FY2014 LID Project (Berkeley): Prepared Hydrology and Hydraulics Report, PS&E for:
2016 LID Project (Berkeley): Prepared H&H Study and PS&E for this $1.8 Million green infrastructure project at 3 locations:
2014 Drainage Improvements (Berkeley): Prepared PS&E for the following intersections:
· Fresno and Sonoma – Drainage Improvements
· Bonita and Berkley Way – Replace cross drains with Valley Gutters, Curb Ramp Reconstruction, & Pavement Rehabilitation
· Fulton and Oregon - Replace cross drains with Valley Gutters, Curb Ramp Reconstruction, & Pavement Rehabilitation
Terrace View Park Drainage System (Berkeley): Prepared Hydrology and Hydraulics report and PS&E for storm drain rehabilitation with pipe bursting and slip-lining methods.
Hazel Road Culvert Rehabilitation (Berkeley): Prepared Hydrology and Hydraulics Report, PS&E for Styrene-free CIPP rehabilitation of the existing 42” CSP for Claremont Creek. HEI acquired all regulatory agency permitting required.
Wildcat Canyon Road Slide Repair (Berkeley): Prepared Hydrology & Hydraulic Study and PS&E for this $200K emergency repair project. The project involved improvements to the storm drain system and design of a rock slope buttress to stabilize the existing H-pile and timber lagging wall.
- Milvia and Eunice – Detention Vault, Permeable Pavers, Curb Ramp Reconstruction, and Pavement Rehabilitation
- Spruce and Vine – 2 Bio-retention Basins, Drainage Improvements, Curb Ramp Reconstruction, and Pavement Rehabilitation.
2016 LID Project (Berkeley): Prepared H&H Study and PS&E for this $1.8 Million green infrastructure project at 3 locations:
- Woolsey Street – Bioretention Basin, Stormwater Retention Vault, Street Trees, Curb Bulb-outs
- Shattuck Avenue at University Avenue – Permeable Paver Bus Pad
- Rose and Hopkins Streets Bioretention Basin/Intersection Improvements
2014 Drainage Improvements (Berkeley): Prepared PS&E for the following intersections:
· Fresno and Sonoma – Drainage Improvements
· Bonita and Berkley Way – Replace cross drains with Valley Gutters, Curb Ramp Reconstruction, & Pavement Rehabilitation
· Fulton and Oregon - Replace cross drains with Valley Gutters, Curb Ramp Reconstruction, & Pavement Rehabilitation
Terrace View Park Drainage System (Berkeley): Prepared Hydrology and Hydraulics report and PS&E for storm drain rehabilitation with pipe bursting and slip-lining methods.
Hazel Road Culvert Rehabilitation (Berkeley): Prepared Hydrology and Hydraulics Report, PS&E for Styrene-free CIPP rehabilitation of the existing 42” CSP for Claremont Creek. HEI acquired all regulatory agency permitting required.
Wildcat Canyon Road Slide Repair (Berkeley): Prepared Hydrology & Hydraulic Study and PS&E for this $200K emergency repair project. The project involved improvements to the storm drain system and design of a rock slope buttress to stabilize the existing H-pile and timber lagging wall.
Hilgard Avenue Debris Rack (Berkeley): HEI prepared the PS&E, solicited informal bids, arranged for rack fabrication, and oversaw construction of this $30K debris rack construction.
Multi-Use Recreation Area and Field (San Francisco State University): HEI prepared the Civil Design, Sanitary Sewer, Storm Drainage, Rain Garden Design, Water Line relocation and SWPPP for this 3 acre recreational facility on the SFSU campus. The project included restroom facilities, an artificial turf sports field, utility relocations and two large rain gardens for stormwater filtration. Construction will be completed in spring of 2013.
Mariner Way and Harbor Oak Storm Drain Project (Town of Tiburon): HEI prepared the plans for this project located within State Highway right of way. The existing storm drain system became clogged with debris, spilling storm runoff down the embankment onto Highway 131 (Tiburon Blvd). The project design intercepts water from an existing inlet and uses a downdrain system to convey the water to the roadside ditch below. Project included preparation of a roadway drainage report for submission to Caltrans. HEI also prepared the encroachment permit applications for the project.
West El Pintado and Diablo Road Bridge Slope Repair (Danville): The entire project team, led by Harrison Engineering has completed the Project Concept Study, geotechnical study, environmental documents and regulatory agency permitting for this $1 million slope and roadway restoration project. The project is currently under construction. The project will restore slope protection in San Ramon Creek and construct a cantilever soldier pile & lagging wall to retain W. El Pintado Road, which is failing into the creek. Other work includes 2800 cubic yards of rock slope protection and mitigation planting. The project contract also includes regulatory permitting, CEQA documentation, extended biological monitoring and reporting, materials testing and construction staking.
Woodbine Pedestrian Bridge (Danville): HEI led the project team for this $400K pedestrian bridge replacement project, which involved CEQA documentation, regulatory permitting, geomorphology analysis for siting the new bridge, HEC-RAS analysis, and preparation of PS&E. The PS&E package included demolition plans, planting plans, erosion control, layout and structural plans.
Keller Lake Dredging and Cattail Removal (Concord): Keller Lake is a privately owned urban lake near the downtown area of Concord. Through a public/private partnership, the City of Concord took the lead in the project delivery. Harrison Engineering managed the consultant team. HEI coordinated with the regulatory agencies, processed the permits for the project, assessed feasible disposal sites, and prepared the plans, specifications and estimates. No Section 401 or 404 permits were required for the project. Notice to proceed with design and permitting was issued in May 2002. The project was publicly bid and all work within the Lake was completed by October 15, 2002.
Buena Vista and Parkside Drive Safe Routes To School Project (Walnut Creek): The project involved roadway widening, sidewalks, curb and gutter, a reinforced modular retaining wall, drainage improvements, and use of twin steel reinforced HDPE pipe culverts for conveying an existing stream through the project site.
Kirker Creek Improvement Project (SR4 Flood Relief at Loveridge Rd) (Pittsburg):
Harrison Engineering provided project management services for the design of this $11 million flood control project, designed to alleviate flooding of State Route 4 at Loveridge Road in the City of Pittsburg. The work included project management, permit coordination and review of plans and specifications. HEI was retained by the City to provide construction administration services for this project for two construction seasons ending in 2005. HEI prepared the Letter of Map Revision for FEMA for the project.
Harrison Engineering provided project management services for the design of this $11 million flood control project, designed to alleviate flooding of State Route 4 at Loveridge Road in the City of Pittsburg. The work included project management, permit coordination and review of plans and specifications. HEI was retained by the City to provide construction administration services for this project for two construction seasons ending in 2005. HEI prepared the Letter of Map Revision for FEMA for the project.