Peoria and Pekin Union Railway

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The Peoria and Pekin Union Railway (AAR reporting marks PPU) began operating in 1881 and still runs today. Its main yard and roundhouse are in East Peoria, Illinois, and it owns track on both sides of the Illinois River. The company also owns a rail bridge over the river. However, the P&PU is not a major railway that carries freight across the United States; instead, it is a gateway or interchange point for other railways.

Most railways are regional and do not own track all the way across the nation, so their lines end at some point. Since the late 1800s, many railways have chosen to end their lines near Peoria, Illinois. When a train car reaches the end of one rail line, it must be switched to a different line in order to continue on to its destination. P&PU engines are responsible for picking up the cars at the end of other railways' lines and bringing them back to the main yard in East Peoria. Employees then sort the cars based on which railway will take them to their next stop. After these new trains have been formed, P&PU engines take the cars to the beginning of that rail line where they will continue their journey. That company's engines then pick up the cars and take them to their destination.

By 1944, the P&PU was switching 14 major railways that ran into Peoria, an unusually high number of railways for a city the size of Peoria. The P&PU currently switches trains for 8 other railways, handles over 170,000 cars per year, and is owned jointly by the Canadian National, Norfolk Southern, and Union Pacific Railways.

edit Current (operating) Class III railroads of the United States (Class I railroad - Class II railroad)

AA, ABCR, ABS, ACWR, ADBF, AF, AGCR, AGR, AKDN, ALAB, AL, AKMD, ALM, ALY, AM, AN, ANR, AOK, APNC, ARS, ATLT, ATN, ATW, AUAR, AVR, AZER, BAYL, BB, BCR, BCLR, BDRV, BGCM, BJRY, BLOL, BRAN, BS, BSV, BT, BXN, CAGY, CBEC, CBGR, CCIM, CEDR, CFNR, CFWE, CGR, CHS, CIC, CIRR, CIRY, CLC, CLNA, COEH, CORP, CRL, CSOR, CTRR, CUOH, CVSR, CVYR, CWRY, CZRY, DAIR, DCON, DLWR, DMM, DMVW, DN, DQE, DR, DRHY, DRIR, DSRR, DVS, EACH, EARY, EDW, EIRR, ELKR, ETRY, EVWR, FCRD, FGLK, FGRS, FMRC, FP, FSR, FWRY, FWWR, GBRC, GC, GITM, GNWR, GSVR, GSWR, GWWE, HE, HMCR, HRRC, HRT, IANR, IATR, IMRR, IN, INRD, IORY, IR, ISRR, JEFW, JVRR, KCT, KBSR, KJRY, KRR, LAL, LIRC, LIRR, LCR, LDRR, LNW, LRPA, LRWN, LS, LXVR, MB, MCR, MCRR, MDS, MDW, ME, MET, MMID, MNA, MNN, MNNR, MPA, MPLI, MSRW, MSTR, MSWY, MTR, NBER, NCRC, NCVA NECR, NENE, NHN, NPBL, NPR, NRI, NSSR, NYA, NYCH, NYSW, OTR, OHIC, OHPA, OHRY, OTVR, OUCH, PAM, PBL, PCN, PGR, PI, PNW, PNWR, POHC, POTB, PPU, PSAP, QRR, RBMN, RJCW, RPRC, RRCI, RRVW, RSOR, RSR, RSS, SAPT, SB, SCFE, SCXY, SDIY, SGLR, SJVR, SL, SLA, SMV, SQVR, TCBR, TCW, TMBL & TRMW, TR, TRC, TRRA, TTR, TZPR, UTAH, VR, VCRR, VSRR, WGCR, WKRL, WLO, WN, WPRR, WSR, WTRY, WW, YKR, YRC

Historic (fallen flag) Class III railroads of the United States

DAKR, DTRR, ESHR, NFD, PSR, TIRL, TXTC