Whenever a wearing-floor is used, the lower planks must be planed on the upper side and sized to a uniform thickness, and the wearing-floor must be planed on the lower side so as to ensure a perfect bearing between upper and lower floors.

Floor-planks for foot walks shall be at least two (2) inches thick and not much more or less than six (6) inches wide, and shall be laid with one-half (1/2) inch openings. Each of said planks shall be spiked to each joist upon which it rests by two (2) six (6) inch cut spikes, the holes for same being bored.

All planks shall be laid with the heart side down.

There shall be a wheel-guard of a scantling not less than four (4) inches by six (6) inches on each side of the roadway to prevent wheel hubs from striking the trusses. It is to be laid on its flat, and blocked up from the floor by shims at least one (1) foot long, six (6) inches wide, and two (2) inches thick spaced not more than seven (7) feet between centres, each shim being spiked to the floor by four (4) four-and-a-half (4 1/2) inch cut spikes. The guard-rails are to be bolted to the floor through the centre of each shim by a three-quarter (3/4) inch bolt, which must also pass through the joist beneath. When the guard-rails are bolted to the wooden hand-rail posts, the bolt-heads are to be countersunk into the guard-rail, so as to make a flush surface on the inner face of same. The joints in the guard-rail are to be lap-joints, at least six (6) inches long, each located symmetrically over the middle of a shim. When a bridge is on a heavy grade, the inner, upper corners of the guard-rails are to be covered with steel angles fastened to the timber by countersunk screws, spaced about eighteen (18) inches apart, so as to protect the guard-rails from the injurious effects of using them instead of wheel-brakes for heavily-loaded wagons.

When wooden hand-rails are employed, they are to be made of pine, the posts being 4" X 6" X 4' 6" to 5', with two (2) runs of 2" X 6" timbers—one on its flat and the other below on edge to support the first for a hand-rail—and one (1) run of 2" X 12" hub-plank.

The posts are to be spaced not to exceed ten (10) or, preferably,  eight (8)  feet  apart.  The hand railing is to be firmly