HomeMy WebLinkAboutItem 09 P41020 Channel 6 Firm Update Direct Appointment Contract AGENDA ITEM SUMMARY Meeting Date: 3/7/2016
Meeting Type: Regular Meeting
Staff Contact/Dept.: Molly Markarian/DPW Staff Phone No: 541-726-4611
Estimated Time: Consent Calendar
S P R I N G F I E L D C I T Y C O U N C I L Council Goals: Maintain and Improve Infrastructure and
Facilities ITEM TITLE: P41020 CHANNEL 6 FIRM UPDATE DIRECT APPOINTMENT CONTRACT
ACTION REQUESTED: By motion: TO APPROVE DIRECT APPOINTMENT OF AMEC FOSTER WHEELER FOR
THE CHANNEL 6 FIRM UPDATE ENGINEERING SERVICES CONTRACT IN THE AMOUNT OF $50,993 AND AUTHORIZE THE CITY MANAGER TO EXECUTE THE CONTRACT.
ISSUE STATEMENT: The City is proceeding with the next step towards implementing the recommendations of the 2014 Channel 6 Stormwater Master Plan, which includes improving the accuracy of the FEMA floodplain maps for the Channel 6 basin.
ATTACHMENTS: 1. Contract 2. Direct Appointment
DISCUSSION/ FINANCIAL IMPACT:
The City used a competitive Request for Proposals process in April 2013 for
professional engineering services to develop a Stormwater Master Plan that would
analyze the Channel 6 basin’s capacity and functions in order to inform and prioritize
the design and construction of future capital projects. The City ultimately selected
AMEC Environmental & Infrastructure, Inc. (AMEC) and executed a contract in July 2013. AMEC’s scope of work specified the development of hydrologic and hydraulic modeling for Channel 6 using the standards and guidelines established by FEMA to allow the model to be used to later convert the Channel 6 floodplain mapping from an approximate study with no established base flood elevations to a detailed study with base flood elevations established and floodplains and floodways accurately mapped. AMEC completed the Stormwater Master Plan in 2014, and the City is proceeding with the floodplain mapping updates for Channel 6. Direct appointment of AMEC to
provide the required specialized engineering services for this project would not
diminish competition as the firm has the institutional knowledge of the project, and it is
in the City’s and the public’s best interest to continue working with AMEC. In direct
appointing AMEC for this task, the City will accrue cost savings by building on
AMEC’s prior modeling work in the Channel 6 basin to prepare a complete submission
package to FEMA. In addition, cost savings will accrue from employing a direct appointment process in lieu of a separate formal solicitation. The fee for this phase of the project is estimated to be $50,993. Combined with the work under a previous contract ($144,403), the total contract value is below the state threshold of $250,000 for direct appointment contracts, as stipulated in OAR 137-048-0200 (1)(c)(A)(B)(C).
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ATTACHMENT 1: Channel 6 LOMR Scoping Map
CHANNEL 6
Existing HEC-RAS Base Model
Convert from SWMM to HEC-RAS
Existing
Detail
Study
HWY 126
I-5 FREEWAY
Q STREET CHANNEL
New HEC-RAS Model
C1630 AMEC Foster Wheeler Page 20 of 23
ATT 1, Page 20 of 23
Schedule - Channel 6 Floodplain Mapping LOMR
Date: February 3, 2016
Task and Activity Start Finish Feb Mar Apr May Jun Jul
Notice to Proceed 2/25/2016 l
1 Project Coordination 2/25/2016 7/31/2016 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1.1 Project kick-off meeting 2/28/2016 l
1.2 Progress billings Monthly l l l l l l
2 Reconnaisance and Data Review
2.1 Locate Sections for Ground Survey of Downstream Area 3/3/2016 3/9/2016 1
2.2 Field Reconnaissance of Downstream Area and Structures 3/10/2016 3/16/2016 1
2.3 Obtain Water Surface Data from the City 3/4/2016 l
3 Coordinate with City's Downstream Ground Survey 3/10/2016 3/21/2016 1 1
City Performs Downstream Survey 3/10/2016 3/21/2016
4 Downstream Flow Analysis 3/10/2016 3/30/2016 1 1 1
5 Hydraulic Floodplain & Floodway Modeling
5.1 Obtain LiDAR Ground Surface 3/4/2016 l
5.2 Expand base mapping 3/3/2016 3/16/2016 1 1
5.3 Create Downstream Hydraulic Model 3/24/2016 4/13/2016 1 1 1
5.4 Convert Upstream Hydraulic Model 3/17/2016 4/13/2016 1 1 1 1
5.5 Execute & Check Hydraulic Model 4/7/2016 4/20/2016 1 1
5.6 Calibrate Hydraulic Model 4/14/2016 4/20/2016 1
5.7 Map Floodplain Boundaries 3/31/2016 4/27/2016 1 1 1 1
5.8 Establish & Map Floodway 4/21/2016 5/4/2016 1 1
5.9 Hydraulic Model QA /QC 5/5/2016 5/9/2016 1
5.10Complete Digital Workmap and Certification 5/9/2016 l
6 Prepare Engineer Report 4/21/2016 5/9/2016 1 1 1
7 FEMA LOMR Submittal
7.1 Prepare FEMA MT-2 Forms 3/17/2016 4/13/2016 1 1 1 1
7.2 Assist City with Public Notification Requirements 3/17/2016 4/13/2016 1 1 1 1
7.3 Assemble submittal files 5/12/2016 5/16/2016 1
8 Respond to FEMA Review Comments 5/19/2016 (FEMA review)
9 Hydraulic Modeling of Priority CIP Sites
9.1 Model and Map Floodplain Boundaries for Priority CIPs 5/5/2016 6/1/2016 1 1 1 1
9.2 Model LOMR Floodway with Proposed CIPs 5/19/2016 6/1/2016 1 1
9.3 Prepare a Technical Memorandum on Findings 5/26/2016 6/13/2016 1 1 1
Legend:1 Period of activity by Amec Foster Wheeler
Period of occasional activity for Amec Foster Wheeler to respond to FEMA comments
Period of survey data measuring by City crews
2016
C1630 AMEC Foster Wheeler Page 21 of 23
ATT 1, Page 21 of 23
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