This report describes the progress made to date (October 19, 2005) on the SCERP project titled "Hydrology and hydraulics for the Tecate Creek corridor restoration," Victor Miguel Ponce, Principal Investigator.

Work Plan

The start date of the project was June 1, 2004. The initial work plan considered six phases, ending November 30, 2005: (1) Data compilation, (2) Hydrologic study (3) Hydraulic study, (4) Stream mechanics study, (5) Low-flow runoff study, and (6) Preparation of final report. A no-cost extension to July 31, 2006 has been granted.

Progress to date

Phase 1 of the project has been completed as of September 30, 2004. The following tasks have been accomplished: (1) Compilation of digital maps, (2) Delineation of basin topology, (3) subbasin areas, (4) channel lengths and slopes, (5) average land (terrain) slopes, (6) subbasin runoff curve numbers (infiltration data), and (7) subbasin event precipitation. Compiled data is available on the web at http://ponce.sdsu.edu.

Phase 2 of the project has been completed as of June 30, 2005. The following tasks have been accomplished: (1) Hydrologic modeling to determine flood discharges, (2) Hydrology report (3) Translation of the hydrology report into Spanish, (4) Webposting of the English and Spanish reports.

Phase 3 of the project is near completion. The following tasks have been completed to date: (1) Design of vertical alignment, (2) Design of horizontal alignment, and (3) Estimation of friction factors in the field. We are currently in the process of determining the 60 cross sections to run the water-surface profile program (HEC-RAS). This taks is very time-consuming and data-intensive.

Phase 4 of the project has not been started yet. We plan to start in January 2006.

Phase 5 of the project is ongoing. The following tasks have been completed to date: (1) Determination of minimum flows at Campo Creek near Campo, California, (2) Determination of annual precipitation at Campo Creek gaging station at Campo, California; (3) Reconnaisance field work in Campo valley, (3) A history of Campo valley hydrology, (4) Webposting of all findings of this phase.

Phase 6 (Preparation of Final Report), will start May 1, 2006.

Problems encountered

No major problems have been encountered.

Plans for next quarter/year

It is expected that Phase 3 and Phase 5 will be completed by December 2005. Progress is on schedule to execute this plan.

Prognosis for successful completion

It is expected that the project will be completed by July 2006. We have been working closely with the office of SEDUE in Tecate. The findings of our study will continue to underpin current development efforts by diverse stakeholders to restore and rehabilitate the Tecate River. In particular, the hydrology, hydraulics and stream mechanics studies are of vital importance for future policy, planning, and design.

Students hired

Fadi Elkhoury, a Civil Engineering graduate student, has joined the project in September 2004. He is working on a Master's thesis dealing with hydrologic modeling in the Tecate river watershed.

Hamzeh Ramadan, a Ph.D. graduate student, has also shown interest in joining the project. He is expected to participate in the more advanced modeling portion of the study (Phase 4: Stream mechanics).

The project employs Flor Perez, a Mexican citizen, as a research associate. She is a graduate of the Instituto Politecnico Nacional in Mexico City, holds a degree in computer engineering and has two year of experience in computational hydrology and hydraulics. She is responsible for field work, hardware and software support, web-based development, and project documentation.

Capacity built by this project