An American Indian tribe will lay out its plan to build a casino near Oakland International Airport on Thursday, but competing casino proposals and community opposition could dim the tribe's prospects.

The Lower Lake Rancheria Koi Nation, based in Santa Rosa, is the latest tribe to propose an urban casino in the San Francisco Bay area, where residents and lawmakers are worried about the impact of tribal gaming on traffic, crime and the environment.

The Koi tribe, which regained federal recognition in 2000, estimates its proposed casino will create 2,200 jobs in Oakland. Tribe members plan to announce more details Thursday.

The Koi tribe, which has about 30 members, is one of several tribes that have approached city officials about building a casino in Oakland.

Mayor Jerry Brown expressed interest in the idea until late August, when Gov. Arnold Schwarzenegger announced a deal with the Lytton Band of Pomo Indians to build a 2,500-slot-machine facility in San Pablo, about 15 miles north of Oakland, according to T.T. Nhu, the mayor's press secretary.

Under that deal, which still awaits the legislature's approval, the state would receive 25 percent of the casino's gambling revenue and guarantee that no other casinos operate within a 35-mile radius. That compact, if approved, could kill other casino proposals in the Bay Area.

"(Mayor Brown) was interested in exploring the idea of an Indian casino in Oakland because it would have meant extra income for Oakland," Nhu said. "Now we're stepping back to see what happens with the San Pablo casino."