SR 99 Tunnel tolling

Find out how to pay tolls, and what the toll rates are for the SR 99 tunnel.

A map showing the location of the SR 99 tunnel, which carries traffic underneath Seattle from the Space Needle to the Stadium.

Tolling the SR 99 tunnel helps repay $200 million borrowed to build the tunnel, and also pays for the ongoing cost of operating and maintaining a safe facility. This funding is part of the $3.3 billion investment to replace the aging Alaskan Way Viaduct and rebuild SR 99 through Seattle.

How to pay

You have two options to pay a toll in the SR 99 tunnel:

  • Good To Go! account: With a Good To Go! account and pass installed in your vehicle, you pay the lowest toll rate and don't have to worry about waiting for a bill to arrive in the mail. Learn more about Good To Go! accounts and passes.
  • Pay By Mail: If you don't have a Good To Go! account and you travel in the tunnel, we’ll take a picture of your license plate and mail a bill to the address on your vehicle registration with the Department of Licensing. The Pay By Mail toll rate is $2 higher than the Good To Go! pass rate.

Toll rates

Tolls change based on time of day, with lower toll rates on nights and weekends. Tolls are collected in both directions as you exit the tunnel.  

Drivers will receive plenty of notice that the tunnel is tolled before they enter it. Approximately 24 toll signs (PDF 817KB)are located at key points on the north and south ends of the tunnel.

Drivers who choose to register their license plate on a Good To Go! account without a pass, called Pay By Plate, pay an extra 25 cents per trip on top of the Good To Go! pass rate.

Weekday toll rates (Monday through Friday)

Monday through Friday

Good To Go! Pass

Pay By Mail

11 p.m. to 6 a.m.

$1.15

$3.15

6 a.m. to 7 a.m.

$1.45

$3.45

7 a.m. to 9 a.m.

$1.75

$3.75

9 a.m. to 3 p.m.

$1.45

$3.45

3 p.m. to 6 p.m.

$2.60

$4.60

6 p.m. to 11 p.m.

$1.45

$3.45

Weekend toll rates

Weekends and holidays*

Good To Go! Pass

Pay By Mail

All day

$1.15

$3.15

*Holidays: The weekend toll rate applies on the following holidays: New Years Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day.

Multi-axle toll rates

Vehicles with more than two axles pay a higher toll rate based on the number of axles.

Three-axle vehicle toll rates
Time Good To Go! pass Pay By Mail
6 a.m. to 7 a.m. $2.20 $5.20
7 a.m. to 9 a.m. $2.65 $5.65
9 a.m. to 3 p.m. $2.20 $5.20
3 p.m. to 6 p.m. $3.90 $6.90
6 p.m. to 11 p.m. $2.20 $5.20
11 p.m. to 6 a.m. $1.75 $4.75
Weekends, holidays (all day) $1.75 $4.75

 

Four-axle vehicle toll rates
Time Good To Go! pass Pay By Mail
6 a.m. to 7 a.m. $2.90 $6.90
7 a.m. to 9 a.m. $3.50 $7.50
9 a.m. to 3 p.m. $2.90 $6.90
3 p.m. to 6 p.m. $5.20 $9.20
6 p.m. to 11 p.m. $2.90 $6.90
11 p.m. to 6 a.m. $2.30 $6.30
Weekends, holidays (all day) $2.30 $6.30
Five-axle vehicle toll rates
Time Good To Go! pass Pay By Mail
6 a.m. to 7 a.m. $3.65 $8.65
7 a.m. to 9 a.m. $4.40 $9.40
9 a.m. to 3 p.m. $3.65 $8.65
3 p.m. to 6 p.m. $6.50 $11.50
6 p.m. to 11 p.m. $3.65 $8.65
11 p.m. to 6 a.m. $2.90 $7.90
Weekends, holidays (all day) $2.90 $7.90
Six-axle vehicle toll rates
Time Good To Go! pass Pay By Mail
6 a.m. to 7 a.m. $4.35 $10.35
7 a.m. to 9 a.m. $5.25 $11.25
9 a.m. to 3 p.m. $4.35 $10.35
3 p.m. to 6 p.m. $7.80 $13.80
6 p.m. to 11 p.m. $4.35 $10.35
11 p.m. to 6 a.m. $3.45 $9.45
Weekends, holidays (all day) $3.45 $9.45

Toll rate signs

Drivers who use the tunnel will notice that the toll rates are displayed at the toll collection point, which is located at the exits of the tunnel. Drivers will pay the rate they see on the sign when they exit the tunnel. The toll rates are not displayed before the entrance of the tunnel.

We display the toll rates at the point where tolls are collected, which happens at the tunnel exits. Toll rates for the tunnel change based on the time of day. If we posted the rates before drivers reach the toll collection point, it’s possible that drivers could see one rate displayed on the sign, but be charged a different rate by the time they drove through the tunnel. We want to avoid any confusion, and make sure drivers know exactly what they’re being charged.

Due to size constraints at the tunnel entrances, both the toll equipment and the toll rate signs could not fit (remember, they have to be located closely to maintain accuracy). Also, by the time drivers get to the tunnel entrance, they would have already decided to use the tunnel and pay the toll since they have already committed to using the tunnel. The toll collection point needs to be located after the last exit before the tunnel since drivers are only charged on SR 99 if they use the tunnel.

Exemptions

All vehicles must pay a toll except for emergency vehicles, vanpools and transit. Carpools and motorcycles pay tolls just like all other personal vehicles.

Reporting and policy

To view financial statements, the Toll Division Annual Report or other policy-related documents, please visit our reporting page.

 

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