Grant Line Road Roundabouts Project
3 Documents in Project
Summary
SCH Number
2025011018
Lead Agency
City of Mountain House
Document Title
Grant Line Road Roundabouts Project
Document Type
NOD - Notice of Determination
Received
Posted
5/1/2026
Document Description
The project proposes to construct roundabouts at two intersections along West Grant Line Road. One would be installed at the intersection of West Grant Line Road and Altamont Pass Road; the other would be placed at the intersection of West Grant Line Road and Mountain House Road. The roundabouts are designed to ameliorate excessive queuing and delays that currently exist at both intersections; they are not intended to accommodate any future forecasted traffic volumes. Both roundabouts would require the acquisition of additional road right-of-way, as existing right-of-way is inadequate to accommodate these facilities. The project would require approvals from both the City and Alameda County.
Contact Information
Name
Harold Holland
Agency Name
City of Mountain House
Job Title
Planner
Contact Types
Lead/Public Agency
Phone
Email
Location
Coordinates
Cities
Mountain House
Counties
Alameda
Regions
Citywide
Cross Streets
West Grant Line Road & Altamont Pass Road/West Grant Line Road/Mountain House Road
Zip
95391
Total Acres
0
Jobs
1
Parcel #
None
State Highways
None
Railways
None
Airports
None
Schools
None
Waterways
Mountain House Creek
Township
25
Range
4E
Section
18
Base
MDBM
Notice of Determination
Approving Agency
City of Mountain House
Approving Agency Role
Lead Agency
Approved On
County Clerk
Alameda
Final Environmental Document Available at
https://www.mountainhouseca.gov/387/Approved-Projects
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
Yes
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
No
(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
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