PA ID# 111-91054; Casitas Municipal Water District
DSR ID# 12554; - Removal of Storm Debris from Spillway Channel
Citation: FEMA-1046-DR-CA; Casitas Municipal Water District; DSR 012554
Cross-Reference: Emergency Work, Debris Removal
Summary: As a result of the winter storms of March 1995, the spillway outlet works for the Casitas Municipal Dam became obstructed with debris. The obstruction caused the storm water to back up into the dam outlet tunnel, posing an immediate threat to the safety of the earthen dam structure. The subgrantee issued an emergency contract to remove the debris in a limited area to relieve the obstruction. After the initial debris removal was completed, a FEMA inspection team observed that the spillway channel below the initial work area was clogged with debris. DSR 12554 was prepared to cover the work completed to clear the area located adjacent to the spillway outlet and the work to be completed to clear the spillway channel. After a review by FEMA, the work to clear the spillway channel was deleted from the scope of work for DSR 12554. The Region concluded that the debris in the lower portion of the spillway was due to delayed maintenance and not a result of the disaster. The subgrantee has submitted a second appeal requesting that the work to clear the lower portion of the spillway channel be funded based on its contention that the debris in this portion of the spillway was deposited by the winter storms.
Issues: Is the removal of debris in the spillway channel eligible?
Findings: The documentation submitted does not quantify the amount of debris deposited by the disaster. However, FEMA recognizes that a portion of the debris present in the spillway channel was deposited by the disaster. Therefore, we have determined that it is reasonable to fund fifty percent (50%) of the proposed debris removal at a cost of $21,389. This funding is in addition to the $2,393 previously obligated.
Rationale: Debris removal from engineered channels and debris basins would normally only be eligible for funding if the applicant is able to demonstrate the pre-disaster level of debris. Although the amount of debris deposited by this disaster cannot be specifically determined, a reasonable estimate can be made based on the documentation submitted by the subgrantee.