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SC Public Works RC1631 Howard Creek Bridge #496 Replacement

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Category: Events and Notices - Legal and Public Notices
Posted: 02/21/2016
 

Details

Publication Date: February 21, 2016


 


To learn more about a project:


 


1. Go to www.snoco.org then enter the name of the project in the “Search for:” box; OR


2. Call the Senior Planner assigned to the project; OR


3. Review the project file at Snohomish County Public Works (PW),3000 Rockefeller Avenue, Robert


J.DrewelBuilding, 2nd Floor,CustomerServiceCenter,Everett,Washington; Office Hours: M-F 8-5


except legal holidays. Please call the Senior Planner in advance to be certain the project file is available.


To comment on a project:


 


1. A public comment period for this DNS and LDA Permit was provided on October 19, 2014 with an end


date of November 10, 2014. This public notice is being revised for the sole purpose of correcting the


appeal language in the public notice dated October 19, 2014.


To appeal a SEPA decision:


 


There is no opportunity for appeal at this time. Pursuant to SCC 30.61.300(10), SEPA appeals related


to a shoreline substantial development permit shall be submitted to the state shorelines hearings board


together with appeal of the underlying shoreline permit.


 


How to reach us:


 


The Snohomish County Public Works Customer Service Center is located on the 2nd Floor of the Robert


 


J.DrewelBuildingat3000 Rockefeller Ave.,Everett,Washington.


SnohomishCountyPublic Works


 


 


3000 Rockefeller Avenue, M/S 607


Everett,WA98201


Phone: 425-388-3488


Phone: 425-388-3700 TTY: 711


Fax: 425-388-6674


http://www1.co.snohomish.wa.us/Departments/Public_Works


 


 REVISED NOTICE OF LAND DISTURBING ACTIVITY


AND SEPA THRESHOLD DETERMINATION


(Pursuant to the provisions of Chapters 30.70.050(2) and 30.61 SCC)


 


Project Name:HowardCreekBridge#496 Replacement


Project Number: RC1631


Project Description:SnohomishCountyPublic Works proposes to replaceHowardCreekBridge#496


located onIndex-Galena Roadat Milepost 9.014. The bridge crossing provides vehicular access to the


Skyko 3 & 4 rural residential communities located north of the project in the upper North Fork Skykomish


River valley, and to land areas within the Mt. Baker-Snoqualmie National Forest. The project would replace


the existing 61-foot structurally deficient log stringer bridge that was constructed in 1976 with a longer 80foot


single span steel girder structure. The replacement bridge would span the stream with no intermediate


in-stream piers. The bridge width would increase from 26.5 feet to 28 feet, including two 11-foot wide travel


lanes with 3-foot wide shoulders.


The proposed work would occur in an existing roadway easement onIndex-Galena Roadlocated onU.S.


Forest Service land in the Mt. Baker-Snoqualmie National Forest. With no detour bridge proposed due to


site constraints, the bridge would be closed to traffic during construction.


The bridge has been determined to be structurally deficient, with a current sufficiency rating of 14.04 out of


 


100. The bridge is currently load limited to 5 tons, and has been restricted to single-lane access in an effort


to prolong structure functionality until replacement. The structural deficiency of the timber structure is due


to the deteriorating log stringer girders.


The bridge approach roadway work on both sides of the stream would extend for approximately 400


feet. The project would permanently impact an estimated 1,762 square feet (0.04 acres) to construct the


modified approach roadway and replacement bridge. The existing roadway would be used as a staging


area to accommodate construction machinery access. Large riprap rock would be removed from the stream


banks in proximity to the existing bridge abutments. The replacement bridge abutments would be located


further landward for the replacement span. A deep pile foundation would be designed to address the


potential for future scour erosion.


SCPW proposes mitigation and conservation measures to address impacts associated with the bridge


replacement construction. The mitigation includes restoring disturbed areas on site, restoring the land area


where the existing bridge and approach roadway is located, and increasing the hydraulic opening under


the bridge to promote more natural, unconstricted flows. The larger hydraulic opening would be created by


the installation of a longer bridge with a bridge foundation located landward of the ordinary high water mark


on both sides of the stream and by removing existing large riprap that has been placed near the existing


bridge abutments.


The proposed project including proposed mitigation measures also requires U.S. Forest Service approval.


The U.S. Forest Service proposes to grant the County an easement for the bridge replacement project


and issue a Special Use Permit for mitigation activities associated with the project. The easement and


special use permit would be issued by the Mt. Baker-Snoqualmie National Forest after review to determine


consistency with its adoptedForestplan.


Project Location: The project site is located onIndex-Galena Roadat Milepost 9.014 east of Index, in


unincorporatedSnohomishCounty. The project area is located in Section 30 Township 28 North, Range


11 East, W.M. of Snohomish.


Type of Project: Public Works Project – Bridge Replacement


Completeness Date: September 30, 2014


Permits/Approvals Required: Land disturbing activity permit; other applicable federal, state and local


permits


SEPA Decision: October 5, 2014


Project Comment Period: A public comment period for this DNS and LDA Permit was provided on October


19, 2014 with an end date of November 10, 2014. This public notice is being revised for the sole purpose of


correcting the appeal language in the public notice dated October 19, 2014.


SEPA Appeal Period: There is no opportunity for appeal at this time. Pursuant to SCC 30.61.300(10), SEPA


appeals related to a shoreline substantial development permit shall be submitted to the state shorelines


hearings board together with appeal of the underlying shoreline permit.


Senior Planner: Crilly Ritz 425-388-3488, ext. 4586


Senior Planner e-mail: crilly.ritz@snoco.org


 


1539563


 


See PDF at: http://50.47.68.138/classified/legals/pdf/2016/1539563.pdf

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