<aside id="sidebar">
    <nav class="sidenav">
            <ul>
                {exp:channel:entries channel="{segment_1}" dynamic="no" entry_id="154|155|156"}
                <li>
                        <a href="/{segment_1}/{url_title}" {if url_title == "{segment_2}"}class="active"{/if}>{title}</a>
                </li>
                {/exp:channel:entries}
                <li>
                        <a href="/contact">Contact Us</a>
                </li>
            </ul>
    </nav>
</aside>