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The people living .. floodadout, and many groundandsafc+y. tOl<n).. .wereina deep." . along the banks of the river I<erC abandoned their homes for higher . . homes (in tho lowar part of roaring Sea of wilter2and3 feet 1. ~i1:i .!?~.7 - :>..oring the nIght of 8 and 9 ~ay approxhetely 3to5inchesofrainfellovertheentirebaslnofSt.VrainCreek. Thc rain boganaboot 10 p.m. and stopped about 6a.m. with St. IIraln Creek peak I ng at Lyons a boo t I ".m. on 9 .~"y at 3,060 c. f . s . The flooddam"ged and destroyoo irrlgationdiversionworksandbridgos downstream from Lyons. Anothorcrestonthe foliowingday aga,nflooded hcusesIn the lower areas of town and washed cut 300 yards of railroad track east of Lyons. The peak discharge on 30 July ...as later ccnputed to be9,400c.f.s. TherlghtbankofNorthSt.llralnCreekwasfloodoo to a width of 300 feet. I2_J~n~19~.1 M The I"rgest peak discharge of record on St. IIraln Creek at Lyons Is 10,500 c.f.s. on 22 June 1941. ThIs flood originated mostly On South St. IIrain Creek and the creek peaked vcry rapidly with floodwaters receding quickly. ItisasS\Jmedth"tan extrallely localized cloodburstoccurroo CNer South St. VrainCraek "shortdistanceupstraam from Lyons. ~:i~n! .:!..u~e_I2.52. - Heavy rainhl i combined with sn~lt runoftC<lusedprolongedhlghflowsonSt.VralnCreek. Thaworst flooding occurred on 7 and 8 ~ay and from 15 to 2\ June. Roads and bridges "long the stre"m werc extensively damaged, stream bankS were arodad, f"rmlands were flooded. The peak discharge at Lyons w"s 2,900 c.I.s. on 7 May. VariOUS flood p~togr"phs are shown on this and the following pages. l ~au~t_I2.51- Lyons roceived 6.3 inches of rain fran a cloudt>Jrsttypestormthatbeg,,,,about6p.m.on3I1oJgust. This combined wIth general heavy rains over the basin +0 causa flooding from Lyons to the mouth of St. Yrain Creok. Flood duration was less than 12 hours. SeverodiO'11ageresultedtothehighwayalong SouthSt.VrainCreek.lntheruralaroasdownstreomfromLyons ~uch shockod grain was waShed from tho fieldS. " i.:!..u~e_I2:'I2. M The eff9Cts of this flood were felt largoly downstream 01 Lyons. Prolonged rainfall a.~d heavy sno,,",,"lIt runoff kept St. Vraln Creek out of its banks in the rural "reas during most 01 the month of Juno and bridges, roads, and irrig<ltlonhaadworks weredam"g...J. - '... '." '...~~-;.:;; '. ._..... ,w . .~ - - ~..'"',.,. ,.",;;." ~'".'..- .;:v-: ~'7; p;'" - ,- v';";>. . ,;;:-'.1:..:" -",.;.:" "_. ;.,,.;: .... - .,<"'-".....-~ "'~ " '0- __ . ..-;:-........... " Figure 9. St. IIrain Creok, MolY 9, 1957 ~ Overf low at south (lnd 01 High,I<ly7 bridge near Lyons. IJ "