The city may by agreement co-operate with the county in the acquisition, construction or maintenance of designated county highways or portions thereof within the city in one or more of the following ways:
(a) Contribute money or property;
(b) Acquire and deliver material;
(c) Furnish labor, legal or engineering services;
(d) Loan its highway equipment;
(e) Contribute money to be used for the payment of interest upon, or for the payment or redemption of bonds, the proceeds of which have been used for work on county highways within the city.
(Added by Stats. 1961, Ch. 876.)