17th Street Bridge

17th Street Bridge

Lynden, WA

A 40 year old 60 inch culvert with over 20 feet of cover failed during an extreme water event. Shearer design evaluated a 100 ft box culvert and a short span bridge for replacement. Ultimately a 60 ft voided slab bridge on tall backwalls was selected. The project included design and construction in a very tight residential work space. The bridge was supported on driven piles set back from the water edge to eliminate any in water work and expedite the permit process. The project included design and construction support and working with the City and adjacent property owners to minimize impacts. Role: Bridge Design, Specifications & Estimate, Construction Support and Engineer of Record.

Donovan Creek Bridge

Donovan Creek Bridge

Jefferson County, WA

Two 60 inch concrete culverts were replaced with a concrete voided slab superstructure supported with driven piles. The goal of the project was to remove a fish barrier in order to increased salmon habitat on the Olympic Peninsula, located near Quilcene. The project included a temporary road shift detour bridge and intertidal work. Role: Bridge Design, Specifications & Estimate, Construction Support and Engineer of Record

May Creek Bridge

Goldbar, WA

This single span bridge replaced an aging timber structure. A unique sheet pile skirt was designed to keep any excavation away from the fish spawning creek with no in water work required. The bridge was designed to be built in phases to allow for continuous traffic access during construction. This BRAC funded project carries several utilities and pedestrian traffic. Role: Project Management, Lead Design & Engineer of Record

Clearbrook Road / Johnson Creek Bridge

Clearbrook Road / Johnson Creek Bridge

near Sumas, WA

This federally funded bridge replaced the existing structurally deficient reinforced concrete bridge, with a 50 foot single span prestressed concrete bridge.

Riverview Boulevard Overpass

Riverview Boulevard Overpass

Kent, WA

This single span 140 foot long overpass was a fast-track project; it was designed and constructed in a 12 month period. The bridge is supported on a stepped spread footing over a structural pad and native dense sands. The superstructure is comprised of prestressed concrete girders and cast-in-place concrete deck. Shearer Design also worked in conjunction with a City selected artist to include an architectural / sculptural fence on this gateway entrance to the City. Our services included Construction support, shop drawing review and site inspection.

Frost Road Bridge

Frost Road Bridge

Whatcom County, WA

The Frost Road Bridge replaced a culvert that previously washed out of Saar Creek. This 100 foot prestressed concrete deck bulb tee bridge was designed to fit within a limited Right of Way and work within a tight budget. Shearer Design developed a TS&L report, as well as final design and final plans for this bridge.


Barlow Bridge

Barlow Bridge

Jefferson County, WA

Shearer Design provided engineering for the Barlow Bridge, a BRAC funded replacement bridge over fossil creek in western Jefferson County. The dramatic undermining of the existing bridge was precipitated by shifting of the Hoh River and the accompanying stream bed erosion and gradient change, making for a very interesting project. The new prestressed concrete voided slab bridge was designed to WSDOT standards in conformance with the latest WSDOT BDM (Bridge Design Manual). Another key feature is the difficult foundation condition, with shallow bed rock and a unique moment frame substructure system for support of this 64 foot single span bridge. The final design included hydraulic analysis, and a extensive multi-weir stream bed stabilization plan. The layout of the new bridge and stream bed stabilization required cooperation and coordination with State Fish and Wildlife staff.

E. Smith Road Bridge at Anderson Creek

East Smith Road Bridge

Whatcom County, WA

The previous bridge had a loading restriction, requiring bridge replacement. The two greatest design restrictions were a stream paralleling the road, which joins into Anderson Creek immediately upstream of the bridge. The other difficulty is a low clearance between the road grade and the stream bed. A shallow superstructure was achieved by using voided slab girders and a composite deck.

Burlington-Alger Bridge

Burlington-Alger Bridge

Skagit County, WA

This BRAC funded job consisted of replacing the existing timber trestle on Old Highway 99 with a 108 foot long two-span bridge over a sensitive wetland. The new bridge required a shallow superstructure due to frequent flooding of a nearby river. The new bridge consisted of voided slab girders with a composite cast-in-place deck. Most of the year, the bridge is in a cow pasture, but when it floods, the water level very nearly approaches the superstructure. Shearer Design provided design, final drawings & specifications, as well as construction support, shop drawing review and RAM file preparation as part of our full scope of services.

Shine Creek

Jefferson County, WA

Shearer Design provided engineering for this Hood Canal Salmon Enhancement funded project. Two 4 foot diameter culverts were replaced with a 70 foot concrete voided slab bridge supported on driven piles. Tidal influence complicated construction at this challenging site. Shearer design provided full PS&E bid documents, construction support and temporary detour design.