(UPDATE) MANILA, Philippines — Floods swamped parts of Quezon City on Saturday after an hour of record-breaking rainfall that exceeded levels seen during Trolical Storm 'Ondoy' in 2009, the local government said. The local government confirmed that 36 out of 142 villages were affected by waist-deep to chest-deep floods, especially in Districts 1, 3, and 4. Rainfall intensity in Quezon City reached 121 millimeters in just one hour, based on a preliminary analysis by the UP Resilience Institute and the UP NOAH Center, using rain gauges, information from the Philippine Atmospheric Geophysical Astronomical Services Administration (Pagasa) and the city’s IRISEUP system. They said the amount of rainfall was significantly higher than Ondoy’s peak of about 90 millimeters during its one-hour rainfall, which the city described as “phenomenal” or extraordinary. City officials admitted that the volume of rainwater overwhelmed drainage systems, resulting in flooding even in areas that were not usually submerged. The local government said that despite this, floodwaters receded quickly due to year-round declogging operations by the Department of Engineering, while cleanup teams were deployed to remove debris swept by the flood. Authorities vowed to push forward with the full implementation of the Quezon City Drainage Master Plan as a long-term solution, emphasizing that flood control projects must undergo thorough study and review before being carried out. At the time of the downpour on Saturday afternoon, the Metropolitan Manila Development Authority (MMDA) Flood Control and Information Center reported waist-deep water at Commonwealth Avenue near the UP Gym eastbound and at the Quezon Avenue–EDSA Tunnel in both directions, making both areas not passable to all types of vehicles. Earlier in the day, the Quezon City government confirmed waist-deep floods at: -A. Rodriguez Avenue corner D. Muñoz Avenue and Banlat Road fronting Rebecca Homes III in Barangay Tandang Sora -Anonas corner Savemore in Barangay Sikatuna Village -Holy Spirit Drive in Barangay Holy Spirit -Philcoa corner Masaya in Barangay Old Capitol Site -Fatima Street in Barangay San Vicente -Lagusan and Tabing Ilog Streets in Kaingin Bukid, Barangay Apolonio Samson. Knee-deep flooding was reported at multiple locations, which made them impassable to light vehicles. These are in: -C5 Katipunan near Ateneo northbound -C5 Katipunan Garcia in both directions -Commonwealth Technohub westbound -Commonwealth Winston -Commonwealth Bitoon westbound EDSA Mother Ignacia southbound -Araneta –Maria Clara -Elliptical Road –Kalayaan Avenue -Mindanao Avenue fronting Landcom Village and Tandang Sora Avenue in front of Metrobank in -Riverside Street and Alley 1 Pook 2 in Barangay San Vicente and -Antoinette and Christine Streets in Parkway Village, Barangay Apolonio Samson. Leg-deep water was reported at Kalayaan Gate 3 in Barangay Central and chest-deep at Lower Mangga in Barangay Katipunan, which was not passable to any vehicles. Meanwhile, 8 to 9-inch floods were reportes but remained passable to vehicles at: -Commonwealth Ever eastbound and Quezon Avenue near the Lung Center, along EDSA Dario -EDSA Centris service road -EDSA Balintawak -EDSA Muñoz -EDSA West Avenue -EDSA Kamuning intersection -Commonwealth Doña Carmen -Quezon Avenue Elliptical Road -EDSA corner Corregidor in Barangay Ramon Magsaysay -Elliptical Road corner East Avenue Medical Center -Malumanay corner Maalalahanin in Barangay Teachers Village West and -Rajah Matanda in Barangay Villa Maria Clara. Neck-deep floods were reported in Barangay Pinyahan (Post Office, NIA Road) while residents in Barangay Apolonio Samson (Tabing Ilog St., Kaingin Bukid) were forced to climb their roofs as waters rose. The MMDA also issued a traffic advisory announcing the temporary closure of the U-turn slot and left turn at the Katipunan–CP Garcia intersection after traffic lights were damaged by heavy rains. In addition, the U-turn slot in front of UP Town Center was closed to ensure the smooth flow of traffic on the northbound and southbound directions. The Quezon City government deployed additional QCity buses stationed in front of City Hall for those bound for Fairview and offered free rides across eight QCity Bus Service routes to ensure safe and convenient travel for commuters. In Sept. 2009, Tropical Storm Ondoy  brought an unusually high volume of rain, which generated high flooding in the Marikina River, causing extensive flooding in the Metro Manila and neighboring Rizal province.