(a)  If a subsurface investigation report is available on a project, a copy may be obtained from the Department by the prospective bidders upon request.

(b)  The subsurface investigation is made for the purpose of study, planning, and design, and not for construction or pay purposes. The various field boring logs, rock cores, and soil test data available may be reviewed or inspected in Raleigh at the office of the Geotechnical Unit. Neither the subsurface investigation report nor the field boring logs, rock cores, or soil test data shall be part of the contract.

(c)  General soil and rock strata description and indicated boundaries are based on geotechnical interpretation of all available subsurface data and may not necessarily reflect the actual subsurface conditions between borings or between sample strata within the borehole. The laboratory sample and the in situ (in‑place) test data can be relied on only to the degree of reliability inherent in the test. The observed water levels or soil moisture conditions indicated in the subsurface investigation are as recorded at the time of the investigation. These water levels or soil moisture conditions may vary considerably with time according to climatic conditions including temperature, precipitation and wind, as well as other nonclimatic factors.

(d)  Details shown on the subsurface investigation reports are preliminary only; the final design details may be different. For bidding and construction purposes, the contract contains the documents for final design information on this project. The Department shall not warrant or guarantee the sufficiency or accuracy of the investigation made, nor the interpretations made or opinions of the Department as to the type of materials and conditions that may be encountered. The bidder or subcontractor shall make such independent subsurface investigations as he deems necessary to satisfy himself as to conditions to be encountered on this project. The contractor shall have no claim for additional compensation or for an extension of time for any reason resulting from the actual conditions encountered at the site differing from those indicated in the subsurface information.


History Note:        Authority G.S. 136‑18(1); 143B‑350(f)(3);

Eff. March 1, 1984;

Amended Eff. April 1, 1984;

Recodified from 19A NCAC 2D .0825;

Amended Eff. February 1, 2008; October 1, 1993;

Pursuant to G.S. 150B-21.3A, rule is necessary without substantive public interest Eff. September 6, 2016.