Tenakee Ferry Terminal Improvements

Tenakee Ferry Terminal Improvements

Location: Tenakee Springs, AK
Project Dates: 2020
Owner: AK DOT&PF

proHNS provided a full team to perform contract administration and inspection services for all work on this $11.2 million project that reconstructed the existing Tenakee city dock and DOT&PF ferry terminal facility. Construction included removal of portions of the existing dock and terminal structures, refurbishment of the existing pile support approach deck, improvements to fuel and electrical systems, and construction of new pile-supported dock and ferry staging structures, new offshore mooring dolphins, new timber mooring floats, and new fuel operations building. To save on costs and minimize contact between our crew and Tenakee residents during the COVID-19 pandemic, proHNS utilized our Project Engineer’s 65-foot, 10-bed motor yacht M/V Heron to lodge project field staff and serve as the project office. The vessel was stocked with all necessary communication equipment (handheld radios, satellite Internet) as well as inspection and safety equipment before departing for Tenakee.

North Tongass Bridge Improvements – Waterfall Creeks

North Tongass Bridge Improvements – Waterfall Creeks

Location: Ketchikan, AK
Project Dates: 2019
Owner: AK DOT&PF

This federally funded project removed and replaced the first Waterfall Creek Bridge (#0414) and Second Waterfall Creek Bridge (#0415), regraded and repaved bridge approaches, improved drainage, relocated utilities, and installed new guardrails and signs. proHNS Engineering Technicians tested aggregates, concrete, and asphalt paving both in the field and in the DOT&PF laboratory, and simultaneously performed construction inspection duties.

Ketchikan Airport Creek Bridge Replacement

Ketchikan Airport Creek Bridge Replacement

Location: Ketchikan, AK
Project Dates: 2019
Owner: AK DOT&PF

This FHWA-funded AK DOT&PF project replaced an existing temporary bridge structure across Airport Creek on Lewis Reef Road with a new, two-lane concrete bulb tee girder bridge with a finished width of 39 feet. Improvements included realignment of Lewis Reef Road and modifying the approach intersection of Bostwick/Seely Road. The concrete bridge abutments were Cast-In-Place (CIP) atop steel H-piles rock socketed into bedrock. Bridge diaphragms and wingwalls were also CIP concrete atop structural fill. Approaches were backfilled with structural fill, porous backfill, select material, type A and capped with subbase, grading C. Roadway improvements were constructed on new and existing alignments using common roadway excavation and embankment techniques. Of note, the entire project corridor was through “muskeg” and delineated wetlands.

proHNS provided a full-time, on-site construction inspector who also provided materials sampling and testing in an AK DOT&PF laboratory. We also provided a part-time, fill-in inspector. proHNS Contract Manager Garret Gladsjo, PE, managed consultant contract cost/schedule control, strategically set and adjusted staffing levels to match construction and AK DOT&PF needs, and regularly performed Quality Assurance/Quality Control reviews to ensure DOT&PF’s funding sources were not jeopardized.

 

Small Tracts/Mud Bay/Third Avenue AC Pipe Replacement

Small Tracts/Mud Bay/Third Avenue AC Pipe Replacement

Location: Haines, AK
Project Dates: 2019-2020
Owner: Haines Borough

proHNS designed this Haines Borough project that replaced 2,891 feet of asbestos and ductile iron water line with HDPE pipe. In addition to installing a new water main, sewer services, water services, hydrants, and valves, the project also replaced the road base and pavement. proHNS also provided contract administration and inspection services during the three-month construction season. As the project was partially funded by an Alaska Drinking Water Fund loan, contract administration included ensuring work adhered to all state and federal requirements (American Iron and Steel, DEC testing, wage rates, etc.) so as not to jeopardize funding.

Meander Way Streambank Stabilizations

Meander Way Streambank Stabilizations

Location: Juneau, AK
Project Dates: 2018-2019
Owner: Nine private homeowners

Due to recent flooding caused by outbursts of a lake dammed by Juneau’s Mendenhall Glacier (referred to as “Jökulhlaup” events), private homeowners along the Mendenhall River experienced erosion of their riverbank and loss of their backyards. Principal Engineer Lucas Chambers, PE, provided stabilization designs, navigated permit requirements, and worked with a subcontracted surveyor to complete work in a timely manner for nine private property owners affected by these flooding events. For months, Lucas held collective planning and informational meetings with homeowners to keep them apprised of progress on design, as well as permitting requirements that evolved as the project moved forward. In addition to developing the stabilization designs for each of the nine properties, Lucas also completed and submitted permits to four agencies (U.S. Fish and Game, Division of Natural Resources, Army Corps. of Engineers, and the City and Borough of Juneau) on behalf of each client.

Egan Drive 10th Street to Main Street Improvements

Egan Drive 10th Street to Main Street Improvements

Location: Juneau, AK
Project Dates: 2019-Present
Owner: AK DOT&PF

proHNS is providing a team of experienced Project Engineers, Office Engineers, and Engineering Technicians to provide contract administration and inspection services for this high-profile, logistically challenging road improvement project in downtown Juneau. The 2019 construction season is focusing on the highly trafficked stretch of Egan Drive between Willoughby and Whittier Streets, necessitating complex coordination between stakeholders to facilitate traffic control, plan construction schedules, and keep private citizens and nearby business owners apprised of project developments. When complete, improvements to the area will include new pavement, improved pedestrian and bicycle facilities, new storm drainage collection systems, repaired retaining walls, and more.

Calvary Fellowship Subdivision

Calvary Fellowship Subdivision

Location: Juneau, AK
Project Dates: 2017-2019
Owner: Southeast Endeavors

proHNS designed this 8-lot subdivision on behalf of Southeast Endeavors, and subsequently provided construction inspection services under our three-year CBJ term agreement. Our Lead Designer Lucas Chambers worked on this project from start to finish. Beginning in 2017, Lucas designed and modeled the new road, lot layout, driveways, and water and sewer facilities servicing the new lots. He also designed an extension of the existing ductile iron water main with new HDPE water main to service all lots, with the sewer extending up the new road and tying into the existing system running along Glacier Highway. In 2018, CBJ hired proHNS to ensure subdivision construction abided by all municipal codes and standards. Lucas provided inspection services on this project through its completion in 2019.

Front Street Water Line Replacement

Front Street Water Line Replacement

Location: Haines, AK
Project Dates: 2019
Owner: Haines Borough

This project, funded by an Alaska Department of Environmental Conservation Drinking Water Fund loan, replaced 420 linear feet of existing 4-inch diameter asbestos cement (AC) water line with HDPE pipe. Our subcontractor North 57 Land Surveying provided survey while we handled project design, elements of which included replacement of residential water services, water line valves, hydrants, and other system features. We also developed bid-ready plans and specifications, and were contracted to perform contract administration and inspection services, which we completed in Fall 2019.

Portage Cove Waterfront Trail

Portage Cove Waterfront Trail

Location: Haines, AK
Project Date: 2019
Owner: Haines Borough

proHNS is currently designing three sections of the six-segment Portage Cove Waterfront Trail. The type of site-specific trail improvements will be determined during design and through coordination with Haines Borough representatives, though it is anticipated most of the trails will be constructed of gravel surfacing with limited sections of concrete sidewalk/ramps. Our primary goal is to design safe, usable trail alignments that can be constructed using cost-effective materials and methods, as well as allow for future upgrades and improvements. Services and deliverables provided on this project include topographic survey, base map development, design and analysis of alternative alignments, technical specifications, and construction-ready plan sets.

 

 

Lee Street Pump Station Replacement

Lee Street Pump Station Replacement

Location: Juneau, AK
Project Dates: 2018-2019
Owner: City and Borough of Juneau

As the prime consultant, proHNS is providing civil engineering design for this CBJ project that will upgrade an existing pump station to maintain operating pressure and provide fire flow to a nearby subdivision. While our subcontractor Haight & Associates handles electrical design, proHNS staff will locate prior hydraulic analyses, collect flow data at existing fire hydrants, determine system pressure requirements for minimum and maximum curb pressures and fire flows, and assess pump station components for potential reuse. proHNS is also responsible for providing construction cost estimate and specifications.