Mission Gorge Road: westbound at southbound on-ramp to state Route 125, traffic detoured into single lane, continuing for about 16 weeks, new freeway bridge construction.

State Route 125: southbound, junction with Route 52, long-term closure until June, drilling.

TUESDAY

Interstate 5: southbound, Manchester Avenue to San Diequito River bridge, 12:01 to 5:01 a.m., three left lanes, paving.

Interstate 15: southbound, Friars Road to Wightman Street, 9:30 a.m. to 1:30 p.m., one lane alternating, Bott dot replacement.

I-15: northbound, Rancho Bernardo Road to Via Rancho Parkway in Escondido, 11:01 p.m. to 4:01 a.m. Wednesday, bridge work.

I-15: southbound, at state Route 56, 11:01 p.m. to 4:01 a.m. Wednesday, right three lanes, road work.

Route 78: both directions, at Olive Street in Ramona, 8:01 a.m. to 4:01 p.m., one-way traffic control, earthwork.