prov:value
| - (a)temporarily alter or interfere with the river and construct, place and maintain within the relevant limits in the river all such temporary piles, fenders, booms, dolphins, pontoons, caissons, cofferdams, embankments, aprons, abutments, stagings, piers, wharves, walls, fences, drains, stairs, buildings or other works as he may deem necessary or expedient;
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