delivered the opinion of thé Court.
The Alabama
&
Vicksburg Railway and the Jackson & Eastern Railway are both Mississippi corporations. Each owns and operates in intrastate and interstate commerce a railroad within that State. The latter instituted a proceeding under a state law to secure by eminent domain a connection with the former’s line at a point east of the City of Jackson, called Curran’s Crossing. Prior to instituting the eminent domain proceeding the Jackson & Eastern had secured from the Interstate Commerce Commission a certificate under paragraphs 18-20 of § 1, authorizing the extension of its road from Sebastapol, Mississippi, to Jackson. The order made no reference to Curran’s Crossing, or to any connection with the Alabama & Vicksburg.
Public Convenience Certificate of Jackson & Eastern Ry. Co.,
70 I. C. C. 110, 495. Thereafter, but also before instituting the eminent domain proceeding and before building the extension authorized, the Jackson & Eastern applied to the Commission for an order authorizing it .to connect with the main line of the Alabama & Vicksburg at Curran’s Crossing, and requiring the latter to grant a joint’ use of its main line from that point into the City of Jackson. This application, which had apparently been filed under paragraph 9 of § 1 of the Interstate Commerce Act, was withdrawn without a hearing. Compare
United States
v.
Baltimore & Southwestern R. R. Co.,
*246
By the constitution and -statutes of Mississippi a railroad corporation organized under the laws of that State may “ cross, intersect, join, or unite its railroad with any other railroad heretofore or hereafter constructed at any points on their routes, and. upon the ground of such other railroad company, with the necessary and proper turnouts, sidings, switches, andother conveniences, and . . . [may] exercise the right of eminent domain for that purpose.” Constitution of 1890, §§ 184, 190; Hemingway’s Code, §| 6722, 6725; 6728. This right of eminent dpmain is exercised by proceedings in a special court which has jurisdiction to determine.only the amount of the damages payable. The special court cannot pass upon the-right of a plaintiff to institute the proceeding or upon any defense or other objection. Nor can any such question be raised. upon an appeal from, the judgment of the special court. The sole remedy of the objecting railroad is a separate proceeding, to be brought in' a court of equity. Hemingway’s Code, § 1492;.
Louisville & Nashville R. R. Co.
v.
Western Union Tel. Co.,
This suit was brought by the Alabama & Vicksburg in the appropriate Chancery Court of the State to enjoin the Jankson & Eastern from pursuing the eminent domain proceeding. The bill alleged willingness to'permit a junction, but asserted that the point selected by the defendant was an improper qne, would imperil the safety of life and property, would burden interstate commerce and would be prejudicial. to the plaintiff’s interests. It asserted, among other grounds of relief, the claim that the Interstate-Commerce Commission, has exclusive jurisdiction over the establishment of junctions or physical connections between railroads engaged in intérstate commerce, that the Commission had not authorized the connection
*247
here in question, and that the institution of eminent domain proceedings was therefore in violation of the federal law. A restraining order issued upon the filing of the bill. Later, the Chancellor sustained a demurrer to the bill for want of equity; dissolved the injunction; and denied supersedeas pending an appeal to the Supreme Court of the State. That court allowed a' supersedeas,
In
Wisconsin, Minnesota & Pacific R. R.
v.
Jacobson
The Act to Regulate Commerce, February
4r
1887, c. 104, 24 Stat-. 379, provided, by what is now paragraph 3 of § 3, that carriers shall
“
afford'all reasonable, proper, and equal facilities for the interchange of traffic between their respective lines;” but it did not confer upon the Commission authority to permit and to require the construction of the physical connection needed to effectuate such interchange. . Paragraph 9 of § 1, introduced by Act of June 8, 1910, c. 309, §. 7, 36 Stat. 539, 548, required a carrier engaged in interstate commerce to construct a switch ' connection
“
upon application of any lateral, branch line ” and empowered the Commission to enforce the duty; but that provision was held applicable only to a line already constituting a lateral branch road.
United States
v.
Baltimore & Ohio Southwestern R. R. Co.,
The only limitation set by 'Transportation Act, 1920, upon the broad powers conferred upon the Commission over the construction, extension and'abandonment of the lines of carriers in interstate commerce, is that introduced as' paragraph 22 of § 1, which excludes from its jurisdiction
“
spur, industrial, team, switching or side tracks, located wholly within one State, or of street, suburban, or interurban electric railways, which are not operated as a part or parts of a general steam railróad system of transportation.” It is clear that the connection here in question is not a track of this character. Compare
Texas & Pacific Ry. Co.
v.
Gulf, Colorado & Santa Fe Ry. Co.,
It is true that in this' case the state court found that the place selected for the junction was a proper one. But the power* to make the determination whether, state action will obstruct interstate commerce inheres 'in the United States as an incident of its power to regulate such commerce. Compare
Colorado
v.
United States, ante,
p. 153. In matters relating to the construction, equipment, adaptation and use of interstate railroad lines, with the exceptions specifically set forth in paragraph 22, Congress has vested in the Commission the authority to find the facts and thereon to exercise the necessary judgment. The Commission’s power under paragraph 3 of § 3 to require the establishment of connections between the main lines of carriers was asserted by it in
Pittsburg & West Virginia Ry. Co.
v.
Lake Erie, Alliance & Wheeling R. R.,
81 I. C. C. 333, a case decided after the withdrawal by the Jackson & Eastern of its application to the Commission for leave to make the junction at Curran’s Crossing, and in
Breckenridge Chamber of Commerce
v.
Wichita Falls, Ranger & Fort Worth R. R. Co.,
109 I. C.. C. 81. That its jurisdiction is exclusive was held in
People
v.
Public Service
Commission,
Wñt of certiorari denied.
Decree reversed.
