Motorists should be able to use the Keystone Avenue bridge at 80th Street and Woodfield Crossing within two weeks. The bridge was heavily damaged by Monday’s major rains, but the southbound lanes are stable and will be converted to two-way traffic as a short-term fix. A new traffic pattern should be in place in about 10 days. The city's Department of Public Works also is getting quotes for design and repair of the bridge, located along the major northbound thoroughfare. Design is expected to take about three weeks, and construction should take about six weeks, DPW spokeswoman Molly Deuberry said. The city expects to seek funding from the Federal Emergency Management Agency to cover repair costs.