Twin Creek Orange Show Road Storm Drain Project - Mitigated Negative Declaration

2 Documents in Project

Summary

SCH Number
2015041013
Lead Agency
San Bernardino, City of (City of San Bernardino)
Document Title
Twin Creek Orange Show Road Storm Drain Project - Mitigated Negative Declaration
Document Type
NOD - Notice of Determination
Received
Posted
6/16/2015
Present Land Use
Twin Creek Channel designated Public Flood Control (PFC), all land adjacent to the project site is designated Industrial and zoned Light Industrial and Office-Industrial Park

Document Description
The City is proposing to replace the existing storm drain to increase capacity and serve the design flow of the proposed developments in the area. The design flow for this project is the 100 year storm event and the ultimate downstream design flow for this project is 1,275.9 cfs. This proposed system will consist of reinforced concrete box (RCB) and RCP components. The proposed system will allow for a discharge of 1,276 cfs into Twin Creek. The proposed project is the expansion of the storm drain system in Orange Show Road to increase capacity. The existing storm drain currently located in the Orange Show Road roadway will be replaced with a 12' x 9' RCB storm drain and a new outfall structure will be located at the same location as the existing structure in Twin Creek. A concrete headwall and wing walls and grouted rip rap pad will be installed at the outfall structure to prevent channel erosion caused by high velocity flows (the expected velocity at the downstream end of the outlet structure is approximately 5.3 feet per second).

Contact Information
Aron Liang
City of San Bernardino
300 North D Street, 3rd Floor
San Bernardino, CA 92418

Phone : (909) 384-5057 x3330

Location

Coordinates
34°4'47"N 117°16'41"W
Cities
San Bernardino
Counties
San Bernardino
Cross Streets
Orange Show Road, Twin Creek, Lena Road, Norman Road
Zip
92408
Total Acres
.28
State Highways
Hwy 10
Airports
San Bernardino Int'l Airport

Notice of Determination

Approving Agency
City of San Bernardino
Approving Agency Role
Lead Agency
Approved On
Final Environmental Document Available at
City of San Bernardino, 300 North D Street, San Bernardino, CA 92418

Determinations

(1) The project will have a significant impact on the environment
No
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
No
(2b) A Negative Declaration was prepared for this project pursuant to the provisions of CEQA
Yes
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
No
(3) Mitigated measures were made a condition of the approval of the project
Yes
(4) A mitigation reporting or monitoring plan was adopted for this project
N/A
(5) A Statement of Overriding Considerations was adopted for this project
No
(6) Findings were made pursuant to the provisions of CEQA
Yes
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