Site feasibility study
Yield, access, utility capacity and constraints before you commit to a purchase.
Civil design since 2006
Drawings that clear plan review
Site civil, grading, stormwater and utility design for residential, commercial and public projects. We know how each jurisdiction in the metro reviews a set, and we design to that from day one.
19 yrsin practice
640+projects permitted
11licensed engineers
3 wkstypical concept turnaround
Engineering services
From feasibility through construction support
Most work is fixed fee by phase once the scope is defined.
Grading and drainage design
Earthwork balance, spot elevations and drainage that works with the site you actually have.
Stormwater management design
Detention, water quality facilities and reports sized to current jurisdiction manuals.
Utility and franchise coordination
Water, sanitary and storm design plus coordination with the dry utility providers.
Permit and plan review support
We answer review comments and resubmit until the set is approved.
Construction administration
Site visits, RFI responses and as built review while the job is being built.
About the practice
Small firm, principal on every project
Cascade was founded by two engineers who left large firms because clients kept getting handed to whoever had capacity. Here a licensed principal stays on your project from feasibility to final walk. We keep the roster deliberately small so the person who stamps the drawings is the person who answered your first phone call.
•Professional engineers licensed in Oregon and Washington
•A principal engineer assigned for the life of the project
•Plan review comments answered within five business days
Reviews
What developers say
“They flagged a stormwater constraint during feasibility that would have killed our unit count. We renegotiated the land price before closing.”
Erin S., Multifamily developer
“Two rounds of comments and we were approved. Our last engineer took six.”
Tom V., General contractor, Clackamas
FAQ
Working with a civil engineer
When should I bring an engineer in?
Before you close on the land if you can. A feasibility study costs a fraction of a design package and regularly changes what a site is worth, because access, slope and stormwater capacity decide how many units you can actually build.
How long does a full site civil package take?
For a typical commercial or small residential site, expect six to ten weeks for a permit ready set, then jurisdiction review on top of that. Review timelines vary widely by city, and we will tell you the current queue in your jurisdiction up front.
Do you handle the permit submittal?
Yes. We prepare the submittal, respond to plan review comments and resubmit until approval. You are welcome to submit yourself, but most clients want the review cycle handled by the people who drew it.
Do you work with architects already on the project?
Regularly. We coordinate directly with the architect, geotechnical engineer and surveyor so the civil set matches the architectural set instead of colliding with it at review.
Contact
Talk through your site
Send the parcel number and what you want to build. We will tell you the likely constraints on a call before anyone signs anything.
Phone(791) 555-0191
Address915 SE Water Avenue, Suite 210, Portland, Oregon
HoursMon to Fri 7:30am to 5:30pm
AreaPortland metro, Clackamas, Washington and Clark counties