| Flood Impacts |
| 34.0 | Flood of record height is in progress. In areas that are not protected by levees, water has never been this high. Flood destruction is great in much of western Gibson County Indiana and eastern Wabash County Illinois. Many agricultural levees fail. Although this is the highest river stage of record, the flood flow is still less than March 30, 1913. Such a flood flow would reach an estimated 36 feet. Maximum Probable Flood estimated at 39 feet given current hydrological conditions. |
| 33.0 | The Wabash River is at the flood crest of March 1913...the highest ever. All unprotected flood plain areas are flooded to record height. This includes the northern outskirts of Mount Carmel, Illinois, western Gibson County Indiana and eastern Wabash County Illinois. Widespread flood destruction. A flood with the flow of March 1913 would reach an estimated 36 feet and cause failure of some agricultural levees and widespread rural flood destruction. |
| 32.0 | Beginning of a major flood. Extensive flooding of western Gibson County Indiana, eastern Wabash County Illinois and the northern outskirts of Mount Carmel. Numerous local roads are impassable. Some evacuations are necessary. Some agricultural levees fail. |
| 31.0 | Much of Western Gibson County is underwater. Some evacuations are necessary. New Baltimore (Black Hawk River Camp) about 1 1/2 miles south of Griffin floods extensively. Extensive flooding on the northern outskirts of Mount Carmel, Illinois. Numerous local river roads are underwater...some by a few feet. A few agricultural levees fail. River is 3 miles wide at I-64. |
| 30.5 | Extensive flooding in East Mt. Carmel Indiana. The road through East Mount Carmel is impassable. Most structures in this area are elevated 2 to 3 feet above current flood waters. Vehicles must be parked on higher ground. |
| 30.0 | Extensive flooding in progress on the northern outskirts of Mount Carmel and in western Gibson County Indiana with some evacuations needed. Flooding may cause some evacuations and relocation of motorized land vehicles. Numerous local river roads are flooded. Beall Wood conservation area has 160-200 acres flooded. High water backs up into Bon Pas Creek. Browns, Illinois may be surrounded by water if heavy local rain occurs. River is 3 miles wide at I-64. |
| 28.0 | Critical Stage of Rochester-Mcleary Bluff Levee. Cattle and farm equipment must be moved. Most roads along river or near river are now impassible. Agricultural losses 100 percent in areas that are not protected by levees. The Wabash River is more than 2 miles wide at I-64. |
| 26.0 | Relocations of cattle and some farm equipment is necessary to higher ground. Agricultural losses are near 100 percent in areas that are not protected by levees areas. Extensive lowland flooding in western Gibson County Indiana. |
| 25.5 | Extensive lowland flooding in progress. Much of the flood plain activity is affected by high water. Numerous local river roads flood. |
| 24.0 | Extensive lowland flooding in progress. Some mobile homes must be moved if water rises higher. Installation of flood gate A at Mount Carmel is necessary. Access to local camp sites are blocked, but minimal impact to commercial activities because of gate closure. Several local roads are impassable. Manual readings of river gage harder to get. |
| 22.0 | Flood waters begin to affect residents of East Mt. Carmel, Indiana. Fifth Street that parallels river closes. Twin restaurant along the river also closes. Several local river roads flood. |
| 21.0 | River Road in the Mount Carmel, Illinois area begins to flood. Lowland flooding in progress. A few local river roads are closed by high water. |
| 20.0 | River is bankfull in all locations. All oil field production ceases with the exception of pumping units on substructures. Access to these are by boat only. Agricultural losses increase dramatically. Farmers move livestock to higher ground. City of Mount Carmel leaves flood gates B and C in year round. |
| 18.0 | River is bankfull in nearly all locations. Many river cabins become inaccessible. Oil field producers stop most production where pumping units are not on substructures. Agricultural losses become more extensive. County road along the river settlement Pulleyville north of Mount Carmel floods. |
| 17.0 | Additional low crop land downstream of Mount Carmel begins to flood. |
| 16.0 | Agricultural flooding becomes more extensive. Water depth is now sufficient to result in some damage to crops. A few oil wells become isolated with access by boat only. Isolated roads near river become impassible. |
| 14.0 | River becomes bankfull in many locations. A small amount of lowland agricultural flooding occurs. This results in minimal crop damage during agricultural season. |
| 12.0 | In extreme lowland areas, sloughs near the river begin to fill reaching river water level. Lowland flooding occurs in 599 acre Beall Wood Conservation Area south of Mt. Carmel near Bellmont, IL. |
| 11.5 | Lowest oil well of Noble Energy in southwest Indiana begins to flood. |
| 10.0 | A few very low oil fields begin to flood. |
