SEOUL, South Korea (AP) _ North and South Korea made progress in talks on building a dam to control flooding across their heavily armed border, South Korean pool reports said Friday.

A three-member South Korean delegation began four days of talks in Pyongyang, the North's capital, on Wednesday to discuss ways of preventing chronic monsoon floods along their border.

To build a dam on the Imjin River flowing across the western sector of the border, South Korea proposed that both sides conduct field surveys of the area beginning in March, said the pool reports.

South Korean officials also proposed that both sides exchange weather reports during the summer rainy season beginning this year, they said.

``Both sides are expected to be able to produce an agreement before ending the talks on Saturday,'' said the reports without elaboration.

The flood talks are among several channels opened between the former Cold War adversaries since their leaders held a historic summit in June and pledged to pursue economic cooperation and political reconciliation.

The western border region has been plagued by recurrent floods during the summer monsoon season. Property damage in South Korea totaled $1.3 billion during 1996-1999.

North Korea also reported heavy annual flood damage in the area but gave no estimates of losses.

The Korean Peninsula was partitioned into the communist North and pro-Western South in 1945 at the end of World War II. The 1950-53 Korean War ended without a peace treaty and the border remains sealed.