| Lawrence J. Timmerman Airport | |
| Iata: | MWC |
| Icao: | KMWC |
| Faa: | MWC |
| Type: | Public |
| Owner: | Milwaukee County |
| City-Served: | Milwaukee, Wisconsin |
| Timezone: | CST |
| Summer: | CDT |
| Elevation-F: | 745 |
| Elevation-M: | 227 |
| Image Mapsize: | 210 |
| Image Map Caption: | FAA airport diagram |
| Pushpin Map: | USA Wisconsin#USA |
| Pushpin Relief: | yes |
| Pushpin Map Caption: | Location of airport in Wisconsin |
| Pushpin Label: | MWC |
| Pushpin Label Position: | left |
| R1-Number: | 15L/33R |
| R1-Length-F: | 4,107 |
| R1-Length-M: | 1,252 |
| R1-Surface: | Asphalt |
| R2-Number: | 15R/33L |
| R2-Length-F: | 3,231 |
| R2-Length-M: | 985 |
| R2-Surface: | Turf |
| R3-Number: | 4L/22R |
| R3-Length-F: | 3,203 |
| R3-Length-M: | 976 |
| R3-Surface: | Asphalt |
| R4-Number: | 4R/22L |
| R4-Length-F: | 2,840 |
| R4-Length-M: | 865 |
| R4-Surface: | Turf |
| Stat1-Header: | Aircraft operations (2023) |
| Stat1-Data: | 27,266 |
| Stat2-Header: | Based aircraft (2024) |
| Stat2-Data: | 90 |
| Footnotes: | Source: Federal Aviation Administration[1] |
Lawrence J. Timmerman Airport, known locally as Timmerman Field, is an airport in Milwaukee, Wisconsin, United States, owned by Milwaukee County. Located 5 miles (8 km) northwest of the city center, it is used mainly for general or private aviation. It is included in the Federal Aviation Administration (FAA) National Plan of Integrated Airport Systems for 2023–2027, in which it is categorized as a regional reliever airport facility.[2]
The airport was built in 1929 and dedicated on July 6, 1930,[3] one of 25 such projects in U.S. cities by the newly incorporated airplane manufacturer Curtiss-Wright.[4] The airport was originally known as Curtiss-Wright Field, hence the letters "WC" in its airport codes. In 1945, Curtiss-Wright sold it to Fliteways, Inc., the airport's property manager since 1936.[5] Milwaukee County purchased the airport from Fliteways in July 1947, when it was 131acres in size.[6] [7] [8] It was host to the Experimental Aircraft Association's earliest Fly-In Conventions from 1953 to 1958. The airport was renamed in July 1959 for Lawrence J. Timmerman (1878–1959), chairman of the Milwaukee County Board of Supervisors from 1936 to 1959.[9] [10]
Lawrence J. Timmerman Airport currently serves various general aviation groups. The current fixed-base operator is Spring City Aviation. The airport is home to the Milwaukee chapter of Youth and Aviation, as well as two Civil Air Patrol squadrons: the Timmerman Composite Squadron and the Milwaukee Senior Support Squadron 10. The airport also serves many private and public users.
Lawrence J. Timmerman Airport covers an area of 420acres and contains two asphalt paved runways: the primary runway 15L/33R measuring 4,107 x 75 ft (1,252 x 23 m) and the crosswind runway 4L/22R measuring 3,203 x 75 ft (976 x 23 m). It also has two turf runways: 15R/33L measuring 3,231 x 270 ft (985 x 82 m) and 4R/22L measuring 2,840 x 270 ft (865 x 82 m).
For the 12-month period ending April 30, 2023, the airport had 27,266 aircraft operations, an average of 75 per day: 97% general aviation, 2% military, and just less than 1% air taxi. In August 2024, there were 90 aircraft based at this airport: 78 single-engine, 8 multi-engine, 3 jets and 1 helicopter.
Public transit service to the airport is provided by Milwaukee County Transit System.