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HomeMy WebLinkAboutItem 8.2 MedianLndscpConceptRevAGENDA STATEMENT MEETING DATE: December 12, 1983 SUBJECT: Median Landscaping Concept Review: a) Dublin Blvd./San Ramon Rd. through Village Parkway b) Amador Valley Blvd./San Ramon Rd. to Village Parkway c) Village Parkway/Dublin Blvd. to Amador Valley Blvd. EXHIBITS ATTACHED: RECOMMENDATION: Slides and colored renderings will be presented at the Council meeting Comment on proposed median landscape concepts FINANCIAL STATEMENT: The raised planter alternative on Village Parkway is estimated to be $36,000 more than each of the lawn and ground cover alternatives. The overall project landscaping is in the range of $400,000. The estimated annual maintenance cost for the ground cover area is $15,000. The estimated initial annual maintenance cost for the trees is $30,000 tapering off to $20,000 in about three years. DESCRIPTION: As part of the Five Year Capital Improvement Program, the three subject median landscaping projects, together with a downtown street tree program, are scheduled for construction in the 1983-84 and years following, with Amador Valley Blvd. and part of the street tree program slated for this fiscal year. Also, this fiscal year, a project to overlay most of the same street areas is proposed to be constructed. Staff is designing the irrigation system first so that all water stub-outs to the medians can be incorporated into the overlay project, to preclude later cutting of the new pavement. The firm of Robert M. Babcock and Associates, Landscape Architects, is subcontracting to Santina and Thompson for the landscaping on this project. The firm has designed projects such as North Main Street beautification and Locust Street beautification in Walnut Creek, Railroad Avenue in Pittsburg, and Countrywood Shopping Center in Walnut Creek. Ken Hansen, of Babcock's office will be present to make the Staff presentation. Dublin Blvd. and Amador Valley Blvd. have similar median configuration in that there are many left-turn bays along the streets, limiting the medians to narrow or small areas that are available to landscape. Dublin Blvd. is further restricted in that there is an old concrete highway (about ITEM NO. ~, ~_/ COPIES TO: 14" thick) running down the middle. For these reasons, Staff is recommending a higher proportion of hard landscaping (concrete pavers) with pockets of trees, shrubs, and ground cover, the only other practical alternative being total hardscape of the medians. Village Parkway, however, does contain large median areas that will allow more flexibility in style of landscaping. Staff has proposed the following three alternatives for landscaping the Village Parkway median. Landscaping: 1. Raised Planter - This alternative would elevate much of the landscaping approximately 2 feet, with a band of concrete paver blocks. The landscaping would then grow up and cascade over the raised border. This alternative is approximately $36,000 more expensive than the following two, however, it would add architectural relief to the project. 2. Ground Cover - This alternative would pave a 2-foot decorative border around the planted area and plant the center with trees, ground cover, and shrubs. The ground cover is a little more urban than lawn and may be more appropriate than lawn in this commercial area. 3. Lawn - The lawn alternative gives a more lush residential look to an area, and the maintenance is slightly higher than the previous alternative. The paved bordering band (for aesthetics and maintenance) and trees would be similar to the ground cover alternative.