R 281.823 Bridge construction procedures.

Rule 13. (1) Each construction project shall be completed so as to prevent erosion and subsequent damaging siltation of streams or lakes. The area of erodible land exposed to the elements by the grading operations at any one time shall be controlled by the owner's engineer and the duration of such exposure before final trimming, finishing, or maintenance of the area shall be as short as practicable. (2) Gravel or stone consisting of durable particles of rock and containing only negligible quantities of fines shall be used for construction pads, haul roads, and temporary roads in or across streams. (3) When required by the department, a sedimentation basin shall be constructed downstream from the work site to trap silt and sediment resulting from construction operations. A detailed sketch of a sedimentation basin is available on request from the department. The collected silt and sediment shall be removed as directed by the owner's engineer and the sedimentation basin shall be removed on completion of the project if directed by the department. If found necessary, the department may assist the owner in the design of a sedimentation basin. (4) The disturbance of lands and waters that are outside the limits of construction as staked shall be avoided. (5) The owner shall give written notice 5 days before the start of work.