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. This bid is for the excavation and installation of new house reinforced concrete foundation on piers per S2.1.
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
Excavation
• Grub and clear work area for the installation of the new house foundation.
• Excavate for the installation of the new house foundation as per plans. Off-haul excavated spoils from site.
Mobilization and Supervision
• Mobilize to jobsite. Demobilize.
• Supervision.
• Perform weekly cleanup.
New Concrete Foundation Installation per S2.1
• For the new house foundation, install new perimeter and interior stem walls, perimeter grade beams and footings as per structural details and layout on sheet S2.1.
• Install house and garage new 6” thick reinforced concrete slabs over 10 mil vapor barrier and 4” of ¾” crushed gravel. Includes Miradrain 6000 drainage mat under new house slabs + 12”x12” collector drainage pocket as per plans.
• Clean up debris and form materials from site.
Drill and Install Piers
• Drill and install (38) 18” diameter x 8 ft. deep, (8) 18” diameter x 12 ft. deep + (2) 18” diameter x 16 ft. deep maximum reinforced concrete piers as per layout on sheet S2.1. Remove drilling spoils from site.
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.
• 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).
• Additional cost due to utility obstructions including any additional work on utilities or buried pipes.
• Driveway, walkways, and other concrete work not shown on S2.1.
• Drainage or waterproofing work other than drainage under the new house structural slab shown on S2.1.
• Grading, erosion control, hydro-seeding or any additional work not related to the installation of the new house foundation per S2.1.
• Landscaping work or any additional retaining walls, walkways, patios, tie steps or other concrete work not mentioned in our scope of work.
• Re-grading of existing soils or re-compaction of the same (if required additional cost will apply) for the installation of new foundations or structural up-grades.
• Excavation of hazardous materials, underground tanks, or materials unacceptable at dumps.
• Architectural concrete or type of special concrete finish product.
• Surveying and Layout.
• Supply of embedments other than foundation bolts.
