California Highways: 
[Click here for a key to the symbols used. Some county routes were constructed with federal funds. These routes are indicated as FAP (Federal Aid Primary), FAU (Federal Aid Urban), or FAS (Federal Aid Secondary). If no funding source is shown, no federal funds were used. Note that while some segments seem to have the same attributes, they may differ in the county-local road number assigned to the segment, or in the Caltrans Map Sheet number.]
Routing
Sperry Avenue from I-5 to the Patterson city limits (FAS, 2.56 mi) [Stanislaus County]
Sperry Avenue in Patterson from the Patterson city limits to the Patterson city limits (FAS, 0.17 mi) [Stanislaus County]
Sperry Avenue outside Patterson from the Patterson city limits to the Patterson city limits (FAS, 0.16 mi) [Stanislaus County]
Sperry Avenue in Patterson from the Patterson city limits to Route 33 (FAS, 0.29 mi) [Stanislaus County]
Las Palmas Avenue in Patterson from Route 33 to First Street (FAS, 0.10 mi) [Stanislaus County]
Las Palmas Avenue from First Street to the San Joaquin River (FAS, 2.94 mi) [Stanislaus County]
West Main Street from the San Joaquin River to the Turlock city limits (FAS, 11.46 mi) [Stanislaus County]
West Main Street in Turlock from the Turlock city limits to West Avenue (FAS, 1.00 mi) [Stanislaus County]
West Avenue in Turlock from West Main Street to Olive Avenue (FAU, 0.06 mi) [Stanislaus County]
Olive Avenue in Turlock from West Street to Lander Avenue (FAU, 0.50 mi) [Stanislaus County]
Olive Avenue in Turlock from Lander Avenue to Golden State Blvd (FAU, 0.18 mi) [Stanislaus County]
StatusThis segment is cosigned with County Sign Route J14.
Golden State Blvd in Turlock from Olive Avenue to East Avenue (FAU, 0.25 mi) [Stanislaus County]
East Avenue in Turlock from Golden State Blvd to the Turlock city limits (FAU, 0.84 mi) [Stanislaus County]
East Avenue from the Turlock city limits to Daubenberger Road (FAU, 0.64 mi) [Stanislaus County]
East Avenue from Daubenberger Road to the Merced county line (FAS, 3.59 mi) [Stanislaus County]
East Avenue from the Stanislaus county line to Oakdale Road (FAS, 5.00 mi) [Merced County]
Oakdale Road from East Avenue to Turlock Road (FAS, 1.24 mi) [Merced County]
Turlock Road from Oakdale Road to Route 59 (FAS, 8.40 mi) [Merced County]
History and Signage InformationThis route was defined in 1960.
The impedes for the designation of County Sign Route J17 was construction of the San
Joaquin River Bridge east of Patterson on Las Palmas Avenue, which was
built in 1959 as a replacement for an earlier span. The 1959-era
structure more directly linked Las Palmas Avenue to Main Avenue. The
earlier structure was located a short distance north of the 1959 span and
the approach roadway is now Old Las Palmas Avenue. As originally
configured, the County Sign Route J17 began at the intersection of Route 33 and Las
Palmas Avenue in the community of Patterson in Stanislaus County.
From Patterson, the highway travelled east into Turlock via Main Avenue
and Main Street. In Turlock, the highway followed Lander Avenue,
Olive Avenue, Golden State Boulevard and East Avenue. Departing
Turlock, the highway was designated along East Avenue, Oakdale Road and
Turlock Road to Route 59 near Snelling in Merced County. Following
the completion of I-5 in the Patterson area in the late 1960s, County Sign Route J17 was
extended west to meet it. This extension was plotted west of Route 33 along Sperry Avenue to the Interstate.
(Source: Gribblenation Blog (Tom Fearer), "County Route J17 (Stanislaus County and Merced County)", 12/10/2025)
StatusSperry Ave Roundabout (Patterson - Segment 4)
In August 2025, the CTC approved amending the following
new project into the 2024 SHOPP: 10-Sta-33 12.571. PPNO 10-3692; ProjID
1022000222; EA 1Q020. Route 33 In the City of Patterson at the
intersection with Sperry Avenue/Route 130†. Construct
roundabout. Concurrent COS allocation under Resolution FP-25-23; August
2025. Allocation ($ × $1000): PA&ED $1,430; PS&E $2,320; R/W
Sup $549; ⊘Con Sup $1,665; ⊘R/W Cap $2,204; ⊘Const
Cap $8,387; TOTAL $16,555. BC: 10/30/2030. “⊘”
indicates phase not authorized.
† Note: Although stated and
apparently plausibly part of Route 130, Sperry Avenue is not in the
postmile database as part of Route 130; state-maintained Route 130 ends
at the top of Mt. Hamilton. Sperry Avenue is actually part of County Sign Route J17.
(Source: August 2025 CTC Agenda, Agenda Item 2.1a.(1a) #5)
Total mileage: 39.20 mi.
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Maintained by: Daniel P. Faigin
<webmaster@cahighways.org>.
CR J16
CR J18