2.31 Private Streets, Common Driveways and Flaglots
a. Private streets serving more than three (3) residences shall be constructed to public street baserock and pavement section standards.
b. A turn-around shall be required for any private residential street which has only one outlet and which is in excess of 150 feet long or which serves more than two residences, or as required by the Oregon Fire Code. Non-residential private streets serving more than one ownership shall provide a tum-around if in excess of 200 feet long and having only one outlet, or as required by the Oregon Fire Code. Tum-arounds for private streets shall be either a circular tum-around with a minimum paved radius of 35 feet, or a tee or hammerhead turnaround conforming to the standard details, or as required by the Oregon Fire Code.
c. Pavement sections and widths for private streets, common driveways, flaglot drives or partition access easements shall conform to the following:
|
Classification5 |
Pavement Thickness (inch) |
Baserock Thickness (1 inch minus) |
|
|---|---|---|---|
|
Common Drives or Private Streets serving 3 or more residences, 3, 4 5 |
20 ft |
2½ (AC) |
8 |
|
Fire Lane minimum5 (match local street AC/rock section where serving more than 4 residences, or match parking lot access route where applicable) |
6 (PCC) |
2 |
|
|
Flag Lot Driveway6 |
20 ft |
2½ (AC) |
6 |
|
6 (PCC) |
2 |
||
|
Vehicular Access Easement |
20 ft |
2½ (AC) |
6 |
|
6 (PCC) |
2 |
1- Wider pavement widths may be required by the Silverton Fire District chief or by Oregon Fire Code requirements.
2- Paved width shall be measured from the face of curb where curbs exist
3- Recorded maintenance agreement required.
4- Sidewalk to City standards required along one side of private street or common residential driveway for entire length. Provide PUE along one side of street easement for franchise utilities where applicable.
5- All common residential driveways & private streets shall be designated as fire lanes and signed for no parking, and shall meet the fire apparatus access road requirements of the Oregon Fire Code where applicable (CDC 3.4.100.D).
6- CDC 4.3.115.C, access to more than three parcels from a single common flagstem driveway prohibited.
Easement widths for fire lanes or driveways across other property are to be a minimum of 5 feet wider than the paved width (see also Detail 220).
d. Flaglot Drive Grading. As a minimum, all grading for single flag lot drives shall be completed by the developer at the time of street and utility construction.
e. Common use driveways, flaglots, private streets and fire lanes shall be paved by the developer at the time of street and utility construction to ensure that they are serviceable prior to building permit issuance per Oregon Fire Code requirements (OFC 501.4).