Series Material ASTM Standard or as Indicated Material
Description Test Description Minimum Frequency Comments
A Subgrade D-698
D-1557
Native or Import
Subgrade Proctor One per soil type
Additional Proctor required should soil type change
B Subgrade D-2922 Native or Import Subgrade
In Place Density, Nuclear Moisture
One per 100 linear metre, per 150 mm lift (minimum of 5 tests per 150 mm lift)
Density Tests on all lifts
C Subbase C-136
C-117 Pit Run Sieve Analysis
One washed sieve analysis per 1,000 tonne
D Subbase D-698
D-1557 Pit Run Proctor
One per source, per aggregate classification
E Subbase D-3017 Pit Run In Place Density, Nuclear Method One per 50 linear metre per 150 mm lift (minimum of 5 tests per 150 mm lift)
A control strip method will be required to establish % compaction, as per Alberta Transportation Specification ATT-58
F Base C-117 Crushed Aggregate Sieve Analysis One washed sieve analysis per 1,000 tonne
G Base D-698
D-1557
Crushed
Aggregate Proctor One per source, per aggregate classification
H Base D-2922 Crushed In Place Density, One per 50 linear metre per 150
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Aggregate Nuclear Method mm lift)
I Asphalt Concrete Pavement Asphalt Institute Manual MS-4 Asphalt Concrete Mix Mix Design,
Marshall Method One per individual project
Additional mix design required should material or source change
Series Material ASTM Standard or as Indicated Material
Description Test Description Minimum Frequency Comments
J Asphalt Concrete Pavement D-2172 C-136 & 117 D-2726 D-3203 Asphalt Concrete Mix Asphalt Cement Content, aggregate gradation, 3 Marshall Briquettes, voids calculation
One complete set as indicated under test description per 400 tonnes of ACP production (min. 1 per day of paving or per 1000m2 of asphalt placed)
All Marshall Briquettes to be field formed with minimum of 3 produced per location K Asphalt Concrete Pavement D-979 D-3203 D-2726 Asphalt Concrete Mix Percent Compaction by Coring Method and % Air Voids
Minimum one core per 1000m2 of
asphalt placed (minimum of 3 cores per lift) I Asphalt Concrete Pavement D-2922 Asphalt
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409. ROADWAY ACCESS AND APPROACHES GUIDELINES
The final location and construction of all approaches, whether as a condition of subdivision or not, must be approved by the County. Road approaches shall be located and constructed to access the parcels most desirable building location.
Where a mutual approach is required, an easement document must be placed on the titles defining the easement area(s), benefited and burdened parcels and the rights and responsibilities of the landowners.
An acceptable road approach as per Figure 400.18 shall meet the following criteria:
• No road approaches shall be located less than 150m (492ft) from a bridge, culvert larger than 1.5m in diameter or from an at-grade railway crossing
• Approaches on curves are not desirable and are only allowed with the written permission of the County once confirmation that safety issues have been evaluated and design parameters clearly minimize any safety risk to the public.
• No road approaches shall be located within 45 m of the intersection of two local roads unless no other alternative exists in accordance with Figure 400.19.
• All road approaches that are proposed within 800m of a Highway shall be referred directly to Alberta Transportation for a Roadside Development Permit or Waiver
• A road approach providing access to a panhandle shall be centered within the minimum allowable panhandle width of 12.5m.
409.1 Road Approaches as a Condition of Subdivision
The maximum allowable number of approaches per residential lot is one (1); however, the existence of two (2) farm approaches per 800 meters of frontage is acceptable if the approaches have the appropriate sight distance and sufficient drainage, at the discretion of the County.
If weather conditions prevent the construction of an approach, AND all other conditions of subdivision have been met, the Developer has an option to enter into a Road Approach Construction Agreement at the discretion of the County.
409.2 Removal and Reclamation
The removal and reclamation of approaches and cul-de-sacs may be required as a condition of Subdivision or Development Permit. The area where material is removed must be graded to match existing grade, top soiled and seeded. Where cul-de-sacs are removed and reclaimed, the Developer will be required to relocate fencing at their own expense. Reclaimed areas are the responsibility of the Developer until FAC is issued for the Development in its entirety.
63 | P a g e 409.3 Road Approaches NOT as a Condition of Subdivision
Applications must be made to the County (Road Operations Department) for all proposed approaches not a condition of subdivision. The construction requirements for these approaches are the same as for Road Approaches as a condition of subdivision, and each lot may only have one approach.
409.4 Field Access
Field access is acceptable for parcels greater than 30 acres and is not accessing a residential unit. Construction of these approaches shall provide for appropriated sight distance and shall not interfere with drainage in the area.
Table 400D – Approach Design
Type of Approach Min. Finished Width Structure Side Slopes
Field Approaches Varies Varies Varies
Rural / Country Residential
Approaches 6.1m or 7m for mutual
Gravel Road:
75mm Designation 4 Class 20 granular material
3:1 Hard Surface Road:
50mm Type A Asphalt over 200mm of Designation 2 Class 20 granular material
Urban (with curb and gutter)
Varies subject to the approval of the County
50mm Type A Asphalt over 200mm of Designation 2 Class 20 granular material
Not Applicable
Industrial/
Commercial 10m
At a minimum must match structure of
road providing access to lot 4:1
NOTE: 450mm (min) culvert required for all rural approaches unless otherwise approved in writing by the County
Table 400-E – Site Distances
Posted Speed on Main Road (km/h)
Minimum Sight Distance Requirement from Intersecting Road/Approach (m)
Passenger Single Unit Truck/Buses
Less than or equal to 40 75 120
50 90 150 60 115 175 70 135 205
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80 155 235 90 175 270 100 195 295
Distance shall be measured with an object height of 1.3m on the main road in all cases. The eye height to be used at the intersection is 1.05m for passenger vehicles and 1.8m for single unit trucks and buses. To determine sight distance requirements for an approach/intersection all types of vehicles that are expected to use the approach/intersection on a regular basis must be considered. The above chart shows minimum sight distances for passenger vehicles and single unit trucks and buses. If other types of vehicles are expected to use the approach/intersection, sight distances may be determined by the Highway Geometric Design Guide.
410. INTERSECTIONS
Intersections shall be designed for the turning radius of the applicable design vehicles as noted by County staff and/or as required in the examined Traffic Impact Assessment. In addition, design must include structural integrity, acceleration capability, safety of the motoring public and good engineering practices in accordance with the “Manual of Geometric Design Standards for Canadian Roads”. In addition, obtaining any corner cuts required based on the design intersection as per the examined Traffic Impact Assessment shall be the Developer’s responsibility.
411. EMERGENCY ACCESS
Any rural development that will result in 10 lots or greater shall have two separate access points to an existing through road. In cases where there is not a through roadway a separate access shall be provided to the nearest adjacent road. In either case the separate access can be a road built to County standard or Secondary Emergency Access in accordance with Figure 400.20 Any urban development that results in a dead-end road longer than 90m shall not be permitted.
Council will have the ability to waive the requirements noted in the above paragraph at their discretion at the time of Subdivision.
Secondary Emergency Access roads shall be restricted by the use of gates at each end. See Figure 400.21 for typical gates.
This access is restricted to emergency vehicle traffic only and must be signed with a checker board on the gate and the gate must be locked with a locking device to the satisfaction of the County’s Fire Services Department.
412. DITCHES
All ditches shall be constructed with positive drainage and shall not be designed to be a storage facility for stormwater.
Ditch checks are required for any ditch that has a 4% or greater grade or is prone to erosion. Ditch checks shall be considered as part of the design of the subdivision and addressed in the storm water management plan.
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Ditch checks shall be of a permanent nature and shall be maintained by the Developer until final acceptance of the subdivision by the County.
The minimum acceptable ditch check detail is as per Figure 400.22. Alternative designs proposed by the Developer’s Engineer must be approved in advance by the County. Straw Bale ditch checks are not acceptable.
Ditch checks shall be a minimum of 5m from any culvert inlet or outlet; and have a maximum spacing of 20 metres.
413. CULVERTS
Approach culverts shall not be less than 450mm in diameter, and cross grade culverts shall not be less than 600mm in diameter, and maximum culvert length is 20m.
Culverts greater than 1.5m in diameter will require approvals from the County, Alberta Transportation and Provincial approvals and potential Federal approvals where required.
Unless otherwise specified, pipe culvert material shall be either CSP or CMP, have a minimum 1.6 mm wall thickness and shall be supplied by the Developer. Pipe culvert material supplied will also include joining and anchoring materials. All new culverts must be installed with sloping ends. Sloping ends must be manufactured and no field cutting is permitted unless with the written permission of the County.
Excavation and installation for the culvert shall be in accordance with the manufacture’s specifications. The minimum slope of the culvert shall be 0.6% or constructed grade, whichever is greater.
All backfill material shall be placed in layers not exceeding 150mm in depth. Each layer shall be thoroughly compacted at optimum moisture content to a minimum of 98% SPMDD. Backfill and compaction layers shall be brought up simultaneously and evenly on both sides of the pipe. This compaction procedure shall be continued until the backfill reaches a minimum elevation of 300mm above the top of the pipe, or greater if necessary to carry the weight of construction equipment without damage to the pipe.
Riprap is a protective covering consisting of hand-laid or randomly deposited rock which is placed around culvert inlets and outlets and along slopes, backslopes and ditches. Riprap shall be placed at all culvert inlets and outlets, extend 1.0m beyond both ends of the culvert, and wrap around the top of the culvert. Riprap may be required at other locations as directed by the Engineering Consultant and/or the County.
Rock riprap shall consist of sound, durable stone or pit-run gravel. The gradation of the mixture shall be such that all of the riprap consists of material having a minimum dimension of 100 mm and at least 50% having a minimum dimension of 200mm.
414. SIGNAGE
Road name, regulatory and non-regulatory signs shall be installed in accordance with Figures 400.23 and 400.24. It is the responsibility of the Developer to erect approved street signage to reflect the County approved street names.
66 | P a g e 414.1 Subdivision Entry Signs and Entrance Features
Subdivision entry signs shall not be located within Municipal Reserves or Municipal Road ROW. Any subdivision entry signs of a permanent or semi-permanent nature are the responsibility of a condominium corporation, homeowners association and/or the developer. A Developer may create a distinct PUL for the placement of an Entry Sign or Feature but the responsibility for the maintenance of the PUL will be the responsibility of the condominium corporation, homeowners association and/or the developer. In the case where a PUL is created for the entry signage or feature and the feature or sign is not maintained or falls into disrepair the County will not be responsible for repair or replacement and reserves the right but not the obligation to remove the signage or feature. The County reserves the right to require the Developer, Condominium Association, and/or Homeowners Association to enter into an agreement outlining the responsibilities outlined.
415. MAIL BOX TURNOUTS
Mail Box Turnouts should be located on local residential roads as opposed to grid roads. Mailbox turnouts shall be positioned to allow the safest vehicle access while ensuring postal service, and are required for subdivision roads where Canada Post Corporation requires. The start of the mailbox turnout must be a minimum of 45 metres from any intersection and acceptable sight lines shall be maintained at all times. Each installation of a mailbox turnout is site specific and must be reviewed and approved by Canada Post Corporation, see Figure 400.MB. All mailbox turnouts must be constructed to the satisfaction of Canada Post Corporation and the County.
416. SUBDIVISION AND ROAD NAMING APPLICATION
The Developer shall apply for subdivision and street name(s) approval when the subdivision is conditionally approved, to allow for enough time for the road naming to be approved prior to Endorsement of the subdivision. Contact the County’s Geographic section for Road Naming Application requirements.
Supply and installation of the street name(s) blade(s) is at the Developer’s expense and CCCs will not be issued if street name blades are not posted, along with other required signage. Street blades must be in accordance with Figure 400.24.
417. PATHWAYS
Pathways shall generally follow the requirements as provided by the Municipal Lands Section. In addition to the Municipal Lands information, typical details are provided in Figures 400.25, 400.26, and 400.27.
418. CONCRETE CURBS AND SWALES
Curbs shall be in accordance with Figures 400.28, 400.29, and 400.30.
419. ENVIRONMENTAL RESERVES (ER)
For instances when Council has given direction and permission for a road crossing an ER the road shall be in accordance with Figure 400.31.
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TABLE 400-F
Cross Section Elements Alginment Road Structure
Classification Description and Notes 1,2
Daily Traf fic Volu mes (VPD) N u
mber of Lanes Sur
face Type D e s ign Speed (k m/ h) Posted Speed 10 (km/h) M in . Co rn e r Rad iu s (M) Min Rright-of-Way (M) Mi n. Sur face Wi dth / Mi ni mum Subgr ade wi dth (M) Si de/B ack Sl ope Rat io Min. Bottom D itch Wi dth (m) Mi ni mum Di tch D e pth Mi ni mum R a d ius (m) Minimum Crest (K) Minimum Sag (k) Max. / M in. G radie nt (r oad di tch) / (%) A s phal ti c C oncrete D e pth (mm) Gr anul a r B ase D e pth (mm) Granula r Subbase D e pth (mm) or acceptable equal
Internal Subdivision Roads
Residential Back Lane
Access to back of lots in urban subdivisions. - - Paved 30 - - 6 - - - 6.0 / 0.6 50 75 150 (BL)
Urban Residential (400.1) Access lots < 2 acres. Sidewalk and parking on both sides. 2.5m driving lanes and 2.0m parking
lane <1000 2 Paved 50 40 9 15 9.0 / 12.0 -
Curb &
Gutter - 80 12 12 7 / 0.6 90 100 200 (UR)
Urban Residential Collector (400.2) Collects traffic from Urban Residential. Sidewalk and parking on both sides. 3.5m driving lanes and 2.25m parking lanes
1000 - 5000 2 Paved 60 50 10.5 20 11.5 / 13.5 - Curb & Gutter - 120 20 20 7 / 0.6 120 150 250 (URC)
Urban Primary Collector (400.3) Collects traffic from other Collectors. Sidewalk on both sides, no parking allowed, 3.5m driving lanes. Reduced ROW for undivided.
5000 - 10000 2 or 4 Paved 60 50 10.5 27 14.0 / 16.0 - Curb & Gutter - 120 20 20 7 / 0.6 130 150 250 (UPC)
Urban Industrial / Commercial Urban local industrial road servicing lots. Separated sidewalk on both sides, no parking allowed, 4.75m driving lanes. Add 2.5m pavement for parking on one side
N/A 2 Paved 60 50 ** 19 9.5 / 11.5 - Curb & Gutter - 120 12 12 4 / 0.6 130 150 250 (UI/C)
Country Residential (400.4)
Internal rural residential road accessing less
than 10 lots and is not a through road. <200 2 Paved 50 40 10 25 7.0 / 9.0 3:1
2.5
may vary 1 80 12 12 7 / 0.6 90 100 200 (CR)
Country Collector (400.5)
Minor residential collector accessing more than 10 lots and/or is a through road.
200 - 2,000 2 Paved 60 50 15 25 8.0 / 10.0 3:1 2.5 may vary 1 120 20 20 7 / 0.6 120 100 250 (CC) Industrial / Commercial3 (400.6)
Directly services lots in industrial / commercial
subdivisions. N/A 2 Paved 60 50 ** 30 10.0 / 13.5 4:1 may vary 2.0 1 120 12 12 4 / 0.6 130 150 250 (I/C)
Industrial/Commercial Collector4
(400.7) Main access road that services all aspects of
industrial and commercial subdivisions. N/A 2 or 4 Paved 80 70 ** 36 18.0 / 21.4 4:1 / 3:1 may vary 2.0 1 230 35 35 7 / 0.6 150 175 300 (I/CC)
Municipal Grid Roads
Regional Low Volume5 (400.8) Not applicable to internal roads. Not a through road with max 200 VPD from new access to nearest developed intersection of RMV Standard or higher
<200 2 Gravel 70 60 10 20 7.0 / 9.0 3:1 V ditch 1 170 25 25 8 / 0.6 - 100* 250 (RLV)
Regional Moderate Volume5,6
(400.9) Moderate traffic volume regional network road. Through and non through road with less than
500 VPD <500 2 Gravel 90 80 10 20 8.0/10.0 3:1 V ditch 1 300 55 40 8 / 0.6 - 100* 250 (RMV)
Regional Transitional Paved5,6
(400.10) Moderate traffic volume regional network road. For use when limitations of existing ROW exist
and a paved standard is required. 200-1000 2 Paved 90 80 10 20 8.0/10.0 3:1 V ditch 1 300 55 40 8 / 0.6 120 100 300 (RMVP)
Regional Collector7 (400.11)
High traffic volume regional network road. 501 - 2500 2 Paved 90 80 ** 30 9.0 /12.5 4:1 may vary 2.5 1 300 55 40 6 / 0.6 120 100 300 (RC)
Regional Arterial8 (400.12)
High traffic volume road. >2500 2 Paved 100 90 ** 30 10 4:1 may vary 3.5 1 390 75 50 3 150 100 300 (RA)
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1 Minimum cul-de-sac bulb radius may include sidewalks when rolled curbs and subgrade to match road design is implemented 2 For urban cross section refer to City of Calgary Design Guidelines for Subdivsion Servicing Undivided Major (Sheet 13) 3 Same classification as UCU50 in TAC Geometric Design Standards Manual.
4 Same classification as UCU80 in TAC Geometric Design Standards Manual.
5 Regional transportation network roads encompass all of the originally surveyed government road allowance, which are generally gravel surfaced with a 9.0 m subgrade width, within 20 m right-of-way, however may remain undeveloped at this time. 6 Same classification as RCU80 in TAC Geometric Design Standards Manual.
7 Same classification as RCU90 in TAC Geometric Design Standards Manual. 8 Same classification as RCU100 in TAC Geometric Design Standards Manual. 10 Any School or Playground zones must be posted at 30km/h
* See Section 405
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WASTEWATER AND SEWAGE
Wastewater and sewage is regulated Provincially under the Environmental Protection and Enhancement Act. The Developer is responsible to ensure that all wastewater and sanitary sewer facilities and infrastructure is designed and constructed in accordance with the manufacturer’s design guidelines, Alberta Environment approvals and good design and construction practices. All wastewater and sanitary sewer disposal proposals must identify systems in accordance with Alberta Environment regulations and guidelines. Plans, Engineered Drawings, specifications and a letter report prepared by a qualified Professional Engineer must be submitted to the County and Alberta Environment for review and approval prior to construction.
The Developer is responsible to ensure that the requirements of all Provincial legislation, regulations, guidelines and standards for wastewater and sanitary sewer systems are complied with including but not limited to:
• Environmental Protection and Enhancement Act • Wastewater and Stormwater Drainage Guidelines
• Standards and Guidelines for Municipal Waterworks, Wastewater and Stormwater Drainage Systems
• Subdivision and Development Regulations
Development will be reviewed on a case by case basis by Engineering Services to determine the requirement of Wastewater servicing. Engineering Services will base this review on existing area densities, existing drainage issues, scope of development and other matters of concern as deemed appropriate.
The Developer is required to identify the proposed sewage treatment system for their proposed development at the time a development or subdivision application is made to the County. This section lists the procedures and design requirements related to wastewater servicing for a proposed development. Unless otherwise stated by the County, all reporting, testing, and engineering design shall be certified by a Professional Engineer.
Both the Municipal Government Act and the Subdivision and Development Regulation provide the County with the authority to ask the subdivision proponent to undertake a site evaluation and provide information that proves out the suitability of the parcels for the Private Sewage Treatment System (PSTS). The Municipal Government Act gives the County the responsibility to ensure that subdivisions relying on PSTS are properly investigated and the proposed parcel(s) is determined to be suitable for on-site sewage treatment. It also puts the onus on the Developer to
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prove the viability of the subdivision proposal to the satisfaction of the County. The County requires that the disposal of sewage for each proposed lot is feasible, is not a public health danger, and is not a concern for public safety.