(Portland, OR) -- A huge sinkhole remains in a southeast Portland street three months after it opened. The sinkhole is located on Southeast Yamhill Street between 74th and 76th avenues. It's covered with huge steel plates. The Portland Bureau of Environmental Services says it's 50-feet-wide and 10-feet-deep. It affects a 1914-era sewer pipe and a maintenance hole. Supply chain delays have slowed production of a replacement liner. It's currently being delivered. The 340-foot-long liner will take several weeks to install after it arrives.