def structureChunk(keywords, resultDict, lines):
    """
    Parse Weir and Culvert Structures Method
    """
    chunks = pt.chunk(keywords, lines)

    # Parse chunks associated with each key
    for key, chunkList in iteritems(chunks):
        # Parse each chunk in the chunk list
        for chunk in chunkList:
            # Strip and split the line (only one item in each list)
            schunk = chunk[0].strip().split()

            # Extract values and assign to appropriate key in resultDict
            resultDict[key.lower()] = schunk[1]

    return resultDict