The URL can be used to link to this page

Home My WebLink AboutPlan Change Request 6.7.2022NOTE: If enclosures are not as noted, please contact us at (508) 255-6511 TRANSMITTAL To: Yarmouth Conservation Commission Attn: Heidi Hudson Yarmouth Town Hall 1146 Route 28 South Yarmouth, MA 02664 Date: 6/9/2022 Project No. C19505.00 Via: 1st Class Mail Pick up Delivery Fed Ex Phone: Fax: Subject: Plan Change Request Proposed Culvert Reconstruction Town of Yarmouth Sea Gull Beach Road Yarmouth, MA DEP File No: SE 83-2284 OOC Book: 34207, Page: 80 No. of pages to follow: Plans Copy of Letter Specifications Other We are sending the following items: Copies Date No. Description 8 6/9/2022 Plan Change Request Letter 8 5/19/2022 Plan Change Request Email 8 6/9/2022 Site Photos 8 6/7/2022 Coastal Engineering Co., Inc. As-Built Plan of East Culvert These are transmitted as checked below: for approval for your use as requested for review & comment Remarks: Enclosed please find copies of the plan change request letter and revised plans for the above referenced project. If you have any questions, please contact our office. cc: Mass. DEP/SERO – Wetlands Town of Yarmouth Waterways Amanda Lima, Town of Yarmouth By: Carla Davis D:\DOC\C19500\19505 - No physical folder\Permitting\Ecological Restoration NOI\Plan Change Request 6-9-22\Transmittal Template.doc June 9, 2022 C19505.00 Yarmouth Conservation Commission Hand Delivery Attn: Heidi Hudson Yarmouth Town Hall 1146 Route 28 South Yarmouth, MA 02664 Re: Plan Change Request Proposed Culvert Reconstruction Town of Yarmouth Sea Gull Beach Road Yarmouth, MA DEP File No: SE 83-2284 Dear Commission Members: Following up on am email sent to the Conservation Department on May 19, 2022 (attached for reference), on behalf of the Town of Yarmouth, we are submitting a plan change request for the above referenced project. The plan change includes the installation of rip-rap around the concrete wing walls for the east culvert to dissipate the discharge flow of water coming from the culvert. The rip-rap will also dissipate the runoff erosion coming from the roadway. The rip-rap was installed as described in the original email, and is functioning as intended. The attached As-Built plan dated 06/07/2022 shows the location of the installed rip-rap. Therefore, on behalf of The Town of Yarmouth, we respectfully request a plan change for the rip-rap installation. A formal Certificate of Compliance and stamped as-built plans will be submitted separately upon completion and sign off of all the restoration work. Please contact me if you have any questions or require additional information. Very truly yours, COASTAL ENGINEERING CO., INC. Project Manager NDJ/TDT/cad Enclosure cc: Mass. DEP/SERO – Wetlands Town of Yarmouth Waterways Amanda Lima, Town of Yarmouth Carla Davis <cdavis@coastalengineeringcompany.com> Town of Yarmouth Sea Gull Rd Culvert Project SE#83-2284 1 message tturcotte@coastalengineeringcompany.com <tturcotte@coastalengineeringcompany.com>Thu, May 19, 2022 at 2:28 PM To: hhudson@yarmouth.ma.us Cc: "Lima, Amanda" <Alima@yarmouth.ma.us>, kvonhone@yarmouth.ma.us, kgreene@yarmouth.ma.us, Alex Von Rohrbach <avonrohrbach@coastalengineeringcompany.com>, Catherine Ricks <cricks@coastalengineeringcompany.com>, Nathan Jones <njones@coastalengineeringcompany.com>, Carla Davis <cdavis@coastalengineeringcompany.com> Heidi, Thank you for taking the time to discuss the Sea Gull Rd Culvert project today. Unfortunately, I couldn’t find the form you mentioned on the website to fill out, so hopefully the information below and attached will help convey the change we need to perform in the field. As discussed in our call, we are in the last stages of construction of the culvert replacement project and actually installed the east culvert (closest to the beach) yesterday connecting the salt marsh with Lewis Pond. Today we observed the first effects of the tidal flow and the culvert is working as intended, in fact so well that over 2 dozen horseshoe crabs used the culvert to go from Lewis Pond to the salt marsh on the south side of Sea Gull Rd (photo attached). We have discussed this with the Natural Resource Department to keep them informed. Unfortunately, we also observed significant erosion from the outfall on the Lewis Pond side when the tide ebbed last night/this mornin. We observed erosion about 6’-8’ out from the face of the new headwall in the area of the adjacent salt marsh (see photos). The observed in these photos was from 10:30 this morning an hour after low tide and the salt marsh was still draining, so the flow was less than during the full ebb cycle. Due to these observations, we need to make a slight design change from what was shown on the NOI plans and approved in the OOC (see attached plan for the east culvert). In order to protect the resource area in Lewis Pond, adjacent salt marsh, we need to install a riprap drainage apron from the headwall out about 7 feet, see attached hand sketch and photos. This will dissipate the discharge flow and will protect the adjacent salt marsh from scour/erosion during the tide cycles, and will protect the new headwall from being undermined due to the erosion. This change is all within the permitted limit of work and is only being installed to the area of the observed erosion to minimize its extent to protect the resource area. As part of the OOC conditions, we will be providing as-built plans for this project and can be reviewed/discussed in more detail upon completion. The project is at the point where final grading and repaving will be starting on Monday the 23rd and the revegetation will be completed next week for a project completion by Friday May 27th. We are looking to move forward with this necessary design change, and would appreciate any feedback from the Conservation Commission, or happy to discuss on site at the Town’s convenience. Best regards, Todd �� 260 Cranberry Highway, Orleans, MA 02653 Orleans �� www.CoastalEngineeringCompany.com �� 3 attachments C19505.00-Seagull Rd Culvert Discharge Rip Rap Detail.pdf 699K Pages from Revised Plan Submission-Town of Yarmouth red.pdf 1426K Sea Gull Road East Culvert Photos.pdf 1486K Coastal Engineering Company, Inc. Mail - Town of Yarmouth Sea Gull ... https://mail.google.com/mail/u/0/?ik=69157dfb6e&view=pt&search=al... 1 of 1 6/9/2022, 10:36 AM C19505.00 – Town of Yarmouth Culvert Repair Project - Sea Gull Road, West Yarmouth Pre-Construction Photo – East Culvert C19505.00 – Town of Yarmouth Culvert Repair Project - Sea Gull Road, West Yarmouth Post-Construction Photos – East Culvert C19505.00 – Town of Yarmouth Culvert Repair Project - Sea Gull Road, West Yarmouth Construction Photos Showing Erosion and Scour – East Culvert C19505.00 – Town of Yarmouth Culvert Repair Project - Sea Gull Road, West Yarmouth Construction Photos Showing Erosion and Scour – East Culvert C19505.00 – Town of Yarmouth Culvert Repair Project - Sea Gull Road, West Yarmouth Construction Photos Post Rip-Rap Install – East Culvert W W W W W W W W W W W W E E E E E E E E E E E T/C T/C T/C T/C T/C T/C T/C T/C T/C T/C T/C 5 2 3 4 5 2 3 4 FLOOD Z O N E A E ( E L . 1 1 ) EXISTING SALT MARSH MAP 15, PARCEL 23 TOWN OF YARMOUTH R.O.W. EXISTING SALT MARSH EBBMAP 18, PARCEL 4 TOWN OF YARMOUTH CONSERVATIONFLOODLEWIS POND AS-BUILT 12" DIA CORRUGATED POLYETHYLENE PIPE AS-BUILT CONCRETE WING WALL AS-BUILT CONCRETE WING WALL INVERT EL 0.96 INVERT EL 0.23 AS-BUILT TIMBER GUARDRAIL AS-BUILT TIMBER GUARDRAIL E.O.P. WATERLINE RELOCATED BELOW CULVERT IN THIS LOCATION APPROX LOCATION OF EXISTING ELECTRIC AND CABLE SERVICES APPROX LOCATION OF EXISTING WATER SERVICE R.O.W. E.O.P. EXISTING SALT MARSH FLOOD Z O N E V E ( E L . 1 3 ) AS-BUILT RIP-RAP AS-BUILT RIP-RAP PROJECT NO. SCALE DATE SEA GULL ROAD SHEET NO. C19505-AB.dwg DRAWN BY: NDJF:\SDSKPROJ\C19000\C19505\C19505-00\C19505-AB.dwg 6/7/2022 3:23 PMTOWN OF YARMOUTH YARMOUTH, MA C19505.00AS-BUILT - EAST CULVERT SKC-2FOR AS NOTED 06-07-2022 Coastal Engineering Co., Inc. © 2021MASSACHUSETTS STATE PLANE COORDINATE SYSTEMNORTH AMERICAN DATUM OF 1983, MAINLAND ZONE(NAD 83 (2011) (MYCS2) EPOCH 2010.00)1" = 10' 1005 PLAN