STRUCTURAL ENGINEERING FIRM

Structural engineering services for the Pacific Northwest.

Custom Homes Engineering for custom homes is one of our specialties.	Nisqually Reach Nature Center Nisqually Reach Nature Center	Old Gardner Road Bridge The Old Gardner Road Bridge is the longest timber bridge on the Olympia Peninsula. It is located near Gardiner, Washington and spans Contractor's Creek, which emptiness into Discovery Bay. Gardner Road Bridge received the 2002 National Timber Bridge Award.
Sumner Library A library in Sumner, Washington.	Gig Harbor Church A church building in Gig Harbor, Washington.	Lake Silvia State Park Bridge A timber bridge in Lake Silvia State Park
Clallam Bay Timber bridge at Clallum Bay on the Olympic Peninsula	Lake Sammasish State Park Bridge A timber cable stayed bridge.	Piers in Westport Marina Timber superstructure and steel piles compose these two piers used for unloading crab boats in Westport Marina.
Law Office An addition and remodel to a law office in Olympia, Washington.	Rainer, Oregon Elementary School Gym An elementary school gymnasium in Rainer, Oregon, built using insulated panels.	Plan.jpg The Peace Arch US Port of Entry Bridge used an innovative superstructure design consisting of spaced voided slabs composite with a cast-in-place concrete deck in order to achieve a challenging combination of geometric constraints.
James River Industries Interior during construction..	James River Industries Exterior during construction..	Clatskanie School Gymn Elementary school gymnasium in Clatskanie, Oregon built with insulated panels
Square One Business Incubator Square One Business Incubator Building in Thurston County, a 30,000 square feet building.	5 Unit Apartment Building in Seattle Located on a 60 x 120 foot lot, this five unit apartment building in Seattle, WA was designed with half the building cantilevered to provide room for parking.	Tin Bridge The Tin Bridge, located near Pe Ell, Washington, was a historical preservation project. The bridge carried a water line access across the Chehalis River to supply the town of Pe Ell. The bridge was built with timber Howe Trusses and covered with corrugated galvanized steel.

We are temporarily closed due to family emergencies and personal unavailability.

Our contract information has been taken down until we are ready to resume business

I have different pricing plans for different needs.

Right now I cap my time and materials rate at $120.00/hr for local emergency/urgent projects without negotiated contracts. This price is subject to change as market conditions dictate.

I can provide lower rates for work that is not urgent or time sensitive, especially for local home owners working on their own residence. Contact me to inquire.

Structural Engineer:

We are temporarily closed due to family emergencies and personal unavailability.

Our contract information has been taken down until we are ready to resume business

Turpin & Associates

Structural Engineering

Custom Homes

Engineering for custom homes is one of our specialties.

Nisqually Reach Nature Center

Nisqually Reach Nature Center

Old Gardner Road Bridge

The Old Gardner Road Bridge is the longest timber bridge on the Olympia Peninsula. It is located near Gardiner, Washington and spans Contractor's Creek, which emptiness into Discovery Bay. Gardner Road Bridge received the 2002 National Timber Bridge Award.

Sumner Library

A library in Sumner, Washington.

Gig Harbor Church

A church building in Gig Harbor, Washington.

Lake Silvia State Park Bridge

A timber bridge in Lake Silvia State Park

Clallam Bay

Timber bridge at Clallum Bay on the Olympic Peninsula

Lake Sammasish State Park Bridge

A timber cable stayed bridge.

Piers in Westport Marina

Timber superstructure and steel piles compose these two piers used for unloading crab boats in Westport Marina.

Law Office

An addition and remodel to a law office in Olympia, Washington.

Rainer, Oregon Elementary School Gym

An elementary school gymnasium in Rainer, Oregon, built using insulated panels.

Plan.jpg

The Peace Arch US Port of Entry Bridge used an innovative superstructure design consisting of spaced voided slabs composite with a cast-in-place concrete deck in order to achieve a challenging combination of geometric constraints.

James River Industries

Interior during construction..

James River Industries

Exterior during construction..

Clatskanie School Gymn

Elementary school gymnasium in Clatskanie, Oregon built with insulated panels

Square One Business Incubator

Square One Business Incubator Building in Thurston County, a 30,000 square feet building.

5 Unit Apartment Building in Seattle

Located on a 60 x 120 foot lot, this five unit apartment building in Seattle, WA was designed with half the building cantilevered to provide room for parking.

Tin Bridge

The Tin Bridge, located near Pe Ell, Washington, was a historical preservation project. The bridge carried a water line access across the Chehalis River to supply the town of Pe Ell. The bridge was built with timber Howe Trusses and covered with corrugated galvanized steel.