Metro is inviting bids for Howell Territorial Park Road and Parking Improvements for the Parks and Nature department. A. Farm access road
1. Overall project needs
12' driving surface
Appropriate ditches for drainage
The posted speed limit of the road is 5mph. The road should be designed to accommodate
10mph
ODOT approved materials
Base aggregate should be clean and drainable to retain strength
Free of organics
Surface aggregate should be 3/4 " crushed minus or a mix of clean, recycled pavement and
new aggregate that allows for appropriate drainage
Reduce maintenance from loss of fines
Provide a written maintenance plan for Metro staff to follow
A1: Existing gravel road spanning approximately 400' starting from NW Howell Park Road
Assess the road condition and improve as needed to extend the life.
The road should be straightened to better support long vehicles or vehicles towing
trailers with wide turning radiuses such as tractors with implements, box trucks, and
dump trucks.
The existing gravel road borders a historic orchard popular with park visitors.
Improvements should increase the distance of the road from the orchard for better
visibility (visitor safety), minimizing the chance of vehicles brushing against trees, and to
support a future installation of a split rail fence separating the road and the orchard.
Minimum compacted depth of 6" for base layer and 3" for surface layer
3. A2: Improving the approximately 300' dirt road.
Preparation - remove organic material and topsoil, remove of potholes or washboard
areas, scarify, level, and grade the road to match the existing road surface.
Install permeable road fabric.
Minimum compacted depth of 6" for base layer and 3" for surface layer For Questions or Additional Information, Contact: Name: Bids and Proposals Email: bidsandproposals@oregonmetro.gov. QUESTIONS DUE: September 14, 2023. Metro may accept or reject any or all bids, in whole or in part, or waive irregularities not affecting substantial rights if such action is deemed in the public interest Howell Territorial Park 13901 NW Howell Park Rd Portland, OR 97231
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