CITY OF SAN MATEO
RESOLUTION NO. ____ (2024)
UPDATING THE CITY’S STANDARD DRAWINGS FOR CONSTRUCTION
WH
EREAS, San Mateo Municipal Code Section 23.48.040 provides that all revisions of standard specifications for public works construction may be made by resolution of the Council; and WHEREAS, the City’s Standard Drawings are important standards for development, construction, and maintenance of public infrastructure within the City; and WHEREAS, the majority of the existing City’s Standard Drawings were last updated over 20 years ago, and substantial changes in technology, materials, and regulatory standards have since occurred that necessitate revisions to the City’s Standard Drawings; and WHEREAS, City staff have undertaken a comprehensive review of the existing Standard Drawings, including a comparative analysis of standard drawings from neighboring municipalities, which provided valuable insight into regional best practices in public works design; and WHEREAS, the proposed update to the City’s Standard Drawings is attached hereto as Exhibit A.
N
OW , THEREFORE, THE CITY COUNCIL OF THE CITY OF SAN MATEO, CALIFORNIA, HEREBY RESOLVES that:
1. A
doption of the Standard Drawings is not an action subject to CEQA, because it is an organizational or administrative activity that will not result in direct or indirect physical c
hanges in the environment. (CEQA Guidelines Section 15378(b)(5).)
2. Th
e City’s Standard Drawings attached as Exhibit A and incorporated by reference are hereby approved and adopted as the City’s minimum standards, specifications, and regulations for the construction of public works improvements in the City of San Mateo.
3. No
thing in this resolution shall be deemed to limit the authority of this Council, or any commission, board, or officer of the City to require higher or different standards as may otherwise be duly authorized or required.
4. Th
e Director of Public Works is authorized to sign the revised and new drawings in Exhibit A as approved.
5. T
his resolution shall go into effect on July 1, 2024.
TRENCH SECTION 1
(PAVED/UNPAVED AREA)
UTILITY TRENCH (TYPICAL STREETS)
Exhibit A
TRENCH SECTION(CONCRETE BASE STREETS)
UTILITY TRENCH (CONCRETE BASE STREETS)
ROCKWHEEL TRENCH SECTION
ROCKWHEEL TRENCH
NOTES:1.MICROTRENCHING SHALL ONLY BE USED TO INSTALL TELECOMMUNICATION CONDUITS IN ASPHALT CONCRETE ROADWAYS.2.MICROTRENCHING IS NOT ALLOWED ON OR THROUGH CONCRETE BASE STREETS, SIDEWALKS, PARKWAYS, CURBS, GUTTERS ORLATERALS UNLESS APPROVED BY THE CITY.3.CONTRACTOR SHALL IDENTIFY ALL EXISTING UTILITIES, INCLUDING SERVICE CONNECTIONS, IN THE FIELD.CONTRACTOR SHALL POTHOLE ANY CROSSING UTILITY OR PARALLEL UTILITY (INCLUDING LATERALS) WITHIN 18-INCH OFPROPOSED ALIGNMENT TO A DEPTH OF 6-INCHES BELOW THE BOTTOM OF THE MICROTRENCH. POTHOLES SHALL BEIMMEDIATELY BACKFILLED.4."T" CUT SHALL CONSIST OF REMOVEAL AND REPLACEMENT WITH HOT MIX ASPHALT OF FULL DEPTH OF THE ASHALT CONCRETE.5.THE EDGE OF THE MICROTRENCH SHALL HAVE A 2' MINIMUM HORIZONTAL CLEARANCE TO THE LIP OF GUTTER OR FACE OF CURBWHERE NO GUTTER EXISTS.6.WHERE THE "T" CUT EDGE IS WITHIN 3' OF THE ADJACENT CURB OR GUTTER, THE "T" CUT SHALL BE EXTENDED TO THE ADJACENTCURB OR GUTTER.7.UP TO TWO (2) VERTICALLY STACKED CONDUITS CAN BE PLACED WITHIN A MICROTRENCH. AT THE DISCRETION OF THE CITYENGINEER, AN ADDITIONAL CONDUIT SHALL BE PLACED ABOVE THE APPLICANTS CONDUITS, FOR USE BY THE CITY.8.CONDUITS MUST BE PLACED IN ZONE 1 FIRST. IF THERE ARE CONFLICTS PRESENT, THEN ZONE 2 MAY BE UTILIZED. ZONE 3 CANBE USED ONLY IF THEY ARE CONFLICTS PRESENT IN BOTH ZONES 2 AND 3.9.THE CONDUIT SHALL BE INSTALLED AT A MINIMUM DEPTH OF 12-INCHES BELOW THE EXISTING AC PAVEMENT SURFACE.10.ALL MICROTRENCHES SHALL BE IDENTIFIED WITH A METAL IDENTIFICATION TAG LISTING THE OWNER, YEAR OF CONSTRUCTION,AND INCLUDE THE WORDS "NOT A SURVEY POINT". IF THE WORK IS MORE THAN 50' IN LENGTH, PLACE THE TAG NEAR EACH ENDOF THE MICROTRENCH AND AT INTERVALS NOT EXCEEDING 50'.11.ALL STRIPING OR SIGNAGE DISTURBED BY THE PROJECT SHALL BE RESTORED TO CITY STANDARDS.12.PRIOR TO FINISHING THE WORK DAY, OPEN TRENCHES SHALL BE PLATED OR BACKFILLED AND PAVED WITH HMA.13.ASPHALT TYPE SHALL MATCH EXISTING ASPHALT. IF TYPE A, HOT MIX ASPHALT SHALL MEET 2010 CALTRANS STANDARD SPECIFICATIONS SECTION 39 (15% RAP).
CONDUIT ZONES16" - 20" (IF CONFLICTS ARE PRESENT, SEE ZONE 3)20" - 26" (IF CONFLICTS ARE PRESENT, SEE ZONE 2)12" - 16"
MICROTRENCH
POTHOLE SECTION
POTHOLE RESTORATION LIMIT
POTHOLE RESTORATION
CASE 2: TRENCH >25% LENGTH OF STREET
CASE 1: TRENCH <25% LENGTH OF STREET
CASE 3: TRENCH OVER CENTERLINELEGENDPAVEMENT RESTORATION (TRENCHES)
CASE 4: TRENCHS WITHIN 50' TO EACH OTHER
CASE 5: 8 OR MORE LATERALS ON SAME BLOCKLEGENDPAVEMENT RESTORATION (TRENCHES)
LEGENDCASE 8: DIAGONAL AT INTERSECTION ONLY
CASE 7: CENTERLINE
CASE 6B: INTERSECTION OPEN TRENCHSINGLE STREET WIDTH
CASE 6A: SINGLE STREET WIDTH ONLY
PAVEMENT RESTORATION (TRENCHES)
ASPHALT SPEED CUSHION
TYPICAL ELECTROLIER DETAILS
TYPICAL CONDUIT SECTION
TYPICAL PULL BOX DETAILS
TYPICAL UNDERGROUND SERVICE CONNECTION DETAIL
FUSE AND FUSE HOLDERS SPECIFICATIONS FORSTREETLIGHT CIRCUITS ” ”
TYPICAL UNMETERED CIRCUIT LAYOUT
PAVEMENT MARKINGS FOR STOP CONTROLLEDINTERSECTION APPROACH WITH MARKED CROSSWALK
TYPICAL SIGN POST INSTALLATION