Minnesota Administrative Rules

8820.9986 MINIMUM DESIGN STANDARDS: NATURAL RESERVATION ROUTES, DESIGNATED NATIONAL FOREST HIGHWAYS WITHIN NATIONAL FORESTS, AND STATE PARK ACCESS ROADS WITHIN STATE PARKS; RECONDITIONING PROJECTS.

Reconditioning projects for natural preservation routes, designated national forest highways within national forests, and state park access roads within state parks must meet or exceed the minimum dimensions indicated in the following design chart.

TYPE I, II, OR III ROUTE

Proposed Design Strength	Pavement Width	Shoulder-to-Shoulder Width
(tons)	(feet)	(feet)
7	22 (a)	26 (a)

(a) Natural preservation routes may be reconditioned to existing pavement and shoulder widths.

Widths of bridges to remain in place must equal pavement width. A bridge narrower than these widths may remain in place if the bridge does not qualify for federal-aid bridge funds. H 15 loading is required.

Statutory Authority:

MS s 162.02; 162.09

History:

20 SR 1041; 23 SR 1455; 24 SR 1885; 29 SR 449

Published Electronically:

October 15, 2007