Skip to main content
Loading…
This section is included in your selections.

A professional engineer or professional land surveyor licensed in the State of Wisconsin shall submit a site map(s) documenting the minimum as-built grading and storm sewer requirements as follows:

(a) Grading Plan.

1. Plan clearly labeled as “As-built Record Drawing” showing the location of the proposed BMP’s in combination with the site map at a scale of one (1) inch equals no more than 100 feet.

2. Final topographic contours overlaid on the proposed design contours with sufficient survey shots to adequately show constructed site drainage patterns.

3. Spot elevations sufficient to verify overland flood routing.

4. One set of cross-sectional survey points per 100 feet of conveyance system (emergency spillways, rock chutes, grass swales, etc.). Include enough points to verify the proposed design.

5. One set of cross-sectional survey points at all crest and sag locations of a newly constructed roadway (road centerline, edge of pavement, gutter, top of curb, centerline of road swale, right-of-way, etc.).

6. Retaining wall spot elevations (top and bottom) along the entire length of wall at every 100 feet.

7. Spot elevations at all proposed building pads.

8. Spot elevations at all property corners.

9. Type of engineered fill material used, if any, and top and bottom elevations of fill.

10. Description and elevation of all site benchmarks used.

11. Specific survey points to verify the construction of all stormwater BMP’s.

a. Sufficient spot elevations on the berm to outline the shape of basin (a minimum of one shot per 50 feet). The lowest points of the berm must be represented.

b. A minimum of two survey points documenting the elevation of any berm separating the basin forebay from the main pool.

c. Spot elevations outlining riprap aprons or emergency spillways.

d. Invert elevations of the basin outlet(s) (culvert inlet, culvert outlet, dewatering holes in risers, in-line weirs, etc.)

e. The top elevation of any outlet riser.

f. Measured internal diameters of risers, orifices, and other flow control devices.

g. The toe of the berm backslope.

h. The inside and outside edges of the top of the berm.

i. The edge of the water.

j. The inside and outside edges of the safety shelf.

k. The toe of the slope into the permanent pool as well as additional shots of the pond bottom.

l. For clay liners, either show bottom elevations before and after liner is installed, or document liner thickness through soil core sampling (resealing sample holes).

m. Location and type of the synthetic liner used, if any.

(b) Storm Sewer Plan. A complete set of the approved final engineering plans are to be utilized as the base sheets for the as-built record drawings. As-built record drawings are to show actual elevations alongside planned elevations. Planned elevations shall be neatly crossed out so that they are legible to compare to the as-built record elevations. All elevations should be referenced to the same bench mark datum as the original design plans.

1. Plan and profile sheets to be clearly labeled as “As-built Record Drawing” at a scale equal to that of the approved final engineering drawings.

2. Rim elevations on inlets, catch basins, manholes, and other special structures.

3. Invert elevation of all pipes within inlets, catch basins, manholes, end sections, headwalls, culverts and other special structures.

4. Linear distance along sewer from structure to structure, pipe size, and material.

5. Recalculated pipe slopes based on invert to invert elevations along the linear distance between structures.

6. The invert elevations and pipe diameter for all road culverts/channel crossings.

7. Description and elevation of all site benchmarks used.

Note: A Subdivision & Construction Site Stormwater Facility As-built Requirements Checklist as well as a Detention Pond Compliance Report shall accompany all stormwater as-built plan submittals. The checklist can be obtained on the Kenosha County website or by contacting P&D. [Code § 17.09-8.]