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Project 140-145 - Proposal - Hamers - 1997-09-25 ROBIN B HAMERS 234E 17TH ST SUITE 205 & ASSOCIATES INC. COSTA MESA, CA 92827 CIVIL ENGINEERS • PLANNERS • SURVEYORS (7141 549- 192 FAX(714) 548-6516 September 25 1997 Board of Directors Costa Mesa Sanitary District P 0 Box 1200 Costa Mesa, CA 92628 RE. PROPOSAL TO PROVIDE INSPECTION SERVICES PROJECT 1112100-140, 145 RECONSTRUCTING VARIOUS SEWER LINES Dear Board of Directors: The following proposal is for providing the necessary construction administration, engineering, construction surveying and inspection services during the construction phase of the project. Attached are copies of the project reports as described in the Capital Improvement Program as well as the Boyle Engineering independent report. It is proposed to provide the following services, as needed, during the construction phase of the project, not to exceed $10,400 Engineering $ 63 00/hr Inspection 42.00/hr Surveying (2 man crew) 150 00/hr Surveying (3 man crew) 170 00/hr Sincerely 1 Robin B Hamers ® Printed on Recycled Paper 01T444, PgANIT4R` COSTA MESA < fi c it,,, DISTRICT � o�r=i A n u 1p. "- ,, d -i DIRECTORS Costa Mesa Recycles \t? � James Wahner tit CQR __ James Ferryman P �ORk >ju/ Nate Reade Arthur Perry Mike Scheafer REVIEW OF PROPOSED CAPITAL IMPROVEMENT -PROJECTS FISCAL YEAR 1994-95 ESS/04, e O JO •z ICE :; L0 m cc EM P at.36 -i7 A k n,' CIVIL C OF C b, Prepared by Robin B Hamers Manager and District Engineer P.O. BOX 1200, COSTA MESA, CALIFORNIA 92628-1200 77 FAIR DRIVE (714) 754-5043 Project 1112100-140 Reconstructing_Various Sewer Lines The project is similar to past projects and includes rehabilitation and maintenance of the existing gravity sewer line system on an as-needed basis The results of the four large - televising projects have disclosed existing problems in the main lines such as sags cracked pipe collapsed pipe offset joints and root intrusion The project sets up a priority list of the problem areas and repairs the lines on this basis The project is a yearly project and part of an ongoing maintenance program The only problem type mentioned above which is not repaired by this project is root intrusion which is handled through root cutting by the District Throughout the past three projects of this type the District has repaired the problem areas using two different methods Two of the projects were completed using standard remove and replace construction where the contractor excavated down to the line made the repair and then backfilled and repaved One of the projects was completed using Link-Pipe where stainless steel sleeves were inserted into the line adjusted to the right location using a camera and then expanded to permanently seal itself Link-Pipe is generally an easier and more economical repair method however it has some limitations in its application The decision to use Link-Pipe or remove and replace construction will be made during the design phase when the scope of each repair is more fully investigated An estimate of the project costs is as follows Design $ 9 600 Construction 115 000 Inspection 10 400 Reserve or Contingency 15 000 TOTAL $ 150 000 COSTA MESA N-4``5..- ' DISTRICT 'n DIRECTORS _ „.r. James Ferryman Costa Mesa Recycles r '^ s ��' Nate Reade i� yCORPORA��`� Arthur Perry Arlene Schafer Printed on Recycled Paper Dan Worthington REVIEW OF PROPOSED CAPITAL IMPROVEMENT PROJECTS FISCAL YEAR 1995-96 71;0 GS:Sioz; F Al pr co t 1�'l. �- v� /p r`� LF F _ i ,- 1 , n ,, ) fFnLiFCA' i��� Prepared by Robin B Flamers Manager/District Engineer FAX(714)432-1436 P.O. BOX 1200, COSTA MESA, CALIFORNIA 92628-1200 77 FAIR DRIVE (714) 754-5043 ggi Project 1112100-145 Reconstructing Various Sewer Lines The project is similar to past projects #122 , 126, 132 and 140 which includes rehabilitation and maintenance of the existing gravity sewer line system on an as-needed basis The results of the original four large televising projects plus the small yearly projects have disclosed existing problems in the main lines such as sags, cracked pipe, collapsed pipe, offset joints and root intrusion The project sets up a priority list of the problem areas and repairs the lines on this basis The project is a yearly project and part of an ongoing maintenance program The only problem type mentioned above which is not repaired by this project is root intrusion which is handled through root cutting by the District Throughout the past four projects of this type the District has repaired the problem areas using two different methods Two of the projects were designed using standard remove and replace construction where the contractor excavates down to the line makes the repair, and then backfills and repaves One of the projects was completed using Link-Pipe, where stainless steel sleeves were inserted into the line, adjusted to the right location using a camera and then expanded to permanently seal itself Link-Pipe is generally an easier and more economical repair method, however, it has some limitations in its application The decision to use Link-Pipe or remove and replace construction will be made during the design phase when the scope of each repair is more fully investigated Previous costs for excavation and reconstruction have been approximately $650/foot since the footage is only between two and six feet This would allow approximately 35 locations to be included in the project Link-Pipe costs have averaged $3 500 per location or approximately $700 per foot - 4 - fj An estimate of the project costs is as follows Design $ 9 600 Construction 115, 000 Inspection 10, 400 Reserve or Contingency 15, 000 TOTAL $ 150, 000 - 5 - Bogle Engineering Corporation con supine er.oineers arcnueccs 50 QJ Sir 't - 714/475-3300 PC S, 3.-3i FAX 714/ i2 7 42 - 'vNwt art be nh. CA S2558-3020 Telex 68556' TRRrISPORTRTIOrl SERVICES Mr Robin Hamers, District Manager/Engineer July 7 1994 COSTA MESA SANITARY DISTRICT P O Box 1200 Costa Mesa, CA 92628-1200 1994-95 Capital Improvement Program (CIP) Review I have completed my review of the Costa Mesa Sanitary District(District) s CIP report for the 1994-95 fiscal year The review consisted of reading the project descriptions, telephone conversations with District staff (Robin Hamers)and an independent analysis of construction costs, design and construction engineering costs, and contingency costs. The following represents my analysis of each of the CIP projects: This is the third independent review of the District s CIP program, 1992-93 being the first year reviewed. The 1994-95 proposed improvement projects appear warranted and the report continues to properly reflect the on-going capital improvement program. Project 1112100-139 Congress Pump Station Abandonment This is the second of several projects to eliminate pump stations. Based on discussions with staff approximately 1300-feet of 12-inch sewer will be constructed. Project will abandon the existing pump station, and will include new manholes as well as revamp of several others. For budget purposes the estimated design/construction cost and contingency cost appears reasonable. It is suggested that future and similar projects include a location/vicinity map, estimated footage of pipe to be placed and other appropriate items (major). Project 112100-140 Reconstructing Various Sewer Line This project is similar to previous years projects and is in keeping with the Districts rehab and maintenance program. Previous years projects were Nos. 122, 126 & 132. Mr Robin Hamers July T 1994 Page 2 This project will utilize Link-Pipe or remove and replace construction techniques depending upon conditions found during design. The construction budget will allow for repairs at approximately 30± locations. Because of numerous locations the design, inspection and contingency budget appears to be reasonable. Project 1112100-141 Televising Sewer Lines As discussed for previous CIP programs and with District staff this is a service type project not construction. Therefore, normal design, construction and inspection percentages do not apply However it is suggested that other terms be used rather than `Design and Construction. The estimate televising costs represents approximately 11,000 of pipe to be televised at$.45/If based on discussions with District staff. Because of the nature of the project and that District staff is needed at all times for cleaning ahead of the camera, coordination, and supervision of the work, the District Engineer costs will be higher, percentage wise, versus a design project. It is suggested that for future similar projects the first three items above be included in the project description to more clearly define the scope of work. Project 1112100-142 Reconstruct Force Main at Adams Pump Station Pump Station was constructed in 1964 remodeled in 1985 force main ruptured in 1985 and in 1994 Outside of repairs no replacement work has ever been done on the asbestos-cement force main. Because of recent street construction, the City may invoke its street cut moratorium which means alternatives will need to be studied. The options contained in the CIP program appear reasonable. Care should be taken in working with, removal and disposal of the asbestos cement pipe. The budget appears reasonable for design and inspection. Depending upon the option selected the contingency could be low for handling and disposal of the existing asbestos-cement pipe. Project 1112100-143 Reimbursement for Sewer Work by Others Project description adequately describes what is programmed and why the District needs to appropriate funds for this function. As stated previously it might be beneficial to indicate the estimated/anticipated number of manholes to purchase and/or reconstruct. This estimate could be made based on past history of similar work. It is.suggested that the District provide and/or have for staff/Board information and for independent CIP review a bid recap/data base of past projects that could list the main items of the project, i.e. a Boyle Engineering Corporation consulting engineers / arcnaects 1501 Quad Street ^ 714 476-3300 P.O. Box 3030 FAX714/7217142 Newport Beach, CA 92658-9020 Telex 685561 : 1:5,11 hlY'r+140,e%xr Y-A fiN. LL,...��.. .i.+-.Y N .:ra.F.'a`.TZ1 .::M TRRIISPORTRTIOI'I SERVICES Mr Robin Hamers. District Manager/Engineer August 29 1995 COSTA MESA SANITARY DISTRICT Post Office Box 1200 Costa Mesa. CA 92628-1200 1995-96 Capital Improvement Program (CIP) Review I have completed my review of the Costa Mesa Sanitary District (District) s CIP report for the 1995-96 fiscal year The review consisted of reading the project descriptions. telephone conversations with District staff(Robin Hamers) and an independent analysis of construction costs. design and construction engineering costs. and contingency costs. The following represents mm analysis of each of the CIP projects. This is the fourth independent review of the District s CIP program. 1992 93 being the first year reviewed. The 199.-96 proposed improvement projects appear warranted and the report continues to proper]. reflect the on-going capital improvement program. Project 1112100-144 Manhole Rehabilitation This is the first on what appears to be an on-going rehab of manholes. Existing manholes are experiencing deterioration due to gas and flom turbulence. Project will rebuild walls to bring them back to standard thickness prior to coating with polyurethane. For budget purposes the estimated design/construction cost and contingenc\- cost appear reasonable. It is suggested that future and similar projects include a location/vicmit\ map and/or estimated cost per location. .y Mr Robin Hamers August 29 1995 Page 2 Project-112100-145 Reconstructing Various Sewer Lines This project is similar to previous years projects and in keeping with the District's rehab and maintenance program. Previous years projects were Nos. 122. 126, 132 and 140. This project will utilize Link Pipe or remove and replace construction techniques depending upon conditions found after further investigation. The construction budget will allow for repairs at approximately 35 locations. Based on data provided, cost could range from $650 to $700 per foot. pending type of construction used. Because of numerous locations the design, inspection and contingency budget appears to be reasonable. Project 1112100-146 Televising Sewer Lines As discussed for previous CIP programs and with District staff this is a service type project not construction. Therefore, normal design, construction and inspection percentages do not apply Project description. reasoning of need and approval were presented well. The estimated televising costs represents approximately 11 000 feet of pipe to be televised at $ 45/1f based on discussions with District staff. Because of the nature of the project and that District staff is needed at all times for cleaning ahead of the camera. coordination, and supervision of the work. the District Engineer costs will be higher, percentage wise, versus a design project. It is noted that suggestions from 1994-95 were incorporated in this year s CIP program. Project 1112100-147 Update Early Warning System Protecting Pumps Recent completed projects utilized pumps containing the latest sensing mechanisms. This project will modify existing pumps to provide similar telemetry for sensing moisture and heat. This is the first of several projects which will update pump telemetry over a three to five year period. For budgeting purposes the design, construction inspection and contingency costs appear reasonable. As a suggestion for future projects, the use of a map (Thomas Bros) showing proposed locations would be beneficial.