Chapter 12.56
CONSTRUCTION CONTROL AND INSPECTION
Sections:
12.56.010 Basis for control of the work.
12.56.030 Subdivision, commercial and right-of-way development inspection.
12.56.040 Certification of inspections and testing.
12.56.050 Inspection and notification requirements.
12.56.060 Materials sampling and testing.
12.56.080 County forces and county contract road inspection.
12.56.010 Basis for control of the work.
A. Work performed in the construction or improvement of county roads, whether by or for a private developer, by county forces, by county contractor or by private contractor, shall be done in accordance with these standards and approved plans. It is emphasized that no work may be started until such plans are approved. Any revision to such plans shall be approved by the county engineer before being implemented.
B. The county engineer will have authority to enforce the standards as well as other referenced or pertinent specifications.
C. Provisions of Section 1-05 of the WSDOT Standard Specifications shall apply, with the term “engineer” therein construed to be the county engineer as defined in these standards.
D. Unless otherwise approved or directed, all construction work shall be done in accordance with the WSDOT Standard Specifications.
E. Prior to beginning construction activities within existing right-of-way, a permit to perform work in the right-of-way shall be secured. Restoration sureties may be required by the county engineer in the manner provided for in DCC Section 12.50.110. (Ord. TLS 09-11-49E (Exh. B) (part): Ord. TLS 04-02-30B Exh. A (part))
12.56.020 Hours of work.
Unless otherwise approved by the county engineer prior to beginning construction, the normal work hours for construction are as follows:
|
Monday through Friday |
6:00 a.m. to 7:00 p.m. |
|
Saturday |
7:00 a.m. to 7:00 p.m. |
|
Sunday |
8:00 a.m. to 7:00 p.m. |
(Ord. TLS 09-11-49E (Exh. B) (part): Ord. TLS 04-02-30B Exh. A (part))
12.56.030 Subdivision, commercial and right-of-way development inspection.
A. The county engineer will appoint such personnel as necessary to inspect the work on public roadway and drainage projects undertaken by the county and on all access permits, and they will exercise such authority as the county engineer may delegate. On all other projects, including all subdivision construction work and improvements on unopened county right-of-way, the applicant’s engineer shall be responsible for all inspections outlined in this section.
B. Failure to comply with the provisions of these standards may result in stop work orders, removal of work accomplished, or other penalties as established by law. (Ord. TLS 09-11-49E (Exh. B) (part): Ord. TLS 04-02-30B Exh. A (part))
12.56.040 Certification of inspections and testing.
For all road and drainage work, other than that performed by the county on county road and drainage projects and access permits, the county requires the applicant to engage the services of a professional engineer to document and certify all inspections and testing during the construction process. It is also the responsibility of the applicant and their engineer to provide the day-to-day inspection of such work, perform such inspections and testing of materials and their placement as may be required, and to certify all such inspections and testing including compliance with the approved plans and these standards. A daily activity diary shall be kept by the applicant’s engineer or his/her designee for all days that there is road or drainage work performed on the site. Copies of all test records, inspection records and the daily diary shall be furnished to the county engineer on a weekly basis. At the time of each of the inspections as set forth in DCC Section 12.56.050, the county engineer or his/her designee will visit the project site to review the work related to the required inspection. Such site visits do not relieve the applicant, the contractor or the applicant’s engineer of any responsibilities for performing all work in accordance with the approved plans and these standards. The county engineer or his/her designee may also visit the project site from time to time to monitor the overall progress of the project. (Ord. TLS 09-11-49E (Exh. B) (part): Ord. TLS 04-02-30B Exh. A (part))
12.56.050 Inspection and notification requirements.
A. On all road construction by subdivision ordinance and work performed within the county right-of-way, inspection of the work will be done by the applicant’s engineer or his/her designees under the overall authority of the county engineer. Unless otherwise instructed by the county engineer, the inspections will be made by and certified by the applicant’s engineer as follows:
1. Inspection No. 1. Temporary sedimentation and erosion control in accordance with approved plans.
2. Inspection No. 2. Underground storm drainage, at the stage that trenching and placing of pipe are completed but prior to cover. If the scope of the project is such that there is more than one trenching, placing and covering required, each such sequence shall be inspected separately.
3. Inspection No. 3. Underground utilities within the right-of-way, including sewers and storm drainage, shall be inspected during backfilling for compliance with the standard specifications and the requirements of the utility permit issued in conformance with the Douglas County “Accommodation of Utilities Within County Road Right-of-Way.”
4. Inspection No. 4. General roadway at the stage that the subgrade has been completed. If the scope of the project is such that the subgrade is completed in stages and is ready for surfacing materials, each such stage shall be inspected separately.
5. Inspection No. 5. General roadway at the stage that the gravel base has been placed and compacted and the curbing, if required, has been formed. If the scope of the project is such that the gravel base is completed in stages and is ready for additional surfacing materials, and the curbing, if required, has been formed for that section, each such stage shall be inspected separately.
6. Inspection No. 6. General roadway at the stage that crushed surfacing top course has been placed and compacted.
7. Inspection No. 7. General roadway, at the beginning of paving.
8. Inspection No. 8. Overall roadway, final, after paving, monument inspection, cleaning of drainage systems, and all necessary clean up.
9. Structural Inspections. Structural inspections shall be at critical stages of foundation, placement and assembly of components and final completion and tests, as directed by the county engineer.
B. The county shall be notified not less than three working days before construction is started. The applicant is responsible for scheduling a preconstruction conference with the county. Other jurisdictions, the applicant’s engineer, the applicant’s contractor, utility companies, subcontractors and other necessary parties to the project shall be present at the preconstruction conference.
C. The applicant or the applicant’s engineer shall notify the county engineer’s office at least one working day in advance of the beginning of each required inspection. Failure to comply with inspection requirements may necessitate appropriate or additional testing and certification as directed by the county engineer. Costs of such testing and certification shall be borne by the contractor, and for subdivision roads, it shall be the developer. At the time that such action is directed by the county engineer, no further work will be permitted on the road or subdivision until all tests have been completed and all corrections have been made to the satisfaction of the county engineer.
D. If the contractor believes that the inspection sequence indicated above does not fit the requirements of a particular project, he/she should make a request to the county engineer in sufficient time to permit revision to the inspection schedule. (Ord. TLS 09-11-49E (Exh. B) (part): Ord. TLS 04-02-30B Exh. A (part))
12.56.060 Materials sampling and testing.
Materials sampling and testing shall be at the frequency and magnitude as set forth in the WSDOT Construction Manual. In the case of plat roads, testing and sampling shall be performed by a private testing laboratory. Certified test reports shall be furnished for all tests performed by private testing laboratories. (Ord. TLS 09-11-49E (Exh. B) (part): Ord. TLS 04-02-30B Exh. A (part))
12.56.070 Traffic control.
A. The applicant or their contractor shall provide, place and maintain all Washington certified flaggers, flagger protective apparel, barricades, lights, standard signs, cones and other devices, equipment, and personnel necessary for the protection of the public and maintenance of traffic through the limits of the project at the applicant’s expense. If the county finds an unsafe condition, the applicant, contractor, and applicant’s engineer, if warranted, shall be notified and shall be required to correct the situation immediately. In some circumstances involving an immediate hazard to public safety, the county may make the appropriate corrections. The applicant shall be responsible for all costs incurred by the county.
B. In addition to the requirements contained in the standard specifications, the following will be required:
1. The applicant shall maintain at least one-way traffic through the limits of construction at all times and shall open the roadway to two-way traffic during periods when actual work is not in progress.
2. Access to side roads and private driveways shall be maintained at all times unless otherwise authorized by the county engineer.
3. The applicant or his/her contractor shall coordinate with the U.S. Postal Service when construction requires mailboxes to be relocated or rearranged.
4. When it becomes necessary to restrict access to private driveways for construction purposes, as approved by the county engineer, the applicant shall inform affected residents at least twenty-four hours in advance and minimize inconvenience to residents of the area.
5. When temporary road closures cannot be avoided and are approved by the county engineer, the contractor shall post “To Be Closed (insert dates)” signs a minimum of five days prior to the closing. The types and locations of the signs shall be shown on a detour plan. A detour plan must be prepared and submitted to the county engineer at least ten working days in advance of the proposed closure, and be approved prior to closing any county roadway. In addition, the contractor must notify, in writing, local fire, school, law enforcement authorities, postal service and any other affected persons as directed by the county engineer at least five days prior to the closing.
6. If the construction of a proposed development is determined by the county engineer to require special routing of large trucks or heavy construction equipment to prevent impacts to surrounding roads, residences or business, the contractor shall be required to develop and use an approved haul route and enter into a haul route agreement as specified in DCC Section 12.28.150 establishing restoration procedures and work to be performed by the contractor upon completion of the haul operation. When required, the haul route plan must be prepared and submitted to the county engineer and approved prior to beginning or continuing construction. The haul route plan shall address routing, hours of operation, signing, flagging and daily maintenance. If the contractor’s equipment or suppliers fail to use the designated haul route, the county engineer may prohibit or limit further work on the development until such time as the requirements of the haul route are complied with. (Ord. TLS 09-11-49E (Exh. B) (part): Ord. TLS 04-02-30B Exh. A (part))
12.56.080 County forces and county contract road inspection.
Road construction performed by county forces or by contract for the county will be inspected under supervision of the county engineer. (Ord. TLS 09-11-49E (Exh. B) (part): Ord. TLS 04-02-30B Exh. A (part))
12.56.090 Utilities.
A. Existing utilities must be protected from damage by the contractor.
B. Contractors shall utilize the one-call center service for the location of utilities a minimum of forty-eight hours in advance of any construction.
C. The contractor shall obtain separate access or utility permits from the county before undertaking any construction work within the existing county right-of-way adjacent to the project. Restoration sureties may be required by the county engineer in the manner provided for in DCC Section 12.50.110. (Ord. TLS 09-11-49E (Exh. B) (part): Ord. TLS 04-02-30B Exh. A (part))
12.56.100 Posting of site.
For all new major subdivision work and planned developments, the applicant shall post one or more signs showing the name of the subdivision or development, and the name or business name of the applicant, the applicant’s engineer and the prime contractor along with a contact telephone number for each. The signs shall show the names and telephone numbers in suitably contrasting text not less than two inches in height. The signs shall be placed at the access point(s) from the county road to the new development and not more than twenty-five feet from the near edge of the county road. (Ord. TLS 09-11-49E (Exh. B) (part): Ord. TLS 04-02-30B Exh. A (part))
12.56.110 Final acceptance.
Upon completion of all work, the applicant shall request acceptance by the Douglas County engineer. As part of the acceptance process, the county engineer shall review all documents including test reports, inspection certifications, daily diaries, and any notes made by the county engineer or his/her designee during all site visits. The county engineer, the applicant and the applicant’s engineer shall conduct an on-site review of the project to ascertain the level of completeness of the project including cleanup. If the county engineer is satisfied that the project has been completed in conformance with the approved plans, these standards, and all other requirements that may have been imposed by means of approved change orders, he/she shall provide the applicant with a written acceptance. (Ord. TLS 09-11-49E (Exh. B) (part): Ord. TLS 04-02-30B Exh. A (part))