The SR 99 tunnel, located in downtown Seattle, opened for traffic in February 2019 and began tolling in November of that same year.
The SR 99 tunnel has “variable tolling,” meaning that toll rates vary based on a set schedule by day of week and time of day.
Below are the current toll rates and toll policies for the SR 99 tunnel, effective July 1, 2025.
Note: Tolling exemption information can be found on the exemptions page.
Toll Rates and Policies
| Weekdays | Good To Go! Pass |
Pay By Mail | Good To Go! Pay By Plate |
|---|---|---|---|
| Midnight to 6 a.m. | $ 1.25 | $ 3.25 | $ 1.50 |
| 6 a.m. to 7 a.m. | $ 1.55 | $ 3.55 | $ 1.80 |
| 7 a.m. to 9 a.m. | $ 1.85 | $ 3.85 | $ 2.10 |
| 9 a.m. to 3 p.m. | $ 1.55 | $ 3.55 | $ 1.80 |
| 3 p.m. to 6 p.m. | $ 2.80 | $ 4.80 | $ 3.05 |
| 6 p.m. to 11 p.m. | $ 1.55 | $ 3.55 | $ 1.80 |
| 11 p.m. to midnight | $ 1.25 | $ 3.25 | $ 1.50 |
| Weekends and Specified Holidays* | Good To Go! Pass |
Pay By Mail | Good To Go! Pay By Plate |
| Midnight to midnight | $ 1.25 | $ 3.25 | $ 1.50 |
*The weekend toll rates are charged on the following holidays:
New Years Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day.
| Weekdays | Good To Go! Pass |
Pay By Mail | Good To Go! Pay By Plate |
|---|---|---|---|
| Midnight to 6 a.m. | $ 1.90 | $ 4.90 | $ 2.15 |
| 6 a.m. to 7 a.m. | $ 2.35 | $ 5.35 | $ 2.60 |
| 7 a.m. to 9 a.m. | $ 2.80 | $ 5.80 | $ 3.05 |
| 9 a.m. to 3 p.m. | $ 2.35 | $ 5.35 | $ 2.60 |
| 3 p.m. to 6 p.m. | $ 4.20 | $ 7.20 | $ 4.45 |
| 6 p.m. to 11 p.m. | $ 2.35 | $ 5.35 | $ 2.60 |
| 11 p.m. to midnight | $ 1.90 | $ 4.90 | $ 2.15 |
| Weekends and Specified Holidays* | Good To Go! Pass |
Pay By Mail | Good To Go! Pay By Plate |
| Midnight to midnight | $ 1.90 | $ 4.90 | $ 2.15 |
*The weekend toll rates are charged on the following holidays:
New Years Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day.
| Weekdays | Good To Go! Pass |
Pay By Mail | Good To Go! Pay By Plate |
|---|---|---|---|
| Midnight to 6 a.m. | $ 2.50 | $ 6.50 | $ 2.75 |
| 6 a.m. to 7 a.m. | $ 3.10 | $ 7.10 | $ 3.35 |
| 7 a.m. to 9 a.m. | $ 3.70 | $ 7.70 | $ 3.95 |
| 9 a.m. to 3 p.m. | $ 3.10 | $ 7.10 | $ 3.35 |
| 3 p.m. to 6 p.m. | $ 5.60 | $ 9.60 | $ 5.85 |
| 6 p.m. to 11 p.m. | $ 3.10 | $ 7.10 | $ 3.35 |
| 11 p.m. to midnight | $ 2.50 | $ 6.50 | $ 2.75 |
| Weekends and Specified Holidays* | Good To Go! Pass |
Pay By Mail | Good To Go! Pay By Plate |
| Midnight to midnight | $ 2.50 | $ 6.50 | $ 2.75 |
*The weekend toll rates are charged on the following holidays:
New Years Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day.
| Weekdays | Good To Go! Pass |
Pay By Mail | Good To Go! Pay By Plate |
|---|---|---|---|
| Midnight to 6 a.m. | $ 3.15 | $ 8.15 | $ 3.40 |
| 6 a.m. to 7 a.m. | $ 3.90 | $ 8.90 | $ 4.15 |
| 7 a.m. to 9 a.m. | $ 4.65 | $ 9.65 | $ 4.90 |
| 9 a.m. to 3 p.m. | $ 3.90 | $ 8.90 | $ 4.15 |
| 3 p.m. to 6 p.m. | $ 7.00 | $ 12.00 | $ 7.25 |
| 6 p.m. to 11 p.m. | $ 3.90 | $ 8.90 | $ 4.15 |
| 11 p.m. to midnight | $ 3.15 | $ 8.15 | $ 3.40 |
| Weekends and Specified Holidays* | Good To Go! Pass |
Pay By Mail | Good To Go! Pay By Plate |
| Midnight to midnight | $ 3.15 | $ 8.15 | $ 3.40 |
*The weekend toll rates are charged on the following holidays:
New Years Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day.
| Weekdays | Good To Go! Pass |
Pay By Mail | Good To Go! Pay By Plate |
|---|---|---|---|
| Midnight to 6 a.m. | $ 3.75 | $ 9.75 | $ 4.00 |
| 6 a.m. to 7 a.m. | $ 4.65 | $ 10.65 | $ 4.90 |
| 7 a.m. to 9 a.m. | $ 5.55 | $ 11.55 | $ 5.80 |
| 9 a.m. to 3 p.m. | $ 4.65 | $ 10.65 | $ 4.90 |
| 3 p.m. to 6 p.m. | $ 8.40 | $ 14.40 | $ 8.65 |
| 6 p.m. to 11 p.m. | $ 4.65 | $ 10.65 | $ 4.90 |
| 11 p.m. to midnight | $ 3.75 | $ 9.75 | $ 4.00 |
| Weekends and Specified Holidays* | Good To Go! Pass |
Pay By Mail | Good To Go! Pay By Plate |
| Midnight to midnight | $ 3.75 | $ 9.75 | $ 4.00 |
*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, 2022, and every three years thereafter, subject to review and potential adjustment by the WSTC, toll rates for the SR 99 tunnel shall be set as follows:
- All two-axle Good To Go! toll rates shall increase by 3%, rounded to the nearest five-cent interval.
- 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.
Under current law (RCW 47.56.864), toll revenues generated by the SR 99 tunnel must be used to fund $200 million of bonded construction costs, as well as the facility’s toll collection, operations, maintenance, and repair and replacement costs.
Tolls are collected in both directions when exiting the SR 99 tunnel.