Proposal Documents. Peachblossom Branch Stream Restoration Project

Transcription

1 Proposal Documents Peachblossom Branch Stream Restoration Project Contract No The Commissioners of Cambridge Cambridge, Maryland January 2018 Proposal Date: February 20, :00 p.m. Local Time Dept. of Public Works 1025 Washington Street Cambridge, Maryland 21613

2 Request for Proposal Peachblossom Branch Stream Restoration Project Cambridge, Maryland The City of Cambridge Department of Public Works is soliciting sealed technical proposals showing the Statement of Qualifications (SOQ) for Best Value Design services to perform the design and permitting of improvements to the stream/drainage ditch at the headwaters of Cambridge Creek in Cambridge, Maryland known as Peachblossom Branch. The intent of the City of Cambridge is to award the Contract for these services to the responsible team of designers whose proposal is deemed to provide the best overall value for the City based on this RFP. Work performed under the contract shall include survey of existing conditions of Peachblossom Branch and adjacent shoreline/ditch bank areas, design improvements, construction plans and quantities for construction, cost estimates for installation, and permitting submission to MDE and USACE for the nearly 900 linear feet of upstream ditch cross section, as well as adjacent land improvements. Stabilization of the entire shoreline, reduction of erosion, phosphorus, nitrogen and suspended solids, and improvement of the wooded habitat adjacent to the stream are the goals of this project. The City of Cambridge has been awarded a Chesapeake Bay Regulatory and Accountability Program (CBRAP) grant administered by the Maryland Department of the Environment in the amount of $70,000 to provide permit-ready construction documents and specifications to complete all aspects of the work detailed herein. Consultants shall submit three (3) copies of the sealed proposal showing at a minimum: Approach to the project to ensure the project goals will be met. Include a timeline for the activities required (surveying of the property, engineering documents, permit preparation, and submittal and approval.) Provide any innovative engineering or construction practices that can be utilized to achieve the pollution reduction goals stated in the overview as well as minimizing the flooding effects on neighboring properties while minimizing the maintenance requirements in the future. Qualifications of previous work experience performed by key personnel for the design team members including stream restoration projects. Understanding of the scope of work, including timeline. Key personnel for the design firm. Itemized breakdown of fees associated with the project, including a final total to cover all items shown in the deliverables section. The proposal documents may be reviewed and/or picked up at the Department of Public works, 1025 Washington Street, Cambridge, Maryland 21613, or downloaded from the City

3 of Cambridge s website; There is no cost for the proposal request documents. All proposals are due at the Department of Public Works by Tuesday, February 20, 2018, at 3 p.m., at which time they will be opened. Three copies of each submittal shall be included. Any questions shall be sent via to Brent Jett, PE at bjett@choosecambridge.com prior to February 13, 2018 at 3pm. Any addendum will be posted on the City s website and acknowledgement of receipt shall be noted in the proposal. All work to be completed and delivered by December 31, 2018 Abstract The renovation and rehabilitation to Peachblossom Branch will be the focus of this project. This channel provides drainage from a stretch of Washington St (a Maryland State Highway Association roadway) that currently flushes through the ditch untreated. The Branch also picks up drainage from Cambridge International and the area of the old Phillips Packing House Campus that doesn t flow towards Cannery Stream. The condition of this branch has deteriorated over the years and is currently an exposed earth dirt channel simply conveying runoff to Cambridge Creek. The sides of the ditch are eroding with each rainfall event which adds sediment and nutrients to the headwaters of the Creek. If it weren t for the baffle box located on the Generation 3 boatyard that is the discharge for the culvert under Cedar St., the lower portions of Peachblossom Branch would be tidal. This large baffle box discharges directly to Cambridge Creek and also serves drainage from upstream sections of Cedar St. In order to provide improvements and allow cleaner water to enter the Creek, we are proposing shoreline protection as well as some channel improvements for Peachblossom Branch. Longer retention time of the water conveyed through this ditch will also add to cleaner water and a healthier channel flowing into the Creek in the future. Although the branch flows across 5 different properties, the City does not anticipate any obstacles in performing upgrades and improvements. Along with the soft-scape enhancements, the twin 71 x47 CMP discharge culverts under Cedar St. will be tabbed for replacement. It is anticipated that with the new conveyance, a smaller culvert will suffice for the replacement. Looking at the drainage area that is associated with Peachblossom Branch from the bottom, the current twin 71 x47 CMP discharge culverts need replacing. A few years ago, there was a sinkhole that presented itself at the boatyard entrance, not far from the baffle box at the head of the Creek. In order to repair this collapse, a new pipe that drains

4 the upper areas of Cedar St was installed. However, at the same time, the culvert under Cedar St that drains Peachblossom Branch was inspected. It was determined that the condition of the pipe is critical and needs replacing. A lot of debris and trash was discovered to be flowing through the culvert with the runoff water along with sediment from the upper portions of the branch. This condition has contributed to the deterioration in the pipes condition. The lowest portion of the branch is relatively flat which creates a low land marshy area. This is the section located between the State Farm Insurance agency and Cambridge Creek Automotive Center. Cat tails and phragmites are growing along the edges and thriving in the wet conditions. During the winter these areas remain wet, and it s only during the driest of times during the summer that the low laying areas of the branch is dry. Approximately 25 years ago a sewer separation project was completed in this area of Cedar St. At that time, a large baffle box was installed to control the discharge to the head of Cambridge Creek. During that construction, the culvert under Cedar St was installed. The branch is relatively flat and low lying for approximately the last 2/3rds of the branch between Cedar St and Virginia Ave. At that point, it rises upward towards Washington St. At the discharge point, the bottom elevation of the channel is below 0. At the upper end, the bottom of the channel is around 4.0; only 600 feet upstream. Based on the condition of the channel, the slope, the discharge from Washington St that flows through the channel, turbulent flow of over 2.5 fps occurs on more intense rain events. (Ones that seem to occur more frequently recently, and occurred as recently as September 19, 2016) This flow rate causes scouring and erosion along the channel and side slopes, not allowing vegetation to become established. The culverts discharging runoff from Maryland Ave (which flows under the warehouse located at 215 Washington St) and the unimproved section of Moreland Ave right-of-way appear to be in good working condition upon visual inspection. It will be at the headwall where these culverts discharge that the project focus will begin; heading to the baffle box on the north side of Cedar St. Objectives and Responsibilities In order to satisfy the terms of the funding for this design project, there are some basic tactics to be followed during the design. Since most of the runoff and rain events will flow through Peachblossom Branch utilizing the Open Channel system, it is anticipated to result in a reduction of 71lbs of TN and 14lbs of TP. For a portion of the runoff, and some of the larger events, there should be a wet pond/wetland system or micropool facility that will provide a reduction of 14lbs TN and 3lbs TP. This assumes that 20% of the flow will fully move through whatever of these systems is chosen to be implemented; allowing for treatment of the more intense rainfall events and treatment of the directly adjacent lands

5 more often. Due to the current conditions (bare earth) of the bottom channel and side slopes, it s not known the amount of sediment reduction that will be realized with this project. But it should be stated that it will be a drastic improvement and most likely greater than any calculator would show for the 75-acre drainage area and improvements to 900 linear feet of ditch. The City of Cambridge reserves the right to reject any or all bids and /or waive informalities or irregularities as it may deem best for its interest. Department of Public Works Cambridge, Maryland

6 Information for Consultants PROPOSALS will be received by the Commissioners of Cambridge (herein called the OWNER ) at Cambridge Department of Public Works, 1025 Washington Street, Cambridge, Maryland until 3:00 p.m. (EST) on Tuesday, February 13, The proposals will be opened in private after that time. CONSULTANTS are advised that all work described herein shall be completed if selected to complete the contract for the stream restoration work. The CONSULTANT that the City deems provides the best overall value based on the outline of the project will be awarded the contract to move forward. Each PROPOSAL must be submitted in a sealed envelope, addressed to the Commissioners of Cambridge, City of Cambridge Department of Public Works, 1025 Washington Street, Cambridge, Maryland Each sealed envelope containing a proposal must be plainly marked on the outside as PROPOSAL for Contract No , Peachblossom Branch Stream Restoration Project, and the envelope should bear on the outside the name of the lead CONSULTANT firm with their address. The Proposal Documents may be reviewed and/or picked up at the Department of Public Works, 1025 Washington Street, Cambridge, Maryland There is no cost for the proposal documents. All Proposals submittals must include three (3) copies of the Consultants SOQ s. Previous projects, teaming efforts, key personnel, as well as any other pertinent information shall be included in the PROPOSAL package. Task prices must be filled in, in ink or typewritten, and the pricing form must be fully completed and executed when submitted. The OWNER may waive any informalities or minor defects or reject any and all PROPOSALS. Any PROPOSAL may be withdrawn prior to the above scheduled time for the opening of PROPOSALS or authorized postponement thereof. No CONSULTANT may withdraw a PROPOSAL within 90 days after the actual date of the opening thereof. The PROPOSAL DOCUMENTS contain the provisions required for the design, permitting, and construction of the PROJECT. Information obtained from an officer, agent, or employee of the OWNER or any other person shall not affect the risks or obligations assumed by the CONSULTANT or relieve him from fulfilling any of the conditions of the contract. This project is being funded by a grant from the Chesapeake Bay Regulatory and Accountability Program (CBRAP) administered by the Maryland Department of the Environment. The overall intent is to secure a contract with a responsible CONSULTANT that can provide design, permitting, and cost estimates for construction of the reclamation of approximately 900 linear feet of non-tidal stream bed, shoreline restoration, and improvements to the adjacent areas to the branch. Stabilization of the shoreline, reduction of erosion, phosphorus, nitrogen and suspended solids, and lessening flooding potential to properties adjacent to the branch are the goals of this project. The OWNER may make such investigations as he deems necessary to determine the ability of the CONSULTANT to perform the WORK, and the CONSULTANT shall furnish to the OWNER all such information and data for this purpose as the OWNER may request. The OWNER reserves the right to reject any PROPOSAL if the evidence submitted by, or investigation of, such CONSULTANT fails to satisfy the OWNER that such CONSULTANT is properly qualified to carry out the obligations of the Agreement and to

7 complete the WORK contemplated therein. A conditional or qualified PROPOSAL will not be accepted. CONSULTANTS are advised that the work will be awarded to the CONSULTANT that is deemed to provide the best overall value for the OWNER based on the SOQ s submitted by the CONSULTANTS. Each CONSULTANT is responsible for inspecting the site and for reading and being thoroughly familiar with the PROPOSAL DOCUMENTS. The failure or omission of any CONSULTANT to do any of the foregoing shall in no way relieve any CONSULTANT from any obligations in respect to his PROPOSAL. Items to be included in the deliverables from the successful firm: Electronic copies of any conceptual plans and a summary of the permits needed for the implementation of the project. Survey plats of the existing conditions (property lines, ownership, contours, spot shots, wetlands, etc.) of Peachblossom Branch and adjacent areas that will be affected by any construction, minimizing impacts on private property. Jurisdictional Determination (JD) of the wetlands delineation. Design plans for the improvements to Peachblossom Branch Cost Estimate for the construction improvements Nutrient reduction calculations utilizing the current MDE spreadsheet. Permit application and required revisions to the appropriate agencies. An in-hand permit should be attained by the end of the project. Improvement design plans for replacing the discharge culvert under Cedar St, draining Peachblossom Branch to Cambridge Creek. Attachments: Sketches of site showing tidal, non-tidal, and forested areas to be improved.

8 Proposal Form Contract No Peachblossom Branch Stream Restoration Project Date TO: COMMISSIONERS OF CAMBRIDGE DEPARTMENT OF PUBLIC WORKS 410 ACADEMY ST. CAMBRIDGE, MARYLAND Gentlemen: Proposal of (hereinafter called CONSULTANT ), organized and existing under the laws of the State of doing business as (Insert a corporation, a partnership, or an individual as applicable.) to COMMISSIONERS OF CAMBRIDGE, MARYLAND (hereinafter call OWNER ). In compliance with your Advertisement for Proposals, CONSULTANT hereby proposes to perform all WORK for Contract No / Peachblossom Branch Stream Restoration Project in strict accordance with the POPOSAL DOCUMENTS, within the time set forth therein, and at the prices stated below. By submission of this PROPOSAL, each CONSULTANT certifies, and in the case of a joint PROPOSAL each party thereto certifies as to his own organization, that this PROPOSAL has been arrived at independently, without consultation, communication, or agreement as to any matter relating to his PROPOSAL with any other CONSULTANT or with any competitor. CONSULTANT hereby agrees to commence WORK under this contract on or before a date to be specified in the NOTICE TO PROCEED and to fully complete the PROJECT within 24 consecutive months thereafter. CONSULTANT acknowledges receipt of the following ADDENDUM:

9 PROPOSAL PRICING SCHEDULE Item No. Description Unit Price 1. Topographic and Land Survey of Site, including JD 2. Conceptual Designs 3. Permitting with MDE/DNR/Army Corps 4. Final Design Plans with Cost Estimates Total Price (Sum 1-4)

10 The undersigned CONSULTANT proposes to use the following named SUB-CONSULTANTS: The following Corporation is chartered in the State of. Witness Signature Title CORPORATE SEAL Firm Name Date: Business Address

11 Vicinity sketch showing the location of the branch in regards to Washington St and Cedar St. The building just south of the branch is Kustom Kitchens warehouse. The SHA catchbasin is located near the corner of the building, and the culvert may actually run under the building prior to discharging into the Branch. The building to the west is Souls Harbor Church of God. The branch crosses under Virginia Ave on its way north.

12 Headwall and culvert discharge located behind 215 Washington St. The overgrowth and lack of defined quality channel can be seen.

13 The lower portions of Peachblossom Branch where the slope lessens and the water ponds before crossing Cedar St. The bare earth and eroded areas are visible, along with the invasive Phragmites.

14 Drainage Area Map, approx.