Correspondence CIVIL GENERAL CONTRACTOR 1 840 WEST 1 6TM STREET
541- 298 -8025 THE DAL_LE-_s 09 97058
541- 298 -6980 rx CCl_ it 63613
CONSTRUCTION
COMPANY, INC.
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July 14, 2010 , ,`�(`� AC\IC)
Zen Dutson 1N4
City of Tigard
13125 SW Hall Blvd
Tigard, OR 97223
RE: Fanno Creek Boardwalk
Pile Driving Procedure
To Whom It May Concern:
As requested,. we submit the following procedure to drive the piling for the
boardwalk;
1. The boardwalk is supported by 2ea 3" gals. pipe piling at 8' centers.
2. Each pile has a design load of 50001b, including dead load and 1001b /sf live
load.
3. The piling were driven to 10,000lb or 5 ton capacity.
4, A hydraulic jack with a pressure gauge was used to determine the actual
load. 4331psi equated to 10,000lb of load.
5. The pile were driven and tested acceptably, meeting the design
requirements.
6. As time goes on, the pile will set or freeze and the pile resistance will
increase significantly.
This procedure was performed and witnessed by Zen Dutsen, Jeff Peck /City of
Tigard, Vello, VAK Engineering, and Paul and Nick of Civil Construction.
Everyone in attendance was satisfied with the acceptable results.
Since - ly,
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