WATERLOO REGION — Guelph Street in Kitchener closed Monday as advance work starts on the new Highway 7 to Guelph.

Guelph Street goes under Highway 85 where the new Highway 7 will start. The bridge there is being widened to make room for more lanes above. Guelph Street is expected to be closed four months.

Also starting later this year are utility relocations at the nearby Victoria Street bridge over Highway 85. That work continues into 2016. Then that bridge is set for replacement in 2017.

Work on a Shirley Avenue extension is also part of this year's work plan to get ready for Highway 7 construction.

The new highway will connect Highway 85 with the north end of the Hanlon Parkway/Highway 6 in Guelph. In 2007 — the last information available — the project was estimated to cost about $300 million.

Here's other work starting or already underway this week:

CAMBRIDGE

• Dundas Street (Maple Bush to Myers) — lane closures through June.

• Fountain Street North (at Highway 401) — closed through October for bridge construction

• Fountain Street South (at Grand River) — lane closed for bridge repairs through June 16

• Franklin Boulevard (Clyde to Green Gate) — lanes closed (and Savage Drive access closed through summer) for road rebuilding and roundabout construction

• Franklin Boulevard (at Sheldon) — lanes closed for utility work

• Hespeler Road (at Highway 401) — lane closures for bridge repairs, through October

• Hespeler Road (at Munch) — lane closures for bus-stop installation through middle July

• Queen Street (Harvey to Guelph) — closed for reconstruction through Aug. 31

• Townline Road (Can-Amera to Avenue) — lanes closed daily through June

KITCHENER

• Bloomingdale Road (Bridge to Kraft) — Eastbound closure for paving and sidewalk repairs, through June 16

• Borden Avenue (Courland to CP Rail) — closed for utility work as part of light rail transit construction, through Dec. 31.

• Charles Street (Victoria to Ottawa) — closed through summer for LRT construction

• Highway 7/8 (Wilmot boundary to Courtland) — lane reductions through fall as widening work continues

• Highland Road (Patricia to Westmount) — lanes closed through Oct. 30 for road reconstruction

• King Street (Wellington to Victoria) — closed through fall 2016 for railway underpass construction for LRT

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• Manitou Drive (Fairway to Bleams) — lanes closed for road reconstruction; closes later in summer for roundabout construction through fall

• Margaret Avenue (at railway tracks) — closed through Dec. 31 for bridge construction

• Wellington Street (Walker to King) — closed through June 30 for reconstruction

WATERLOO

• Caroline Street (Erb to Allen) — sections closed through summer for LRT work

• Columbia Street (between Hagey and Phillip) — closed two weeks for LRT crossing work

• Highway 85 (between Kitchener and St. Jacobs) — lanes closed nightly for bridge work and paving, through June.

• King Street (Conestogo to Weber) — lane closed through Aug. 20 for road reconstruction

• Northfield Drive (Wissler to Bridge) — lanes closed for road construction, through July 20

• Northfield Drive (Weber to Conestogo) — lanes closed for LRT work (including Highway 85 ramps) through year end

• University Avenue (Bridge to Dale) — lanes closed for shoulder grading through June 25

NORTH DUMFRIES

• New Dundee Road (Robert Ferrie to Dodge) — daily lane closures through July 8 for water-main work.

• Spragues Road (Wrigley to Brant-Waterloo) — southbound lane closed through July 6, for road rebuilding