4.75 |
| 3 p.m. to 6 p.m. | $ 6.00 | $ 11.00 | $ 6.25 |
| 6 p.m. to 7 p.m. | $ 4.50 | $ 9.50 | $ 4.75 |
| 7 p.m. to midnight | $ 3.00 | $ 8.00 | $ 3.25 |
| Weekends and Specified Holidays* | Good To Go! Pass |
Pay By Mail | Good To Go! Pay By Plate |
| Midnight to midnight | $ 3.00 | $ 8.00 | $ 3.25 |
*The weekend toll rates are charged on the following holidays:
New Years Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day.
Northbound
| Weekdays | Good To Go! Pass |
Pay By Mail | Good To Go! Pay By Plate |
|---|---|---|---|
| Midnight to 5 a.m. | $ 3.60 | $ 9.60 | $ 3.85 |
| 5 a.m. to 6 a.m. | $ 5.40 | $ 11.40 | $ 5.65 |
| 6 a.m. to 9 a.m. | $ 7.20 | $ 13.20 | $ 7.45 |
| 9 a.m. to 7 p.m. | $ 5.40 | $ 11.40 | $ 5.65 |
| 7 p.m. to midnight | $ 3.60 | $ 9.60 | $ 3.85 |
| Weekends and Specified Holidays* | Good To Go! Pass |
Pay By Mail | Good To Go! Pay By Plate |
| Midnight to midnight | $ 3.60 | $ 9.60 | $ 3.85 |
*The weekend toll rates are charged on the following holidays:
New Years Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day.
Southbound
| Weekdays | Good To Go! Pass |
Pay By Mail | Good To Go! Pay By Plate |
|---|---|---|---|
| Midnight to 5 a.m. | $ 3.60 | $ 9.60 | $ 3.85 |
| 5 a.m. to 3 p.m. | $ 5.40 | $ 11.40 | $ 5.65 |
| 3 p.m. to 6 p.m. | $ 7.20 | $ 13.20 | $ 7.45 |
| 6 p.m. to 7 p.m. | $ 5.40 | $ 11.40 | $ 5.65 |
| 7 p.m. to midnight | $ 3.60 | $ 9.60 | $ 3.85 |
| Weekends and Specified Holidays* | Good To Go! Pass |
Pay By Mail | Good To Go! Pay By Plate |
| Midnight to midnight | $ 3.60 | $ 9.60 | $ 3.85 |
*The weekend toll rates are charged on the following holidays:
New Years Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day.
Tolls are collected 24 hours a day, 7 days a week
Effective July 1, 2030, and every year thereafter, subject to review and potential adjustment by the WSTC, toll rates for the SR 509 Expressway shall be set as follows:
- All two-axle Good To Go! toll rates shall increase by 2.15%, rounded to the nearest five-cent interval, but not less than five cents.
- All two-axle Pay By Mail toll rates shall be set to $2.00 more than the revised two-axle Good To Go! toll rates.
- All multi-axle Good To Go! and Pay By Mail toll rates shall be set equal to one-half the revised two-axle rates, multiplied by the number of axles up to a maximum of six axles, and rounded to the nearest five-cent interval.
The SR 509 Expressway provides critical connections to the state’s largest ports, improves movement of freight, and reduces congestion on local roads and highways.
Tolling helps fund $213.2 million in construction costs for both the SR 509 Expressway and the future SR 167 Expressway, which is a portion of the total $2.83 billion Puget Sound Gateway Program funding. Tolling also funds operations, preservation, and maintenance costs for the Puget Sound Gateway facilities and supports traffic management.