| Contract for reconstruction of RW highway bridge awarded | Humboldt Times | MF 10 | 9/14/1937 | 1 | 3 | Legal Notice | Big Lagoon | Contract, Rw Highway, Bridge, Awarded |
| Contract for resurveying Hoopa Indian Reservation | Humboldt Times | MF 10 | 5/11/1909 | 5 | 3 | Contract | Hoopa | Hoopa Indian Reservation, Resurveying, G.W. Pearsons |
| Contract for surface 12.7 miles of 101 | Humboldt Times | MF 10 | 7/20/1930 | 1 | | Road work | Del Norte county Cal. line | Surface 101, Del Norte County, Wilson Creek Road |
| Contract secured by Pacific Construction Company to build new jail | The Daily Humboldt Times | MF 10 | 1/3/1908 | 3 | 1 & 2 | Legal Notice | | New Jail, Contract, Pacific Construction Company |
| Contract signed for New Eureka High School gym & pool | Humboldt Times | MF 10 | 7/3/1948 | 6 | | Contract | Eureka | Eureka High School, Contract, Fred Mauer |
| Contract to pave 101 section was awarded | The Humboldt Standard | MF 9 | 7/17/1924 | 6 | 2 | Road work | Eureka Arcata | Contract, Knapp Paving Company |
| Contract work being overseen by Mr. H.M. Mercer | Humboldt Times | MF 10 | 10/27/1904 | 8 | | Contract work | Shively Bluff | Mr. H.M. Mercer, Shively Bluff, Santa Fe Railroad, Contract Work |
| Contract work for dredging out several slough lower Eel near the mouth | The Humboldt Times | MF 10 | 8/29/1916 | 1 | 3 | Contract work | Lower Eel McNulty Slough Hawks Slough | Contract, Hand-Built Dikes, Dredge, George La. Montugne |
| Contract work for new state highway north of Orick almost completed | Humboldt Times | MF 10 | 9/5/1928 | 8 | | Contract work | Orick | Orick, Contract, New State Highway |
| Contractor Cris Kejp placing 1000 c.y. crushed rock | Humboldt Times | MF 10 | 8/29/1930 | 2 | | Road work | Fickle Hill road | Contract Cris Kjep, 1000C.Y. Crushed Rock, Fickle Hill Road |
| Contractor digging to install new storm sewer down 5th, hit wooden RR ties | Humboldt Times | MF 10 | 9/7/1951 | 1 | | Digging work | | Contractor, New Storm Sewer, Railroad Ties |
| Contractor finishing new stretch of 101 | Humboldt Times | MF 10 | 8/6/1937 | 1 | 6 | Road work | Elk River Beatrice | Contractor, New Stretch, 101 |
| Contractor George Hansen almost done with colvert | Morning Daily Humboldt Times | MF 10 | 6/15/1910 | 5 | | Culvert work | Palmer Creek Fortuna | Contractor, Concrete Culvert, Palmer Creek |
| Contractors completed work on Arcata High School | Humboldt Times | MF 10 | 7/20/1910 | 2 | | School completed | Arcata High School | Arcata, High School, Completed , Contractors |
| contractors E street sewer | Humboldt Times | MF 10 | 8/16/1888 | 3 | | New sewer | | Sewer, E Street, Contractors |
| Contractors Hemstreet & Bell moving gravel pit | Humboldt Times | MF 10 | 9/10/1931 | 11 | 6 | Land use | Singleys Van Duzen River Alton | Gravel Pit, Contractors Hemstreet & Bell |
| Contracts awarded | Humboldt Times | MF 10 | 7/8/1930 | 8 | | Road work | Humboldt county | Contracts Awarded, J.P. Holland, Emulsified Asphalt |
| Contracts awarded by State Highway Commission for 101 | Humboldt Times | MF 10 | 7/9/1922 | 3 | 1 | Road work | Trinidad Freshwater Lagoon | Contracts, State Highway Commission, 101 |
| Contracts awarded for Ruth Dam | Humboldt Times | MF 10 | 8/24/1960 | 1 & 3 | | Dam work | Ruth Dam | Ruth Dam, Hbmwd |
| Contracts for building railroad from Willits to Pepperwood been let by NWP RR company | Humboldt Times | MF 10 | 10/27/1909 | 8 | 7 | Railroad work | Willits Pepperwood | Railroad, Nwp Rr Company |
| Cookhouse almost completed | The Humboldt Times | MF 10 | 9/24/1911 | 1 | 2 | New building | Cookhouse South Spit | Cookhouse, South Spit |
| Cooper and Rager bought real estate owned by S.A. Vance estate | The Humboldt Times | MF 10 | 11/3/1907 | 1 | 6 - 7 | Land purchase | Eureka | Cooper & Rager, Estate, S.A. Vance Estate |
| Copco Power sent power to Klamath | Humboldt Times | MF 10 | 12/2/1949 | 17 | | New power | Klamath | Klamath, Copco Power |
| COPCO water rights | Humboldt Times | MF 10 | 9/29/1955 | 7 | | Water Rights | | Water Rights |
| Copper mine owned by D.W. Strapp | The Daily Humboldt Times | MF 10 | 4/2/1908 | 8 | 1 | Mine owner | Patrick Point | Copper Mine, D.W. Strapp |
| Corner of 3rd & A selected as site for CCC barracks | Humboldt Times | MF 10 | 8/11/1935 | 1 & 3 | 5 | Land Use | | Ccc, Barricks, One Story Wooden |
| Corner of 4th & E | Humboldt Times | MF 10 | 7/20/1947 | 5 | | Short History | | Short History, 4Th & E |
| cornerstone for Elks building | Humboldt Times | MF 10 | 8/18/1909 | 8 | 5 | Building work | Eureka | Governor Gillett, Cornerstone, Eureka |
| Cornerstone for new Elks buildings | Humboldt Times | MF 10 | 7/23/1909 | 1 | 2 | New building | | Cornerstone, Elks Building |
| Corona bow afloat | The Humboldt Times | MF 10 | 10/16/1907 | 1 & 4 | 6 & 7 | Ship afloat | | Corona, Afloat |
| County adopt Master Plan Program | Humboldt Times | MF 10 | 4/16/1948 | 1 | 5 | Master Plan | Humboldt County | County, Master Plan |
| County B.O.S. seeking permit to be able extended runway | Humboldt Times | MF 10 | 4/3/1949 | 3 | 2 | Land use | Eureka Slough Fay Slough | Eureka & Fay Slough, County B.O.S. |
| County buy block for new Courthouse | Humboldt Times | MF 10 | 11/16/1923 | 11 | 5 | Land use | Eureka | Courthouse, Block, Purchase |
| County Clerk to advertise bids Roads & Bridge | Humboldt Times | MF 10 | 2/14/1929 | 7 | 4 | Legal Notice | Samoa Rolph | County Clerk, Advertise, Bids |
| County Fair held at South Park | Weekly Times | MF 10 | 10/4/1879 | 1 | 2 | Land use | South Park | South Park, County Fair |
| County funds for construction of hangar | Humboldt Times | MF 10 | 9/1/1936 | 1 | | Airport use | North of Eureka | County Airport, County Funds |
| County Health Dept. took another step forward towards opening dump near Orick | Humboldt Times | MF 10 | 9/12/1958 | 3 | 2 | New landfill | Orick | County Health Dept. , Opening , Dump |
| County jail built 46 years ago | Humboldt Times | MF 10 | 11/19/1953 | 3 | | Jails | | Jails |
| County library, chief librarian Edna Douglas Davis | Humboldt Times | MF 10 | 3/15/1953 | 17 | | County Library location | Eureka | County Library, Edna Douglas Davis |
| County Park | Humboldt Times | MF 10 | 8/11/1926 | 5,7 | | Article | | County Park |
| County Planning Commission approved request for a Drive-In | Humboldt Times | MF 10 | 7/21/1956 | 10 | 7 | Land use | Hoopa | Drive-In, County Planning Commission, Request |
| County Planning Commission moved to new office | Humboldt Times | MF 10 | 1/21/1953 | 2 | 5 | New Office | Eureka Inn | County Planning Commission, Eureka Inn, Moved Office |
| County Public Works projects underway | Humboldt Times | MF 10 | 8/1/1961 | 5 | 2 | Article | Martin's Ferry Bridge Cock Robin Island Bridge | Public Works, Projects , Underway |
| County purchased 8 acres at Freshwater County park | Humboldt Times | MF 10 | 7/17/1937 | 5 | 8 | Land use | Freshwater County Park | Purchased, Charles Lambert, 8 Acres, Freshwater County Park |
| county road being planked, ready for extended | Humboldt Times | MF 10 | 9/13/1888 | 3 | | Road work | | County Road, Ready For Extended |
| County Road between Mendocino County and Rio Dell. | Humboldt Standard | MF 9 | 5/20/1916 | 8 | 3 | Road | Robinsons Ferry Rio Dell Garberville | Robinsons Ferry, Garberville Rd., Miranda |
| County Road from Bair's to Hoopa | Blue Lake advocate | MF 2191 | 7/8/1916 | 8 | 1 | County Road | Bair's Hoopa | Supervisor Rasmus Anderson, County Surveyor A J Logan, Bair'S, Hoopa |
| County roads conditions | Humboldt Times | MF 10 | 10/18/1888 | 3 | 2 | General conditions roads | | General Conditions, County Roads |
| County roads in Northern Mendocino, conditions | Humboldt Times | MF 10 | 7/21/1909 | 1 | 3 | Road conditions | Northern Mendocino | County Roads, Northern Mendocino |
| County sends letter to Gov. Johnson asking for day to be "Good Roads Day" | The Humboldt Times | MF 10 | 7/15/1916 | 4 | 3 | Letter | Seattle San Diego | Letter, "Good Roads Day," Pacific Highway, Attract Tourists, |
