Flood Protection Capital Improvements
Total Page:16
File Type:pdf, Size:1020Kb
Flood Protection Capital Improvements FLOOD PROTECTION OVERVIEW West Valley Watershed The District manages approximately 800 miles of creeks in Major Capital Improvements Completed Santa Clara County to meet the Board’s Ends Policy E–3, • Calabazas Creek from Guadalupe Slough to Wardell “There is a healthy and safe environment for residents, Road businesses and visitors, as well as for future generations.” • San Tomas Creek from Southern Pacific Railroad to The district’s goals are further defined in E-3.1, “Provide Cabrillo Avenue natural flood protection for residents, businesses, and • Saratoga Creek from San Tomas Creek to visitors” and E-3.2, “Reduce potential for flood damages.” Lawrence Expressway The 800 miles of creeks are located in five watersheds: Lower Peninsula, West Valley, Guadalupe, Coyote, and Major Capital Improvements Identified in the CIP Uvas/Llagas. The District administers an asset management • Sunnyvale East and West Channels (Clean, Safe Creeks) program for its flood protection infrastructure. The program includes a schedule for maintenance and Guadalupe Watershed rehabilitation to ensure that each facility functions as Major Capital Improvements Completed intended over its useful life. • Alamitos Creek • Guadalupe River–Lower from Alviso Marina to Fifty years of working for flood protection has significantly Interstate 880 reduced the intensity and frequency of flooding in Santa • Guadalupe River–Downtown from Interstate 880 to Clara County. By 2005 the District had provided flood Interstate 280 protection to 93,253 of the 166,526 parcels in the flood plain and another 6,642 have been protected since then. Major Capital Improvements Identified in the CIP • Guadalupe River–Upper, Interstate 280 to Blossom Hill Road (Clean, Safe Creeks/Safe, Clean Water) The voters in Santa Clara County have supported the District’s flood protection efforts by approving benefit Coyote Watershed assessment funding in 1982, 1986, and 1990. Voters Major Capital Improvements Completed approved a special parcel tax in 2000 and 2012 to fund • Coyote Creek from S.F. Bay to Montague Expressway the continuation of the District’s flood protection capital • Lower Penitencia Creek from Coyote Creek to improvements, specifically, moving upstream from the Tasman Drive completed downstream work or starting new work on • Lower Silver Creek from Coyote Creek to creeks that have not had flood protection work. Interstate 680 (Reaches 1-3) • Wrigley Ford Creek Lower Peninsula Watershed Major Capital Improvements Completed Major Capital Improvements Identified in the CIP • Adobe Creek from El Camino to West Edith Ave. • Berryessa Creek from Calaveras Boulevard to Old • Barron Creek Piedmont Road (Clean, Safe Creeks) • Matadero Creek from Palo Alto Flood Basin to Barron • Berryessa Creek from Lower Penitencia Creek to Creek Calaveras Boulevard • Stevens Creek from Highway 101 to Homestead Road • Coyote Creek Montague Expressway to Interstate 280 Major Capital Improvements Identified in the CIP (Clean, Safe Creeks) • Lower Silver Creek from Interstate 680 to Lake • Palo Alto Flood Basin Structure Improvements Cunningham (Reaches 4, 5, and 6) • Permanente Creek from S.F. Bay to Foothill • Upper Penitencia Creek from Coyote Creek to Expressway (Safe, Clean Water) Dorel Drive (Safe, Clean Water) • San Francisquito Creek from S.F. Bay to Searsville Dam (Clean, Safe Creeks/Safe, Clean Water) III-PB :: 2018–2022 Five-Year Capital Improvement Program 2018–2022 Five-Year Capital Improvement Program :: III-1 Flood Protection Capital Improvements Uvas/Llagas Watershed The voter approved Safe, Clean Water program will provide Major Capital Improvements Completed funding for some of the highest priority unfunded projects • Llagas Creek–Lower from Pajaro River to Buena including: Vista Road • Permanente Creek, San Francisco Bay to Foothill Expy. • Uvas Creek • San Francisquito Creek, SF Bay to Middlefield Road • Sunnyvale East & West Channels Major Capital Improvements Identified in the CIP • Upper Guadalupe River, I-280 to Blossom Hill Road • Llagas Creek Capacity Restoration from Buena Vista • Upper Penitencia Creek, Coyote to Dorel Drive Road to Pajaro River • Berryessa Creek, Calaveras Blvd. to Interstate 680 • Llagas Creek–Upper, Buena Vista Road to Llagas Road • Coyote Creek, Montague Expy. to Interstate 280 (Clean, Safe Creeks/Safe, Clean Water) • Upper Llagas Creek, Buena Vista Rd. to Llagas Rd. • San Francisco Bay Shoreline - Design and Partial Multiple Watersheds Construction of EIA 11 and Planning for other EIAs Major Capital Improvements Identified in the CIP An implementation schedule for the Safe, Clean Water • San Francisco Bay Shoreline (Safe, Clean Water) projects is available in Appendix E. • Watershed Asset Rehabilitation Program Delays in the federal funding for many of the USACE PRIORITY PROCESS AND FINANCIAL projects have extended the schedules beyond the dates ANALYSIS committed by the District. Therefore, the District is A rigorous priority setting process was conducted to evaluating the option of proceeding with the local funding ensure that the new flood protection projects proposed option on several of these projects. Construction on a to be added to the Fiscal Year 2018-22 CIP reflect the number of flood protection projects have been delayed Board’s priorities. The priority criteria used are included in due to either Federal funding issues or delays in receiving Appendix A. environmental permits. A financial analysis of the Watershed and Steam The following high priority flood protection projects, Stewardship Fund and Safe, Clean Water Fund, the funding unfunded or partially funded, are of major concern to meet sources for flood protection capital improvements, was the Board’s Ends Policy E–3, “There is a healthy and safe conducted to determine if there are limitations to funding environment for residents, businesses and visitors, as well all of the projects proposed for the Fiscal Year 2018-22 CIP. as for future generations.” A potential funding shortfall at the end of the Safe, Clean Water Program has been identified. Staff is working to Partially Funded and Unfunded CIP Projects address this issue. Results of the prioritization process and • Coyote Creek, Montague Expressway to Interstate 280 financial analysis are summarized in Appendix B. (Construction is unfunded) • San Francisco Bay Shoreline Project - except EIA 11 The watersheds have benefited from higher than projected (Design and Construction is unfunded) property tax revenue in fiscal years 2013 through 2016. The • San Francisquito Creek 100 year flood protection District will also receive $55 million from DWR to assist upstream of Highway 101 with construction of Lower Silver, Lower Berryessa, Upper • Upper Berryessa Creek, Interstate 680 to Old Piedmont Berryessa, and Lower Penitencia. Road (unfunded; $20 million) • Berryessa Creek, Lower Penitencia Creek to Calavers Blvd--Phase 3 and Tularcitos Creeks (construction is unfunded $50M) • Upper Llagas, Reach 14 III-2 :: 2018–2022 Five-Year Capital Improvement Program Flood Protection Capital Improvements The following table is a project funding schedule for flood protection capital improvements resulting from this year’s priority process and financial analysis. Detailed information for each project can be found in this document on the following pagesThe fo llinow theing torderable is presenteda project fun indi nthisg sc htable.edule fTheor flo chartod pro alsotectio identifiesn capital im partiallyprovemen fundedts resultin projectsg from th iands yea estimatedr's priority p runspentocess and financial appropriationanalysis. Detail efromd info FYrm a2016-17.tion for each project can be found in this document on the following pages in the order presented in this table. The chart also identifies partially funded projects and estimated unspent appropriation from FY 2016-17. Flood ProtectionFlood Protection Capital Capital Improvements Improvements ($K) ($K) Project Through FY17 PROJECT NAME FY17 FY18 FY19 FY20 FY21 FY22 FY23-32 TOTAL Number FY16 Unspent LOWER PENINSULA WATERSHED 10394001 Palo Alto Flood Basin Tide Gate Structure Improvements 1 ,200 - 234 458 - - - - - 1,658 10244001s Permanente Creek, SF Bay to Foothill Expressway 6 2,569 12,105 178 16,906 1,028 - - - - 92,608 10284007s San Francisquito Creek, SF Bay thru Searsville Dam (E5) 4 4,882 536 575 7,338 5,224 997 - - - 58,977 WEST VALEY WATERSHED 20194005 San Tomas Creek, Quito Road Bridge Replacement 5 63 - 1 124 - - - - - 687 26074002 Sunnyvale East and West Channels 2 6,177 - 10,705 4,931 18,831 18,303 117 122 - 68,481 GUADALUPE WATERSHED 26154001s Guadalupe River–Upper, I-280 to Blossom Hill Road (E8) 1 12,881 8,615 21,446 6,544 22,503 18,736 8,222 3,529 3,021 184,051 COYOTE WATERSHED 26174041s Berryessa Creek, Calaveras Boulevard to Interstate 680 4 5,403 14,747 5,812 - - - - - - 60,150 40174004s Berryessa Ck, Lower Penitencia Ck to Calaveras Blvd 8 2,417 27,176 7,468 - 20,014 2,441 2,447 426 - 134,921 26174043 Coyote Creek, Montague Expressway to Interstate 280 1 1,486 - 632 - - - 1,021 852 23,227 36,586 40264011 Cunningham Flood Detention Certification 4 ,458 3,829 534 1,674 649 124 - - - 10,734 Lower Penitencia Ck Improvements, Berryessa to Coyote 40334005 6 ,800 2,801 1,781 4,815 12,252 562 292 304 215 28,041 Cks. 40264007s Lower Silver Creek, I-680 to Cunningham (Reach 4-6) 9 6,788 2,471 348 1,981 589 320 - - - 102,149 40324003s Upper Penitencia Creek, Coyote Creek to Dorel Drive 1 7,899 - 4,213 - 10,536 6,134 15,232 8,650 8,412 66,863 UVAS LLAGAS WATERSHED Llagas Creek–Lower, Capacity Restoration, Buena Vista 50284010 7 ,046 - 2,475 - - 2,014 3,245 2,927 127 15,359 Road to Pajaro River 26174051s Llagas Creek–Upper, Buena Vista Avenue to Llagas Road 1 04,552 2,353 42,342 1,146 25,905 24,281 12,892 426 443 171,998 MULTIPLE WATERSHEDS 00044026s San Francisco Bay Shoreline (E7) 2 4,798 8,166 9,038 2,721 2,913 4,543 4,434 730 - 48,305 62084001 Watersheds Asset Rehabilitation Program 2 ,728 787 608 11,047 4,073 1,999 10,786 14,701 20,730 66,851 TOTAL 652,647 83,586 108,390 59,685 124,517 80,454 58,688 32,667 56,175 1,148,419 The following table shows funding requirements from each funding source for flood protection capital improvements.