BNSF Railway said Thursday that flood waters have interrupted train movements through Lincoln to Kansas City, Memphis, St. Louis, Sioux City, and Galesburg, Ill.
Customers may experience delays of 24 to 72 hours on shipments moving through this corridor, the railroad said.
"BNSF is managing traffic flows through the affected areas, detouring trains where alternate routes are available and making every effort to alleviate the effects of the flooding on your shipments," the railroad told carload shippers, promising to keep them informed.
Spokesman Andy Williams had no damage estimate and BNSF did not disclose the specific locations of the flooding.
Union Pacific Railroad spokesman Mark Davis reported no flood damage or reroutings.
In other developments related to flooding and damaging thunderstorms:
Rip-rap for banks
Officials are working to stabilize the banks of the Elkhorn River near Norfolk after last week's flooding.
Erosion from the flooding had damaged the banks near where a railroad bridge collapsed and threatened to do additional damage to nearby railroad tracks.
Union Pacific is working with the Nebraska Central Railroad to bring in more than 40 traincar loads of rip-rap -- large chunks of rock -- to stabilize the banks and stop erosion, but the rock delivery has been slowed by flooding in Iowa and Missouri.
Officials with the U.S. Army Corps of Engineers said Thursday it's common to see bank erosion and minor changes in a river's channel like this during a large flood, but they're not aware of any major changes in the course of the Elkhorn.
New boil order is issued for Kenesaw
A boil order has been reissued for Kenesaw in south-central Nebraska.
Tests on two water samples taken Monday showed the presence of E. coli bacteria, so another health warning was issued. The village utilities department is running more chlorine through the system.
Under boil orders, people are urged to use bottled water or to boil their tap water for up to five minutes before drinking it or cooking with it.
Adams County officials had issued the first boil order after the village water system lost pressure when lightning damaged a pump panel.
That warning was lifted June 17 with plans to recheck the water this week.
The village population was estimated at 912 in July 2008.
Owners of wells urged to test water
Nebraskans worried about the quality of their well water because of flooding have places to go.
The Central District Health Department in Grand Island is able to test well water for coliform bacteria in the majority of public and private wells statewide. It is an alternative for people living in rural areas far from Lincoln, where testing is also done.
Call 308-385-5175, extension 166, for more information.
Homeowners can order kits from the state lab in Lincoln by calling 402-471-3935.
Also, Midwest Laboratories in Omaha is helping with testing in eastern Nebraska. Flood victims there can call 402-334-7770.
Nelson bill: Extend flood insurance
Democratic U.S. Sen. Ben Nelson says he will co-sponsor legislation in the Senate to extend the National Flood Insurance Program through the end of this year.
The program expired on May 31. Nelson says that because flood insurance is required by law in order to obtain a mortgage in a 100-year flood plain, he has heard from many Nebraskans whose home sales have been delayed by the expiration.
The reauthorization has been included a bill now stalled in Congress. The measure Nelson is co-sponsoring is a stand-alone bill.
U.S. 275 reopens
State officials said U.S. 275 between Scribner and West Point, including the 91/275 junction, has reopened after having been closed by water across the road.
The state Department of Roads online map shows eight roads remain closed due to flooding on collapsed surfaces:
* Nebraska 2, eastbound at milepost 168 (3 miles east of Grant-Hooker County line)
* U.S. 83, southbound at milepost 164 (14 miles north of junction with Nebraska 2 east of Thedford)
* Nebraska 92, east and westbound from milepost 333 (0.9 mile west of Sherman-Howard County line to milepost 333 (west of Sherman-Howard County line)
* Nebraska 96 from milepost 0 to milepost 20 (road surface collapse)
* Nebraska 159, north and southbound from milepost 13 (0.5 mile south of Rulo) to milepost 13 (south of Rulo)
* Nebraska 159, from milepost 4.13 to milepost 13.89
* U.S. 183, north and southbound from milepost 150 (1.8 miles north of Loup-Rock county line) to milepost 151 (2 miles north of the county line)
* U.S. 183 from milepost 154.62 to milepost 182.34