• § 491. Approval of and deviation from plans; exemptions

• § 492. Bridge as post route; limitation as to charges against Government; telegraph and telephone lines

• § 493. Use of railroad bridges by other railroad companies

• § 494. Obstruction of navigation; alterations and removals; lights and signals; draws

• § 494a. Study of bridges over navigable waters

• § 495. Violations of orders respecting bridges and accessory works

• § 496. Time for commencement and completion of bridge

• § 497. “Persons” defined

• § 498. Reservation of right to alter or repeal

• § 498a. Repealed.

• § 498b. Repealed.

• § 499. Regulations for drawbridges

• § 500. Deflection of current; liability to riparian owners

• § 501. Omitted

• § 502. Alteration, removal, or repair of bridge or accessory obstructions to navigation

• § 503 to 507. Repealed.

• § 508. Amount of tolls