Motorists may experience traffic backups near Hood Canal Bridge this week as the state adds traffic cameras to State Route 3 and State Route 104. Traffic delays are expected on both state routes.

The Department of Transportation is installing nine new cameras this summer that will allow motorists to check live traffic conditions near the bridge online, according to a news release. Advisory radio transmitters and signs will be installed at the intersection of the State Route 3 and State Route 305 and on State Route 3 at Pioneer Hill Road.

Kent-based Signal Electric began work on the $456,452 project yesterday.

Traffic will be alternated around construction sites from 7 p.m. to 5:30 a.m. Tuesday, Wednesday and Thursday this week.

Traffic cameras will be installed in the following locations:

-SR 3 south of Equestrian Drive, milepost 54.07

– SR 3at Pioneer Hill Road NW, milepost 54.75

– SR 3 at Pioneer Way NW, milepost 56.04

– SR 3 at Big Valley Road, milepost 57.08

-SR 3, south of Sunset Way NE, milepost 57.84

– SR 3, north of Sunset Way NE, milepost 58.65

– SR 3 at South Bridge Way NE, milepost 59.84

-SR 104, north of Old Stark Road, milepost 13.13

-SR 104 at Wheeler Street, milepost 15

The new cameras will be operational in October, according to the release. There are already three traffic cameras on and near the bridge.