The Ditch - The Dam

I could see nothing more of the Santa Cruz river along 84/285, so I drove along the Santa Cruz road searching for some place the river was visible. I found it at the Branch Bridge on Route 106.

Upstream, it’s the obvious continuation of the river seen in town. Downstream, there’s a concrete faced dam that sends water off to the left where there are four gates. Three, closed now, divert the water into the local ditch. The other, at a right angle and open now, sends the water back into the river.

The water runs hidden in a culvert under the access road to emerge a bit downstream in a natural ditch shrouded by trees.

It continues in that dirt lined ditch for some feet until it approaches another concrete dam.

This is the true beginning of the ditch. When the gate to the right is down, water backs up in that dirt ditch until it reaches the slot in the concrete. At that point water enters the ditch proper.

When the ditch is not in use, like now, the gate is raised, and the water enters a canal that takes it back to the river.

In normal times the river remains as placid here as it is in town.

When water levels are high, especially when it rains in summer, the water first backs up into a spillway behind the dirt ditch.

Water can also back up behind the dam, as it must have done last summer.

This dam is relatively new. The Santa Fe New Mexican for 15 May 1989 said it had been dedicated that week and replaced an earlier earthen dam at the same location.

Photographs:
1. Santa Cruz river at the Branch Bridge, looking upstream, 27 January 2012.

2. Diversion gates on Santa Cruz dam, 10 February 2012.

3. Entry point for water from the dam into the transit ditch, 10 February 2012.

4. Control point of entry for the local acequia, 10 February 2012.

5. Control point of entry with local acequia reach downstream, 10 February 2012; the great mound facing 84/285 is just visible in the back.

6. Return channel for water not used in the local acequia, 10 February 2012; the tree has been cut and left blocking the movement of high objects into the Santa Cruz river.

7. Santa Cruz river downstream from the return channel, 10 February 2012.

8. Spillway for the transit ditch, 10 February 2012; the light bank in the center back is the hump separating this from the actual ditch. The culvert in #3 is under it.

9. Land between the dam and the river seen in #1, 27 January 2011.