Eikhof Design Group provided engineering design services to the City of Atascadero for the Three Bridges Oak Preserve Trailhead. The design had several challenges, including a blue-line stream crossing, widening of an existing street with retaining walls, preservation of existing trees, inclusion of a fire access road to Highway 41, and implementation of low impact design elements for drainage. The trailhead parking area includes handicap parking and horse trailer parking. The trail system, which includes nearly 4 miles of very well marked pathways, was created by and is maintained by the Atascadero Land Preservation Society (ALPS). A dedication ceremony was held on Friday, September 8, 2017, where Eikhof Design Group was recognized for its work, along with countless others.
Preconstruction - Carmelita Avenue was only a single lane wide. Retaining walls were necessary to widen the street.
Before the project looking toward the site from Carmelita Avenue. This was a single lane road.
Preconstruction photo at gate at the end of Carmelita Avenue. All of the utilities had to be relocated.
Preconstruction - Looking toward Carmelita and residence at end.
Preconstruction - Blueline Creek heading from right to left in middle of picture
Preconstruction - At Blueline Creek looking uphill
Preconstruction - Blueline Creek. This creek only flows during larger storm events.
Preconstruction - Looking toward circle turn around. A large sycamore broke during a storm event and had to be removed.
Preconstruction - Tree that fell while the project was being designed
Preconstruction - An old asphalt roadway was discovered. This may have been part of the original road to Atascadero Beach.
Preconstruction - Looking toward Highway 41 and location of turn around
Preconstruction - Looking toward Carmelita Avenue from location of new fire access
Preconstruction - This large sycamore broke during a storm event and was completely removed during construction.
New kiosk on trail
New kiosk on trail
Kiosk next to parking lot at trail head
Kiosk at trailhead and trail through the gate
New horse trailer parking shown along access drive
Turn around and handicap parking stalls. The trail has a gentle grade and just about all levels of mobility can use the trail.
Trail and horse trailer parking
New parking area
Road to parking area
Blueline Creek crossing in foreground. Pipe was sized for 100-year flood event with half of the pipe buried to create a natural channel bed.
Gated entrance to trailhead
Blueline stream crossing showing bottom of pipe buried
New retaining wall and two lane road on Carmelita. All of the utilities had to be relocated.
Three Bridges Oak Preserve sign
The trail gets a lot of use. This is a Saturday morning shortly after the trail opened.
All available parking used on a Saturday after the trail opened
Ribbon cutting ceremony
Speeches during ribbon cutting and dedication ceremony
Ribbon cutting and dedication of trail
14 - 32
Eikhof Design Group Inc. © 2017