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BakerAECOM, LLC members:   Michael Baker Jr., Inc.; AECOM; Taylor Engineering, Inc.; and Gannett Fleming, Inc.  

City of Vallejo, Solano County EAR Scope Presentation November 4, 2010 Conference Call / Web Presentation ATTENDEES: Sam Kumar, Senior Civil Engineer, Dept. of Public Works (City of Vallejo) Enayat Haidari (City of Vallejo)

Mark Delorey, Lee Brancheau (Baker)  PURPOSE: Discuss FEMA FY10 Flood Study Project Scope within Vallejo, Solano Cty. Mark Delorey presented background regarding the 1983 studies, and the 2009 DFIRM which had no new H&H. Lee Brancheau then discussed the proposed scope of the FY10-funded FEMA flood studies (7 miles worth of new H&H models on the Rindler Creek, Tributary 2 to Rindler Creek, North Fork Rindler Creek, South Fork Rindler Creek, Lake Dalwigk / Lemon Street Canal, and Austin Creeks).

The scoping map was presented to Sam Kumar and Enayat Haidari followed by a discussion of the eventual PMR.

Lee Brancheau discussed the proposed timeline for the engineering studies, with an estimated preliminary date of December 2011. The effective date for the EAR studies was estimated to be two years from scope finalization, most likely December 2012.

Sam Kumar and Enayat Haidari provided comment on each of the proposed stream reaches for the EAR. The scoping map was marked up by Lee Brancheau during the web presentation. Figure 1 below shows the notes taken during the meeting.

Specific issues:

Rindler Creek: Per Sam and Enayat, the Rindler Creek reach can be cut back to the upstream extent of the existing SFHA. This also removes Tributary 2 to Rindler Creek since this area is unlikely to be developed.

Blue Rock Springs Creek:

Blue Rock Springs Creek needs to be restudied. The stream channel no longer exists above ground. The upstream area at the headwaters by the Elks Lodge east of I-80 will be redeveloped. West of I-80, a mobile home park covers the old stream channel. Undeveloped land east of I-80 between Blue Rock Springs Creek and S. Br. Rindler will also be developed.

North Fork Rindler Creek:

The stream channel no longer exists on North Fork Rindler Creek. Complaints have come in from the residential area at the most upstream reach north of State Hwy. 37 since the mapping appears to be inaccurate in this area.

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BakerAECOM, LLC members:   Michael Baker Jr., Inc.; AECOM; Taylor Engineering, Inc.; and Gannett Fleming, Inc.  

South Fork Rindler Creek:

The stream channel no longer exists on the upstream reach of South Fork Rindler Creek. Compliants have come in regarding the residential area in the headwaters where the stream has been culverted. Residents never get flooded and want to be removed from the mapping.

Austin Creek:

Sam and Enayat mentioned that the Vallejo Sanitation and Flood Control Department (VSFCD) did some rough hydrologic analyses on Austin Creek and have details on where the channel was either moved, filled, or culverted. Most of the stream channel no longer exists above ground. The study reach will remain the same.

Glen Cove:

Sam noted that the Zone VE area south of Glen Cove Parkway and west of Camino Del Sol needs restudy. The upstream studied reach is now covered by what appears to be a commercial facility. Mark Delorey mentioned that this area is covered by the ongoing CCAMP coastal study, which was later confirmed by speaking with Kris May, the lead for the North Bay Coastal study.

Lake Dalwigk / Lemon Street Canal:

The proposed study reach in this area is correct. Highest concern is the mobile home park along the canal, just west of I-80.

Data Availability:

Sam and Enayat suggested speaking with Rolf Ohlemutz at VSFCD to obtain stormwater and culvert information for all of the scoped reaches, as well as the new hydrology information for Austin Creek to see if it is useful. Mr. Ohlemutz was at the early 2010 scoping meeting with Eric Simmons, Mark Delorey and Jim DeAngelo.

Availability of GIS base map data was also discussed. Vallejo subcontracts out their GIS tasks. Lee Brancheau mentioned that having an up-to-date transportation layer would help with the new EAR as well as provide accurate street naming on the new panels. Updated NAIP 2009 orthophotography will be used as the base map for the updated panels.

Action Items:

Lee Brancheau will distribute scoping map markup (Figure 1)

Sam Kumar will contact VSFCD and let them know to expect our request for structure and hydrology data. Sam emailed Rolf VSFCD shortly after the meeting.

Mark Delorey will investigate whether the CCAMP study will cover the Glen Cove area at issue.

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Figure 1 – Location of Areas of Concern for the City of Vallejo within Proposed FY10 Scope

Blue Rock Springs