 State Route 109 | ||||
|---|---|---|---|---|
| University Avenue | ||||
 SR 109 highlighted in red | ||||
| Route information | ||||
| Maintained by Caltrans | ||||
| Length | 1.870 mi (3.009 km) | |||
| Major junctions | ||||
| South end |  US 101 in East Palo Alto | |||
| North end |  SR 84 in Menlo Park | |||
| Location | ||||
| Country | United States | |||
| State | California | |||
| Counties | San Mateo | |||
| Highway system | ||||
| ||||
State Route 109 (SR 109) is a short, unsigned state highway in the U.S. state of California. It forms part of University Avenue in San Mateo County between U.S. Route 101 in East Palo Alto and State Route 84 in Menlo Park just west of the Dumbarton Bridge. Although the route is unsigned, it may be noted on some online maps.