Downtown alert! -- The final day of the Tour of Pennsylvania bicycle race involves a 50-mile Downtown circuit race at 5 p.m. The route covers Liberty Avenue, Sixth Avenue, Grant Street and Boulevard of the Allies. Street closings, bus re-routings and disruptions start in the early afternoon. If possible, ride the T.

Fourth of July -- "Smooth Operator" program will have state and local police looking for aggressive driving. Last year, state police reported 366 crashes and 10 fatalities over the holiday. Construction and traffic restrictions will be suspended on major highways, where possible. Holiday officially starts Thursday afternoon. Plan for heavy traffic next Sunday.

I-79, Allegheny County -- Traffic maintained in both directions on the northbound lanes over the 6.6-mile reconstruction zone between the Ohio River and I-279 Junction, Franklin Park.

Use caution around the Bridgeville Interchange, where the far right lane on I-79 north is closed for work on a new acceleration ramp from Route 50.

I-79, Greene County -- Single-lane restrictions in both directions between Mileposts 7 and 8 north of West Virginia line.

I-279 to North Hills -- HOV lanes closed for first phase of $11.3 million, 8-mile rehabilitation between East Ohio Street and Camp Horne Road interchange.

I-376/Parkway East -- No work this weekend because of numerous Downtown events. Rehabilitation work with lane restrictions are to resume tomorrow night.

Business Route 22, Monroeville/Wilkins -- Mostly off-peak repair, resurfacing work all summer long through the business district.

Route 22, Westmoreland County -- Separate widening projects east of Murrysville and east of New Alexandria mean lane closures, lane shifts and other disruptions.

Route 28, Allegheny Valley -- Around-the-clock, single-lane traffic restrictions lifted from Route 910 northbound to Mills Mall between 3 and 7 p.m. weekdays. Southbound, no lane closures permitted between 5 and 9 a.m.

Boulevard of the Allies, Oakland -- Closed outbound east of the Parkway East entrance for interchange reconstruction. Forbes Avenue down to a single lane into Oakland.

Fifth Avenue, East Liberty -- Reduced to a single lane 7 a.m. to 3:30 p.m. weekdays at railroad underpass between McPherson Boulevard and Kelly Street, part of the $3.1 million project covering 1.2 miles of Fifth Avenue/Route 8 and Penn Avenue.

Greentree/Cochran Road, Mt. Lebanon -- Lane restrictions 7 p.m. to 6 a.m. weekdays through late July for resurfacing between Royce and McMonagle avenues.

Lime Hollow Road, Penn Hills -- Single, alternating lane of traffic through late July between Frankstown and Coal Hollow roads to repair roadway washout, improve ride surface.

Marshall Avenue, North Side -- Lane closures 7 p.m. to 5 a.m. and 9 a.m. to 4 p.m. daily through late August for milling, paving and repairs between California Avenue and Brighton Road.

Parkway Center, Green Tree -- Ramp from Parkway Center Drive to the Parkway West/I-279 inbound restricted to one lane 9 a.m. to 3 p.m. daily for expansion dam repairs.

Racetrack Road, Meadowlands -- Johnson Road and Meadowlands Boulevard closed for casino-related construction. Detours posted but traffic is slow-moving at times.

South Main Street, West End -- Block-long stretch that's also Route 60 closed for roadway relocation and building new bridge to Steuben Street. Posted detours use Alexander and Dumas streets.

Birmingham Bridge -- One lane maintained in both directions on the southbound side. PennDOT currently replacing rocker bearings on the northbound side.

Port Authority: 412-442-2000 or www.portauthority.org.

PennDOT: 1-800-FIX-ROAD or www.dot.state.pa.us/district11 for Allegheny, Beaver, Lawrence counties; www.dot.state.pa.us for all other counties.

Pennsylvania Turnpike: www.paturnpike.com.

City Parking: www.pittsburghparking.com.

Biking: www.bike-pgh.org or www.pedalpittsburgh.org.

Airport: www.flypittsburgh.com.

Ride-sharing: www.commuteinfo.com.

Visiting? www.post-gazetteNOW.com.

PennDOT's local hotline: 412-429-6035.