Wendy:
Phase 1 items should be much less expensive than phase 2 items. Phase 1 will include a team, and in Houston TX, would be about 3% of the construction cost estimate. Phase 2 is more complicated. Given that it is construction observation by what would probably be a professional engineer, with probably lots of overtime, you should be looking in the range of the median bill out rate for a civil engineer times 2. Generally this would mean the median salary x 2.5-3.5 x 2.. You need an engineer with a PE and 5-10 years experience. You can probably quarter this price by hiring someone for your staff to do all this stuff.
That being said, every project is different, and if full time observation and field engineering judgement is not required, you should be able to reduce the cost significantly, probably removing the price of the second person for overtime at least.
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Dwayne Culp, Ph.D., Ph.D.,M.ASCE
Culp Engineering, LLC
Rosenberg TX
(713)898-1977
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