laur laurel, northbound bw parkway, the right lane is getting by a work zone. weee a lit slow through that area. and 270 here, main and local n lanethbound and southbound, near montrose road nice and clear. guys? >> thank you, melissa. >>> a popular exercise spot is reopening this morning. you'll be able to return to the monta mt. vernon trail once it opens at 6:00 this morning. it had been closed earlier this week after large construction equipment damaged a bridge leading to that trail between memorial circle and the roosevelt bridge. national park ser says engineers came to check out the bridge, and it is safe for joggers and cyclists. >>> a new law will require more homeowners in montgomery county to install carbon monoxide detectors. this bill was first reported by the news 4 i-team this summer. the change means existing homes built before 2008 will need detectors under two conditions. those conditions, if they have a gas operated appliance or if thefz a they have ached garage. county already had a law requiring newly constructed homes have those tectors.