Reach 4B and Eastside Bypass

Reach 4B of the San Joaquin River is a 32.5-mile stretch that begins at the Sand Slough Control Structure and extends to the confluence of the Eastside Bypass and San Joaquin. Reach 4B has been further divided into two subreaches; Reach 4B1 from the Sand Slough Control Structure to the Mariposa Bypass, and Reach 4B2 from the Mariposa Bypass to the confluence of the Eastside Bypass and the San Joaquin River.

Reach 4B and Eastside Bypass project consists of incorporating new floodplain and related riparian habitat to ensure conveyance of at least 4,500 cfs through Reach 4B, modifications to ensure fish passage, and modifications in the Eastside and Mariposa bypass channels to support anadromous fish migration.

We have recently released a draft Initial Study/Environmental Assessment for Eastside Bypass Improvements here.

NameCategoryDateYearKindSizeTags
SJRRP Eastside Bypass EA-IS Extended Comment PeriodNews ReleasesJanuary 5, 2018pdf0.2 MiB
Eastside Bypass Improvements Project IS-EA Public Draft 120617 3 Of 3 - Appendices ForWebReach 4BDecember 28, 2017pdf4.2 MiB
Eastside Bypass Improvements Project IS-EA Public Draft 120617 Part4Reach 4BDecember 28, 2017pdf0.4 MiB
Eastside Bypass Improvements Project IS-EA Public Draft 120617 Part3Reach 4BDecember 28, 2017pdf6.5 MiB
Eastside Bypass Improvements Project IS-EA Public Draft 120617 Part2Reach 4BDecember 28, 2017pdf6.5 MiB
Eastside Bypass Improvements Project IS-EA Public Draft 120617 Part1Reach 4BDecember 28, 2017pdf6.2 MiB
SJRRP Eastside Bypass Draft EA-IS ReleasedNews ReleasesDecember 28, 2017pdf0.2 MiB
EBIP IS-EA Public Draft 120617 3 Of 3 - Appendices ForWebReach 4BDecember 11, 2017pdf4.2 MiB
EBIP IS-EA Public Draft 120617 Part4Reach 4BDecember 11, 2017pdf0.4 MiB
EBIP IS-EA Public Draft 120617 Part3Reach 4BDecember 11, 2017pdf6.5 MiB
EBIP IS-EA Public Draft 120617 Part2Reach 4BDecember 11, 2017pdf6.5 MiB
EBIP IS-EA Public Draft 120617 Part1Reach 4BDecember 11, 2017pdf6.2 MiB
R4BFinalNOP090309Reach 4BJuly 6, 20172009pdf0.9 MiB
Federal Register/Vol. 74, No. 173/Wednesday, September 9, 200946453 /NoticesReach 4BJuly 6, 20172009pdf54 KiB
NOP20101122Reach 4BJuly 6, 20172010pdf0.4 MiB
Federal Register/Vol. 75, No. 224/Monday, November 22, 201071145 /NoticesReach 4BJuly 6, 20172010pdf61 KiB
Reach 4B, Eastside Bypass, andReach 4BJuly 6, 20172011pdf5.3 MiB
Appendix-F 508Reach 4BJuly 6, 20172015pdf8.3 MiB2015
Appendix-E 508Reach 4BJuly 6, 20172015pdf0.5 MiB2015
Appendix-D 508Reach 4BJuly 6, 20172015pdf0.6 MiB2015
Appendix-C 508Reach 4BJuly 6, 20172015pdf42 KiB2015
Appendix-B 508Reach 4BJuly 6, 20172015pdf3.5 MiB2015
Appendix A 1D Cross SectionReach 4BJuly 6, 20172015pdf2.2 MiB2015
Reach 4B, Eastside Bypass, andReach 4BJuly 6, 20172015pdf3.4 MiB2015
Attachment 7Reach 4BJuly 6, 20172015pdf0.2 MiB2015
08 App A Attachment 6 SJRRP-4B-Revegetation 508Reach 4BJuly 6, 20172015pdf0.8 MiB2015
Attachment 5Reach 4BJuly 6, 20172015pdf0.6 MiB2015
Attachment 4Reach 4BJuly 6, 20172015pdf0.3 MiB2015
05 App A Attachment 3- Drawings 508Reach 4BJuly 6, 20172015pdf25.6 MiB2015
Attachment 2Reach 4BJuly 6, 20172015pdf12.5 MiB2015