Motorists advised to avoid the M1 at Wahroonga after bull injured in crashMotorists advised to avoid the M1 at Wahroonga after bull injured in crash...An injured bull caused huge traffic delays on one of Sydney’s major freeways in the city’s Upper North Shore. NSW Police said major delays were expected as a result. “As traffic delays are extensive, motorists are advised to consider using the Pacific Hwy through Hornsby instead, to join the M1 Pacific Mwy at Berowra,” Live Traffic NSW advised earlier on Tuesday morning. According to the website, there were major delays along the road, which backed up past the intersection of Alexandria Pde and Millewa Ave in Wahroonga. All lanes have since been reopened and delays remain for commuters up to North Wahroonga.