ART BUILDING Bridge to Lake Merritt to 10 th Street to Ball Fields Multi-Use Path to Laney Campus awkward connection with multi-use path awkward connection with multi-use path structure connection to art building aesthetic form ADA access circulation: connection to paths bridge width CONSIDERATIONS hydrology permitting construction cost no structural issues new bridge offers an opportunity to create a unique landmark ADA accessible alignment improves access to crossing from Laney College impacts dependent on design; supporting piers should not be built in existing channel permitting should be folded into 10th Street permitting package uninterrupted use (existing bridge will be used during construction) highest cost (depends on design; ~30% more than alt 4) opportunity to increase width of bridge to accommodate multiple uses existing steps and sloped path to remain survey of existing structure and new structural elements needed existing steps and sloped path to remain new structural elements may be detrimental to form of existing bridge ADA accessible no impact no impact use will be restricted during construction low cost existing width (6.5’) is narrow but adequate for pedestrian use no structural issues existing steps and sloped path to remain new bridge offers an opportunity to create a unique landmark ADA accessible approaches may be modified to improve access opportunity to increase width of bridge to accommodate multiple uses impacts dependent on design; supporting piers should not be built in existing channel permitting should be folded into 10th Street permitting package restricted use during construction high cost (depends on design) difficult to detect damage to existing foundations fewer steps and shorter sloped path design options may be limited by existing foundations ADA accessible approaches may be modified to improve access will be similar in width to existing bridge (6.5’) no impact permitting should be folded into 10th Street permitting package use will be restricted during construction low-medium cost (~20% more than alt 2) ALTERNATIVE 1 no action poor existing condition existing steps and sloped path to remain existing bridge is aesthetically pleasing not ADA accessible existing width (6.5’) is narrow but adequate for pedestrian use no impact no impact no impact no immediate cost high benefit/low negative impact benefit/medium impact low benefit/high negative impact ALTERNATIVE 5 new bridge at new location ALTERNATIVE 2 retrofit existing bridge ALTERNATIVE 4 new bridge on new foundation ALTERNATIVE 3 new bridge on existing foundation PEDESTRIAN BRIDGE ALTERNATIVES COMPARISON 0 15’ 30’ 60’ 120’ Improvements at Lake Merritt Channel ALTERNATIVE 1 NO ACTION