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.