The Administrative Records series includes contracts (1901-1961), correspondence (1887-1937), cost estimates, an Engineer’s field book, and some stray files.

Contracts sometimes include monthly cost estimates and certification by the contractor that the work was completed. Some contracts are copies; some are labeled “original.” In many cases, a signed and notarized copy of the contractor’s bonded status and/or insurance coverage is included. Other correspondence related to the project may also be included. Rarely are plans attached to the contract. A separate index is attached to this inventory of the contracts arranged by subject; therein alphabetically by contract date.

Outgoing correspondence (1881-1937) is arranged alphabetically in bound letter press volumes. Cost estimates for the oldest period, 1887-1928, can be found mixed in the correspondence subseries and are therefore arranged chronologically in the volume. A volume of cost estimates, 1929-1939, is a chronological list and many different types of projects are included.