Ygnacio Valley Road
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| Maintained by | Walnut Creek, Concord, Pittsburg, and Contra Costa County, California |
|---|---|
| Length | 15.66 mi (25.20 km) |
| Southwest end | Parkside Drive in Walnut Creek |
| Major junctions |   I-680 / SR 24 in Walnut Creek SR 4 in Pittsburg |
| Northeast end | E 3rd St in Pittsburg |
Ygnacio Valley Road is a major arterial road in central Contra Costa County, California. It extends from Interstate 680 and SR 24 in Walnut Creek to SR 4 in Pittsburg. Also known as Kirker Pass Road and then Railroad Avenue for much of the northern portion, and briefly as Hillside Avenue at its southwest terminus, the road passes through Concord and borders Clayton.
Route[edit]
The route begins near the Interstate 680/Highway 24 junction, at the westbound entrance to Highway 24 at Ygnacio Valley Road, although this portion is actually signed as Hillside Avenue. It then changes signage to Ygnacio Valley Road through an interchange with I-680 and continues though downtown Walnut Creek and Heather Farm Park.[1]
The road then enters Concord through Lime Ridge Open Space and continues into the Clayton Valley neighborhood. After the intersection with Clayton Road, it becomes Kirker Pass Road and makes an approximately 4.5 mile-long pass over the northern Diablo Range. It then enters Pittsburg, where it becomes Railroad Avenue at the Buchanan Road intersection. From here it continues through central Pittsburg before terminating at E 3rd St near the Pittsburg Marina.[2]
Major Intersections[edit]
The entire route is in Contra Costa County.
| Location | mi | km | Destinations | Notes | |
|---|---|---|---|---|---|
| Pittsburg | 0 | 0.0 | E 3rd Street | ||
| 1.15 | 1.85 | SR 4 – Concord, Antioch | Interchange; SR 4 exit 23 | ||
| 2.55 | 4.10 | Buchanan Road | |||
| Concord | 7.80 | 12.55 | Clayton Road | ||
| 9.89 | 15.92 | Cowell Road | |||
| Walnut Creek | 11.89 | 19.14 | Oak Grove Road | ||
| 13.06 | 21.02 | Walnut Avenue / Bancroft Road | |||
| 14.53 | 23.38 | Walnut Boulevard | |||
| 14.77 | 23.77 | Civic Drive | |||
| 15.08 | 24.27 |   North Main Street to I-680 north – Sacramento | No Interchange | ||
| 15.45 | 24.86 | I-680 – Concord, Sacramento, San Jose | Northbound exit 46B; no northbound entrance | ||
| 15.66 | 25.20 | Parkside Drive | |||
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi | |||||
References[edit]
- ^ Walnut Creek, City of (2014-02-28). "THE LANDING AT WALNUT CREEK APARTMENTS PROJECT DRAFT EIR 4.12 TRANSPORTATION AND TRAFFIC". City of Walnut Creek. Retrieved 2021-09-12.
- ^ Planning Division, The City of Pittsburg (2009-11-02). "Railroad Avenue Specific Plan". City of Pittsburg. Retrieved 2021-09-13.
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