route problem

Hello

I have this routes.rb

Tamara::Application.routes.draw do
ActiveAdmin.routes(self)

devise_for :admin_users, ActiveAdmin::Devise.config

resources :users

resources :category do
resources :berichten
end

end

So I thought that localhost:3000//bericht/new I could write a new bericht which is stored in the
But when I look at rake routes I dont see that route.
rake routes gives this :
admin_root /admin(.:format) admin/dashboard#index
batch_action_admin_admin_users POST /admin/admin_users/batch_action(.:format) admin/admin_users#batch_action
admin_admin_users GET /admin/admin_users(.:format) admin/admin_users#index
POST /admin/admin_users(.:format) admin/admin_users#create
new_admin_admin_user GET /admin/admin_users/new(.:format) admin/admin_users#new
edit_admin_admin_user GET /admin/admin_users/:id/edit(.:format) admin/admin_users#edit
admin_admin_user GET /admin/admin_users/:id(.:format) admin/admin_users#show
PUT /admin/admin_users/:id(.:format) admin/admin_users#update
DELETE /admin/admin_users/:id(.:format) admin/admin_users#destroy
batch_action_admin_berichtens POST /admin/berichtens/batch_action(.:format) admin/berichtens#batch_action
admin_berichtens GET /admin/berichtens(.:format) admin/berichtens#index
POST /admin/berichtens(.:format) admin/berichtens#create
new_admin_berichten GET /admin/berichtens/new(.:format) admin/berichtens#new
edit_admin_berichten GET /admin/berichtens/:id/edit(.:format) admin/berichtens#edit
admin_berichten GET /admin/berichtens/:id(.:format) admin/berichtens#show
PUT /admin/berichtens/:id(.:format) admin/berichtens#update
DELETE /admin/berichtens/:id(.:format) admin/berichtens#destroy
batch_action_admin_categories POST /admin/categories/batch_action(.:format) admin/categories#batch_action
admin_categories GET /admin/categories(.:format) admin/categories#index
POST /admin/categories(.:format) admin/categories#create
new_admin_category GET /admin/categories/new(.:format) admin/categories#new
edit_admin_category GET /admin/categories/:id/edit(.:format) admin/categories#edit
admin_category GET /admin/categories/:id(.:format) admin/categories#show
PUT /admin/categories/:id(.:format) admin/categories#update
DELETE /admin/categories/:id(.:format) admin/categories#destroy
admin_dashboard /admin/dashboard(.:format) admin/dashboard#index
batch_action_admin_users POST /admin/users/batch_action(.:format) admin/users#batch_action
admin_users GET /admin/users(.:format) admin/users#index
POST /admin/users(.:format) admin/users#create
new_admin_user GET /admin/users/new(.:format) admin/users#new
edit_admin_user GET /admin/users/:id/edit(.:format) admin/users#edit
admin_user GET /admin/users/:id(.:format) admin/users#show
PUT /admin/users/:id(.:format) admin/users#update
DELETE /admin/users/:id(.:format) admin/users#destroy
batch_action_admin_comments POST /admin/comments/batch_action(.:format) admin/comments#batch_action
admin_comments GET /admin/comments(.:format) admin/comments#index
POST /admin/comments(.:format) admin/comments#create
admin_comment GET /admin/comments/:id(.:format) admin/comments#show
new_admin_user_session GET /admin/login(.:format) active_admin/devise/sessions#new
admin_user_session POST /admin/login(.:format) active_admin/devise/sessions#create
destroy_admin_user_session DELETE|GET /admin/logout(.:format) active_admin/devise/sessions#destroy
admin_user_password POST /admin/password(.:format) active_admin/devise/passwords#create
new_admin_user_password GET /admin/password/new(.:format) active_admin/devise/passwords#new
edit_admin_user_password GET /admin/password/edit(.:format) active_admin/devise/passwords#edit
PUT /admin/password(.:format) active_admin/devise/passwords#update
users GET /users(.:format) users#index
POST /users(.:format) users#create
new_user GET /users/new(.:format) users#new
edit_user GET /users/:id/edit(.:format) users#edit
user GET /users/:id(.:format) users#show
PUT /users/:id(.:format) users#update
DELETE /users/:id(.:format) users#destroy
category_berichten_index GET /category/:category_id/berichten(.:format) berichten#index
POST /category/:category_id/berichten(.:format) berichten#create
new_category_berichten GET /category/:category_id/berichten/new(.:format) berichten#new
edit_category_berichten GET /category/:category_id/berichten/:id/edit(.:format) berichten#edit
category_berichten GET /category/:category_id/berichten/:id(.:format) berichten#show
PUT /category/:category_id/berichten/:id(.:format) berichten#update
DELETE /category/:category_id/berichten/:id(.:format) berichten#destroy
category_index GET /category(.:format) category#index
POST /category(.:format) category#create
new_category GET /category/new(.:format) category#new
edit_category GET /category/:id/edit(.:format) category#edit
category GET /category/:id(.:format) category#show
PUT /category/:id(.:format) category#update
DELETE /category/:id(.:format) category#destroy

So where is my route ?

Roelof