5.10.060 Public Frontages.
A. General to All Transect Zones
1. The public frontage is the area between the curb of the vehicular lanes and the Property Line/ROW. The public frontage contributes to the character of the transect zone, and includes the types of sidewalk, curb, planter, and street trees.
2. Public frontages shall be designed and allocated within transect zones as shown in Table 5.10.060.A-B
3. Within the public frontages, the prescribed types of public planting and public lighting shall be as shown in Tables 5.10.060.C-D. The spacing of the public planting may be adjusted with the approval of the Director to accommodate specific site conditions.
B. Specific To Transect Zones T1, T2, T3
1. The public frontage shall include trees of various species, naturalistically clustered, as well as understory.
2. The introduced landscape shall consist primarily of native species requiring minimal irrigation, fertilization and maintenance. Lawn shall be permitted only with approval by the Director.
C. Specific To Transect Zones T4, T5, T6
1. The introduced landscape shall consist primarily of durable species tolerant of soil compaction.
D. Specific To Transect Zones T4
1. The public frontage shall include trees planted in a regularly-spaced allee pattern of single or alternated species with shade canopies of a height that, at maturity, clears at least one Story.
E. Specific To Transect Zones T5, T6
1. The public frontage shall include trees planted in a regularly-spaced allee pattern of single species with shade canopies of a height that, at maturity, clears at least one
Story. At retail frontages, the spacing of the trees may be irregular, to avoid visually obscuring the shopfronts.
2. Streets with a Right-of-Way width of 40 feet or less shall be exempt from the tree requirement.
F. See Section 4.60 (Landscape and Utility Standards) for additional standards for landscaping and utilities within public frontages.
Public Frontage Type |
Transect Zone |
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---|---|---|
Key By Right By Warrant Not Allowed |
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(HW) For Highway. The For Highway Frontage has bicycle trails, no parking and open swales. The landscaping consists of the natural condition or multiple species arrayed in naturalistic clusters. Buildings are buffered by distance or berms. |
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T1T2T3T4T5T6 |
(RD) For Road. The For Road Frontage has open swales, a walking path or bicycle trail along one or both sides, and yield parking. The landscaping consists of multiple species arrayed in naturalistic clusters. |
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T1T2T3T4T5T6 |
(ST) For Street. The For Street Frontage has raised curbs drained by inlets and sidewalks separated from the vehicular lanes by individual or continuous planters. The landscaping consists of street trees of a single or alternating species aligned in a regularly spaced allee.1 |
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T1T2T3T4T5T6 |
(DR) For Drive. The For Drive Frontage has raised curbs drained by inlets and a wide sidewalk or paved path along one side, related to a Civic Space. It is separated from the vehicular lanes by individual or continuous planters. The landscaping consists of street trees of a single or alternating species aligned in a regularly spaced allee. |
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T1T2T3T4T5T6 |
(AV) For Avenue. The Avenue Frontage has raised curbs drained by inlets and wide sidewalks separated from the vehicular lanes by a narrow continuous planter or separate tree wells with grates with parking on both sides. The landscaping consists of a single tree species aligned in a regularly spaced allee. |
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T1T2T3T4T5T6 |
(CS) For Commercial Street or Avenue. The For Commercial Street or Avenue Frontage has raised curbs drained by inlets and very wide sidewalks along both sides separated from the vehicular lanes by separate tree wells with grates. The landscaping consists of a single tree species aligned with regular spacing where possible. |
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T1T2T3T4T5T6 |
(BV) For Boulevard. The Boulevard Frontage has slip roads on both sides. It consists of raised curbs drained by inlets and sidewalks along both sides, separated from the vehicular lanes by planters. The landscaping consists of double rows of a single tree species aligned in a regularly spaced allee. |
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T1T2T3T4T5T6 |
(RA) For Rear Alley. The Rear Alley Frontage is located to the rear of lots. It consists of a paved surface and ribbon curb at the edges adjacent to property lines or buildings. Alleys are typically not landscaped. |
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T1T2T3T4T5T6 |
(RL) For Rear Lane. The Rear Lane Frontage is located to the rear of lots. It consists of a paved surface and compacted gravel or similar material placed on the outer edges. Lanes are typically not landscaped. |
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T1T2T3T4T5T6 |
Table 5.10.060.B. Public Frontage Standards
This table assembles prescriptions and dimensions for the public frontage elements - curbs, walkways, and planters - relative to specific frontage types within transect zones. The Assembly row assembles all of the elements for the various frontage types.
Key |
T# By Right |
T# By Review |
T# Not Allowed |
---|---|---|---|
Transect Zone | T1T2T3T4T5T6 | T1T2T3T4T5T6 | T1T2T3T4T5T6 |
Public Frontage Type | HW-RD-ST | RD-ST | ST-DR-AV-BV |
Assembly: The principal variables are the type and dimension of curbs, walkways, planters and landscape. | |||
Total Width | 13' - 22' | 13' - 22' | 10' - 17' |
Curb: The detailing of the edge of the vehicular pavement, incorporating drainage. | |||
Type | Rural | Raised Curb | Raised Curb |
Walkway: The pavement dedicated exclusively to pedestrian activity. | |||
Type | Path (if provided) | Sidewalk | Sidewalk |
Width | 6' min. | 5' min. | 5' min. |
Note: the placement of curb ramps shall match the desired path of pedestrian travel. | |||
Planter: The layer which accommodates street trees and other landscape | |||
Arrangement | Clustered | Clustered | Regular |
Species | Multiple | Multiple | Multiple |
Type | Continuous Planter | Continuous Planter | Continuous Planter |
Width | 5' min. | 5' min. | 5' min. |
Transect Zone | T1T2T3T4T5T6 | T1T2T3T4T5T6 | T1T2T3T4T5T6 |
Public Frontage Type |
ST-DR-AV-BV |
CS-DR-AV-BV |
CS-DR-AV-BV |
Assembly: The principal variables are the type and dimension of curbs, walkways, planters and landscape. | |||
Total Width |
12' - 16' |
12' - 19' |
12' - 30' |
Curb: The detailing of the edge of the vehicular pavement, incorporating drainage. | |||
Type |
Raised Curb |
Raised Curb |
Raised Curb |
Walkway: The pavement dedicated exclusively to pedestrian activity. | |||
Type |
Sidewalk |
Sidewalk |
Sidewalk |
Width |
6' min. |
7' min. |
12' min. |
Note: the placement of curb ramps shall match the desired path of pedestrian travel. | |||
Planter: The layer which accommodates street trees and other landscape | |||
Arrangement |
Regular |
Regular |
Opportunistic |
Species |
Single/Alternating |
Single |
Single |
Type |
Continuous Planter |
Continuous Planter |
Tree Well |
Width |
5' min. |
5' min. |
4'-6' (tree wells located within Walkway width) |
Table 5.10.060.C. Public Planting
This table shows common street tree types and their appropriateness within the transect zones. The "City of Petaluma Design and Construction Standards and Specifications" provides detailed specifications for landscaping along thoroughfares. Street Tree Species not listed below require approval by the Director.
Permitted Zones |
Illustration |
Recommended Species |
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---|---|---|---|---|
Botanical Name |
Cultivar |
Common Name |
||
Key |
T# By Right |
T# By Warrant |
T# Not Allowed |
|
T1T2T3T4T5T6 Tree Shape: Columnar Spacing 20' - 35' o.c. |
Acer rubrum |
‘Bowhall’ or ‘Armstrong’ |
Bowhall or Armstrong Maple |
|
Acer platanoides |
‘Columnar’ |
Norway Maple |
||
Carpinus betulus |
‘Fastigiata’ |
Upright Hornbeam |
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Ginkgo biloba |
‘Princeton Sentry’ |
Ginkgo |
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Pyrus calleryana |
‘Glen’s Form’ |
Chanticleer Pear |
||
Quercus robur |
‘Skyrocket’ or ‘Crimschmidt’ |
Skyrocket Oak |
||
Prunus serrulata |
‘Amanogawa’ |
Amanogawa Cherry |
||
T1T2T3T4T5T6 Tree Shape: Ball Spacing 20' - 30' o.c. |
Acer fremanii |
‘Autumn Blaze’ |
Autumn Blaze Maple |
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Acer buergeranum |
Trident Maple |
|||
Acer rubrum |
‘October Glory’ |
October Glory Maple |
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Arbutus |
‘Marina’ |
Strawberry Madrone1 |
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Celtis australis |
European Hackberry |
|||
Lagerstroemia |
‘Indian tribes-mildew resistant varieties’ |
Crape Myrtle |
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Laurus nobilis |
‘Saratoga’ |
Sweet Bay1 |
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Magnolia grandiflora |
‘compact cultivars’ |
Evergreen Magnolias1 |
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Platanus acerifolia |
‘Columbia’ |
London Plane3 |
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Pistacia chinensis |
Chinese Pistache |
|||
Oleas europea |
‘Swan Hill’ |
Fruitless Olive1 |
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T1T2T3T4T5T6 Tree Shape: Umbrella Spacing 20' - 30' o.c. |
Arbuts unedo |
Strawberry Tree1 |
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Celtis sinensis |
Chinese Hackberry |
|||
Cercis canadensis |
Eastern Redbud |
|||
Ulmus parvifolia |
‘Drake’ |
|||
Quercus agrifolia |
||||
Prunus serrulata |
Umbrella formcultivars |
Flowering Cherry |
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Acer palmatum |
Umbrella formcultivars |
Japanese Maple |
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T1T2T3T4T5T6 Tree Shape: Vase Spacing 25' - 35' o.c. |
Cercis occidentalis |
Western Redbud |
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Acer palmatum |
Vase form cultivars |
Japanese Maple |
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Prunus serrulata |
Vase form cultivars |
Flowering Cherry |
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Zelkova serrata |
Zelkova3 |
|||
Ulmus parvifolia |
‘Alee’ |
|||
Pyrus calleryana |
‘Redspire’ |
Redspire Pear |
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Koelreuteria bipinata |
Chinese Flame Tree |
|||
Ginkgo biloba |
‘Autumn Gold’ |
Ginko |
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T1T2T3T4T5T6 Tree Shape: Palm Spacing 20' - 30' o.c. |
Phoenix caneriensis |
|||
Phoenix dactylifera |
||||
Washingtonia filifera |
||||
Washingtonia robusta |
Mexican Fan Palm1 |
All Street trees shall be planted and maintained to avoid conflicts with fire/emergency vehicles and have a minimum canopy clearance of 14’ at maturity.
1This species is an Evergreen Tree
2This species is a Semi-Evergreen Tree
3Due to the size of this species, the minimum planter width shall be 6’
4Due to the size of this species, the minimum planter width shall be 8’
Transect Zone |
T1 T2 T3 T4 T5 T6 |
T1 T2 T3 T4 T5 T6 |
T1 T2 T3 T4 T5 T6 |
T1 T2 T3 T4 T5 T6 |
T1 T2 T3 T4 T5 T6 |
Fixture Type |
Cobra Head |
Pipe |
Post |
Column |
Double Column |
Key |
T# By Right |
T# By Warrant |
T# Not Allowed |
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