the arcgis application by the texas department of transportation provides access to engineering plans for highway, maintenance and aviation projects. What does this site provide? The texas department of transportation (txdot) provides free access to project plans and related documentation for bidding. plans online provides engineering plans, informational proposals, addenda, bid tabs and contract plans for txdot's bid lettings. Projects include highway construction,. download letting plans, proposals, proposal addenda and plan revisions, and contract plans. This is a free service. Read the license agreement below, and if accepting, click. Construction…