RWR has done a lot of work in the Mill Valley area, including foundation repairs, retaining walls and drainage repairs. 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 information provided via fax to RWR Construction Inc. The bid is providing an allowance for a total of 24 hours of portable drilling operations plus the installation of (6) helical piers 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

Helical pier installation

• Mobilize to jobsite
• After all existing structures/obstruction and excavations are performed by GC (or by others), RWR to install a total of (6)/10 ft. deep maximum Foundation-SupportWorks HP-287 helical piers. Each helical piers includes (1) 5 ft. double blade (10”-12”) galvanized lead plus (1) 5 ft. galvanized extensions and (1) galvanized bracket assembly as per plans. Field testing (pull testing or compression testing) is not included.

Helical Pier Notes:

• Elevations, layout and checking and confirmation of secured batter boards to be provided by General Contractor performing the remainder of the project.
• Structural shoring, underpinning and earth shoring are not included.
• Additional footage for helical pier depths
• Pull testing or compression testing of helical piers is not included in the main estimate (base bid) and the amount of the helical piers that can be tested will depend on requirements by the project’s engineer. If pull testing or compression testing are required, testing will be performed on a time and material basis.

Testing Note: Installation will be made using torque conversion charts as an equivalent to pull test operations. The conversion charts produce installation torque conversion ratings equal to achieved final torque capacities. Proposed Helical pier is based on 22,000 lb. design capacity.

• For re-calibration of the testing jack (If required by engineer)

Drilling Allowance

• Mobilization to site.
• Perform portable drilling work for (3) days (a total of 24 hours included) for drilling (10) 18” diameter x 14 ft. deep maximum with portable drilling equipment.

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

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.
• Progress payments every two weeks.

Exclusions

• Cost of plans, permits, bonds, testing and inspections.
• Any additional work as a result of 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 five minutes.
• House (soft) or existing structures demolition or removal of related debris from site.
• Metal I-beams/metal work or any related not mentioned above.
• Provide or install of shrink/leveling grout.
• Additional work related to soil placement at the new landscaping tiered walls (by others).
• Landscaping concrete, concrete curbs, walls or any additional concrete work not outlined in our proposal.
• Increased cost of helical installation due to rubble, boulders, fill or any unknown underground obstruction (soils report not available for this project).
• Additional work related to new parking area, pavers, grading or any work not related to the scope of work mentioned above.
• Any work on utilities, including buried pipes.
• Excavation of hazardous materials, underground tanks, or materials unacceptable at dumps.
• Architectural concrete, color concrete or any type of special concrete finish product.
• Additional cost due to utility obstructions including any additional work on underground utilities or buried pipes.
• Supply of embedments other than foundation “J” bolts.

RWR has done a lot of work in the Mill Valley area, including foundation repairs, retaining walls and drainage repairs. 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 plans prepared by Structural Engineer. The bid is for the installation of drilled cast-in-place reinforced concrete piers to stabilize the downhill side of the house 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
• Mobilize to site.
• Install a temporary chute for spoils off-hauling.
• Demolish and remove from site an existing wooden and concrete pathway as per plans. Remove debris from site.
• Drill and install (7) 18” diameter x 14 ft. deep maximum reinforced concrete piers along downhill side of house and to the northern side of the house foundation as per plans. Sequential installation is required. Off-haul spoils from site.
• Excavate for and install (4) 2 ft. wide x 4.5 ft. long x 1.5 ft. deep and (3) 2ft. wide x 3 ft. long x 1.5 ft. deep reinforced concrete pier caps under existing foundation that are connected to the top of the piers as per plans.
• Repair (4) existing foundation cracks with Simpson epoxy ETI-GV-22 injection as per manufacturers recommendations prior to exterior foundation work.
• Temporarily shore the northern house entry to replace the existing inadequate isolated support with a new reinforced concrete grade beam as per detail 6/S1. Includes a new section of framing cripple wall to tie to new upper structure as per plans.
• Excavate and install approx. 43 linear ft. of reinforced concrete grade beam along the exterior of the existing house foundation and a new walkway perimeter 6” thick concrete stem wall as per plans. Includes approx. (38) reinforced epoxy dowels to tie new to existing foundation and weep holes thru new foundation for water seepage as per plans.
• Backfill walkway area with ¾ crushed rock as per detail 3/S1 to cover a minimum of 4” over new underpinning haunches.
• Install drainage lines as per plans and a new drainage dissipator a maximum of 2 ft. wide x 3.5 ft. long x 2 ft. deep (detail not provided).
• Clean up site and remove RWR construction debris from site.

Notes
• Homeowner’s permission to park RWR’s drilling power pack at the exiting garage approach/entry for the duration of the drilling procedures is necessary.

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.
• Progress payments every two weeks.

Unit Prices
• Additional footage for drilled and installed piers
Exclusions
• Cost of plans, permits, bonds, testing and inspections.
• Increased costs of excavation or drilling due to hard rock, underground water or caving soils. (Hard rock drilling is defined as a penetration rate slower than 1ft. in 5 minutes). (Hard rock excavation is defined as material that requires the use of a pneumatic or hydraulic breaker to excavate).
• Any work on utilities including buried pipes.
• Removal of spoils from site not mentioned above.
• Structural/Earth shoring.
• Repair to landscaping or irrigation.
• Excavation of hazardous materials, underground tanks, or materials unacceptable at dumps.

RWR has done a lot of work in the Mill Valley area, including foundation repairs, retaining walls and drainage repairs. 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 drawings. The bid is for the installation of a new reinforced concrete foundation as per plans plus house sub-drainage work except CONC-1 and CONC-2 slabs.

Scope of Work
House Foundation per S-2.0 & S2.1
• Mobilize to jobsite + Supervision.
• After garage structural shoring is installed (by others), demolish and remove from site existing garage concrete foundation plus existing hardscape elements (see earth shoring additional cost provided below) specifically for the installation of the new reinforced concrete work as per current drawings including drainage rock pockets behind the new garage wall (see alternate for garage board formed walls + alternate for garage shotcrete installation). Off haul demolition debris from site. All soft demolition to be performed by others.
• Excavate for and install new reinforced concrete grade beams, footings, CMU walls and rough concrete stairs per layout and structural details on sheet S-2.0 & S-2.1. Off-haul related spoils from site.
• Includes the installation of Paraseal waterproofing membranes and Miradrain 6000 drainage membranes for all new foundation sub-drainage systems as called on structural drawings for the garage structure and the CMU walls. Outlet to one side of the new garage.
• Clean-up site and remove RWR related construction debris from site
Base bid Broken-down prices provided for illustrative purposes.
• Supervision & Mobilization
• Hard demo & Of-haul
• Excavations & Off-haul
• Concrete foundations & CMU Walls
• WP & Drainage + Backfill and re-compaction
Add-on cost/Earth Shoring
• Preliminary cost for earth shoring installation using metal I-beams & wood lagging along the north and east sides of the existing garage structure. Engineering not included.

Notes:
• Elevations 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 for re-compaction materials (if needed) is not included in this estimate.
• Drainage and waterproofing membranes are based on Paraseal and Miradrain 6000
• CONC-1 & CONC-2 is not included. No architectural concrete is included.
Note: This bid assumes RWR will be performing services as a Sub-contractor to a General Contractor. Bid assumes contract will utilize standard RWR contractual provisions. RWR reserves the right to accept or reject General Contractor’s contractual provisions.

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.
• Progress payments every two weeks.

Exclusions
• Cost of plans, permits, bonds, testing and inspections.
• Any additional work as a result of 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 five minutes.
• Metal I-beams/metal work or any related not mentioned above.
• Provide or install of shrink/leveling grout.
• Earth/Structural shoring (see additional cost provided).
• House drainage work (other than foundation sub-drainage work).
• Excavation of hazardous materials, underground tanks, or materials unacceptable at dumps.
• CONC-1 & CONC-2 slabs/topping slabs/architectural finishes.
• Architectural concrete, color concrete or any type of special concrete finish product.
• Additional cost due to utility obstructions including any additional work on underground utilities or buried pipes.
• Supply of embedments other than foundation “J” bolts.

RWR has done a lot of work in the Mill Valley area, including foundation repairs, retaining walls and drainage repairs. 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 work performed by RWR , demonstrating the level of expertise you want for a job so important to you.

Pipe Pile & Foundation Installation Example Of RWR Competencies

This estimate is based on preliminary architectural and structural drawings. The bid is for the installation of a new reinforced concrete foundation as described below.

Scope of Work

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

Mass + Foundation Excavation
• Excavate and provide new rough grading (crawl space areas) where new foundations are to be installed for the new footprint of the house as shown on drawings.
• Excavate for the installation of the new house and garage foundation as per plans.
• Stockpile excavated spoils on site within property limits.

Pipe Pile Installation @ Existing House Foundation
• Layout pipe pile locations with general contractor, to be approved by engineering prior to installation.
• Install (27) x a maximum of 20’ deep, 3” diameter hot-dipped galvanized schedule 80 (Fy=36ksi) heavy duty pipe piles, driven into competent bearing strata/practical refusal, defined by a penetration rate of ½” or less per minute for five minutes or as other wise accepted by the Engineer. (See additional footage installation provided below, if needed).
• Fill inside of pipe pile with a neat sand/cement grout mix all the way to the top of the pipe.
• Additional/deductive grouted pipe pile depth cost per foot, respectively.

Shear Plate Assembly Installation @ Existing House Foundation
• Weld a new 7”x 9” x ¼ ”steel pipe pile shear plate/cap assembly on top of each pipe.
• At each pile location, install (4) ½” diameter steel dowels into the existing foundation and connect to new shear plate/cap assembly.

Pipe Pile Installation @ New House Foundation
• Layout pipe pile locations with general contractor, to be approved by engineering prior to installation.
• Install (47) x a maximum of 20’ deep, 3” diameter hot-dipped galvanized schedule 80 (Fy=36ksi) heavy duty pipe piles, driven into competent bearing strata/practical refusal, defined by a penetration rate of ½” or less per minute for five minutes or as other wise accepted by the Engineer. (See additional footage installation provided below, if needed).
• Fill inside of pipe pile with a neat sand/cement grout mix all the way to the top of the pipe.
• Additional/deductive grouted pipe pile depth cost per foot, respectively.

Plate Assembly Installation @ New House Foundation
• Weld a new 7”x 9” x ¼ ”steel pipe pile plate/cap assembly on top of each pipe with (2) ½ “ anchor bolts as per structural detail 1/S3.1.

Drill and Install Piers @ Outdoor Fountain
• Drill and install (8) 18” diameter x 16 ft. deep maximum, reinforced concrete piers. Stockpile all drilling spoils on site. No Off-hauling included
• For additional 18” diameter pier lengths-add per linear ft.
• For 18” diameter pier depth deductions subtract per linear ft.

New House Concrete Foundation + Slab Installation
• Install new house reinforced concrete foundation grade beams, tie beams and stem walls as per layout on structural sheet S2.1 and structural detail assigned. Includes (60) epoxy dowels to attach new to existing foundation @ intersections as per plans.
• As per new first floor framing plan, install approx. 679 square ft. (square footage calculations based on “foundation plan” layout) of 5” thick reinforced concrete slab, with #4 @ 12” o.c., e.w. over 2” of clean sand, 10 mil vapor barrier and 4” of ¾” crushed gravel.
• For the new out door fountain and entry walkway, install approx. 701 square ft. (square footage calculations based on “foundation plan” layout) of 5” thick reinforced concrete slab, with # 4 @ 12” o.c., e.w. over 2” of clean sand, 10 mil vapor barrier and 4” of ¾” crushed gravel.
• Clean up RWR’s related construction debris from site.

Driveway Area
Concrete Footing on Piers
• Excavate for the installation of a new auto court footing approx. 120 ft long x 1.5 ft deep x 1.5 ft wide. Stockpile excavated spoils on site.
• Drill and install (10) 18” diameter x 16 ft. deep maximum, reinforced concrete piers. Stockpile all drilling spoils on site. No Off-hauling included.
• Install reinforced concrete footing as per detail 16/S1.2. CMU wall not included.
Pool House
Foundation Work
• Excavate for the installation of a new pool house foundation as per layout provided on sheet S2.5 and structural detail assigned. Stockpile excavated spoils on site.
• Drill and install (2) 18” diameter x 16 ft. deep maximum, reinforced concrete piers. Stockpile all drilling spoils on site. No Off-hauling included.
• Install new reinforced concrete perimeter and interior footings, perimeter stem walls plus isolated fireplace footing as per dimensions provided on drawings. Pipe piles or piers are not included for the pool house foundation.
• As per new pool house foundation/floor framing plan, install approx. 820 square ft. (square footage calculations based on “foundation plan” layout) of 5” thick reinforced concrete slab, with #4 @ 12” o.c., e.w. over 2” of clean sand, 10 mil vapor barrier and 4” of ¾” crushed gravel.

Foundation Re-leveling
Side
• Re-leveling the affected area (approx. 25 linear ft @ the North & East side of the existing library area) is included, however due to the settlement of the existing foundation and existing conditions the repairs may result in cracked foundations, uneven floor finishes as well as other irregularities. RWR is not including repair of same in this estimate.
• It may not be possible to re-level existing foundation within specified tolerances (½ of an inch maximum) due to existing conditions.
• If bottom of foundation is deeper than 2ft. below existing grade, RWR will charge additional cost for excavation.

Note: re-leveling and attaching the existing foundation to the new pipe piles (see inclusions mentioned above) is included. If structural engineer requires to excavate and install a reinforced concrete haunch under the affected areas there will be additional cost pending structural detail and recommendations.

Notes
• Elevations, secured batter boards, hubs and layout to be provided by General Contractor performing the remainder of the project.
• Pipe Pile installation refusal rate is ¼ to ½ inch depth (or less) per minute for a sustained 5 minute period.

Unit Pricing
• For additional 18” diameter pier lengths-add per linear ft.
• For 18” diameter pier depth deductions subtract per linear ft.
• Additional/deductive grouted pipe pile depth cost per foot, respectively.

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.
• Progress payments every two weeks.

Note: This bid assumes RWR will be performing services as a Sub-contractor to a General Contractor. Bid assumes contract will utilize standard RWR contractual provisions. RWR 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).
• Driveway/garage apron or any additional flat work not mentioned above.
• Any work on utilities including buried pipes.
• Removal of soil from site.
• Landscaping/Hardscaping, CMU walls, concrete work as sidewalks, stairs or any other concrete work not mentioned above.
• Waterproofing and drainage.
• Grading, backfilling or re-compaction.
• Demolition hard or soft.
• Excavation of hazardous materials, underground tanks, or materials unacceptable at dumps.
• Surveying and Layout.
• Supply of embedments other than foundation bolts.

RWR has done a lot of work in the Mill Valley area, including foundation repairs, retaining walls and drainage repairs. 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.

Pipe Pile & Foundation Installation Example Of RWR Competencies

This estimate is based on preliminary architectural and structural drawings. The bid is for the installation of a new reinforced concrete foundation as described below.
Our price includes all labor and material to complete the work as per the itemized Scope of Work below.

Scope of Work
New House Foundation
Mobilization and Supervision
• Mobilize to jobsite. Demobilize.
• Supervision.
• Perform weekly cleanup.

Mass + Foundation Excavation
• Excavate and provide new rough grading (crawl space areas) where new foundations are to be installed for the new footprint of the house as shown on drawings.
• Excavate for the installation of the new house and garage foundation as per plans.
• Stockpile excavated spoils on site within property limits.

Pipe Pile Installation @ Existing House Foundation
• Layout pipe pile locations with general contractor, to be approved by engineering prior to installation.
• Install (27) x a maximum of 20’ deep, 3” diameter hot-dipped galvanized schedule 80 (Fy=36ksi) heavy duty pipe piles, driven into competent bearing strata/practical refusal, defined by a penetration rate of ½” or less per minute for five minutes or as other wise accepted by the Engineer. (See additional footage installation provided below, if needed).
• Fill inside of pipe pile with a neat sand/cement grout mix all the way to the top of the pipe.
• Additional/deductive grouted pipe pile depth cost per foot, respectively.

Shear Plate Assembly Installation @ Existing House Foundation
• Weld a new 7”x 9” x ¼ ”steel pipe pile shear plate/cap assembly on top of each pipe.
• At each pile location, install (4) ½” diameter steel dowels into the existing foundation and connect to new shear plate/cap assembly.

Pipe Pile Installation @ New House Foundation
• Layout pipe pile locations with general contractor, to be approved by engineering prior to installation.
• Install (47) x a maximum of 20’ deep, 3” diameter hot-dipped galvanized schedule 80 (Fy=36ksi) heavy duty pipe piles, driven into competent bearing strata/practical refusal, defined by a penetration rate of ½” or less per minute for five minutes or as other wise accepted by the Engineer. (See additional footage installation provided below, if needed).
• Fill inside of pipe pile with a neat sand/cement grout mix all the way to the top of the pipe.
• Additional/deductive grouted pipe pile depth cost per foot, respectively.

Plate Assembly Installation @ New House Foundation
• Weld a new 7”x 9” x ¼ ”steel pipe pile plate/cap assembly on top of each pipe with (2) ½ “ anchor bolts as per structural detail 1/S3.1.

Drill and Install Piers @ Outdoor Fountain
• Drill and install (8) 18” diameter x 16 ft. deep maximum, reinforced concrete piers. Stockpile all drilling spoils on site. No Off-hauling included
• For additional 18” diameter pier lengths-add per linear ft.
• For 18” diameter pier depth deductions subtract per linear ft.

New House Concrete Foundation + Slab Installation
• Install new house reinforced concrete foundation grade beams, tie beams and stem walls as per layout on structural sheet S2.1 and structural detail assigned. Includes (60) epoxy dowels to attach new to existing foundation @ intersections as per plans.
• As per new first floor framing plan, install approx. 679 square ft. (square footage calculations based on “foundation plan” layout) of 5” thick reinforced concrete slab, with #4 @ 12” o.c., e.w. over 2” of clean sand, 10 mil vapor barrier and 4” of ¾” crushed gravel.
• For the new out door fountain and entry walkway, install approx. 701 square ft. (square footage calculations based on “foundation plan” layout) of 5” thick reinforced concrete slab, with # 4 @ 12” o.c., e.w. over 2” of clean sand, 10 mil vapor barrier and 4” of ¾” crushed gravel.
• Clean up RWR’s related construction debris from site.

Driveway Area
Concrete Footing on Piers
• Excavate for the installation of a new auto court footing approx. 120 ft long x 1.5 ft deep x 1.5 ft wide. Stockpile excavated spoils on site.
• Drill and install (10) 18” diameter x 16 ft. deep maximum, reinforced concrete piers. Stockpile all drilling spoils on site. No Off-hauling included.
• Install reinforced concrete footing as per detail 16/S1.2. CMU wall not included.
Pool House
Foundation Work
• Excavate for the installation of a new pool house foundation as per layout provided on sheet S2.5 and structural detail assigned. Stockpile excavated spoils on site.
• Drill and install (2) 18” diameter x 16 ft. deep maximum, reinforced concrete piers. Stockpile all drilling spoils on site. No Off-hauling included.
• Install new reinforced concrete perimeter and interior footings, perimeter stem walls plus isolated fireplace footing as per dimensions provided on drawings. Pipe piles or piers are not included for the pool house foundation.
• As per new pool house foundation/floor framing plan, install approx. 820 square ft. (square footage calculations based on “foundation plan” layout) of 5” thick reinforced concrete slab, with #4 @ 12” o.c., e.w. over 2” of clean sand, 10 mil vapor barrier and 4” of ¾” crushed gravel.

Foundation Re-leveling
Side
• Re-leveling the affected area (approx. 25 linear ft @ the North & East side of the existing library area) is included, however due to the settlement of the existing foundation and existing conditions the repairs may result in cracked foundations, uneven floor finishes as well as other irregularities. RWR is not including repair of same in this estimate.
• It may not be possible to re-level existing foundation within specified tolerances (½ of an inch maximum) due to existing conditions.
• If bottom of foundation is deeper than 2ft. below existing grade, RWR will charge additional cost for excavation.

Note: re-leveling and attaching the existing foundation to the new pipe piles (see inclusions mentioned above) is included. If structural engineer requires to excavate and install a reinforced concrete haunch under the affected areas there will be additional cost pending structural detail and recommendations.

Notes
• Elevations, secured batter boards, hubs and layout to be provided by General Contractor performing the remainder of the project.
• Pipe Pile installation refusal rate is ¼ to ½ inch depth (or less) per minute for a sustained 5 minute period.

Unit Pricing
• For additional 18” diameter pier lengths-add per linear ft.
• For 18” diameter pier depth deductions subtract per linear ft.
• Additional/deductive grouted pipe pile depth cost per foot, respectively.

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.
• Progress payments every two weeks.

Note: This bid assumes RWR will be performing services as a Sub-contractor to a General Contractor. Bid assumes contract will utilize standard RWR contractual provisions. RWR 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).
• Driveway/garage apron or any additional flat work not mentioned above.
• Any work on utilities including buried pipes.
• Removal of soil from site.
• Landscaping/Hardscaping, CMU walls, concrete work as sidewalks, stairs or any other concrete work not mentioned above.
• Waterproofing and drainage.
• Grading, backfilling or re-compaction.
• Demolition hard or soft.
• Excavation of hazardous materials, underground tanks, or materials unacceptable at dumps.
• Surveying and Layout.
• Supply of embedments other than foundation bolts.

RWR has done a lot of work in the Mill Valley area, including foundation repairs, retaining walls and drainage repairs. 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 an extensive foundation repair performed by RWR in the Mill Valley area, just so you can see the level of expertise you want for a job like this:

Drilling, Concrete Piers and Slab

This is an estimate based on unsigned and undated plans provided by contractor. The scope of work includes drilling, installing concrete and steel in pier hole. 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
• After existing building has been demolished by others mobilize to jobsite with portable drilling rigs along with other necessary equipment to complete job (See notes below).
• Layout to be completed by others per plans and specifications.
• Daily Cleanup
• Final Cleanup

Piers
• Drill three (3) 18” diameter x 17 ft depth maximum and two (2) 18” diameter x 14 ft depth maximum pier holes with portable drill rig. See drilling conditions and exclusions. Final depths to be determined by soils engineer.
• Install cage per plans and place concrete in hole per plans.
• Includes sono tube as required
• Off haul pier spoils

Slab
• Install approximately 425 sq. ft of 4 inches of light weight concrete over plywood prepared by others per plans. #4 reinforcement @ 18 inches e.w. No waterproofing included.

Qualifications and Clarifications

• Job is bid as package.
• Includes two mobilizations only.
• Prices are subject to obtaining 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.
• Not responsible for survey lines. Survey of property lines must be done by licensed surveyor. Survey points must be provided
• Price is preliminary subject to final plans for construction

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).
• Additional cost as a result of unknown obstructions
• 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 or layout
• Landscaping or irrigation
• Excludes electrical and plumbing
• Any earth shoring not included
• Any drainage work
• Embedment into concrete including brackets except J bolts
• Permeable concrete