Incipient gully upstream of Toyota plant, Tijuana, Baja California, Mexico.

Gully developed at site.

Gully developed at site.

Gully developed at site.

Gully developed at site.

Local erosion on banks of gully.

View of Toyota plant from watershed boundary.

Close-up of ongoing construction at Toyota plant.

View from downstream, showing plant under construction.

Close-up of ongoing construction at Toyota plant.

Close-up of ongoing construction at Toyota plant, showing earthwork.

Close-up of earthfill at Toyota plant, showing 15-m high fill at the downstream end.

Upstream view of B channel, Toyota plant, Baja California.

View of the plant from B channel.

View of B channel upstream, as it enters Toyota site.

Downstream view of B channel, as it enters Toyota site.

Detailed downstream view of B channel, as it enters Toyota site. .

View of Toyota site during construction, March 2003.

View of earthfill at Toyota site, looking upstream from confluence of streams.

Detailed view of C channel, downstream to Toyota site.

Detailed view of B channel, downstream to Toyota site.

Detailed view of culvert in B channel, downstream to Toyota site.

Site map showing fill in yellow with creeks in blue.

Site map showing problem points.