Statewide Middle-Mile Network Map

Track the Build: Project Status Map

The Project Status Interactive Network Map visualizes the current progress of network route miles across various statuses: pre-construction, installation, and ready-to-connect. If you’re specifically interested in when the Middle-Mile will be available in your area, explore the map and click on a county. This action will highlight the statuses at which those miles are currently being installed. A pop-up box will also appear, offering further details about the county.  The map will be updated the last Monday of every month. For a more detailed breakdown, refer to the chart below, which outlines each county’s installation miles (pre-construction, installation, and ready-to-connect).

Information regarding joint build, lease, and purchase details can be found on the Network Development page.

For information regarding the Last Mile Federal Funding Account (FFA), visit the California Public Utilities Commission’s website.

Network Miles by County and Project Status

Table Description:

• County Name: Location of the network.
• Pre-Construction Miles: The activities are design, engineering, and permitting.
• Installation Miles: In the Installation status, the following activities are performed: Conduit Installation, Vault Placement, Fiber Pulling, Splicing, Hub Placement, Power Connection, and Electronics Installation. 
• Ready-to-Connect Miles: In the Ready-to-Connect status, the following activities are performed: the network service center is established. Network testing occurs to confirm that segment(s) is operational and secure.
• Total Miles: Total network miles for county.

County Name	Pre-Construction Miles	Installation Miles	Ready-to-Connect Miles	Total Miles
Alameda	32.9	77.6	0	110.5
Alpine	41.0	2.5	0	43.5
Amador	52.6	53.6	0	106.2
Butte	66.0	49.4	0	115.4
Calaveras	84.0	21.0	0	105.0
Colusa	0.8	42.4	0	43.2
Contra Costa	56.1	37.5	0	93.6
Del Norte	54.4	10.0	0	64.4
El Dorado	83.3	37.0	0	120.3
Fresno	61.9	229.2	0	291.1
Glenn	10.5	38.6	0	49.1
Humboldt	130.7	122.0	0	252.7
Imperial	3.4	225.2	0	228.6
Inyo	0	0	147.2	147.2
Kern	42.5	381.2	31.5	455.2
Kings	2.7	130.7	0	133.4
Lake	0	89.7	0	89.7
Lassen	30.0	168.0	0	198.0
Los Angeles	141.5	282.1	0	423.6
Madera	53.1	38.4	0	91.5
Marin	38.3	2.7	0	41.0
Mariposa	90.5	0	0	90.5
Mendocino	178.4	72.2	0	250.6
Merced	9.6	119.6	0	129.2
Modoc	112.0	61.5	0	173.5
Mono	12.5	0	175.3	187.8
Monterey	1.4	149.7	0	151.1
Napa	0	17.3	0	17.3
Nevada	53.6	26.8	0	80.4
Orange	18.7	76.4	0	95.1
Placer	101.3	19.3	0	120.6
Plumas	14.2	42.0	0	56.2
Riverside	7.3	247.9	0	255.2
Sacramento	112.8	53.0	0	165.8
San Benito	57.5	42.9	0	100.4
San Bernardino	326.6	191.0	69.0	586.6
San Diego	1.2	189.1	0	190.3
San Francisco	3.2	15.7	0	18.9
San Joaquin	66.9	108.2	0	175.1
San Luis Obispo	65.7	87.4	0	153.1
San Mateo	2.2	31.8	0	34.0
Santa Barbara	84.1	105.3	0	189.4
Santa Clara	28.4	84.8	0	113.2
Santa Cruz	0.1	10.0	0	10.1
Shasta	87.1	67.3	0	154.4
Sierra	0	32.8	0	32.8
Siskiyou	145.7	166.5	0	312.2
Solano	8.1	52.6	0	60.7
Sonoma	97.1	16.9	0	114.0
Stanislaus	38.4	87.6	0	126.0
Sutter	10.0	58.9	0	68.9
Tehama	28.2	107.6	0	135.8
Trinity	0.1	72.5	0	72.6
Tulare	24.4	231.0	0	255.4
Tuolumne	81.3	0	0	81.3
Ventura	28.9	71.1	0	100.0
Yolo	12.1	84.4	0	96.5
Yuba	23.2	27.4	0	50.6
Grand Total Miles	2,918.5	4,867.3	423.0	8,208.8

Updated April 30, 2026

Data

• Middle-Mile Broadband Network – Download a CSV, Shapefile, GeoJSON, and/or KML of the current network. 
• California State Geoportal – Discover, analyze, and download Middle-Mile Broadband Initiative data from the California State Geoportal.