Reproduced from the holdings of the National Archives HOUMES'S. SRRRVER, 1RE!2” Odi 7 Y ENGINEERS tO. Resident Engineer FROM: L. 5. Hammond jon. 884 _ xe._Survey Records_ . pate.__May2451954 Referring to your HN 1533 it 1s important that this office have sufficient infor mation available on the survey methods used and accuracy obtained in the positioning of stations 10, 30, 40 and 90 to assure efficient future design and to answer any questions of tha client in this regard. mation should be sulmitted for this purpose. The following infor (1) Summary of methods and procedure for each of the four stations. (2) Analysis of the results of positioning by intersection of theodolite angles. This should include the coordinate relation of each theodolite position check from which the mean or final valves of a station wera obtained, (3) Copies of field notes and computations related to the positioning of each station, (4) Copies of field notes and computations of any expansion of primary horizontal accomplished to provide local control for positioning of these stations, (5) Copies of the results obtained by any observations to determine the yaw, roll, pitch and horizontal motion of a station around a fixed point. Item (1) 1s required as soon as possible for inclusion in the narrative portion of the survey seation of the completion report. The remaining items should be sutmitted as early as the information can be compiled as some of this information may be inoluded in the report. oe BEST COPYAVAILABLE NWATIOVAL ARCHIVES REPOSITORY L4C/Fic sou THWES TT KEG ION COLLECTION AG 366 ATOMME EMEKGY Cortit[sSiOW BOX No. 129664 608) Al633q SU Ve VS FOLDER 2WE%T 4 1953 OW LSH; vr ect { Project Manazer, o/s \ LS, Hanmond Project Engineering File Sentral Pile (2) Engineering File | 326-65 yoI?e :