Las Trampas Creek Bridge at South Main Street Replacement Project
2 Documents in Project
Summary
SCH Number
2024020659
Lead Agency
City of Walnut Creek
Document Title
Las Trampas Creek Bridge at South Main Street Replacement Project
Document Type
NOD - Notice of Determination
Received
Posted
5/13/2024
Document Description
The existing five-span bridge would be replaced with a new two-span precast-prestressed voided concrete slab bridge. The bridge would be replaced in two phases and by closing South Main Street. The proposed bridge would be 104 feet long and 102.5 feet wide including barriers, two 10-foot sidewalks in compliance with the Walnut Creek Pedestrian Master Plan design guidelines for the Core Area Zone, and one 4-foot-wide median. The bridge would convey vehicular traffic on four 12-foot through lanes and a left-turn lane that would vary in width. The proposed vertical profile is planned to be similar to the existing profile to minimize cut/fill requirements adjacent to the proposed bridge. The proposed roadway approaches are planned to be slightly realigned from their existing condition between the intersections at Botelho Drive and Broadway Plaza to conform to the new bridge width. Improvements to the north and south roadway approaches are anticipated to be less than 200 feet long on either side of the proposed bridge.
Contact Information
Name
Neil Mock
Agency Name
City of Walnut Creek
Job Title
Project Engineer
Contact Types
Lead/Public Agency
Phone
Email
Location
Coordinates
Cities
Walnut Creek
Counties
Contra Costa
Regions
Citywide
Cross Streets
Botelho Drive and Newell Avenue
Zip
94596
Total Acres
1
Parcel #
184-070-011 & 183-011-027
State Highways
SR 24, I-168
Railways
NA
Airports
NA
Schools
NA
Waterways
Las Trampas Creek
Township
1 N
Range
2 E
Section
35
Base
Mt. Diab
Notice of Determination
Approving Agency
City of Walnut Creek
Approving Agency Role
Lead Agency
Approved On
County Clerk
Contra Costa
Final Environmental Document Available at
https://www.walnutcreekca.gov/government/public-works/ceqa
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 Mitigated or 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
Yes
(5) A Statement of Overriding Considerations was adopted for this project
No
(6) Findings were made pursuant to the provisions of CEQA
Yes
Attachments
Notice of Determination
Responses to Comments
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