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Foundation Repair Mill Valley

RWR has done a lot of work in the Mill Valley area, including foundation repairs, retaining walls and drainage repairs. You may see our trucks and drilling equipment on East Blythedale, working their way up into the Mill Valley neighborhoods. The hilly Mill Valley area, at the foot of Mt Tamalpais gets a lot of rain and moisture, which can cause foundations to become unstable, and retaining walls to fail. It is important to correct these problems with well designed, well engineered plans, that are properly constructed. RWR specializes in this type of construction work in the Mill Valley area, and has great relationships with many engineers and architects working in this area. If you have a situation you’d like us to look at, please give us a call.

Here’s an example of foundation repair work we perform in the Mill Valley area. You can see this work requires skillful experienced foundation contractors and very competent crew. RWR brings you the expertise you need for your important project.

This estimate is based on architectural drawings and structural. This bid is for the excavation and installation of new house addition reinforced concrete foundation on piers.

Our price includes all labor and material to complete the work as per the itemized Scope of Work below.

Scope of Work
New Addition Foundation
Excavation
• Excavate for the installation of the new house addition as per plans. Off-haul excavated spoils from site.

Mobilization and Supervision
• Mobilize to jobsite. Demobilize.
• Supervision.
• Perform weekly cleanup.

New Concrete Foundation Installation
• For the new house addition, install new perimeter and interior grade beams and footings as per structural details and layout on sheet S2.1. Includes garage stem walls poured monolithically.
• For the new garage, install a new 5” thick reinforced concrete slab over with # 3 @ 12” o.c., e.w. 10 mil vapor barrier and 4” of ¾” crushed gravel.
• Clean up RWR related debris and form materials from site.

Drill and Install Piers
• Drill and install a total of (28) 18” diameter x 10 ft deep maximum reinforced concrete piers as per sheet S2.1 layout. Remove drilling spoils from site.
Alternate #1 Existing Structures Demolition
• Perform existing house garage and foundations demolition per plans for the installation of the new house addition.
Demolition exclusions: Permits, retention, hazardous materials abatement, utility safe-offs, grading and backfilling.

Notes
• Elevations and layout to be provided by General Contractor or surveyor (hired by others) performing the remainder of the project.

Qualifications and Clarifications
• Job is bid as package unless agreement to otherwise
• Includes one mobilization only.
• Prices are subject to adequate supply of rock, concrete, asphalt, PVC resins, PVC pipe, fittings at prices quoted at bid time and are good for 30 days.
• Proposal is based on working std 40 hours per week, 5 work days and mutually agreeable schedules.
• Progress payments every two weeks.

Exclusions
• Cost of plans, permits, bonds, testing and inspections.
• Increased costs of excavation or drilling due to hard rock, caving or underground water. (Hard rock excavation is defined as material that requires the use of pneumatically or hydraulically operated hammers or rams to excavate). (Hard rock drilling is defined as a penetration rate slower than 1 ft. in 5 minutes).
• Additional cost due to utility obstructions including any additional work on utilities or buried pipes.
• Landscaping work or any additional retaining walls, walkways, patios, tie steps or other concrete work not mentioned in our scope of work.
• Waterproofing or drainage.
• Excavation of hazardous materials, underground tanks, or materials unacceptable at dumps.
• Architectural concrete or type of special concrete finish product other than integral color in the concrete mix allowance mentioned above.
• Surveying and Layout.
• Supply of embedments other than foundation bolts.

 

Foundation Repair Mill Valley

RWR has done a lot of work in the Mill Valley area, including foundation repairs, retaining walls and drainage repairs. You may see our trucks and drilling equipment on East Blythedale, working their way up into the Mill Valley neighborhoods. The hilly Mill Valley area, at the foot of Mt Tamalpais gets a lot of rain and moisture, which can cause foundations to become unstable, and retaining walls to fail. It is important to correct these problems with well designed, well engineered plans, that are properly constructed. RWR specializes in this type of construction work in the Mill Valley area, and has great relationships with many engineers and architects working in this area. If you have a situation you’d like us to look at, please give us a call.

Here’s an example of foundation repair work we perform in the Mill Valley area. You can see this work requires skillful experienced foundation contractors and very competent crew. RWR brings you the expertise you need for your important project.

Preliminary Estimate for Demolition of Existing Garage and Driveway Slab, Drilling and Installation of Piers, Installation of Foundation for Addition and Exterior Stairs

This preliminary estimate is based on preliminary plans. The work consists of demolition of the existing garage slab and part of the existing driveway. Work will include installation of drilling and installing piers for the new addition along with numerous foundation footings and grade beams and new exterior stairs. Include new slab for garage floor.

Our price includes all labor and material to complete the work as per the itemized Scope of Work below.

Scope of Work

Mobilization
• Mobilize to site. Demobilize
• Layout to be completed by General
• Supervision
• Fuel Surcharge
• Daily Cleanup
• Includes Final Clean Up

Demolition
• Demolish existing garage slab and part of driveway per plans and specifications. Off-haul debris from site.

Piers

• Excavate and Install twenty six (26) 18” concrete reinforced piers to various depths as shown on S1.1. Pier depths are as indicated on plans.
• Remove Spoils

Foundations

• Excavate and install approx. 298 linear ft. of foundations. Foundations are per plans and specifications are a maximum of x 24” wide x 34” high of reinforced concrete grade beam as per plans and specifications.
• Drill and install approximately 35 dowels per plans and specifications

Stairs
Install Concrete Reinforced stairs per plans and specifications on 1/S3.3

Slabs

• Install 6” reinforced concrete slab over 2” of sand and 4” of crushed rock base and 6-mill membrane. Reinforcement to be #5 rebars 12”each way per plans and specifications.
• Approximately 504 square feet of slab. .

Exclusions
• Cost of plans, permits, bonds, testing and inspections.
• Layout
• Increased costs of excavation due to hard rock, caving or underground water. Hard rock excavation is defined as material that requires the use of pneumatically or hydraulically operated hammers or rams to excavate. Hard rock drilling is defined as a penetration rate slower than 1ft. in 5 minutes.
• Any work on utilities including buried pipes.
• Excavation and off hauling of hazardous materials, underground tanks, or materials unacceptable at dumps.
• Grubbing or Replacement of damaged landscaping or hardscaping including trees.
• Costs for providing safe off of utilities.
• Any Waterproofing required.
• Guard Rails
• East Side Stairs
• 6X6 Posts
• Steel Column
• Demolition of slabs over 4” thick or foundations over 1’ thick.
• Any Rock Facing on new retaining walls

Note: We will require a soils report to complete bid.

Foundation Repair Mill Valley

RWR has done a lot of work in the Mill Valley area, including foundation repairs, retaining walls and drainage repairs. You may see our trucks and drilling equipment on East Blythedale, working their way up into the Mill Valley neighborhoods. The hilly Mill Valley area, at the foot of Mt Tamalpais gets a lot of rain and moisture, which can cause foundations to become unstable, and retaining walls to fail. It is important to correct these problems with well designed, well engineered plans, that are properly constructed. RWR specializes in this type of construction work in the Mill Valley area, and has great relationships with many engineers and architects working in this area. If you have a situation you’d like us to look at, please give us a call.

Here’s an example of foundation repair work we perform in the Mill Valley area. You can see this work requires skillful experienced foundation contractors and very competent crew. RWR brings you the expertise you need for your important project.

This estimate is based on architectural drawings, civil drawings and structural drawings. The proposal is for the installation of a new reinforced concrete foundation per structural drawings as well as earth shoring system per structural drawings.

Scope of Work
Mobilization and Supervision
• Mobilize to jobsite. Demobilize.
• Supervision.
• Perform weekly cleanup.
Grubbing and clearing work area
• Grub and clear work site area of all vegetation (except trees and stumps) plus remove the cleared materials and strippings from site.

Existing house structure structural shoring
• Install combination of post, driven pipe pile and cribbing towers with temporary beams to support the existing house structure at elevation 140 as per plans. Installation of cribbing towers to be performed in conjunction with house foundation demolition operations and mass excavation for cribbing tower installation. Removal of cribbing towers once house is re-attached to new foundations (by others) is included.
House & Garage Foundation Demolition for New foundation Installation
• Demolish and remove from site the existing house foundation including the existing house chimney, concrete walkways, concrete stairs, existing garage foundation, existing garage structure & wooden deck, plus scrape existing driveway AC. Includes demolition of all visible concrete foundations for the installation of the new foundations shown on structural drawings. All soft demolition to be provided by GC. See requested broken-down prices provided on sheet one.
• Off-haul all demolished debris from site.

Tieback & shotcrete shoring installation
• Drill and install (116) at 60 kips (design capacity) 1” diameter double corrosion-protected 150 ksi diameter tieback bars in 6” diameter drilled shafts extending into soil as per plans (Includes bonded and un-bonded lengths). Off-haul drilling spoils from site.
Note: tiebacks are included at different embedment depths and with bonded and un-bonded lengths accordingly as shown on detail 1/S3.0. For the house, tiebacks at elevation 118’ = 39 ft. total embedment, @ elevation 124’ = 44 ft. total embedment & @ elevation 130’ = 49 ft. total embedment & @ elevation 136 (where applies) = 54 ft. total embedment. The same bonded un-bonded equation applies for the new car elevator area east, north and south sides @ elevations; 139’ 145’ 151’ & 157. An allowance for the installation of a total of 5107 total linear ft. of bonded and un-bonded lengths is included in this estimate.
• Install in sequence a 3” thick layer of reinforced concrete shotcrete in 5 ft. lifts for earth shoring purposes and interlock with a rebar whaler grid system installing a standard nut and 6”x6” washer to lock the temporary earth retention system as excavation proceeds downward.

Mass house foundation & car elevator excavation
• Excavate to new house foundation & sub-grades per elevations shown on drawings. No import is included in this estimate. All native spoils are assumed acceptable to be used for re-compaction.
• Off-haul excess soils from site.

Pier installation
• Drill and install (61) 18” diameter x 20 ft. deep maximum reinforced concrete piers. An allowance of 1220 linear ft. of reinforced concrete piers is included.
• Off-haul excess soils from site.

Backfill and re-compaction operations
• As job progresses and coordinating the installation of the new house retaining wall plus site plan driveway wall sequence with General Contractor, re-use approx. 450 cubic yards of native soil for backfilling and re-compaction behind the new retaining walls mentioned above to create the new auto court area. Includes cutting a maximum of 4 ft. wide x 12” stepped base footings into the native slopes as standard procedure prior to commence re-compaction operations. All excavated spoils generated from “stepped benching to be re-compacted as well.
• Off-haul excess soils from site. See notes below.

Notes:
1. An estimated approx. 1950 cubic yards of dirt will be extracted from the original existing grades to achieve the new slab sub-grades, excavation for the new house & car elevator foundation. At the same time a rough calculation for the re-compaction requirements is approx. 450 cubic yards of the native soil, an excess of approx. 1500 cubic yards of dirt to be off-hauled from site.
2. The excavation price provided includes the off-haul of 1500 cubic yards from site and includes excavation, loading, transportation and dump fees. No deducts

House S2.1, S2.2 & 2.3 & new carport S2.4 foundation + site walls S2.6 concrete work
• For the new garage foundation level per sheet S2.4, install new 5” thick reinforced concrete slab over a new 24” thick x 5 ft. wide perimeter footing foundation per 1/S3.0 retaining/concrete walls.
• For the new third level, floor foundation level, and as per sheet S2.3, install new 5” thick reinforced concrete slab over a new 24” thick x 5 ft. wide perimeter footing foundation per 1/S3.0 retaining/concrete walls. Omit installation of mud/storage room at this level as shown on structural sheet S2.3.
• For the new level two, floor second level, and as per sheet S2.2, continue east side walls up to elevation 140’ plus install new mud/storage room 18” thick mass footing and perimeter walls.
• For the new main house level and as per sheet S2.1, install shown 10” thick elevated slab at new mud/storage room + storage foundation.
• Includes the installation of a new site walls per layout and height retained on sheet S2.6.
• Clean up construction debris from site.
Alternate #1 Erosion Control
• Per indications on C-500
Alternate #2 Utility lines
• A multiline trench approx. 120 ft. long x 36” deep x 18” wide backfilled with 18” of fill sand and 18” of native soil.
• A single service line trench approx. 120 linear ft. long x of 24” wide x 18” deep. Backfill trench with 8” of sand and re-compacted native soil to cap the rest of the trench.

Alternate #3 Earth work area winterization
• Install 6 mil plastic with sand bags over it for temporary winterization as needed.
Alternate #4 Concrete Driveway (optional)
• Install a new 5” thick structural concrete driveway slab on grade for driveway (2905 sq. ft. allowance) area.
Alternate #5 Stump removal
• Remove native sumps from site (up to 36” in diameter)
Notes
• Existing structures protection, adjacent structures protection, elevations, layout and secured batter boards as well as elevation story poles to be provided and confirmed by General Contractor prior to concrete installation.
• Trees to be removed (by others) are assumed to be removed prior to mobilization and brake-ground day.
• Waterproofing and drainage membranes are to be provided and installed by others (please see limited backfill and re-compaction scope above).
• Elevations, provide of elevation story pole, layout providing, checking & confirmation of and secured batter boards to be provided by General Contractor performing the remainder of the project.
• Native soils are assumed acceptable to be used for backfill and re-compaction where needed. Import of engineered fill or any other type of import for re-compaction materials (if needed) is not included in this estimate.
• All walls are assumed Shotcrete installation approved for cost savings. If board formed walls are selected see additional cost and add it to preliminary pricing at each alternate.
• New auto court sub-grades re-compaction operations assumed benching into exiting grades by a standard 12” deep x maximum 4 ft. wide benches. No additional excavations or re-compaction of un-acceptable existing sub-grades is assumed at this point. In an event the project soils engineer requires to over excavate existing grades and backfill and re-compact the driveway area with native soils down to acceptable bearing native materials to receive the new re-compaction operations included in our preliminary proposal additional cost will apply.

Qualifications and Clarifications
• Job is bid as package unless agreement to otherwise
• Itemized provided pricing is shown as reference and per request of the GC. Itemized prices are not self-supporting.
• Includes one mobilization only.
• Prices are subject to adequate supply of rock, concrete, asphalt, PVC resins, PVC pipe, fittings at prices quoted at bid time and are good for 30 days.
• Proposal is based on working std 40 hours per week, 5 work days and mutually agreeable schedules.
• Progress payments every two weeks. No retention.
Exclusions
• Cost of plans, shop drawings, permits, bonds, testing and inspections.
• Increased costs of excavation or drilling due to hard rock, caving or underground water. (Hard rock excavation is defined as material that requires the use of pneumatically or hydraulically operated hammers or rams to excavate). (Hard rock drilling is defined as a penetration rate slower than 1 ft. in 5 minutes).
• Tree removal, stump removal
• Site drainage.
• Erosion control and winterization.
• Demolition or removal of buried or unknown concrete or other structures (e.g. deep footings, massive footings, buried concrete walls etc.) beyond reasonable (12” below grades x thicknesses above grades) assumed existence of at the time this proposal was being put together.
• Mock ups.
• Driveway resurface, driveway related walls (not outlined on structural drawings), or new auto court installation, concrete stairs, walkways, or any other concrete work not outlined on the current structural drawings or included in our scope of work.
• Metal I-beams/metal work, welding related or any related not mentioned above.
• Precast concrete, integral color slabs or other concrete work not outlined in our scope of work.
• Street sidewalk, street entry driveway, street-curb concrete work or driveway asphalt work.
• Tanks (provided and installed by plumbing contractor), house downspouts or any other plumbing work not related to scope of work outlined above.
• Drainage, waterproofing membranes, water stop plus perimeter edge drains/aqua drains for all new concrete walls.
• Plumbing work, zurn drains, plumbing lines, sump/ejector pit installation or any other work not mentioned in our quote.
• Provide or install of shrink/leveling grout.
• Soil injection/Soil grouting.
• Excavation of hazardous materials, underground tanks, or materials unacceptable at dumps.
• Additional cost due to utility obstructions including any additional work on underground utilities or buried pipes.
• Supply of embedments for concrete work other than foundation “J” bolts.

 

Foundation Repair Mill Valley

RWR has done a lot of work in the Mill Valley area, including foundation repairs, retaining walls and drainage repairs. You may see our trucks and drilling equipment on East Blythedale, working their way up into the Mill Valley neighborhoods. The hilly Mill Valley area, at the foot of Mt Tamalpais gets a lot of rain and moisture, which can cause foundations to become unstable, and retaining walls to fail. It is important to correct these problems with well designed, well engineered plans, that are properly constructed. RWR specializes in this type of construction work in the Mill Valley area, and has great relationships with many engineers and architects working in this area. If you have a situation you’d like us to look at, please give us a call.

Here’s an example of foundation repair work we perform in the Mill Valley area. You can see this work requires skillful experienced foundation contractors and very competent crew. RWR brings you the expertise you need for your important project.

This estimate is based on structural drawings. The bid consists of performing foundation repairs as per plans.

Our price includes all labor and material to complete the job as per the itemized “Scope of Work” below.

Scope of Work
Foundation Repair Work
• Mobilize to jobsite. Demobilize.
• Supervision. Perform weekly cleanup.
• In sequence, install combination longitudinal metal beams, temporary posts, driven pipe pile and crib towers attached to the existing house supports/metal posts to support main floor of house. Remove shoring system after house is re-supported on new foundations.
• Demolish and remove from site the upper sections of existing concrete pedestals/foundation (as required and as shown on drawings) specifically for the installation of the new reinforced concrete work. Off haul demolition debris from site.
• Drill and install (12) 18” diameter x 10 ft. deep reinforced concrete piers + excavate for and install (6) hand-dug footing/piers as per plans. Remove drilling spoils from site.
• Excavate for and install new reinforced concrete grade beams and concrete pads as per plans, assigned structural details and specifications on S1 foundation plan. Remove excavated spoils from site.
• Clean-up site and remove all construction debris and excess soils.

Qualifications and Clarifications
• Job is bid as package unless agreement to otherwise
• Includes one mobilization only.
• Prices are subject to RWR obtaining adequate supply of rock, concrete, asphalt, PVC resins, PVC pipe, fittings at prices quoted at bid time and are good for 30 days.
• Proposal is based on working std 40 hours per week, 5 work days and mutually agreeable schedules.
• Elevations and layout to be provided by General Contractor performing the remainder of the project.
• Due to temporary shoring installation under the existing house structure, installation/removal of shoring may result in small cracked walls, uneven floors finishes as well as other cosmetic damages. Not including repair of same in this estimate.

Exclusions
• Cost of plans, permits, shop drawings, bonds, testing and inspections.
• Increased costs of excavation or drilling due to hard rock, caving or underground water. (Hard rock excavation is defined as material that requires the use of pneumatically or hydraulically operated hammers or rams to excavate.) (Hard rock drilling is defined as a penetration rate slower than 1 ft. in 5 minutes.)
• Any work on utilities including buried pipes.
• Waterproofing or drainage work.
• House re-leveling.
• Earth shoring.
• Erosion control.
• Winterization.
• Excavation of hazardous materials, underground tanks, or materials unacceptable at dumps.
• Architectural concrete or type of special concrete finish product.
• Surveying and Layout.

 

underpinning

Need underpinning to permanently stabilize home or level floors in Berkeley? Call 415-457-5658 for a prompt, reliable estimate from our experienced estimator. RWR has been installing underpinning in Berkeley for over 24 years. You will see our trucks and equipment working in Berkeley, Berkeley Hills, and Kensington.

Here’s the kind of detailed estimate you can rely on, to correct foundation problems and perform structural work, including even zero lot line jobs that require our expertise:

This estimate is based on architectural drawings and structural drawings. The estimate is for the installation of new concrete foundation work and piers as shown on structural drawings. 

The price includes all labor and material to complete the work as per the itemized Scope of Work below.

Scope of Work
Basement/Foundation Plan
• Mobilize to jobsite & supervision.
• Demolish the existing concrete foundation as shown on drawings. Remove demolished foundation debris from site.
• Excavate for the installation of the new basement level footings, walls and tie beams as shown on plans. Includes the excavation of (5) pier haunches per detail 14/S2.1. Off-haul excavated spoils from site.
• Drill and install a total (11) 16” diameter x 8 ft. deep plus (20) 16” diameter x 6 ft. deep reinforced concrete piers with rebar cage configuration shown on structural detail 14/S2.1.
• Install new reinforced concrete foundation per layout and structural details shown on foundation sheet S2.1.
• Clean-up and remove construction debris from site.

Breakdown Pricing (not self-supporting)
• Mobilization & Supervision
• Hard demolition
• Mass & foundation excavation & Off-haul
• Drill and install concrete piers.
• Install basement concrete foundation
Alternate #1 – Drainage and Waterproofing
• Install Paraseal waterproofing membranes over Miradrain 6000 drainage panels against the earth cuts at the new perimeter basement retaining walls (grid lines A, E, C, D & 4.5). Terminate both membranes at the bottom of footing level into a new AquaDrain 15X/Edge drain. connect edge drain @ three locations into a continuous buried 4” dia. SDR-35 tite line. Outlet tite line into a small 2 ft. x 2 ft. x 2 ft. drainage/dissipater approx. 20 ft. downhill from the back of house. Final outlet location TBD.
Alternate #2 – Xypex additive
• Add Xypex waterproofing additive to the new structural retaining walls and structural slab concrete mix at the batch plant by concrete supplier.
Qualifications and Clarifications
• Job is bid as package.
• Includes one mobilization only.
• Elevations and layout to be provided by general contractor performing the reminder of the project. Contractor will assist general contractors with layout and elevations.
• Proposal is based on working std 40 hours per week, 5 work days and mutually agreeable schedules.
• Progress payments every two weeks. No retention.

Note: This bid assumes contractor will be performing services as a Sub-contractor to a General Contractor. Bid assumes contract will utilize standard contractual provisions. It reserves the right to accept or reject General Contractor’s contractual provisions.

Exclusions
• Cost of plans, permits, bonds, testing and inspections.
• Increased costs of excavation or drilling due to hard rock, tree roots, caving conditions, underground water. (Hard rock excavation is defined as material that requires the use of pneumatically, hydraulically or 35 pound and over electrically operated hammers or rams to excavate.) (Hard rock drilling is defined as a penetration rate slower than 1 ft. in 5 minutes.)
• Earth shoring/structural shoring operations.
• Erosion control or site winterization.
• Excavation of hazardous materials, underground tanks, or materials unacceptable at dumps.
• Architectural concrete or type of special concrete finish product (e.g. board form, color concrete, sealers, etching, etc.).
• Any work on utilities including buried pipes.
• Soil grouting, injection or permeation.
• Concrete work other than basement foundation work shown on S2.1.
• Foundation embedments other than foundation “J” bolts.

 

underpinning

Need underpinning to permanently stabilize home or level floors in Berkeley? Call 415-457-5658 for a prompt, reliable estimate from our experienced estimator. RWR has been installing underpinning in Berkeley for over 24 years. You will see our trucks and equipment working in Berkeley, Berkeley Hills, and Kensington.

Here’s the kind of detailed estimate you can rely on, to correct foundation problems and perform structural work, including even zero lot line jobs that require our expertise:

This estimate is based on drawings. The scope of work includes excavation for grade beam, drilling, concrete piers and installing concrete wall. The price includes all labor and material to complete the work as per the itemized scope of work below.

Scope of Work

Mobilization and Layout
• Mobilize to jobsite with portable drilling rigs and other necessary equipment to complete job (See notes below).
• Daily Cleanup
• Final Cleanup

Piers
• Drill twelve (12) 18” diameter x 10 ft maximum pier holes as shown on plans and specifications S1. See drilling conditions. Final depths to be determined by soils engineer.
• Install twelve (12) steel cages x 10 ft and place concrete in holes per plans and specifications S2.
• No Off haul of pier spoils.

Concrete Wall and Grade Beam
• Excavate for new concrete grade beam per plans and specifications S1.
• No Off haul of spoils from site
• Install 410 sq. ft of new pour in place concrete reinforced retaining wall per plans and specifications S1.
Drainage and Demo
• Demo existing wood wall and off haul debris from site.
• Install 4” SDR 35 perforated drain pipe behind new wall per plans and specifications. Note: no final exit for drainage provided.
• Backfill behind wall approximately 1 ft back ¾ drain rock approximately 1 to 2 ft from top of new wall.
• Final backfill to be completed by others.
• Note: final drainage exit to be completed by others
Qualifications and Clarifications
• Job is bid as package.
• Includes one mobilization only.
• Prices are subject to adequate supply of wood, steel, rock, concrete, and asphalt, PVC resins, PVC pipe, fittings at prices quoted at bid time and are good for 30 days.
• Proposal is based on working std 40 hours per week, 5 work days and mutually agreeable schedules.
• Progress payments every two weeks. No retention.
• General Contractor to arrange for all encroachment permits to permit pour from street. Price includes cost for traffic control for a maximum of three pours.
Exclusions
• Cost of plans, permits, bonds, testing and inspections.
• Any additional work due to utilities including buried pipes or irrigation pipes unless noted.
• Increased costs of excavation or drilling due to hard rock, caving or underground water. (Hard rock excavation is defined as material that requires the use of pneumatically or hydraulically operated hammers or rams to excavate.) (Hard rock drilling is defined as a penetration rate slower than 1 ft. in 5 minutes).
• Replacement of damaged landscaping, driveway or fence.
• Excavation and off hauling of hazardous materials, underground tanks, or materials unacceptable at dumps.
• Any work related to landscaping, fences or gates except as outlined
• Survey of property lines
• Landscaping or irrigation
• Demo of concrete in excess of 12 inches.
• Electrical or plumbing
• Off haul of spoils
• Importation of fill except for drain rock

 

underpinning

Need underpinning to permanently stabilize home or level floors in Berkeley? Call 415-457-5658 for a prompt, reliable estimate from our experienced estimator. RWR has been installing underpinning in Berkeley for over 24 years. You will see our trucks and equipment working in Berkeley, Berkeley Hills, and Kensington.

Here’s the kind of detailed estimate you can rely on, to correct foundation problems and perform structural work, including even zero lot line jobs that require our expertise:

This estimate is based on architectural drawings and structural drawing. The bid is for the installation of new reinforced concrete elevator pad/footing + walls as per plans.

Our price includes all labor and material to complete the work as per the itemized Scope of Work below.

Scope of Work
Base Bid – Pier Installation + Concrete Work
Scope of Work
• Mobilize to job site. Supervision.
• Excavate for the installation of new elevator foundation as per plans. Off-hauling of drilling spoils from site by GC.
• Drill and install (2) 18” diameter x 22 ft. deep maximum reinforced concrete piers as per plans. Off-hauling of drilling spoils from site by GC.
• Install new elevator reinforced concrete foundations as per plans. Includes Paraseal and Miradrain 6000 drainage panels as shown on drawings. Terminate sub-surface drainage line at lower corner of new elevator pad. Final outlet of new sub-surface drainage by GC.
Alternate #1-Drilling operations only
• Drilling operations only (16 hrs. maximum + mobilization included). Spoils handled by GC as well as removal of spoils from site. Quote includes (2) man drilling crew only.

Notes
• Elevations, secured batter boards and surveying to be provided by General Contractor performing the remainder of the project.
Qualifications and Clarifications
• Job is bid as package unless agreement to otherwise
• Includes one mobilization only.
• Prices are subject to adequate supply of rock, concrete, asphalt, PVC resins, PVC pipe, fittings at prices quoted at bid time and are good for 30 days.
• Proposal is based on working std 40 hours per week, 5 work days and mutually agreeable schedules.
• Progress payments every two weeks.

Note: This bid assumes contractor will be performing services as a Sub-contractor to a General Contractor. Bid assumes contract will utilize standard contractual provisions. It reserves the right to accept or reject General Contractor’s contractual provisions.

Exclusions
• Cost of plans, permits, bonds, testing and inspections.
• Increased costs of excavation or drilling due to hard rock, caving or underground water. (Hard rock excavation is defined as material that requires the use of pneumatically or hydraulically operated hammers or rams to excavate). (Hard rock drilling is defined as a penetration rate slower than 1 ft. in 5 minutes).
• Earth shoring or structural shoring.
• Off-hauling of spoils from site.
• Soft or hard demolition.
• Any work on utilities including buried pipes.
• Drainage or waterproofing work not mentioned in our scope of work.
• Excavation of hazardous materials, underground tanks, or materials unacceptable at dumps.
• Removal of trees or stumps from site.
• Architectural concrete, color concrete or any type of special concrete finish product.
• Supply of embedments other than foundation “J” bolts.

 

underpinning

Need underpinning to permanently stabilize home or level floors in Berkeley? Call 415-457-5658 for a prompt, reliable estimate from our experienced estimator. RWR has been installing underpinning in Berkeley for over 24 years. You will see our trucks and equipment working in Berkeley, Berkeley Hills, and Kensington.

Here’s the kind of detailed estimate you can rely on, to correct foundation problems and perform structural work, including even zero lot line jobs that require our expertise:

This estimate is based on architectural drawings and structural drawings and Architectural Engineering. This bid is for performing selective hard demolition, excavation and installation of new house addition reinforced concrete foundation work. Our price includes all labor and material to complete the work as per the itemized Scope of Work below.

Scope of Work
Foundation Work
Excavation
• Excavate for the installation of the new house foundation as per plans. All excavated spoils to stay on site and to be re-compacted at the existing rear yard (see additional cost provided for this task below). This price does not include any off-hauling charges for the excavation related generated spoils and the price is contingent upon the acceptance of the re-compaction portion of our proposal due to the construction sequence necessary to perform both jobs at the same time. All drainage work and other future trenching work (to be performed by others) at the rear yard area must be completed (by others) prior to commencing of operations if drainage contractor wishes to minimize his excavations scope of work.
Concrete/Hard Demolition
• Perform existing slab and selective house foundation demolition for the installation of the new foundation addition. Off-haul demolition debris from site.
Demolition exclusions: Driveway demolition, permits, retention, hazardous materials abatement, utility safe-offs, grading and backfilling (see additional cost provided).
Structural Shoring
• Install combination of post, driven pipe pile and crib towers with temporary beams to support main floor of house from line D thru E. Remove shoring system after house is re-supported on new perimeter and interior foundations (by others).
Shoring exclusions: Soft demolition or any shoring preparation other than removal of existing concrete slab (see cost provided above) for the installation of shoring towers (all preparation work to be provided by general contractor except as noted above.

New Concrete Foundation Installation per S.2
• Mobilize to jobsite. Demobilize.
• Supervision.
• Perform weekly cleanup.
• For the new house foundation, install new concrete foundation as per structural details and layout on sheet S.2.
• Install a new 4” thick reinforced concrete slab on grade over 15 mil Stego-Wrap vapor barrier and 6” of ¾” crushed gravel as per plans. Includes (2) under-slab drains below the slab per C1 & C2. Final outlet by others.
• Clean up debris and form materials from site.

Re-grading and Re-compaction of Rear Yard Area
• Scarify rear yard/patio area and remove (approx 2 to 3 inches) the existing grass on the existing rear yard area. Off-haul debris from site.
• Install all excavated spoils in 8” compacted lifts at the rear yard with the intention to level off the area as much as is possible per owners request. All native soils generated from construction excavations to be left on site re-compacted at the rear yard. No import-No off-haul is included.
Repairs @ Existing Foundations
• Saw-cut, remove and replace (5) sections of the existing house concrete foundation approx 6 ft in length x 2 ft tall x 12” thick. Includes saw-cutting both sides of the existing foundation, demolishing the mentioned sections and off-hauling of the demolition debris from site, excavate as needed to install new foundations based on parameters mentioned above (no structural instructions are available at the moment) and replace with new standard reinforced concrete grade beam tied to both sides via epoxy dowels (4 on each side). Existing mud sill plates to stay in place, no carpentry work is included in this price. It includes the installation of (2) new “J” bolts to attach the existing plates to the new grade beams (standard). Additional carpentry work to be charged separately if needed.

Notes:
• Elevations and layout to be provided by General Contractor or surveyor (hired by homeowner) performing the remainder of the project.
• All existing utility lines, heating ducts, electrical wiring, etc. must be removed from the underside of the basement level joists, (by others) prior to the installation of the shoring towers and the commencing of the demolition.
• All soft demolition to be provided by General Contractor.
• Access to rear yard thru existing driveway and side gate (wooden gate to be removed as well as driveway wooden structure for trucking access to the area in front of the (E) garage.
Qualifications and Clarifications
• Job is bid as package unless agreement to otherwise
• Includes one mobilization only.
• Prices are subject to adequate supply of rock, concrete, asphalt, PVC resins, PVC pipe, fittings at prices quoted at bid time and are good for 30 days.
• Proposal is based on working std 40 hours per week, 5 work days and mutually agreeable schedules.
• Progress payments every two weeks.
• Itemized prices are for reference purposes only and are not self supporting.
Exclusions
• Cost of plans, permits, bonds, testing and inspections.
• Increased costs of excavation or drilling due to hard rock, caving or underground water. (Hard rock excavation is defined as material that requires the use of pneumatically or hydraulically operated hammers or rams to excavate). (Hard rock drilling is defined as a penetration rate slower than 1 ft. in 5 minutes).
• Drainage or waterproofing work other than mentioned above.
• Excavations over the minimum parameter provided on drawings.
• Demolition of existing slabs over 4” thick or existing foundations over 12” deep.
• Driveway demolition or any other type of demolition not mentioned in our scope of work.
• Additional cost due to utility obstructions including any additional work on utilities or buried pipes.
• Landscaping work or any additional retaining walls, walkways, patios, tie steps or other concrete work not mentioned in our scope of work.
• Excavation of hazardous materials, underground tanks, or materials unacceptable at dumps.
• Architectural concrete or type of special concrete finish product.
• Supply of embedments other than foundation “J” bolts.

 

underpinning

Need underpinning to permanently stabilize home or level floors in Berkeley? Call 415-457-5658 for a prompt, reliable estimate from our experienced estimator. RWR has been installing underpinning in Berkeley for over 24 years. You will see our trucks and equipment working in Berkeley, Berkeley Hills, and Kensington.

Here’s the kind of detailed estimate you can rely on, to correct foundation problems and perform structural work, including even zero lot line jobs that require our expertise:

This estimate is based on structural drawings The bid is for the installation of a new reinforced concrete house foundation as per plans. This price includes labor and materials to complete job as per the itemized scope of work listed below.

Scope of Work
Structural Sheet S2.1
• Mobilize to site, on site supervision.
• Demolish and remove from site the existing sections of house foundation as highlighted on the drawings.
• Install combination of post, driven pipe pile and crib towers with temporary beams to support main floor of house and raise existing first floor of the house to new elevation.
• Excavate for and install new reinforced concrete grade beam foundations as per layout and structural details on sheet S2.1.
• Includes drilling and installing approx. (270) epoxy dowels to tie new slab/footing to perimeter existing foundations as per plans. (Other dowels not related to concrete embedments are not included in this bid)
• Remove shoring system after house is re-supported on new walls (4 weeks maximum after foundation is poured).

Notes:
• Elevations and layout to be provided supervised and approved by General Contractor or person acting as project supervisor.

Qualifications and Clarifications
• Job is bid as package unless agreement to otherwise.
• Includes one mobilization only.
• Prices are subject to adequate supply of rock, concrete, asphalt, PVC resins, PVC pipe, fittings at prices quoted at bid time and are good for 30 days.
• Proposal is based on working std 40 hours per week, 5 work days and mutually agreeable schedules.
• Progress payments every two weeks.

Exclusions
• Cost of plans, permits, bonds, inspections and testing.
• Any work on utilities including buried pipes.
• Increased cost of excavation due to hard rock, underground water or caving soils. (Hard rock excavation is defined as material that cannot be excavated with a conventional backhoe or excavator bucket).
• Soft demolition.
• Off-hauling of any demolition debris other than mentioned above.
• Hardware, hold-down bolts or any other embedment’s other than foundation bolts.
• Repair to landscaping or irrigation.
• Drainage or waterproofing.
• Cost of surveying if needed.
• Excavation of hazardous materials, underground tanks, or materials unacceptable at dumps.

 

underpinning

Need underpinning to permanently stabilize home or level floors in Berkeley? Call 415-457-5658 for a prompt, reliable estimate from our experienced estimator. RWR has been installing underpinning in Berkeley for over 24 years. You will see our trucks and equipment working in Berkeley, Berkeley Hills, and Kensington.

Here’s the kind of detailed estimate you can rely on, to correct foundation problems and perform structural work, including even zero lot line jobs that require our expertise:

Mobilization and Layout

• Mobilize to jobsite.
• Layout site per plans
• Daily Cleanup
• Final Cleanup

Install Funicular
• Install Funicular to assist in repair of hillside
• Install temporary car on funicular (Price does not include final car for funicular after construction work is completed).

Clearing and Grubbing
• Install erosion control measures per ILS Associates plans.
• Include debris catchment walls to be placed below work areas as work progresses
• Filter fabric to cover beach area during construction (All debris is to be cleaned at end of each day).
• Remove loose soil to accommodate installation of the soil nail wall. The excavated face shall be cleaned of loose materials. Keep this to minimum.
• Remove the material from the site and off haul.

Existing Parking Deck
• Reinforce existing parking structure as required.
• Includes removal and reinstallation of concrete pad at end of construction

Landing #1 and Landing #2
• Drill and install four (4) 18” concrete reinforced piers to support two (2) new landings per plans and specifications.
• Install perimeter footing and retaining wall for each landing.
• Install Rip Rap in front and side of lower landing as directed by engineer.

Barge Staging
• Stage bay barges at bottom of cliff to assist in construction project

Tiebacks
• Drill eighty one (81) 8” diameter hole x the designated depth per plans and specifications. (Final Depth subject to soil engineer approval)
• Install eighty one (81) 1 inch double corrosion tiebacks with bonded length and non bonded length per plans and specifications (see table).
• Place and install grout using standard grout mix
• Tieback is to extend at least 2 ft from face of hole (to be cut later)
• Install 1-1/4” thick by 8” x 8” plates, beveled washer and nuts.
• Test and pull each tieback per plans and specifications locking tieback off after initial matt of Shotcrete has been placed.

Excavate
• Excavate hillside to allow for installation of top edge, side edge and bottom edge (approximately 3 ft deep x 1 ft deep.
• Spoils are to be removed from site and off hauled.

Drainage
• Install geocomposite drain (Miradrain 6000) in chimney drain strips per plans and specifications S2.2.
• Terminate Miradrain at bottom into drain rock per plans and specifications S5.1.
• Include rock pocket on side edges and bottom edge with 4” SDR 35 perforated drain pipe per plans and specifications.
• Provide for 3” weep holes per plans and specifications above Shotcrete base footing 6/S5.1.
• Include perforated pipe at top and bottom of landscape pockets per plans and specifications.
• Connect all perforated pipe to 4” SDR 35 tight lines
• Install four 6” SDR 35 tight lines from top of wall connecting to D.I. drainage in V ditch and exit water to the bottom picking up 4” lines appropriately.
• Provide galvanized sweep section through wall footing at base of hill and discharge into catch basin filled with 3” cobbles.

Shotcrete
• Install Shotcrete edge footings per plans and specifications S2.1 and detail drawings 3/S5.1, 7/S5.1 and 8/S5.1.
• Install Shotcrete base footing 2.5 ft x 2.5 ft per plans and specifications S2.1 and 6/S5.1.
• Install approximately twenty two (22) landscape pockets per plans and specifications S2.1 and 5/S5.1
• Install double face of epoxy coated rebar using #5 rebar as shown on plans and specifications S2.1 and S5.1.
• Where tieback occurs provide additional reinforcement per plans and specifications 1/S5.1
• Install 8 inch thick Shotcrete per plans and specifications S2.1 and 4/S5.1.
• Install a second coat of Shotcrete to 10 total inches thick as indicated on plans and specifications
• Shotcrete to have 4800 psi minimum at 48 days.
• Shotcrete to be placed in accordance of Section 1925 of the 2001 CBC.
• Shotcrete to be natural finish with color applied after installation
Architectural Shotcrete
• After structural Shotcrete has been installed apply an additional Shotcrete layer on average 2 inches thick to appear as natural stone and made to blend into existing site.
• Apply stain to Shotcrete to match natural existing terrain color.
Terrace
• Excavate and install concrete reinforced continuous strip footing 1 ft 2 in wide by 1.5 ft deep and a maximum of 4 ft high for terrace per plans and specifications S2.1 and S5.2.
• Note: Price does not include future metal work, framing or metal deck with concrete slab. See alternative allowances below.