The finished grade and slope of the inlet tops are to conform with the finished cross slope and grade of the proposed sidewalk and or border. For inlets constructed on a curve, refer to the plans to determine the radius, and modify the inlet details accordingly. It may be necessary to bend the steel depending upon the design specifications.

Inlet tops shall be either cast-in-place or precast concrete. Precast units shall conform to the dimensions shown or by approved shop drawings. Request for shop drawing approval shall be directed to the state drainage engineer.

All steel used for frame and grate shall meet the requirements of ASTM A36/A36m.

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