4/12/2016. Partnering to Rebuild after the Oso Landslide. By Janice Fahning, Megan Slater, Jason Smith, and Becki Kniveton

Transcription

1 Partnering to Rebuild after the Oso Landslide By Janice Fahning, Megan Slater, Jason Smith, and Becki Kniveton 1

2 SR 530 Slide Emergency Response Phase 2: Reconstruction/Restoration April 29, 2014 to Present Six projects totaling $43 million Emergency Temporary Berm Construction and Dewatering North Fork Stillaguamish River Pilot Channel SR 530 Access Road Maintenance and Traffic Control SR 530 Roadway Clearing SR 530 Emergency Roadway Reconstruction Streams/drainage restoration Flood protection Mitigation for environmental impacts SR 530 Incident Debris Removal 2

3 Emergency Temporary Berm Construction and Dewatering $300,000 U.S. Army Corps of Engineers and Snohomish County North Fork Stillaguamish River Pilot Channel $480,000 BCI Contracting Inc. Amphibious Excavation 3

4 SR 530 Access Road Maintenance and Traffic Control $3.4 million WSDOT and Granite Construction SR 530 Roadway Clearing Project $5.0 million 4

5 SR 530 Emergency Roadway Reconstruction Project $21.0 million WSDOT Atkinson - Jacobs SR 530 Incident Debris Removal Project $13.0 million 5

6 Procurement Traffic Impacts Schedule Earthwork Movement Community Impacts Environmental Impacts SR 530 Project Limits 6

7 Staging Staging 7

8 Staging Earthwork Movement 8

9 Earthwork Movement Earthwork Movement 9

10 Reducing Environmental Impacts Fish Passage Design with Tribal Agencies Wetland Delineation Stream Delineation Marbled Murrelet & Spotted Owl Assessment Coordination between WSDOT, County, and different contractors (IMCO, Granite, Atkinson) Reducing Impacts to Wetlands with design refinement (2:1 Slopes, Roadway Alignment, Roadway Elevation) Key Partners FEMA Snohomish County Public Works Parks Community Development Stillaguamish Tribe of Indians Washington Dept. of Fish and Wildlife US Army Corps of Engineers Washington State Ecology Atkinson Construction Jacobs Reducing Community Impacts One-on-one coordination with adjacent property owners. Local contractors and people hired from the surrounding community to work on the reconstruction and debris removal. Creation of on-site mitigation (instead of using proposed mitigation bank) reduced project costs, created open space for the County, and preserved highquality wetlands. 10

11 SR 530 Landslide Recovery Timeline Landslide March 22nd FEMA Rescue and Recovery March 22 nd to June 22 nd WSDOT Releases RFP April 29 th Contract Awarded May 30th DB Team Controls SR 530 June 16th Two-Lane Detour Opened June 20th Design & Reconstruct SR June 13 th to September 22nd 6 months Reconstructed SR 530 Open To Traffic September 22nd 3 months Comparison of Project Delivery Models Typical Design-Bid-Build Project Delivery Preliminary Design/NEPA 12 months Final Design/Permitting 12 to 18 months Road Construction 3-4 months Mitigation Construction 2 months years Endangered Species Act (ESA) Section 106 NEPA SEPA Section 404/401 Permitting Mitigation Plan/Design State and Local Permitting SR 530 Design-Build Project Delivery Environmental Construction and Commitment Monitoring Design and Construction 4 months After-the-fact Permitting/Mitigation 12 months Mitigation Construction 2 months 18 months Agency Coordination Culvert design/sizing Mitigation Coordination Emergency Permits Construction Monitoring ATF Section 404/401 Permitting Mitigation Plan/Design ATF Endangered Species Act Consultation NHPA Section 106 Consultation Snohomish County Local Permitting Environmental Construction and Commitment Monitoring 11

12 Emergency Permitting & Restoration SR 530 Restoration & Permitting Timeline Sept Sept March 2015 July March 2015 July 2014 Sept Sept. Oct 2015 Roadway open to public Restore roadside/staging areas Design mitigation site Complete regulatory permitting Construct Linda Lee McPherson Mitigation Site 12

13 Emergency Permitting & Restoration Proposed Mitigation 13

14 Wetland, Stream, & Buffer Mitigation soil stockpile area existing wetland Endangered Species Act Review Potential Marbled Murrelet/Northern Spotted Owl Habitat Drains to Stillaguamish River (salmon-bearing stream) Marbled Murrelet Nesting Season: April 1 Sept. 23 WDFW In-Water Work Window: August 1-15 Northern Spotted Owl Early Nesting Season: March 1- July 15 14

15 SR 530 Landslide Recovery Timeline Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec X X X X X X X X X X X X X X X X X X X X X X construction planting X Allowed Allowed with restrictions/not likely to adversely affect Likely to adversely affect Construction Grading and Soil Amendment 15

16 Stream Restoration McPherson Mitigation Site 16

17 Environmental Successes/Design Build Innovations Collaboration focused on the community and environment allowed flexibility by the contractor, designer, and agencies as the project progressed Right-sizing culverts and the onsite wetland and stream mitigation site saved money, restored streams and wetlands, is a memorial to Linda McPherson, and was transferred to Snohomish County Parks as a protected natural area Extraordinary construction water quality management by Atkinson Reuse of excavated soil on Snohomish County s White Horse Trail reconstruction Contractors shared security costs Successful Project Outcomes Completed reconstruction of SR 530 in just 6 months after the landslide construction lasted only 13 weeks. Opened two-way temporary road within days of contract award. Coordinated, designed, and constructed six fish passage culverts. Designed and restored wetlands at two staging areas. Designed, permitted, and constructed the Linda Lee McPherson wetland and stream mitigation site on 36.3 acres. Saved WSDOT $5.4 million over the engineer s estimate. 17

18 McPherson Mitigation Site The goal of putting a high price tag on the use of the existing mitigation site was to incentivize the DB to minimize impacts to aquatic resources but it had an unexpected but extraordinary result. The DB decided that it was a better value to purchase and develop their own mitigation site, McPherson. This is unprecedented in my experience with the agency and it resulted in the acquisition and protection of a really high quality property in the immediate impact area, the McPherson site. -Linda Cooley, WSDOT Environmental Tips to share Start planning now Bringing your A Team Assign areas of responsibility Have extra people on hand Start tracking daily logs, dollars expended, labor hours. Communicate, Communicate, Communicate Use internal and external resources Recognize and tend to emotions Give grace to people 18

19 Questions? Contact Info: Janice Fahning Snohomish Co. Jason Smith Jacobs Megan Slater Atkinson Construction Becki Kniveton Jacobs 19