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BOEING COMMERCIAL AIRPLANE GROUP
RENTON WASHINGTON
Replace sewer lift station near 4-42, Fuel spill containment at Apron D, Modify D-50 gate entrance
737 Logan avenue north Renton WA 98055
Adjacent to the shoreline of the Cedar River
Adjacent to Boeing Renton plant site and Renton municipal Airport
Master use permit, Environmental Checklist, Substantial Shoreline development permit is the land use permits for the proposed projects.
Zoning designation is Urban Center north 2
Boeing Commercial Airplane plant in Renton to the Renton Airport
The Cedar River & Lake Washington are the Special site features
Sandy silt loam is the soil type. The work is within 200 ft. of the ordinary high water mark of the Cedar River
The North area of the Cedar River has abundant variety of fish and wildlife
No trees will be removed. No vegetation to be disturbed along the bank
.
No views will be obstructed by the proposed project
The project is 100% impervious surface
Cost of three tasks is 1, 570, 000
The project consists of three separate tasks at the Boeing main Renton plant and at the Renton Municipal airport Boeing Fuel spill containment at Apron D, Modify D-50 gate entrance
Task one Replace sewer lift station near 4-42,
Replace sewer lift station task is just west of the 4-42 bldg underneath the Boeing internal roadway on the east side of the Cedar River
Task two Fuel spill containment at Apron D, Modify D-50 gate entrance
Fuel spill containment at Apron D is near the Boeing south bridge adjacent to the bank on the east side of the river
Task three Modify D-50 gate entrance
Modify D-50 gate entrance is adjacent to East. Perimeter road and west of the Cedar River on Boeing leased airport property.
Task one
Replace sewer lift station near 4-42
Scope of Work
The scope of work for this task involves replacement of Building 4-42 sewage lift station. This lift station serves Building 4-42, 4-41 and west side of Building 4-20.
The new lift station shall be constructed and readied to place on line. During an outage, the sewer pipes shall be switched from the old lift station to the new lift station without
impacting the building operations. Design of the new lift station shall take into effect the need to keep the buildings operational except for the switchover. Reroute existing fire
line for new lift station
The scope of work includes installation of a new vault for collection of sewage, two new submersible sewage pumps, controls and piping. The existing 8” sewer line from Building 4-42
and 4-41 will be rerouted to the new 8 ft. sewage lift station vault.
A 48” diameter manhole will be installed to collect the sewage upstream of the new vault The 4” discharge line from the new sewage pumps will be connected to the existing 4” sewage
discharge line just south of the new lift station.
The old sewage lift station will be demolished and filled in after the new lift station is put into service. Impervious surface disturbance is approx. 1900 sq. ft.
Task Two
Modify existing Boeing Gate D-50 entrance to add a pedestrian walkway path
Scope of Work
This scope of work for this task involves of removal of a 24ft automatic gate and 60 ft. of existing fencing to create new opening, Remove asphalt and curbing.
The Installation of 136 LF of new 7 ft. high fencing, and new 36 ft. wide double swing gate. Add 1each traffic control swing arm
Replace Approx. 3280 sq. ft. of existing Asphalt
Add 2 new concrete bollards
Add new 3 x 7 exterior door, 4x 4 concrete landing, metal stairs and 3x5 awning at existing guard house
Relocate 2 each light fixtures 7’ high on existing guard shack. Point light fixtures downwards and away from Cedar River
Task 3
Fuel spill containment Apron D
Scope of Work
The project will add a new fuel containment to the Boeing Apron D which is used for 737 Aircraft stalls.
Replacement of 72” storm drainage manhole with an 84” storm drainage manhole, and install 2 each new 5000 gallon fuel spill containment tanks
Replace both 7 LF of existing 24 & 12 diameter pipes.
The project will then replace 840 sq. ft. of existing Asphalt pavement. and 750 sq. ft. of concrete pavement for a total of 1,590 total replaced pavement